BCDA Remaining Infrastructure Works inside Bonifacio Global City, Package 2
Section VI
Technical Specifications
PART J – ELECTRICAL
J.1
GENERAL PROVISIONS
J.1.1
General Description
The work to be done under this Division of the specifications consists of the fabrication,
complete in all details, of the Electrical Work, at the subject premises, and all work and
materials incidental to the proper completion of the installation, except those portions of
the work which are expressly stated to be done by others. All work shall be in
accordance with the governing Codes and Regulations and with the Specifications, except
where same shall conflict with such codes, etc., in which case, latter shall then govern.
The requirements in regard to materials and workmanship specify the required standards
for the furnishing of all labor, materials and appliances necessary for the complete
installation of the work specified herein and indicated on the drawings. These
specifications are intended to provide a broad outline of the required installation, but are
not intended to include all details of design and construction. 1.1 Definitions.
J.1.2
Definitions
The following definitions are deemed to apply:
The “Employer” shall mean:
Fort Bonifacio Development Corporation
The “Engineer” shall mean:
United Technologies Incorporated
The “Supervisor” shall mean:
Those persons appointed by the Employer/Lead Consultant/Main Consultant to supervise
the execution of the MEP Services Contract Works on behalf of the aforementioned.
The “Main Contractor” shall mean:
The Company appointed to carry out the building of the project.
The “Contractor” shall mean:
The Company appointed to carry out the supply and installation of the MEP Services, the
subject of this Specification and as stated in the Letter of Invitation to Tender. The
Contractor shall also mean the Tenderer as referred to within this specifications.
The “Main Contract” shall mean:
The Contract between the Main Contractor and the Employer.
The “Contract Documents” shall mean:
The Form of Tender, this Specifications, the drawings relating to the Works, other
documents included in the Invitation to Tender and the Letter accepting the Tender.
The “Site” shall mean: Bonifacio Triangle
All necessary Equipment, apparatus, materials, machinery, appliances, accessories and
associated sundries required to make a complete installation.
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Section VI
Technical Specifications
The “Contract Works” shall mean:
The subject of this Specification, Schedules and associated drawings, including the supply
of Equipment, its transport to Site, unloading, putting into store, unpacking, assembly,
handling, location, installation, connection, testing, setting to work and repair of defects,
etc, all as set out in the Main Contract. The provision of skilled and unskilled labor, the
supply of all necessary tools, appliances, etc. necessary for the installation of Equipment
and execution of the Contract, the removal from the Site, from time to time of all surplus
material and garbage caused by the site.
The word “Indicated” shall mean:
Indicated as used in “as indicated”, “where indicated”, unless otherwise indicated and like
phrases shall mean indicated elsewhere in the Contract Documents.
J.1.3
Work Included
Under this Division of the Specifications, provide all materials and equipment and
perform all the work necessary for the complete execution of all the Electrical works
as shown on the electrical drawings, and on the general construction drawings, as herein
specified, or both, except as otherwise excluded, and which without excluding the
generality of the foregoing, shall include but not be limited to the following principal
items of work:
a. Supply and installation of proposed panelboard located at 9th St., 38th St. , 11th Avenue.
b. Low voltage power distribution ductworks serving lamp posts. Included are the
ductworks in concrete encasement that traverse across roadways.
c. Supply and installation of all handholes and manholes
d. Supply and installation of lamppost including lamps as per approved by BCDA.
e. A complete grounding system as per plan
f.
Complete testing of all electrical system
f.1 Megger Testing
f.2 Ground Resistance Test
g. Optional items of work.
h. Painting of lampost.
i.
Where materials are furnished and supplied by the Owner, the contractor shall
receive, unload, handle transport, assemble, and install complete. This contractor
shall be responsible for breakages, pilferage, etc. of such equipment from the time
he accepts delivery until the Owner accepts the installation.
j.
Coordination with companies/offices including handling of all matters related to power
service, telephone services & permits.
k. Supply and installation on site the padmount transformer as per Meralco standard.
l.
Supply and installation of wires and cables.
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J.1.4
Section VI
Technical Specifications
Codes, Inspection, Permits and Fees
a. The work in this contract is to be installed according to the latest requirements of
the following:
 Philippine National Building Code
 Philippine Electrical Code
 MERALCO
 Latest requirements/Standards set by BCDA
Nothing contained in these specifications or shown on the drawings shall be
construed as to conflict with National and Local ordinances or laws governing the
installation of electrical work, and all such laws and ordinances are hereby made
part of these specifications. The Contractor is required to meet the requirements
thereof.
b. Codes and standards of following specifications other than mentioned above are
referenced in this Division:
1.
2.
3.
4.
5.
6.
7.
Certified Ballast manufacturers (CBM)
Electrical Testing Laboratory (ETL)
Insulated Power Cable Engineers Association (IPCEA)
National Fire Protection Association, National Electrical Code (NEC)
National Electrical Manufacturers Association (NEMA)
Underwriters Laboratories , Inc. (UL)
Illuminating Engineering Society (IES)
c. All construction permits required for this work shall be obtained by the Contractor
fees shall be for the Owner’s account. The Contractor shall furnish the Architect, the
Engineers and the Owner final certificates of inspection and approval from the
proper government authorities after the completion of the work. The Contractor shall
prepare all shop or working drawings, as-built plans and all other paperwork
required by the approving authorities.
d. Approval from authorities of all plans for construction shall be secured by the
Contractor.
J.1.5
Record Drawings
a. The Contractor shall, during the progress of the work, keep a record of all
deviations of the actual installation from that shown on the Contract drawings.
b. The Engineers will furnish the contractor at cost a complete set of blue prints on
which he shall indicate all changes and revisions. Copies of these blue prints,
indicating such changes as revisions shall be submitted to the Engineers.
c. Upon completion of work, the Contractor shall submit two (2) copies of the As-built
drawings, indicating the work as actually and finally installed, including new
information not originally shown in Contract Drawings, to the Engineers for
approval as to conformance with the design concepts and compliance with pertinent
Code provisions.
e. Approval of the As-built drawings by the Engineers shall be a requirement for final
acceptance of the completed works and for final payment.
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J.1.6
Section VI
Technical Specifications
Shop Drawings, Samples and Other Submittals
a. Contractor shall prepare and submit to Engineers for approval the following:
1. Complete connection, schematic wiring, and riser diagrams for all the auxiliary
systems installed.
2. Manufacturer’s catalog sheets with complete technical data, marked as necessary
to indicate materials, devices and equipment being furnished.
3. Samples and/or manufacturer’s catalog sheets of the following:
3.1 Bare copper wire
3.2 Cut segment of ground rods
3.3 Sample of circuit breaker and panelboard enclosure (to sent at site office).
3.4 Sample board of wires and conduits
3.5 Samples of metal weld using contractor’s proposed exothermic process.
3.6 Samples of lamp and its corresponding lamp ballasts
4. Detailed shop drawings for installation and mounting of panelboards, hand holes,
manholes, concrete encasements, grounding detail, lamp post installation detail.
5. Field test reports for the following:
a. Insulation resistance tests
b. Ground resistance test
6. List of miscellaneous materials proposed, including conduits, conductors and
manhole accessories, identifying manufacturer and type.
7. Such other shop drawings as indicated on the plans or as the Engineers may
require.
b. All drawings should be signed and dry sealed by the Contractor’s Registered
Professional Electrical Engineer.
c. All drawings, etc. shall be submitted sufficiently one month in advance of field
requirements to allow ample time for checking and no extension of the contract
time will be granted this contractor, by reason of his failure in this respect.
All submittals shall be complete and shall contain all
information.
J.1.7
required and detailed
Coordination
a. Coordinate timing of installation with work of other trades and with local utility company
Meralco, the local government of Taguig and BCDA
b. Systems provided shall be complete and operable, and shall include required
accessories, fastenings, and supports.
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Section VI
Technical Specifications
c. Determine required location, arrangement and quantities of equipment and materials
from drawings, schedules and specifications.
d. All equipment shall
recommendations.
be
installed
in
strict
accordance
with
manufacturer’s
e. Where certain items of equipment specified in other contracts require electrical
connections, the Contractor shall provide such connections as required.
J. 1.8
Minor Modifications
The plans as drawn are based upon architectural plans and details and show conditions
as accurately as it is possible to indicate them in scale. The plans are diagrammatical
and do not necessarily show all fittings, etc., necessary to fit the building conditions.
The locations of outlets, apparatus and equipment shown on the plans are approximate.
This contractor shall be responsible for the proper location in order to make them fit
with architectural details and instructions from Engineer’s representative at the site.
J. 1.9
Guarantee
a. This Electrical Contractor shall guarantee that the Electrical system is free from all
grounds and from all defective workmanship and materials and will remain so for a
period of one year from date of acceptance of the work. Any defects, appearing
within the aforesaid period, shall be remedied by this Contractor at his own
expense.
b. The Electrical Contractor shall indemnify and save harmless the Owner, the architect
and the engineers from and against all liability for damages arising from injuries or
disabilities to persons or damage to property occasioned by any fact or omissions
of the Contractor or any of his Sub-contractors, including any all expenses, legal or
otherwise which may be incurred by the Owner, the Architect or the Engineers, in
the defense of any claim, action or suit.
J.1.10 Approvals, Substitutions Etc.
Whenever hereinafter the words “for approval”, or “approved” (make, type, size,
arrangement, etc.) are used especially in regard to manufactured specialties, etc., or
wherever it is desired to substitute a different make or type of apparatus for that
specified, all information pertinent to the adequacy and adaptability of the proposed
apparatus, shall be submitted to the Engineers, and their approval secured before the
apparatus is ordered or installed.
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Section VI
Technical Specifications
J.1.11 Acceptance Tests
Field tests and adjustments as laid out in Section 16100 shall be performed prior to the
approval of work.
J.1.12 Subcontracts, Etc.
This Contractor shall be held fully responsible for the work of any Subcontractor or
manufacturer performing work for or supplying materials from, as it is intended that the
entire Electrical work, when finally delivered to the Owner, shall be ready in every
respect for satisfactory and efficient operation.
J.1.13 Workmanship
The work throughout shall be executed in the best and most thorough manner to the
satisfaction of the architect and the engineers, who will jointly interpret the meaning of
the drawings and specifications and shall have power to reject any work and materials
which in their judgment, are not in full accordance therewith.
This Contractor shall assume unit responsibility and shall provide the service of a
qualified Engineer to supervise the complete installation of equipment and systems and
who shall be available for conducting the final acceptance tests.
J.2
BASIC MATERIALS AND METHODS
J.2.1
General
a. Furnish and install all conduits and wires and miscellaneous materials required for wiring,
as specified herein and shown on drawings.
b. Perform tests and adjustments and submit reports as specified herein.
J.2.2
Polyvinylchloride (PVC) Conduit
a. General : standard trade sizes, heavy wall, manufactured to NEMA TC-2 type 40 - rated for
90 degree celcius cable. Atlanta, Crown Asia brands or approved equal.
b. Material : polyvinylchloride, extruded.
c. Nominal Size: 20 mm. dia. minimum.
d. Couplings and Fittings : standard joint by solvent weld process.
e. Uses:
1. Main feeder conduit connecting manhole to manhole.
2. Equipment feeder conduit connecting hand hole to lamppost.
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f.
J.2.3
Section VI
Technical Specifications
Pulling Hardwares : flat fish tape with ball and flexible leader or polyethylene or Manila
rope. Use of steel pulling cable not permitted.
Conduit Installation
a. General: install in accordance with applicable codes and recognized standards of good
practice.
b. Location: approximately as shown on drawings; actual routing subject to approval.
1. If parallel to the roadway – conduits shall be placed in 50mm sand bed before covering
it with earth.
2. If it shall traverse in roadways – conduits shall be concrete encased, see details on
section of concrete encasement.
c. Bends: not more than equivalent of three 90 degree bends between pulling points.
J2.4
Conductor
a. Material: copper, annealed.
b. Stranding: standard stranding for conductors 8.0 mm. sq. and above.
c. Minimum sizes: 3.5 mm for lighting wiring and power; 1,6 mm for control wiring.
d. Color Code:
1. Identified ground conductor: any shades of green or green with yellow stripes
2. Identified live conductor: Line 1 – Red, Line 2- Black, Line 3 -Blue
e. 600-Volt class conductors:
1. Insulation:
a. Feeders, 3.5 mm or larger: THWN insulation, Phelps Dodge, Columbia and
Amercian Wire.
b. Fixture wires: in accordance with the code.
J.2.5
Conductor Installation
a. Place all wiring, in raceway of type or types indicated. Provide all required and indicated
accessories for proper installation of all wiring.
b. Bending radii: not less than permitted by the code.
c. Supports in vertical runs: as prescribed by the code.
d. Splicing:
1. Permissible only in junction boxes or similar accessible locations. Number of supplies
held to absolute minimum.
2. Splicing of cables: in accordance with cable manufacturer’s recommendations.
3. Use solderless pressure type connectors whose screw does not bear directly on wire.
e. Insulation of splices or taps:
1. Three layers 20 mm wide 3M Company “Scotch No. 33” or “Scotch # 88” or approved
equal, electrical tape, half lapped.
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Section VI
Technical Specifications
2. Use filler compound, “Scotchfill,” or approved equal, at sharp edges to provide smooth
surface before taping.
f.
Wires and Small Cable pulling:
1. Reels: firmly mount on portable stand and secure against displacement.
2. Use pulling grips.
3. Lubrication: powdered soapstone or commercial wire lubricant; use of
solution not permitted.
soap and
g. Marking: mark ea. end of every power or control cable with a plastic tag securely fastened
to it bearing circuit use identification. Also mark cables in pull or junction boxes.
h. Connections:
1. Apparatus lugs: solderless pressure-type lugs thoroughly clean lug and conductor and
coat with suitable oxidation inhibiting compound prior to connection.
2. Terminal blocks: use retaining cup washers where solid wire is used. Use pressure
type terminal lugs where stranded wire is used.
NAMEPLATES
a. General : Provide and install nameplates wherever indicated as required in these
specifications. Wording shall be approved prior to purchase of nameplates.
b. Material : Red Bakelite engraving stock, white core.
c. Lettering: engraved, approximately 3/16” high. Wording shall identify function of device
to which nameplate is attached, or identify equipment served by device.
d. Installation (except for factory installed nameplates): attached with sheet metal screws
after painting of equipment is completed.
J.2.6.
Field Tests And Adjustments
a. Test reports: typewritten, listing equipment used, person or persons performing the tests,
date tested, circuits tested, and results of tests.
b. Insulation resistance tests, general:
1. Perform insulation resistance tests on equipment and cables listed herein.
2. Test equipment: furnished by Contractor; equal to “Megger” as manufactured by James
G. Biddle Company, motor-driven or rectifier type with ranges of 500, 1,000 and 2,500
volts d-c.
3. Resistance measured: line-to-ground and line to line.
4. Disconnect all solid state equipment before making wire or cable tests. Contractor is
responsible for damage to any such equipment caused by these tests.
c. Continuity test: test all socket outlet and control circuits to determine continuity of wiring
and connections. Submit written statement that this test has been performed.
d. Phase relationship:
1. Check connections to all equipment for proper phase relationship. Determine motor
rotation. Correct connections as required.
2. Disconnect, prior to check any device which could be damaged by application of
voltage of reversed phase sequence.
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Section VI
Technical Specifications
3. Test report: written statement that this check has been made.
e. Correction of defects:
1. If tests disclose any unsatisfactory workmanship, wiring or equipment furnished under
this Contract, Contractor shall repair or replace at his expense, such defects in an
approved manner.
2. If any wiring or equipment is damaged by tests, Contractor shall repair or replace, at
his expense, such wiring or equipment in an approved manner.
J.3
UNDERGROUND ELECTRICAL WORK
J.3.1
References
The publications listed below from a part of this specification to the extent referenced. The
publications are referred to in the text by the basic designation only.
AMERICAN NATIONAL STANDARDS INSTITUTE INC (ANSI)
ANSI C2
National Electric Safety Code
NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)
NEMA WC7 Cross linked Thermosetting Polyethylene insulated Wire and Cable for the
transmission and Distribution of Electric Energy
UNDERWRITER’S LABORATORIES INC. (UL)
UL 83
Thermoplastic Insulated Wires and Cables
UL 467 Grounding and Bonding Equipment
UL 514B
Fittings for Conduit
J.3.2
Submittals
Manufacturer’s Catalogue Data







Conduit
Cables
Tape
Connector and Terminals
Ground Rod
Grounding Conductor
Thermite welds
Field Test Reports


600 volt cable tests
Grounding electrodes and system tests
Identify ea. cable for 600-volt test. When testing grounding electrodes and systems identify ea.
electrode and system for ea. test.
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J.3.3
Section VI
Technical Specifications
Products
Materials and Equipment
a. Conduit
PVC material conforming to the specifications of the Bureau of Product Standards PNS
14:1983
b. Fittings
PVC material conforming to the specifications of the Bureau of Product Standards PNS
14:1983
c. Tape
UL 510, plastic insulating tape, capable of performing in a continuous temperature
environment of 80 degrees C.
d. Power Wire and Cable
As designated by American Wire Gauge (AWG). Insulated conductors shall bear the data
of manufacture imprinted on the wire insulation with other identification. Do not use wire
and cable manufactured more than 6 months before delivery to the job site. Provide
conductor identification within ea. closure where a tap, splice or termination is made.
e. 600 Volt Wires and Cables
Conductors within conduits and cable ducts shall be of Type THWN/THHN unless
otherwise indicated on the drawings.
f.
600 Volt Wire Connector and Terminals
UL 486A
g. Grounding and Bonding Equipment
UL 467
h. Manhole
Manhole shall be cast-in-place concrete of the size and details indicated in the drawings.
Non-traffic type shall be provided with steel cover conforming to AASHTO M 105 with
the size and dimension as indicated in the drawings.
i.
Drain pipes
Polyvinyl Chloride (PVC) ASTM D 1784
Execution
Installation
NFPA 70 and ANSI C2
a. Concrete
Concrete works shall conform to the requirements of DPWH Specifications
b. Earthwork
Excavation, backfilling shall conform to the requirements under “Excavation, Backfilling
and Compacting”
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Section VI
Technical Specifications
c. Underground Duct with Concrete Encasement
Construct underground duct lines of PVC conduits encased in concrete. The concrete
encasement surrounding the bank shall be rectangular in cross section and shall provide at
least 3 inches of concrete cover for ducts.
- Under paved areas, encase ducts in concrete. Extend the concrete encasement at
least 5 feet beyond the edges pf paved areas and roads. Where conduit runs under
existing roads, cut and patch the pavement as indicated.
- The top of the concrete encasement shall not be less than 24 inches below grade,
unless otherwise indicated.
d. Duct and conduit Placement
Duct lines shall have a continuous slope downward toward manholes and with a pitch of
not less than 3 inches in 100 feet. Except at conduit risers, accomplish changes in direction
of runs exceeding a total of 10 degrees, either vertical or horizontal, by long sweep bends
having a radius of curvature. Sweep bends may be made up of one or more curved or
straight sections or combinations thereof. Manufacture bends shall have a minimum radius
of 18 inches for use with conduits of less than 3 inches in diameter and a minimum radius
of 36 inches for ducts of 3 inches in diameter and larger.
e. Termination of Conduit
Terminate conduits in end-bells where duct lines enter manholes.
f.
Cable Pulling
Pull cables down grade with the feed-in point at the manhole. Use flexible cable feeds to
convey cables through manhole where space permits by training cables around the interior
to form one complete loop. Maintain minimum allowable bending radii in forming such
loops.
g. Cable Lubricants
Use lubricants that are specifically recommended by the cable manufacturer for assisting in
pulling jacketed cables. Cable lubricants shall be soapstone, graphite or talc for rubber or
plastic jacketed cables. Lubricant shall not be deleterious to the cable sheath, jacket or
outer coverings.
h. Cable Pulling Tensions
Tensions shall not exceed the maximum pulling tension recommended by the cable
manufacturer.
i.
Cable Terminating
Protect terminations of insulated lighting cables from accidental contact, deterioration of
coverings and moisture by providing terminating devices and materials.
Install
terminations of insulated cables in accordance with the manufacturer’s requirements. Make
terminations with materials and methods specified herein or as designated by the written
instructions of the cable manufacturer and termination kit manufacturer.
j.
Splices for 600 Volt Class Cables
Splice in underground systems is not allowed.
k. Grounding
Noncurrent carrying metallic parts associated with electrical equipment shall have a
maximum resistance to solid “earth” ground not exceeding 10 ohms, unless specified
otherwise by the Engineer.
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l.
Section VI
Technical Specifications
Grounding Connections by Exothermite Type Process
Make grounding connections, which are buried or otherwise normally inaccessible,
excepting specifically those connections for which access for periodic testing is required by
exothermite type process. Make thermite welds strictly in accordance with the weld
manufacturer’s written recommendations. Welds which have puffed up or which show
convex surfaces indicating improper cleaning are not acceptable. Mechanical connectors
are not required at thermite welds.
m. Grounding Conductors
Bare coil-drawn copper wire of the size indicated in the drawings.
J.3.5
Field Quality Control
As an exception to requirements that may be stated elsewhere in the contract, notify the
Engineer, 5 working days prior to the test.
Distribution Conductors 600 Volt Class
Test 600-volt class conductors to verify that no short circuits or accidental grounds exist. Make
tests using an instrument, which applies a voltage of approximately 500 volts to provide a
direct reading in resistance.
Ground Rods
Test ground rods for ground resistance value before connecting wires. Use a portable ground
testing megger to test ea. ground or group of grounds. The instrument shall be equipped with a
meter reading directly in ohms or fractions thereof to indicate the ground value of the ground
electrode under test. Provide one copy of the megger manufacturer’s directions for use of the
ground megger indicating the method to be used.
J.4
PANELBOARDS
J.4.1
General
Furnish and install panelboards as listed in the “Load Schedule”. Manufacturer’s shop
drawings, samples and catalogs shall be submitted for approval by the Engineer prior to
manufacture.
J.4.2
Types and Ratings
a. NEMA 3R type enclosure, free standing, circuit breaker protection, 230 V, 3 phase 3
wire, Cuttler Hammer, G.E. or Square D.
b. All panelboards shall contain a single brand of circuit breakers, manufactured by
G.E. , Cuttler Hammer, or Square D.
c. Breakers: “Bolt-on” type molded case, thermal magnetic protective, quick-make,
quick break, trip free from handle, trip indicating, number and size as shown in load
schedule. Internal common trip for 2 and 3 pole breakers.
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Technical Specifications
d. Breaker minimum interrupting capacities; based on NEMA and UL test procedures:
220 volt breakers: 10,000 rms symmetrical amperes
J.4.3
Quantity and Identification
As shown in Panelboard schedule. Where “space” is indicated in the schedule, this shall
mean that complete bus, insulators, etc., shall be included ready to accept future circuit
breakers.
J.4.4
Panel and Box
B.I. box, gauge 12 minimum, plain steel front, complete with hinged door, polished
metal catch and lock. All panels keyed alike. Powder coated glossy finish. Repair any
damage to finish in manner acceptable to Engineer. Panelboards shall be as Manufactured
by KC Industrial, Soy Mei, LJ Industrial and Asiaphil.
a. Free Standing type.
b. NEMA 3R type testing.
c. Nameplate: required ea. panel
J.4.5
Warranty
A warranty for a period of one (1) year shall be provided against failure of
components resulting from normal use and/or factory defects.
J.5
GROUNDING
J.5.1
General
Furnish all materials and labor required to ground motor controls, panelboards, transformer
nuetrals and cases, motor frames, conduit systems, and all other electrical equipment.
J.5.2
Materials
a. Ground rods:
1. Type: copper-clad
2. Size: 20 mm. x 3 m. detail as shown on drawings.
b. Ground wire and taps:
1. Material: stranded soft-drawn bare copper wire.
i. Main bare copper wire: 100mm sq. BCW
ii. Lamp post ground wire: 3.5 mm sq. BCW
c. Insulators and miscellaneous installation materials as shown on drawings.
J.5.3
Installation
a. Raceway grounding:
1. Ground all conduit systems: use double locknuts at panelboards; use bonding jumpers
if conduits are installed in concentric knockouts.
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Section VI
Technical Specifications
2. Parallel all flexible steel conduits with copper jumper, sized in accordance with the
Code. Securely fasten one end of jumper to rigid metallic conduit or connector, other
end to device served.
b. Equipment Grounding:
Ground all lamp post separately.
c. Use “Exothermic” process for all bonding connections to the grounding loop and as
indicated on drawings.
d. Ground Rods:
1. Locate ground rods at approximate locations shown.
2. Install in firm soil and drive top of rod to depth below grade as shown on the plans.
e. Ground resistance shall not be more than 5 ohms.
f.
J.5.4
Brand: Cadweld, Thermoweld, Furseweld or approved equal.
Tests
a. Ground rod-resistance test:
1. Test ea. ground rod by single-test. “Megger” method, in accordance with the code
requirement.
2. Test equipment: Furnished by Contractor, equal to “Megger”, by James G. Biddle
Company.
b. Test report: submit typewritten report, listing equipment used, person or persons
performing tests, date tested, circuit or equipment tested, and results of tests.
J.6
STREET LIGHTING SYSTEM
J.6.1
Description
This item shall consist of furnishing and installing the street lighting system as required by the
Plans and as described in this Specification. The work shall include the following:
a. Electrical services, including all conduits, junction boxes, and wiring from the
MERALCO supply and meter to the lighting and contactor panel boards, and light
poles with luminaries.
b. Lighting and contactor panels
c. Complete street luminaries
d. Steel poles and foundations
e. Photocontrols
f.
Grounding system for luminaries
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J.6.2
Section VI
Technical Specifications
Materials / Products
General Requirements
General
All materials and equipment to be used and to be installed hereunder shall be new and of the
approved type, bearing the stamp of approval of the Underwriters Laboratories, Inc. Fungus
Control. No substitute will be accepted, unless the materials and equipment specified herein are
not available. Locally manufactured and/or any other substitute materials and equipment may
be accepted, provided that they are better or the full equivalent in design, quality and size of
materials and workmanship, and provided further, that they carry the written approval of the
Engineer before they are installed.
All electrical equipment and materials, except otherwise specified, shall be treated to resist
moisture and fungus. Electrical components such as switches, breakers, fuses, contacts, and
heater elements shall not be treated. Other materials and components that are inherently fungusresistant or protected by hermetically sealing need not be treated. All other circuit elements that
have a temperature rise of not more than 24ºC when operating at full load shall be coated with a
fungus-resistant varnish. Circuit elements include but are not limited to cables, wires,
contactors, panels, terminals, and terminals junction blocks, capacitors and coils.
Corrosion Protection
Fasteners, hardwares, conduit clamps, bolts, nuts, washers and similar materials used for the
assembly of electrical equipment and for the support of conduit and equipment shall be either
of non-ferrous metal or coated steel.
J.6.3
Lighting Contractor Panel
Lighting Contractor Panel shall be designed and fabricated for pole mounting as indicated on
the Plans. Enclosures shall be fabricated in accordance with NEMA requirements and shall be
waterweight and dust tight stainless, suitable for outdoor installation and for 220 volts, 1-phase,
60 hertz application. The enclosure shall be cleaned and shop prime coated on all surfaces with
red lead primer. The interior and exterior of the cabinet shall be given two coats of the
manufacturer’s standard paint, which shall be light gray in color.
Circuit Breakers
The molded case circuit breakers shall be of the thermal-magnetic type having inverse-time
tripping characteristic on overload and instantaneous trip on short circuits, shall be equipped
with arch quenchers, shall have quick-make and quick-break toggle mechanism, and shall have
trip-free operating handles. Ea. multi-pole breaker shall have a common trip so that an overload
on one pole will automatically cause all poles of the breakers to open. The circuit breakers shall
have an interrupting rating of not less than 10,000 symmetrical amperes at 220 volts.
Solderless-type connectors shall be furnished on the loadside of breakers for conductor’s size
30 square mm and smaller.
Lighting Contractor
NEMA ICS 2, electrically held contractor rated as indicated. Provide as conforming to NEMA
ICS 6. Contractor shall have silver alloy double-break contacts and coil clearing contacts and
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shall require no arcing contacts. Provide contractor with hand-off automatic selector switch.
Contractor shall be hermetically sealed and shall be rated as specified in the Plans.
Terminal Blocks
Terminal blocks for wiring shall be rated at least 600 volts and 25 amperes for control and 50
amperes for power and shall be molded – block type to accommodate ring tugs, furnished with
biding head or washer – head screws having serrated or grooved contact surfaces, having
lockwashers and insulating barriers between terminals.
Each terminal blocks shall have removable cover and marking strip.
Arrangement and location of the block shall be such that incoming and outgoing cables can be
supported. Grommets shall be provided at all holes furnished for wires and cables. Adjacent
rows of terminal block shall be separated at least 150 mm edge to edge.
When wires are terminated at terminal blocks, circuit designation, as shown on the schematic
and wiring diagrams, shall be machine lettered, stamped, engraved, or neatly marked with
permanent ink on one side of the terminal block marking strips. One spare blank marking strip
shall be furnished with ea. terminal block. The terminal arrangement shall group the conductors
in ea. cable. Conductors shall be marked at ea. end with clip-on marking sleeves.
J.6.3
Street Lighting Poles
Poles
Provide steel poles designed for wind loading of 145 kilometers per hour determined in
accordance with AASHTO LTS-2 while supporting luminaires having effective projected areas
indicated. Poles shall be anchor-based type designed for use with underground supply
conductors.
Provide hot-dipped galvanized steel poles having minimum 8 mm-thick steel with minimum
yield strength of 227 MPa and iron oxide primed factory finished. Provide a pole grounding
connection designed to prevent electrolysis when used with copper ground wire.
Provide anchor bases with galvanized steel anchor bolts, threaded at the top end and bent 90
degrees at the bottom end. Provide galvanized nuts, washers and ornamental covers for anchor
bolts. Galvanizing shall be in accordance with the requirement of ASTM A120 for the poles
and A153 for the fittings.
Anchor Base Assemblies
Anchor bolts shall be steel rod having minimum yield strength of 345 MPa; the top 300 mm of
the bolt shall be galvanized per ASTM A153. Anchor bases for steel poles shall be structural
quality hot rolled carbon steel pole having minimum yield strength of 248 MPa.
High Pressure Sodium Street Lighting Luminaries
This specification covers requirements for horizontally mounted high-pressure sodium
luminaires used for street lighting on a 230-volt AC, 60-hertz system voltage. As referred to in
this specification, the word “luminaire” shall mean a complete lighting apparatus consisting of
the housing and all integral parts necessary for its mounting, optical assembly, control gears
and wiring assembly, but excluding the lamp.
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Standards
All luminaries furnished under this specification shall meet applicable design and testing
requirements of either ANSI/IES or IEC/CIE standards, except as maybe provided herein. If
other equivalent internationally accepted standards are used, these standards and other
supplementary standards, if applicable, shall be explicitly stated in the proposal.
Electrical Rating
The luminaire shall be designed to operate at 230 volts AC, 60 hertz, and single phase. The
standard wattage rating could either be for 70 watts, 150 watts, or 250 watts, whichever may be
specified/ shown in the drawings.
Design and Construction Features
Housing. The housing of the luminaire shall be made of heat-treated, die-cast aluminum alloy
and shall be painted with an electrocoat gray paint finish.
Hardwares such as hinges, latches, springs, nuts, screws, washers, pins, etc. shall be made of
materials compatible to the housing material and shall be inherently corrosion-proof or have
been protected by finishes approved for corrosion resistance. However, those exposed the
elements shall be made of high-grade stainless steel.
The luminaire shall be used for horizontal mounting on a mast arm. The mounting shall be
designed using a clamping plate with four (4) – 9.5 mm minimum diameter hexagonal head
clamping bolts to mechanically clamp the luminaire to a 1 ¼” (32mm) to 2” (50mm) nominal
diameter metal pipe end of the mast arm and adjust it to the required position. The mast arm is
designed to provide a 5-degree tilting angle to the luminaire. All clamps, hinges, and latches
shall withstand high vibrations and wind pressure of up to 26 psf.
A shoulder or stop shall be provided to limit the insertion of the pipe end of the mast arm
during installation. The open area surrounding the insertion shall be guarded against entry of
birds or other wildlife.
The luminaire housing shall be as a nameplate or other type of indelible marking that shall
identify it as to type, rating, manufacturer, catalog number, etc.
A wattage marking in accordance with ANSI C136.15, latest revision, shall be provided on the
underside of housing using black-colored numerals 50.8 mm. (2 in.) minimum height with
gold-colored square background 76.2 mm (3 in.) minimum dimensions of the side. The
marking shall be visible from an observer on the ground and shall be designed to endure the life
of the luminaire.
The luminaire housing shall be provided with a receptacle for three-prong, twist-lock type
photocontrol, unless otherwise specified.
The luminaire surfaces, joints and rim shall be smooth and free of bur’s and sharp edges that
could cause injury to the workman.
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Optical Assembly
The reflector shall be made from approved material and shall be capable of efficiently directing
the light in the required directions while reducing it in directions where it might cause glare
discomfort.
The refractor shall be prismatic type made from heat/impact-resistant glass. It shall be held in
place in such a manner as to allow for its expansion and contraction.
The design of the optical system shall be based on the use of a clear, ovoid/elliptical lamp.
The lamp socket shall be designed for high-pressure sodium lamp with E27/27 base for 70Watt or E40/45 base for 150-Watt and 250-Watt applications. It shall be of 600-Volt
classification, made from glazed porcelain with one-piece rolled threads and stationary socket
lead connectors that will not move during lamp insertion and removal. The screw shall be
constructed of nickel-plated material. The center contact inside the socket shall be springloaded to provide lamp-gripping action.
The refractor-housing and socket-reflector junctions shall be adequately sealed or gasketted
against entry of moisture, rainwater, dust and insects, with provisions for thermal breathing and
air filtering.
The luminaire light distribution shall be IES Type III, medium distribution, semi-cutoff
classification or equivalent, unless otherwise specified. The manufacturer shall submit
photometric data consisting of the isolux and isocandela diagrams showing the projection of
maximum candle power and half-maximum isocandela trace on the roadway for various
mounting heights (i.e., 6, 7, 8, 9, 10 and 12 meters), utilization data, and the luminaire
distribution of luminous intensity at intervals of 1.5 degrees and 4.5 degrees vertical and lateral
angles, respectively.
Control Gears and Wiring
The ballast shall be high power factor (PF  90 %), reactor type. The manufacturer shall
determine the correct rating of the capacitor to be installed to achieve the desired power factor.
The ballast shall be designed to have an expected average life of 10 years (minimum) under the
condition of a maximum permissible winding temperature of 130ºC.
The ballast shall be designed to operate high sodium vapor lamps with the following ratings
whichever may be specified.
Lamp Wattage
(Watts)
70
Nominal Lamp
Voltage(Volts)
90
Nominal Lamp Current
(Amperes)
1.0
150
100
1.8
250
100
3.0
The ballast shall be corrosion and moisture-resistant and shall satisfy the design and testing
requirements of either ANSI or IEC standard, latest revision.
All ballast shall be complete with electrically matched starter/ignitor component.
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The starter/ignitor component shall be a solid-state device capable of withstanding an ambient
temperature of 100ºC. It shall provide timed pulsing with sufficient follow through current to
completely ionize and start all lamps that meet published ANSI or IEC standards. The
starter/ignitor circuit board shall be treated in an approved manner to provide moisture resistant
coating.
The ballast, starter/ignitor, and capacitor shall be field replaceable with no adjustment
necessary for proper operation. They shall have push-on type electrical terminations to provide
good electrical and mechanical integrity and ease of replacement.
The starting circuit-ballast combination shall be designed to consistently provide the following
parameters:
a) Lamp wattage must be maintained with the trapezoid recommended by lamp
manufacturers within the full rated input voltage range.
b) Pulse characteristics shall conform to ANSI or IEC specifications.
The ballast, starter/ignitor and capacitor shall ea. bear a nameplate or other type of indelible
marking complete with information the same as those specified for the luminaire housing.
The photocontrol receptacle, when provided, shall conform to ANSI C136.10, latest revision or
equivalent.
All components shall be securely fastened to the housing gear compartments and completely
pre-wired using a terminal block a wiring diagram shall be provided, legible and permanently
affixed inside the luminaire. The diagram shall indicate the ballast, capacitor, lamp socket,
photocontrol receptacle, starter/ignition circuit, and coded terminal block connections.
All circuitry wirings shall be insulated to a minimum temperature rating of 125ºC. Wire
connections shall be made with quick connect push-on brass terminal block by means of screwon type connections.
Tests and Inspections
All tests on the luminaire and its components shall be performed in accordance with applicable
testing procedures and acceptance criteria of either ANSI or IEC standard, latest revision.
Certified test reports for all types of test conducted shall be submitted prior to shipment of the
luminaries.
The Engineer reserves the right to conduct an acceptance testing to ensure that the
manufacturer/supplier complies with the specification. Any item found not to be in writing by
the Engineer should be rejected and replaced at no extra cost to the Employer. Inspection by the
Engineer does not relieve the manufacturers/supplier from complying with the specification or
release him from warranty.
BCDA Approval Prior to Delivery
Prior to the delivery, the following information regarding the offered luminaire shall be
submitted for approval of BCDA:
a) Complete description.
b) Preliminary dimensional drawings and design specification of each component.
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c) Technical bulletins and descriptive literatures concerning the offered luminaire.
d) Copies of reference standards used in manufacturing and testing (e.g. ANSI or IEC).
e) Photometric data consisting of the isolux and isocandela diagrams, utilization data, and
the luminaire distribution of luminous intensity at intervals of 15 degrees and 4.5
degrees vertical and lateral angles, respectively, as specified.
f) Ballast characteristic curve.
g) Specific lamp types/brands recommended for use in the offered luminaire.
h) Packaging and transportation details.
i) Certification to the effect that the manufacturer/supplier has already manufactured and
sold a maximum of (state quantity) luminaires being offered with satisfactory
performance record.
j) List of previous purchases of luminaires offered including addresses and quantities
ordered.
k) Copy of certified test reports of similar luminaires supplied to previous purchasers.
l) Extent of manufacturing facilities and quality control procedures.
High Pressure Sodium Lamps
This specification covers requirements for high-pressure sodium lamps used for street lighting
on a 230-Volt AC, 60-Hertz system voltage.
Standards
All lamps furnished under this specification shall meet applicable design and testing
requirements of either ANSI or IEC standard, except as may be provided herein. If other
equivalent internationally accepted standards are used, these standards and other supplementary
standards, if applicable shall be explicitly stated in the proposal.
Electrical Rating
Lamps shall be designed based on the following nominal ratings:
70
Nominal Lamp
Voltage
(Volts)
90
Nominal Lamp
Current
(Amperes)
1.0
Mean Lumen
Output
(Lumens, min.)
5400
150
100
1.8
13500
250
100
3.0
24750
Lamp Wattage
(Watts)
The required lamp rating shall be specified in the Inquiry or Purchase Order.
Design and Construction Features
a) Lamp shall have clear, ovoid/elliptical glass envelopes.
b) Lamp dimensions shall conform to the requirements of either ANSI or IEC standard, latest
version.
c) Screw caps (bases) shall be E27/27 for 70-Watt and E40/45 for 150-Watt and 250-Watt
high-pressure sodium lamps.
d) All lamps shall be extremely ignited and designated to operate in a universal burning
position.
i. Mark of origin in the form of trademark of the manufacturer’s mark.
ii. Rated wattage and voltage.
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Tests and Inspection
All tests on lamps shall be performed in accordance with applicable procedures and acceptance
criteria of either ANSI or IEC standard, latest revision. Certified test reports for all types of test.
conducted shall be submitted prior to shipment of the lamps.
The Engineer reserves the right to conduct an acceptance testing to ensure that the
manufacturer/supplier complies with the specification. Any item found not be in accordance
with the specification, unless otherwise approved in writing by the Engineer shall be rejected
and replaced at no extra cost to the Employer. Inspection by the Engineer does not relieve the
manufacturer/supplier from complying with the specification or release him from the warranty.
Bid Data
The following information regarding the offered lamp shall be submitted with or stated in the
proposal:
a. Complete description.
b. Preliminary dimensional drawings and design specification of the offered lamp.
c. Technical bulletins and descriptive literatures concerning the offered lamp.
d. Copies of reference standard used in manufacturing and testing (e.g. ANSI or IEC)
e. Lamp’s operating (voltage-wattage) trapezoid.
f. Lamp’s spectral distribution curve of chromaticity coordinates/color triangle.
g. List of specific types of luminaries of other known brands where offered lamp is
compatible.
h. Packaging and transportation details.
i.
Certification to the effect that the manufacturer/supplier has already manufactured and sold
a maximum number of (state quantity) lamps being offered with satisfactory performance
record.
j.
List of previous purchasers of lamps offered including addresses and quantities ordered.
k. Copies of certified test reports of similar lamps supplied to previous purchasers.
l.
Extent of manufacturing facilities and quality control procedures.
Undercarriage Luminaires
Luminaries under the overpass structures shall be surface mounted 250-Watt high-pressure
sodium fixture. The housing shall be aluminum and with low brightness refractor. The
luminaires shall be similar to low mount General Electric Tunnel Guard 250. The ballast shall
be high power factor type.
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Photocontrols
This specification covers requirements for photocontrols rated 240-Volt AC, 60 Hertz used
primarily for switching high-pressure sodium vapor lamps in street lighting application.
Standards
Unless otherwise specified, all photocontrols furnished under this specification shall meet the
design and testing requirements of the latest applicable ANSI standards. If equivalent
internationally accepted standards are used, these standards and other supplementary standards,
if applicable, shall be explicably stated in the proposal.
Service Conditions
Physical Conditions. The photocontrols shall provide reliable switching of high-pressure
sodium vapor lamps under the following environmental conditions:
Ambient Temp. Range
Moisture Level
Specific Corrosive
Contaminants at Site
-
10ºC to 50ºC
90% Relative Humidity @ 40ºC
salt water, excessive
dust, fume and/or soot
Operating Conditions. The photocontrol shall turn on at a nominal light level setting of 10.76
lux (1.0 footcandle), which is within the limits of 5.38 to 21.52 lux (0.5 to 2.0 footcandles) at
rated voltage of 240 Volts, AC, and 60 Hertz. It shall be adaptable for calibration up to 107.64
lux (10 footcandles).
The ratio of the turn-off to the turn-on light level shall not exceed 5.
The photocontrol shall be designed with a fail-on failure mode.
Electrical Features
Rated Voltage. The photocontrol shall be rated at 240 Volts AC, 60 Hertz.
Rated Load. The photocontrol shall have a minimum load rating of both 1000-Watts
incandescent lamp load and 1800 Volt-Amperes load. The volt-ampere load consists of lamp
wattage, ballast losses, and reactive volt-amperes, and may be at a power factor as low as 0.5.
Dielectric Withstand. The electric insulation of the photocontrol shall withstand for one minute
a 60-Hertz. Dielectric Withstand Test of 2.5 kV ms minimum (dry) between current-carrying
components and any metallic portion of the enclosure or accepted or receptacle with its
mounting.
Surge Protection. The photocontrol shall be provided with an MOV arrester capable of at least
160 Joules energy dissipation and a clamping voltage of not greater than 1000 Volts.
Power Consumption. The power consumption of the photocontrol shall not exceed 3 VA at
either daytime or nighttime operation.
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Construction Features
General Conditions. The photocontrol shall be mechanically robust to withstand reasonable
abuses of handling and shall be designed and constructed to minimize the effects of moisture in
the atmosphere.
The photocontrol shall be designed as follows:
a. The photocontrol skirt shall have a minimum diameter of 76.4 mm (3 inches).
b. Any condensation falling on it will be led away from the terminals.
c. There are no cavities on the exterior where moisture can collect.
The three-terminal locking type plug of the photocontrol shall be inaccordance with ANSI
C136.10. It shall fit correctly and snugly into its corresponding ANSI C136.10 twist-lock type
receptacle.
Housing and Sealing. The housing shall be made of high impact strength and flame retardant
material preferably fastened to its base by screws.
The housing shall be sealed tight, preventing penetration of moisture, dust, and other
contaminants inside the photocontrol.
The light source window for the photocell shall be of a clear, UV-stabilized acrylic material
designed for maximum protection against weather and life shortening effects of direct sunrays.
A compressible gasket or sealing means shall be provided as part of the photocontrol to form a
weatherproof seal on the “required seat” of the receptacle.
All non current carrying metal parts shall be protected from corrosion.
Photocell. The cadmium sulfide shall be hermitically sealed. It shall be encased in an enclosure
with an internal cavity that absolutely prohibits the passage of moisture, air, gas, and
contaminants through its envelope.
Hermeticity of the photocell sealing shall be determined by Method C of ASTM F98-72
(Standard Recommended Practices for Determining Hermeticity of Electron Devices by a
Bubble Test) or equivalent standard of testing hermeticity of electron devices.
The following types of photocell are not recognized equivalent to the required hermetically
sealed photocell:
a. Chemically sealed.
b. Surface passivated.
c. Laminated, coated, or dipped with polyurethane, epoxy resin or any other type of
plastics.
Switching Device. The photocontrol shall be equipped with an electromagnetic relay as a means
of switching the load.
The relay contacts shall be sufficient current capacity and shall make an break its load by a
snap action.
The relay contacts shall have a low contact resistance to prevent heating.
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Current-carrying Components. All current-carrying metal parts shall be of good conductor
quality and shall be corrosion resistant.
Teminals. The three-terminal locking type plug of the photocontrol shall be rigidly connected to
the base without possibility of being displaced from the base.
Terminals necessary for installation shall be readily accessible and clearly identified.
Tests and Inspection
Sampling
a. The Engineer shall conduct test and visual inspection on delivery samples picked at
random from a lot. Sample size shall depend upon the quatity delivered.
b. For new model/brand submitted by the supplier/manufacturer for acceptable or
accreditation, at least six (6) samples shall be required.
Test Environment. Ambient condition during response testing shall be at a temperature of 25ºC
+ 5ºC and relative humidity at 70% + 10%.
Sequence of Test. Test shall be performed in the order presented below:
a.
b.
c.
d.
e.
f.
Drop Test
Operating Characteristic Test
Impulse Withstand Test
Dielectric Withstand Test
Operating Characteristic Test (after impulse withstand test)
Power Consumption Test
“Aging test” shall be added to the above test sequence for accepting or accrediting a new
model/brand.
Rejection. In case of sample failure in any of the test sequences, no further test shall be
conducted.
Inspection. The Engineer reserves the right to inspect all phases in the manufacture of these
photocontrols and to witness the tests to be done to ensure that the manufacturer/supplier
complies with the specification. Any item found no to be in accordance with the specification
will be rejected and replaced with an acceptable item at not extra cost to the Employer.
Inspection by the Engineer does not relieve the manufacturer/supplier from complying with the
specification or release him from warranty.
Drop Test. The photocontrol must be capable of withstanding a one (1) meter drop to a concrete
floor without damage to the housing or changing its operating characteristics.
Operating Characteristic Test. The photocontrol shall meet the light level requirements for
supply voltages of 210 V, 240 V, and 260 V operated for 5 minutes.
Impulse Withstand Test (Surge Test). The open-circuit surge voltage shall have 6000-Volt peak
amplitude and a 1.2 microsecond x 50-microsecond waveshape. The short-circuit surge current
shall have 3000-Ampere peak amplitude and an 8-microsecond x 20 microsecong waveshape.
The maximum available follow current shall be 1000 Amperes rms.
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The photocontrol shall be inserted into the test receptacle and shall be placed in darkness. Three
(3) surges shall be applied between the line and neutral terminal in the photocontrol. These
three (3) surges shall be repeated with the photocontrol illuminated to a minimum of 322.9 lux
(30 footcandles). The minimum time between surges shall be 15 minutes.
60-Hz Dielectric Withstand Test. A voltage of 2.5 kV rms shall be applied for 1 minute (dry)
between all current-carrying metal parts joined and any metallic portion of the control-device
enclosure or receptacle with its mounting. The electrical insulation shall not be damaged.
Power Consumption Test. The power consumption of the photocontrol shall be based on the
wattmeter readings at rated 240 Volts AC for full daylight and full darkness operation. Average
yearly consumption shall be computed from the wattmeter readings based on a twelve (12)
hours “ON” and twelve (12) hours “OFF” operation.
Aging Test. A new set of three (3) or more photocontrol samples shall be installed outdoor and
energized for a period of six (6) months. The photocontrol should not fail to turn-on and turnoff its load during the six (6) month period. The photocontrol should not show any sign of
corrosion on any metallic portion, and the cover’s discoloration should be minimal.
Bid Data
The following information with regard to the offered photocontrol shall be submitted with or
stated in the proposal:
a.
b.
c.
d.
e.
f.
g.
Complete description
Electrical and Mechanical Specification
Schematic and Wiring diagram
Description and detailed drawings of photocell
MOV arrester’s joule rating and clamping voltage
Turn-on illumination level range.
Dimensional drawings with the numerical data furnished in the meter-kilogram-second
(metric) system of measurement and the equivalent in foot-pound-second (English)
system indicated in parenthesis.
h. Technical bulletins and descriptive literatures concerning the offered photocontrol.
i. Copies of manufacturing
j. Packaging and transportation details
Conduit
Rigid Steel Conduit. Rigid steel conduits shall be galvanized and shall conform to ANSI
Standard C-80. Fittings of types approved by the Engineer shall be provided as required for
connection to junction, to pull and outlet boxes, and to equipment.
PVC. Plastic duct for concrete encased burial shall be PVC and shall conform to NEMA TC6
type. EB Fittings shall conform to NEMA TC9.
Outlet Bodies
Outlet bodies for pull boxes, and convenience outlets shall be cast or malleable iron for
exposed locations and stamped galvanized steel where embedded in concrete.
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Insulated Conductors
Conductors in raceways shall be of copper with moisture and heat-resistant rubber or
thermoplastic insulation. Wires and cables shall be type THW nylon jacket for all wires. All
types shall be PSA approved and shall conform to NEMA Standard Rubber Insulated.
Wire and Cable for the Transmission and Distribution of Electrical Energy. Phelps Dodge
brand or approved equal shall be used.
Grounding Installation
All street lighting poles and panel boards shall be effectively grounded. Conductor and ground
wires shall be bare copper as shown and sizes as indicated on the Plans. All connections shall
be mechanically and electrically sound and secured by insulating tape of approved type.
Grounding wire shall be made of bare copper strand; soft drawn wire shall be installed in one
continuous length without splices or joints. Ground rods shall be made of copper-clad steel and
shall be driven full length into the earth, sizes of which shall be as indicated on the Plans for
grounding details.
Light Pole Concrete Footings
All electrical light poles shall be of reinforced concrete with dimensions as indicated on the
Plans. Concrete shall be Class A and together with the reinforcing steel shall conform to the
requirements of the DPWH Standard Specifications.
CONSTRUCTION METHODS
Codes and Regulations
All works shall be done in accordance with the requirements of the latest edition of the
PHILIPPINE ELECTRICAL CODE and the NATIONAL SAFETY CODE, with the applicable
ordinances of the local government, and with the requirements of the local power company that
will eventually furnish the service. Nothing contained herein or shown on the Plans shall be
constructed as to conflict with the requirements of these codes, which are hereby made part of
the work of this item.
Contractor’s Submittals
The Contractor shall be required to submit shop drawings which shall include outline
dimensions, mounting connections and clearances, ratings, elementary wiring diagrams,
together with catalogs and descriptive data for the following:
a.
b.
c.
d.
Lighting and control panels
Streetlights, including light poles, mast arms to light poles
Photocontrols
Manufacturer’s Data. When data that describes more the one type, size, model, or item
is submitted, clearly mark the data to indicate which type, size, model, or item is being
provided.
i. Luminaires
ii. Poles and Brackets
iii. Photocontrols
iv. Lighting Contractors and Relays
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Data shall be sufficient to show conformance to specified requirements.
e. Shop Drawings
Luminaires. Include dimensions, accessories and installation and construction details.
Photometric data, including Zonal lumen data, average and minimum ratio aiming diagram and
computerized candlepower distribution data shall accompany shop drawings.
Poles. Include dimensions, wind load determined in accordance with AASHTO LTS-1, pole
deflection, pole class, and other applicable information, including pole design calculations.
f.
Certified Test Reports:
Luminaires
1. Computerized horizontal illumination levels in footcandles or Lux at ground level,
taken every 3 meters. Include average maintained footcandle level and maximum ratio.
2. distribution data according to IES classification type of M-S-III as defined in IES
Lighting Handbook. Luminaires not conforming to this standard are not acceptable.
Test and Guarantee
When the installation is reported as completed and ready for acceptance, tests as directed shall
be made by the Contractor, at his own expense, in the presence of the Engineer.
The Contractor shall at once remedy all defects and any part of the work not satisfactory to the
Engineer, free of cost to the Employer.
The Contractor shall supply all apparatus, materials, and labor required for making the tests.
The Contractor shall furnish a guarantee covering all labor and materials for a period of one
year from the date of final acceptance of his work. He shall agree to repair and make good at
his expense any and all defects that may develop during that time, if in the opinion of the
Owner such defects shall arise from detective workmanship or materials.
Service Entrance
The service entrance posts, the control panels and the concrete foundations shall be constructed
as shown in the Plans or as required by MERALCO, and as directed by the Electrical Engineer.
The rigid steel conduit with THW conductors shall run down the utility line and into the box.
Electrical components shall be mounted to the back panels or control panels with machine
screws and wires as shown on the Plans or directed. Forms for the footings shall not be
removed until the concrete has hardened properly and not less than 24 hours after the concrete
has been placed.
Installations
Lighting Control Panels. The Contractor shall install the panel boards at the locations indicated
on the Plans. Electrical components shall be installed in the enclosures in proper position and
shall be completely wired and ready for operation. All power and control wires and cables shall
enter the control equipment enclosure through conduits.
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Conduits. Electrical conduits and fittings shall be installed in their correct positions and
locations as shown on the Plans. Conduit and fittings to be embedded in concrete shall be held
securely in position while the concrete is being placed. All threaded conduit connections shall
be painted with red lead-sealing compound or glyptical varnish.
All conduit bends shall be of standard radii bent without heating and shall be free form kinks,
indentions, or other deformations that reduce the cross-sectional area. Burrs and sharp edges at
the end of ea. piece of conduit shall be removed with a tape reamer. Bushings shall be installed
on the ends of the conduits at boxes of cabinets to protect conductors from abrasion, and lock
nuts and bond nuts shall be installed to provide tight-grounded connections between conduits
and boxes.
Conduits emerging from concrete surfaces shall be terminated with conduit couplings and pipe
plugs.
During construction, ends of conduits shall be plugged at all outlets, or boxes, to keep the
conduits dry and to prevent the entrance of foreign matter into the conduits.
Locknuts and bondnuts shall be installed to provide tight ground connections between conduits
and boxes, control board and cabinets. The end of conduits terminating at cabinets, control
boards or outdoor boxes shall be sealed with an approved sealing material to prevent air
circulation from the conduit into the cabinet and control board boxes.
Conduit Under Roadway. Installation shall be such as to avoid pocket in the conduit run. All
run shall be straight as possible and shall be installed in a neat and workmanlike manner.
Conduits under roadway shall be encased in reinforced concrete.
Electrical Conductors and Grounding. Electrical conductors and ground wires shall be
furnished and installed by the Contractor. All insulating tape and compounds, solder, flux and
connectors for making grounding connections shall be made with approved type solderless
connectors, and all connections shall be mechanically and electrically tight and secure. The
Contractor shall furnish all grounding connectors.
The Contractor shall install electrical conductors and shall make all required connections as
shown on wiring diagrams to be furnished or as directed by the Engineer. The conductors shall
be installed such that there will be no cuts or abrasions in the insulations or protective covering
of the conductor. No splices shall be made in conductors, except at boxes, outlets or cabinets.
J.7
MEASUREMENT AND BASIS OF PAYMENT
The following items will be measured and paid, which price and payment shall be full
compensation for furnishing and placing all materials and for all labor, equipment, tools and
incidentals to complete these items.
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Payment will be made under:
Item No.
Description/Particulars
Unit of
Measurement
A. STREET LIGHTING SYSTEM
900
Street Lighting and Fixtures
900(1)
Street Lighting and Fixtures, Type A1-B
ea.
900(2)
Street Lighting and Fixtures, Type B2-B
ea.
900(3)
Street Lighting and Fixtures, Type C1-B
ea.
900(4)
Street Lighting and Fixtures, Type C1-C
ea.
901
Conduits and Fittings
901(1)a
- 50mmØ PVC Pipe (including Concrete Spacer, Excav. & Backfill)
m.
901(2)a
- 50mmØ PVC Coupling
ea.
901(3)a
- 50mmØ PVC End Bell
ea.
901(4)a
- 50mmØ PVC Adaptor
ea.
901(5)a
- 50mmØ PVC Elbow
ea.
901(6)a
- 50mmØ Locknut and Bushing
ea.
902
902(1)
903
903(1)
904
Copper Ground Rod
- 20mmØ x 3000mm Ground Rod
ea.
PVC Drain Pipe
PVC Drain Pipe, 50mmØ PVC, 2.0m. Depth
m.
Pole Foundation
904(1)
Pole Foundation, Type A1-B
ea.
904(2)
Pole Foundation, Type B2-B
ea.
904(3)
Pole Foundation, Type C1-B
ea.
904(4)
Pole Foundation, Type C1-C
ea.
905
Concrete Handhole (including Frame and Cover)
ea.
906
Wires and Cables
906(1)a
- 3.5mm² TW
m.
906(1)b
- 8.0mm² TW
m.
906(2)a
- 3.5mm² THHN
m.
906(2)b
- 8.0mm² THHN
m.
906(2)c
- 50.0mm² THHN
m.
906(3)a
- 3.5mm² THW
m.
906(3)b
- 50.0mm² THW
m.
906(6)
- 100.0mm² Bare Copper Wire (BCW)
m.
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Item No.
Description/Particulars
907(1)
Thermoweld Connector
907(2)
75mm Warning Tape
Section VI
Technical Specifications
Unit of
Measurement
ea.
roll
C. UNDERGROUND POWER (34.5KV)
901
901(1)c
- 110mmØ PVC Pipe (including Concrete Spacer, Excav. and Backfill)
m.
901(2)c
- 110mmØ PVC Coupling
ea.
901(3)c
- 110mmØ PVC End Bell
ea.
901(7)c
- 110mmØ PVC End Caps
ea.
902(1)
20mmØ x 300mm Ground Rod
ea.
907(1)
Thermoweld Connector
ea.
907(2)
750mm Warning Tape
Roll
908(1)
3-Way Manhole (Incl. Frame, Cover, Excav. and Backfill)
ea.
908(2)
4-Way Manhole (Incl. Frame, Cover, Excav. and Backfill)
ea.
908(3)
Switch Gear Manhole (Incl. Frame, Cover, Excav. and Backfill)
ea.
908(4)
Pump Manhole (Incl. Frame, Cover, Excav. and Backfill)
ea.
909
J.8
Conduits and Fittings
Concrete Encasement for Ducts
cu. m.
OUTSIDE ELECTRICAL DISTRIBUTION SYSTEM (34.5KV LINE)
The work under this Section shall be subject to the requirements of the General
Conditions which shall be included as part of this Specification and which shall apply
all work performed for the construction of underground distribution facilities. This
section is intended to provide a broad outline of all the required facilities but are not
intended to include all details of the design and construction.
J.8.1 General Conditions
The construction of overhead and underground distribution facilities shall meet the
requirement of the National Electrical Safety Code, The National Electrical Code and
the Philippine Electrical Code. It must conform also the existing rules and regulations
of the local power company as well as of the locality concerned. Local Authorities
having jurisdiction should be consulted prior to the construction.
The work under this Section shall furnish all the skilled manpower, laborers,
engineering supervision, approved standard materials/supplies, proper tools and
equipment required to complete this project as specified in the approved drawing plans
duly signed by the Professional Electrical Engineer.
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J.8.2 Work Included
Under this section of the Specifications, provide all materials and equipment and
perform all the work necessary for the complete execution of all the electrical work as
shown on the electrical drawings as herein specified except as otherwise excluded, and
which without excluding the generality of the foregoing, shall include but not limited to
the following principal items of work:
1.
2.
3.
Furnish and install a raceway system for the underground power distribution
system including concrete pedestal, concrete manholes or handholes and
necessary wiring gutters and boxes.
Furnish and install a complete wiring, complete lighting fixtures as per required
and raceway system for the street lighting system including necessary wiring
gutters and boxes.
Furnish and install all street lighting panelboard, main air circuit breakers,
branch air circuit breakers in individual enclosures and disconnect switches.
4.
Furnish and install a complete grounding system.
5.
Perform terminations for all electrical systems.
6.
Complete testing of all electrical systems.
7.
Furnish and install safety sign boards in electrical equipment and panels for
proper information.
8.
Painting and/or retouching of electrical equipment or device enclosures.
9.
Application of electric power service connections including preparation of all
necessary plans, forms and related documents, payment of government fees and
charges and coordination with power companies and other authorities or persons
involved in the procedure.
10.
Preparation of “As-Built” plan.
11.
If any item of work or material has been omitted which are necessary for the
completion of the Electrical Work as outlined herein before, then such items
shall be and hereby included in this section of work.
J.8.3 Work Under Other Trades
The following principal items of work will be supplied under the other sections of this
specifications. Respective works to be done and specific materials to be supplied
and/or installed by other trades.
1.
Furnishing and/or installation of other electrical equipment and related
accessories specifically stated on the plans or other section of this specifications
to be furnished and installed by other trades.
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J.8.4 Codes, Inspections, Permits and Fees
1.
2.
The work under this Contract shall be in accordance with he provisions of the
latest edition of the Philippine Electrical Code, the rules and regulations of the
local authorities and the requirements of the local power company. Nothing
contained in these Specifications or shown on the Drawings shall be construed
as to conflict with National and Local Ordinances or Laws governing the
installation of electrical works, and all such laws and ordinances are hereby
made part of these Specifications. The Contractor shall comply with the
requirement thereof.
All permits and electrical fees required for this work shall be obtained by and at
the expense of the Contractor. The Contractor shall furnish Owner the final
certificates of electrical inspection and approval from the proper government
authorities after completion of the work. The Contractor shall prepare all asbuilt drawings and all forms documents required by the approving authorities.
J.8.5 Record Drawings
The contractor shall, during the progress of the work, keep a careful record of all
changes were the actual installation differs from that shown on the Contract Drawings.
Upon completion, the Contractor shall, in a neat and accurate manner, finalize “AsBuilt” Drawings on the tracing paper. These Drawings shall be submitted to the
Owner/Engineer for notation.
J.8.6 Shop Drawings and Samples
1.
Prepare and submit shop drawings cuts of all equipment, and copies of fixtures
furnished. After final approval by the Owner/Engineer, a sufficient number of
copies as directed shall be furnished for distribution. Fixtures and device cuts
and/or catalogues shall be clearly marked to indicate the items furnished.
2.
Submit to the Owner/Engineer for approval samples of conduits, wires, wiring
devices, fixtures, plates and any other items as may be required by the
Owner/Engineer.
J.8.7 Coordination
The Contractor shall prepare such detailed drawings of the equipment of shelves,
inserts and support locations as may be required for coordination of all phases of work.
Upon demand, the Contractor shall furnish these drawings in adequate number for the
information of all parties concerned, and shall coordinate the preparation of these
drawings by consultation with said concerned parties before submitting them. The
approval of such Drawings will not relieve the Contractor in any way from the
responsibility of properly location and coordination his work.
J.8.8 Minor Modification
The Drawings as drawn are based upon the development plans and details and show
conditions are accurately as it is possible to indicate them in scale. The plans are
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diagrammatical and do not necessarily show all fittings. The location of apparatus and
fixtures shown on them are approximate. The Contractor shall be responsible for the
proper location in order to make them fir with architectural details and instructions
from the Owner/Engineer at the site.
J.8.9 Subcontractors
The Contractor shall be fully responsible for the work of any subcontractor or
manufacturer performing work of supplying materials and ascertain that the Electrical
Work, when finally delivered to the Owner, shall be ready in every respect for
satisfactorily efficient operation.
J.8.10 Guarantees
The Contractor shall guarantee that the electrical systems are free from all grounds and
from all defective workmanship and materials and will remain so for a period of one (1)
year from the date of acceptance of the work. Any defects appearing within the
aforesaid period, shall be remedied by the Contractor at his own expense.
J.8.11 Approval, Substitution, Etc.
1.
Wherever, hereinafter, the words “for approval” “approved” or “equal” are
used, especially in regard to manufacture specialties, etc. or wherever it is
desired to substitute a different make or type of apparatus for the specified, all
information pertinent to the adequacy and adaptability of the proposed
apparatus, shall be submitted to the Owner/Engineer, and their approval be
secured before the apparatus is ordered or installed.
2.
Expenses incurred for tests required by the Owner/Engineer to ascertain the
equivalence of substitutes to specified materials or equipment shall be for the
account of the Contractor without prejudice to their approval or disapproval.
J.8.12 Workmanship
1.
The work throughout shall be executed in the best and most thorough manner.
The Owner/Engineer shall have the authority to reject any work and materials
which in their judgement, are not in full accordance or disapproval.
2.
The Contractor shall have on file, for ready access and reference, a set of
drawing indicating all work as actually installed incorporating in same all
changes and additions. Upon the termination of the Contract, the Contractor
shall prepare a set of tracings indicating there on the Electrical Work as actually
and finally installed.
J.8.13 Standard of Materials
1.
All materials and equipment shall be new and shall conform to the respective
specifications and standards of the PSA, ANSI, UL, NEMA, ASTM, IEEE,
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ASTM, CBM, FAA and ICEA in every case where such standards has been
established for the particular type of material in question.
2.
All materials on all system shall comply with the following specifications,
unless specifically accepted and all materials where not specified shall be of the
best of their respective kind.
3.
Samples of any materials shall be submitted for approval as required by the
Owner/Engineer.
J.8.14 Installation Requirements
4.1
Ground Test
The entire installation shall be free from improper grounds and from short
circuit. Test shall be made in the presence of the authorized representative of
the Owner/Engineer. In no case shall the insulation resistance be less than that
allowed by the Philippine Electrical Code-Volume I (PEC-I). Failures shall be
corrected in a manner satisfactory to the Owner/Engineer.
4.2
Performance Test
It shall be the responsibility of the Contractor to test all systems of the entire
electrical installation for proper operating conditions.
4.3
Cutting and Fitting
The Contractor shall do all cutting and fitting required for the installation of the
work and to make the several parts joint and coordinate with other works in
accordance with the drawings and in a manner satisfactory to the
Owner/Engineer.
J.8.15 Manholes and Handholes/Pull Boxes
1.
All manhole shall be constructed as shown in the plans. The ultimate
compressive strength and the soil bearing capacity shall be 9764 kg/m2 (200
PSF) minimum.
2.
Floor slab shall have 1% slope towards drain pit to provide positive drain and
connect the drain pipe to drainage system.
3.
All construction joint to next pouring shall be provided within water stop sealer.
4.
Pulling-in iron shall be mounted on the wall opposite to conduit entrance and in
line with the ducts & installed not higher than the centerlines of the lower most
ductsat the opposite conduit entrance.
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5.
Clean conduit entrance from reinforcing bars, Bend or Coop around group of
ducts as field conditions may require.
6.
All edges of concrete slab opening shall be reinforced accordingly.
7.
PVC electrical duct used in the construction of primary conduit system may be
used on drain pipe.
8.
Cast-in-place concrete manholes shall have a smooth trowel finish for floors
and horizontal surfaces.
9.
Concrete shall conform to the code requirements and top, walls and bottom
shall consist of reinforced concrete, however, walls and bottom shall be
monolithic concrete construction.
10.
Duct entrances shall be located in the plan.
J.8.16 Pull Cord
1.
Pull cord shall be nylon or equivalent having a minimum tensile strength of 95
kgs. in each empty duct.
2.
Minimum 600mm of slack shall be left at each end of pull cords.
J.8.17 Conduits
1.
Plastic conduit shall be Polyvinyl Chloride Conduit (PVC) type, electrical
grade, Schedule 40 PVC conduits shall be buried at a minimum of 0.60 m
depth and adequately protected against damage per Code requirements.
2.
No conduit shall be used in any system smaller than 15.0 mm (1/2 inch)
diameter electric trade size, nor shall have more than four (90 degree) bends in
any one run and where necessary pull boxes shall be provided as directed.
3.
Connections of all conduits shall have proper water/liquid tight fitted.
J.8.18 Grounding
All metallic conduits and equipment shall be properly grounded and bonded by means
of copper straps. The conduits of each system shall grounded by connecting to the
main grounding system. All ground connections shall have clean contact surfaces and
shall be tinned and sweated while bolting. Unless otherwise specified exposed ground
cables shall be installed in conduits and connections made readily accessible for
inspection. Connections shall not be made under ground as concealed in floor or walls.
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J.8.19 Execution
1.
2.
3.
4.
Concrete: Concrete for electrical requirements shall be at least 2500 psi concrete
with one-inch maximum aggregate conforming to code requirements or as
indicated in the plan.
Earthwork: Excavation, backfilling, and pavement repairs for electrical
requirements shall conform to Standard Code Requirements.
Underground Duct with Concrete Encasement: Construct underground duct
lines of individual conduits encased in concrete. Conduit shall be of Schedule
40PVC. Ducts shall no be smaller than 100mm in diameter unless otherwise
indicated. The concrete encasement surrounding the bank shall be rectangular
in cross-section and shall provide at least 75 mm of concrete cover for ducts.
Separate conduits by a minimum concrete thickness of 75 mm, unless
otherwise indicated.
3.1
The top of the concrete envelope not be less than 600 mm below grade.
3.2
Duct lines shall have a continuous slope downward toward manholes
with a pitch of not less than 75 mm inches in 30 meters. Except at
conduit risers, accomplish changes in direction of runs exceeding a total
of 10 degrees, either vertical or horizontal, curvature of 7620 mm.
Sweep bends may be made up of one or more curved or straight sections
or combinations thereof. Manufactured bends shall have a minimum
radius of 460 mm for use with conduits of less than 75 mm in diameter
and a minimum radius of 915 mm for ducts of 75 mm in diameter and
larger.
3.3
Terminate conduits in end-bells where duct lines enter manholes.
Separators shall be of precast concrete of high impact polystyrene or any
combination of these. Stagger the joints of the conduits by rows and
layers so as to provide a duct line having the maximum strength. During
construction, protect partially completed duct lines from the entrance of
debris such as mud, sand and dirt by means of suitable conduit plugs. As
each section of a duct line is completed from manhole to manhole, draw
a brush through having the diameter of the duct, and having stiff bristles
until the conduit is clear of all particles of earth, sand, and gravel; then
immediately install conduit plugs.
3.4
Remove existing ducts as indicated. Cap portions of ducts to be
abandoned. Seal abandoned duct with grout in nearest manhole.
Cast-In-Place Manholes: Provide cast-in-place reinforced concrete manholes as
indicated.
3.5
In each electric manhole, at a point close to the wall as indicated, a ¾
inch (20mm) by 10 foot copper-clad steel ground rod shall be driven into
the earth before the floor is poured so that approximately 4 inches (100
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mm) of the ground rod will extend above the manhole floor. Ground rod
shall be sectional type.
3.6
5.
Manhole Grounding: Ground rods installed in electrical-distributionsystem manholes shall be properly connected to the cable shielding at
each cable joint or splice by means of No. 4 AWG or equivalent braided
tinned copper wire. Connections to cable shielding shall be means of
tinned terminals soldered to ground wire cares shall be taken in
soldering not to damage cable shields. Ground rods shall be protected
with a double wrapping of pressure-sensitive plastic tape for a distance
of 2 inches above and 6 inches below concrete penetrations. Ground
wires shall be neatly and firmly attached to manhole walls and the
amount of exposed bare wire shall be held to minimum.
Grounding in Manholes: Non-current carrying metallic parts associated with
electrical equipment shall have a maximum resistance to solid “earth” ground
not exceeding the following values.
Grounds in manholes
10 ohms
When work in addition to that indicated of specified is directed in order to
obtained the specified ground resistance, the provisions of the contract covering
“Changes” shall apply.
5.1
Grounding electrodes shall be cone pointed driven.
5.2
Make grounding connections by exothermite type process. Make
thermit welds strictly in accordance with the weld manufacturer’s
written recommendations. Weld which have “puffed up” or which show
convex surfaces indicating improper cleaning are not acceptable. No
mechanical connector is required at thermit weldments.
5.3
In lieu of an exothermic type process, a compression ground grid
connector for a type which uses hydraulic compression tool to provide
the correct circumferential pressure may be used. Tools and dies shall
be as recommended by the manufacturer. An embossing die code or
other standard method shall provide visible indication that a connector
has been adequately compressed on the ground wire. Connector shall
be of high conductivity copper.
5.4
Grounding conductors shall be bare soft-drawn copper wire No.4 AWG
minimum unless otherwise indicated or specified.
5.5
Connect copper-clad steel ground rods only to insulated THW or RHW
copper ground conductor and weld the connection. Insulate the entire
area of the rod in the vicinity of the weld and the connecting wire and
seal against moisture penetration.
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5.6
Provide all empty conduits with a plastic rope having a breaking
strength of at least 200 lbs. Leave 24 inches of spare at each end of the
pull-cord.
5.7
Ground Rods: test ground rods for ground resistance value before any
wire is connected. Use a portable ground testing megger to test each
ground or group of grounds. The instrument shall be equipped with a
meter reading directly in ohms or fractions thereof to indicate the ground
value of the ground electrode under test. Provide on ecopy of the megger
manufacturer’s directions for use of the ground megger indicating the
method to be used.
5.8
Test Report:
600 volt cables (identify each cable and test result)
High voltage cables (identify electrodes and systems, each test)
Grounding Electrodes and Systems (identify electrodes and systems,
each test).
6.
Conduits: Conduits shall be polyvinyl chloride (schedule 40) and shall be
encased in concrete. Each conduit run shall not include more than two (2) 90
degrees bends. Where conduits shall run under areas used for vehicular traffic,
a minimum depth of 1000 mm. Below existing ground level shall be
maintained. Conduits shall be separated from power conduits by not less than
50 mm of concrete or 300 mm of well tamped earth. Conduits shall be
internally dry and free from foreign matters.
7.
Serve Box: Serve boxes that is to be constructed shall be made of concrete with
its cover provided with galvanized steel lifting bar. Each service box shall be
provided with a 3000 mm long ground rod.
J.8.20 Testing and Commissioning
After the installation is completed, and at such time as the Engineer may direct, at he
Contractor shall conduct operating test for approval. The equivalent shall be
demonstrated to operate in accordance with the requirements of this specifications. The
test shall be performed in the presence of the Owner or his authorized representative.
The contractor shall furnish the instruments and personnel required for the test, and the
local utilities will furnish the necessary power.
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