BLANKET SPECIFICATION
BOEING AUBURN SITE
ORIGINAL
JUNE 2006
SECTION 16121
15 KV MEDIUM VOLTAGE CABLE
PART 1
GENERAL
1.01
SCOPE OF WORK
A.
This specification describes the requirements for installation of single conductor 15 kV shielded power
cable.
B.
This section includes additional requirements to those set forth in other sections.
PART 2
PRODUCTS
2.01
15 KV CABLE
A.
Contractor will furnish all 15 kV cable to be installed under this contract.
B.
Cable is compressed stranded copper conductor with copper shielding tape, and 220 mil EPR insulation.
Overall jacket is PVC.
C.
Ratings: The cable is #4/0 AWG, 1C, 15 kV, shielded, type MV-105, 133% insulation level.
D.
Cable is Okonite, Okoguard, Catalog No. 115-23-3121, or equal.
2.02
SPLICES IN 15 KV SHIELDED CABLE
A.
All straight splices in 15 kV cable shall be made with 5500 series in-line splice kits (cold shrink) as
manufactured by the 3M Corporation. No substitutions allowed.
B.
Wye splices shall be made with 5815 series modular splicing system as manufactured by the 3M
Corporation. No substitutions allowed.
C.
Cables shall be spliced in all manholes through which the cable passes.
2.03
TERMINATIONS
A.
All 15 kV terminations shall be made with 7622-T-100 QT3 termination kits (cold shrink) as
manufactured by the 3M Corporation. No substitutions allowed.
B.
Terminals for 15 kV cable shall be bronze, double eyebolt type mechanical lug. Anderson (Square D.)
Class 3710 Type TLD, VL2, or VL3D as required for installation.
PART 3
EXECUTION
3.01
INSTALLATION
A.
Owner will perform all 15 kV switching and grounding of feeders to be worked on. Contractor to notify
owner prior to any work being performed on the 15 kV system. Only one 15 kV feeder will be available
for work at a time.
B.
Contractor shall verify the location of grounding devices prior to beginning work.
REVISION 2
FEB 2012
SECTION 16121
15KV MEDIUM VOLTAGE CABLE
PAGE - 1
BLANKET SPECIFICATION
BOEING AUBURN SITE
ORIGINAL
JUNE 2006
C.
All conduit systems shall be installed with insulated grounding bushings and bare #4/0 copper grounding
conductor from bushing to substation ground bus.
D.
All conduits, pullboxes, junction boxes, and other raceway systems utilized for 15 kV cables shall be
painted orange prior to energizing the cables. Verify color with owner prior to application. Stencil "Over
600 Volts" every 50 feet on the conduit and on all pull boxes.
3.02
TESTING
A.
B.
C.
Strict adherence to good safety practices is mandatory in all tests involving high voltage. Safety practices
shall include, but are not limited to the following requirements:
1.
Occupational Safety and Health Act of 1970 (OSHA)
2.
Accident Prevention manual for Industrial Operations, Seventh Edition, National Safety Council,
Chapter 4.
3.
Applicable state and local safety operating procedures.
Test shall be conducted within the framework of the following procedures.
1.
All acceptance test shall be performed with apparatus de-energized, except where otherwise
specifically required.
2.
All acceptance tests shall be done in the presence of the owner.
3.
The contractor shall have available sufficient protective barriers and warning signs to conduct
specified tests safely. At a minimum both ends of the cable being tested should be barricaded and
have a posted sign.
VLF (Very Low Frequency) AC Hipot Testing: All 15 kV cables installed or modified under this contract
shall be tested at frequency output of 0.1 Hz.
1.
Each conductor shall be individually tested with all other co nductors grounded. All shields shall be
grounded.
2.
For cables that have previously been in service, the AC potential shall be maintained at 22 kV for
thirty (30) minutes after stabilization. The dissipation factor shall be recorded every minute.
3.
For new cables, the AC potential shall be maintained at 22 kV for forty-five (45) minutes after
stabilization. The dissipation factor shall be recorded every minute.
4.
Test results shall be recorded and submitted to owner.
D.
Any new, modified, or repaired cable installation that have had two or more cores jointed, reterminated,
or disconnected from equipment and are capable of being paralleled, or before a cable is paralleled with
any other circuit, a phase check shall be performed against a known supply to verify the the cable has the
correct phase relation to the system.
E.
Any new, modified, or repaired cable installation that have had two or more cores jointed, reterminated,
or disconnected from equipment shall have a phase rotation check performed at the completion of the
work to verify proper phase rotation.
3.03
IDENTIFICATION
A.
Identify 15 kV cables with colored tape (black, red, blue) with violet tracer to indicate their phase.
B.
Identify 15 kV cable with engraved stainless steel tags at each manhole, pullbox, splicebox, and
termination. Identification shall consist of 15 kV feeder number, phase letter, and cable number (where
applicable for parallel conductors).
REVISION 2
FEB 2012
SECTION 16121
15KV MEDIUM VOLTAGE CABLE
PAGE - 2
BLANKET SPECIFICATION
BOEING AUBURN SITE
ORIGINAL
JUNE 2006
END OF SECTION
REVISION 2
FEB 2012
SECTION 16121
15KV MEDIUM VOLTAGE CABLE
PAGE - 3
BLANKET SPECIFICATION
BOEING AUBURN SITE
ORIGINAL
JUNE 15, 2006
SECTION 16311
SECONDARY UNIT SUBSTATION (INSTALLATION)
PART 1
GENERAL
1.01
SCOPE OF WORK
A.
This specification describes the requirements for installation of owner furnished unit substation.
B.
This section includes requirements that are required in addition to requirements set forth in other sections.
PART 2
PRODUCTS
2.01
UNIT SUBSTATION
A.
B.
Owner will furnish one (1) 1500/2000 kVA, 12.47 kV – 4160Y/2400V unit substation consisting of the
following:
1.
Incoming section: Duplex switches and fuses, complete with one set of surge arrestors on line side of
each switch. Approximate weight, 2900 lbs.
2.
Transformer section: 1500/2000 kVA cast coil dry type transformer. Approximate weight, 14,400
lbs.
3.
Metal enclosed switchgear section: Main circuit breaker & Control compartment and (2) draw out
power circuit breakers compartment. Approximate weight, (less breakers) 2050 lbs & 1390 lbs.,
respectively.
Substation is manufactured by Eaton Electrical Corporation.
PART 3
EXECUTION
3.01
INSTALLATION
A.
The substation will be installed mounted on a platform in building 17-06. The unit shall be located as
shown on the drawings.
B.
The substation sections shall be assembled and installed in accordance with the applicable drawings and
written instructions of the manufacturer.
C.
The circuit breakers shall be installed and trip units set as shown on the drawings or as provided by
Boeing.
D.
Make all ground connection to switchgear ground bussing per
E.
All accessories shall be installed and adjusted as per manufacturer's instructions. These may include, but
are not limited to the following items:
1.
Circuit breaker hoist.
2.
Metering and instrumentation.
3.
Fuses and protective devices.
REVISION 1
MARCH 2012
SECTION NO. 16311
SECONDARY UNIT SUBSTATION
PAGE - 1
BLANKET SPECIFICATION
BOEING AUBURN SITE
3.02
ORIGINAL
JUNE 15, 2006
TESTING
A.
The contractor shall engage the services of an independent testing laboratory or other Boeing approved
consultant for the purpose of performing acceptance tests.
1.
3.03
Acceptance testing shall be performed per the requirements in specification “Section 16950
Secondary Unit Substation Acceptance Testing.”
IDENTIFICATION
A.
Engrave each 15kV switch with feeder number. Utilize nameplates provided with substation.
B.
Engrave each draw out breaker compartment with load designation. Utilize nameplates provided with
substation.
C.
Identify substation with 10" black stenciled letters on the front and back of the transformer section and on
the substation platform door.
D.
Identify interior (rear) of each 15kV switch with 6" stenciled letters. Identify with feeder number serving
that switch. Feeders shall be stenciled in black.
E.
Submit proposed nameplate and stencil schedule for approval prior to engraving.
END OF SECTION
REVISION 1
MARCH 2012
SECTION NO. 16311
SECONDARY UNIT SUBSTATION
PAGE - 2
BLANKET SPECIFICATION
BOEING AUBURN SITE
ORIGINAL
MARCH 25, 1999
SECTION 16450
GROUNDING
PART 1
GENERAL
1.01
WORK INCLUDED
A.
This specification describes the requirements for the grounding of electrical systems and equipment.
B.
Installation shall be in accordance with the National Electrical Code (NEC).
1.02
SUBMITTALS
A.
Submit product data under the provisions of Section 01300.
B.
Provide data for ground rods, connectors and connection materials and grounding fittings.
1.03
REFERENCES
A.
UL 467
PART 2
PRODUCTS
2.01
MATERIALS
Grounding and Bonding Equipment
A.
Ground wire: Soft drawn bare stranded copper wire, sized as noted on the drawings.
B.
Insulated ground wire: Soft drawn stranded copper wire with green colored insulation, size as noted on
drawings.
C.
Below grade terminals and connectors: Exothermic weld type (Caldwell or equal).
D.
Above grade terminals and connectors: Burndy Hyground compression system.
E.
Ground rods: 3/4" x 30', copper-clad steel, ¾ inch diameter, minimum 30 ft length. Provide fittings and
couplings as required for installation.
PART 3
EXECUTION
3.01
PREPARATION
A.
3.02
All contacting surfaces of ground connections shall be cleaned to bright metal before connection is made.
INSTALLATION
A. Grounding conductors: Shall be installed with sufficient slack as to prevent breakage. Refer to drawings for
grounding conductor routing and size.
B. Ground rods: Shall be driven the full length with the top of the ground rod 2’6” below finished grade. Refer
to drawings for ground rod location.
REVISION 1
4/2014
SECTION 16450
GROUNDING
PAGE 1
BLANKET SPECIFICATION
BOEING AUBURN SITE
ORIGINAL
MARCH 25, 1999
C. Grounding Conductor Conduits: Install in conduit where shown or where subject to damage, all grounding
conductors smaller than #6 AWG must be protected from damage. Grounding conductors entering the
building from the ground grid shall be installed in rigid steel conduit; the rigid steel conduit shall be stubbed
above the floor such that a grounding coupling can be installed. Grounding conductor shall be installed in
non-ferrous conduit when being routed inside the building.
D. Underground Conduits: Provide a separate insulated grounding conductor in all underground conduits.
Terminate each end on a grounding lug, bus or bushing.
E. Below grade connections and splices: Provide as required and as shown on drawings.
F.
1.
Make connections in such a manner as to minimize possibility of galvanic action or electrolysis.
2.
Use exothermic weld type connections and splices recommended by manufacture for ground
conductor indicated in drawings. Use tools and equipment recommended by the manufacturer of
the connectors.
3.
Comply with manufacturer’s written instructions. Welds that are puffed up or show bubbles on
surfaces indicating improper cleaning are not acceptable. All welds are to be inspected prior to
burial.
Above grade connections and splices: Provide as required and as shown on drawings.
1.
Make connections in such a manner as to minimize possibility of galvanic action or electrolysis.
2.
Use hydraulic compression tools to provide the correct circumference pressure for compression
connectors. Use tools and dies recommended by the manufacturer of the connectors.
3.
Connections, taps, and splices shall be made by compression connectors, Burndy Hyground
compression system.
4.
Tighten grounding and bonding connectors and terminals, including screws and bolts in
accordance with the manufacturer’s published torque tightening values for connectors and bolts.
Where manufacturer’s torque requirements are not indicated, tighten connections to comply with
torque tightening values specified in UL 486A and UL 486B.
G. Testing: After ground system is installed, a test of grounding resistance shall be performed in accordance
with ANSI/IEEE 81. Perform all potential tests on main system using the “Multiple Ground Rod” method
and suitable instruments. Maximum resistance to ground shall be less than 5 Ohms. If ground system
cannon obtain desired resistance, immediately notify the Engineer. Certify in writing to the Engineer that
the grounding test has been made and that the requirements of this portion have been met for the “System
Ground.”
END OF SECTION
REVISION 1
4/2014
SECTION 16450
GROUNDING
PAGE 2
BLANKET SPECIFICATION
BOEING AUBURN SITE
ORIGINAL
JUNE 15, 2006
SECTION 16950
SECONDARY UNIT SUBSTATION ACCEPTANCE TESTING
PART 1- GENERAL
1.01
SCOPE
A. The Contractor shall engage the services of a recognized specialized testing company for the purpose of
performing quality control inspections and tests as herein specified.
B. The testing company shall provide all material, equipment, labor and technical supervision to perform such
tests and inspections.
C. The intent of these tests is to check and verify that all electrical equipment is operational within industry
and manufacturer's tolerances and that equipment is installed and functioning in the system in the manner
designed by the engineer.
D. Upon completion of the tests and inspections noted in these specifications, a label shall be attached to all
serviced devices. These labels will indicate date serviced and the testing company responsible.
E. The tests and inspections shall determine suitability for continued reliable operation.
F. A copy of the hand written test form shall be provided for all equipment tested at the end of each day for
engineering review. The form shall include a summary of findings and, if applicable or necessary,
suggestions for corrective action.
1.02
APPLICABLE CODES, STANDARDS AND REFERENCES
A. All inspections and tests shall be in accordance with the following applicable codes and standards except as
provided otherwise herein.
National Electrical Code - NEC
National Electrical Manufacturer's Association - NEMA
American Society for Testing and Materials - ASTM
Institute of Electrical and Electronic Engineers - IEEE
American National Standards Institute - ANSI C2: National Electrical Safety Code
State and local codes and ordinances
Insulated Power Cable Engineers Association - IPCEA
Association of Edison Illuminating Companies - AEIC
Occupational Safety and Health Administration-OSHA 29CFR Part 1910.269
National Fire Protection Association - NFPA
ANSI/NFPA 70: National Electrical Code
ANSI/NFPA 70.B: Electrical Equipment Maintenance
NFPA 70E: Electrical Safety Requirements for Employee Workplaces
REVISION 1
FEB 2012
SECTION NO. 16950
SECONDARY UNIT SUBSTATION ACCEPTANCE TESTING
PAGE - 1
BLANKET SPECIFICATION
BOEING AUBURN SITE
ORIGINAL
JUNE 15, 2006
ANSI/NFPA 78: Lightning Protection Code
ANSI/NFPA 101: Life Safety Code
B. All inspections and tests shall utilize the following references.
1.03
1.
Project design specifications
2.
Project design drawings
3.
Manufacturer's instruction manuals applicable to each particular apparatus.
QUALIFICATIONS OF TESTING AGENCY
A. The test, plan, procedures and reports shall be reviewed by one of the testing company's full time electrical
engineers who is licensed and registered as a P.E. in the state of Washington.
B. The testing company shall be a full service company with a minimum of 15 years experience that employs
trained test engineers capable of troubleshooting as well as identifying power equipment and systems
deficiencies. The testing company shall function as an unbiased testing authority professionally
independent of the manufacturers, suppliers and installers of equipment or systems evaluated by the testing
firm.
C. The testing company shall staff engineering support personnel to provide technical evaluation support for
the field service personnel. The support personnel shall be certified by the State of Washington as an
approved engineering firm. The testing company shall utilize full-time technicians who are regularly
employed by the firm for testing purposes.
D. The testing company shall be certified by the State of Washington Electrical Inspection agency to perform
ground fault testing as required by the National Electrical Code Sections 230-95 (c) and WAC 296-46-999.
E. Proof of qualifications shall be submitted prior to start of site testing.
F. The testing company shall have the following safety training:
CPR
Bloodborne pathogens
First Aid
OSHA safety training
Lockout/ tagout
Hazardous communications /right to know
Respirator use and application
Handling hazardous materials
Emergency response
Confined spaces
Fire safety
Arc Flash Training and Practices
REVISION 1
FEB 2012
SECTION NO. 16950
SECONDARY UNIT SUBSTATION ACCEPTANCE TESTING
PAGE - 2
BLANKET SPECIFICATION
BOEING AUBURN SITE
1.04
ORIGINAL
JUNE 15, 2006
DIVISION OF RESPONSIBILITY
A. The contractor shall torque down all accessible bolts; perform routine insulation resistance tests on all
branch and feeder circuits; continuity checks on all branch and control wiring; and phase rotational tests for
all distribution and utilization equipment prior to and in addition to tests performed by the testing company
specified herein.
B. The contractor shall supply a suitable and stable source of test power to the testing company at each test
site. The testing company shall specify requirements. The testing company shall be responsible for moving
and lifting their test equipment to the appropriate locations at the owner’s site.
C. The contractor shall notify the testing company at least two weeks prior to equipment availability for
electrical tests. Work shall be coordinated to expedite project scheduling.
D. The project engineer will supply a complete set of electrical plans, specifications and any pertinent change
orders to the testing company prior to commencement of testing.
E. The testing company shall notify the engineer prior to commencement of any testing.
F. The testing company shall be responsible for implementing all final settings and adjustments on protective
devices and electrical equipment in accordance with project engineer's specified values.
G. Any system material or workmanship which is found defective on the basis of electrical tests shall be
reported directly to the project engineer.
H. The testing company shall maintain a written record of all tests and upon completion of the project,
assemble, certify and deliver a final test report.
1.05
GENERAL
A. Test Instrument
1.
The testing laboratory shall have an annual calibration program which maintains all applicable test
instrumentation within rated accuracy.
2.
The accuracy shall be traceable to the National Bureau of Standards in an unbroken chain.
3.
Dated calibration labels shall be visible on all test equipment.
4.
Records must be kept up to date which show date and results of all instruments calibrated or tested.
B. Test Report
1.
The test report shall include the following:
a. Summary of project.
b. Description of equipment tested.
c. Brief description of the test.
d. Test results.
e. Date.
f. Conclusions and recommendations.
g. Appendix, including appropriate, original hand written test forms.
h. List of test equipment used and calibration date.
2.
REVISION 1
FEB 2012
Furnish 5 copies of the completed report with original test forms to the project engineer no later
than 30 days after completion of the project, unless directed otherwise.
SECTION NO. 16950
SECONDARY UNIT SUBSTATION ACCEPTANCE TESTING
PAGE - 3
BLANKET SPECIFICATION
BOEING AUBURN SITE
3.
ORIGINAL
JUNE 15, 2006
The contractor shall include one copy of this completed report in each of the Operations and
Maintenance Manuals.
C. Safety and Precautions
1.
Safety practices shall include, but are not limited to, the following requirements:
a. Occupational Safety and Health Act - OSHA 29CFR Part 1910.269.
b. Accident Prevention Manual for Industrial Operations, Seventh Edition, National Safety
Council, Chapter 4.
c. Applicable state and local safety operating procedures.
d. National Fire Protection Association - NFPA 70E
2.
Tests shall be performed with apparatus de-energized unless otherwise specified (e.g. rotation,
phasing)
3.
The testing company's lead test engineer for the project shall be a designated safety representative
and shall be present on the project and supervise testing operations and safety requirements.
4.
Power circuits shall have conductors shorted to ground by a hotline grounded device approved for
the purpose.
5.
In all cases, work shall not proceed until the safety representative has determined that it is safe to
do so.
6.
The testing company shall have available sufficient protective barriers and warning signs to
conduct specified tests safely.
7.
The owner's safety procedures shall be reviewed and understood by the testing company personnel.
PART 2 - PRODUCTS
NOT USED
PART 3 – EXECUTION
3.01
INSPECTION AND TEST PROCEDURES
A. Visual and Mechanical Inspection
1.
Compare equipment nameplate data with drawings and specifications.
2.
Inspect physical, electrical, and mechanical condition.
3.
Confirm correct application of manufacturer's recommended lubricants.
4.
Verify appropriate anchorage, required area clearances, check for physical damage, and correct
alignment.
5.
Inspect all doors, panels, and sections for paint, dents, scratches, fit, and missing hardware.
6.
Verify tightness of accessible bolted electrical connections by calibrated torque-wrench method in
accordance with manufacturer's published data or Table 3.3.
7.
Confirm correct operation and sequencing of electrical and mechanical interlock systems.
a.
REVISION 1
FEB 2012
Attempt closure on locked-open devices. Attempt to open locked-closed devices.
SECTION NO. 16950
SECONDARY UNIT SUBSTATION ACCEPTANCE TESTING
PAGE - 4
BLANKET SPECIFICATION
BOEING AUBURN SITE
b.
ORIGINAL
JUNE 15, 2006
Make key exchange with devices operated in off-normal positions.
8.
Inspect insulators for evidence of physical damage or contaminated surfaces.
9.
Verify correct barrier and shutter installation and operation.
10.
Exercise all active components.
11.
Inspect mechanical indicating devices for correct operation.
12.
Verify that filters are in place and/or vents are clear.
13.
Verify all labeling of terminal blocks and conductors match submitted manufacturer’s drawings.
B. Electrical Tests
1.
Perform ground-resistance tests in accordance with Section 3.06.
2.
Perform resistance tests through all bus joints with a low-resistance ohmmeter. Any joints that
cannot be directly measured due to permanently installed insulation wrap shall be indirectly
measured from closest accessible connection.
3.
Perform insulation-resistance tests on each bus section, phase-to-phase and phase-to-ground.
4.
Perform insulation-resistance tests at 1000 volts dc on all control wiring. Do not perform this test
on wiring connected to solid-state components.
5.
Check meters against calibrated source and verify multipliers.
6.
Perform Equipment Ground Fault protection system performance tests as required by the NEC
215.10 on all system feeders. A firm having qualified personnel and proper equipment must
perform the tests required. A copy of the manufacturer's performance testing instructions and a
written performance acceptance test record signed by the person performing the test must be
provided to the owner. The performance acceptance test record must include test details including,
but not limited to, all trip settings and measurements taken during the test.
7.
Perform point –to – point continuity tests on all conductors. Verify circuit integrity against
submitted manufacturer’s drawings.
C. Test Values
3.02
1.
Bolt-torque levels shall be in accordance with Table 3.3, unless otherwise specified by
manufacturer.
2.
Compare bus connection resistances to values of similar connections.
3.
Insulation-resistance values for bus, control wiring, and control power transformers shall be in
accordance with manufacturer's published data. In the absence of manufacturer's published data,
use Table 3.1. Values of insulation resistance less than this table or manufacturer's minimum
should be investigated.
CIRCUIT BREAKERS
A. Visual and Mechanical Inspection
1.
Compare breakers against drawings and specifications for correct rating.
2.
Inspect physical condition for shipping damage.
3.
Verify tightness of connections.
4.
Verify breaker operates smoothly by closing and tripping several times.
5.
Remove arc chutes and inspect for signs of cracks or broken parts.
REVISION 1
FEB 2012
SECTION NO. 16950
SECONDARY UNIT SUBSTATION ACCEPTANCE TESTING
PAGE - 5
BLANKET SPECIFICATION
BOEING AUBURN SITE
ORIGINAL
JUNE 15, 2006
6.
Check main and arcing contacts against manufacturing tolerance for wear, wipe, closing sequence,
open gap and alignment.
7.
Inspect control wiring and check connections for tightness.
8.
Inspect control devices if applicable such as relay, auxiliary contacts, etc., for cracked part and
wear.
B. Electrical Tests
1.
3.03
Confirm that all breaker interlocks are operating correctly with the breaker in the “engaged”, “test”
and “disconnected” positions. The following electrical tests shall be performed on each circuit
breaker.
a.
Minimum pickup current
b.
Long time delay at 300% of long time pickup
c.
Short time pickup and delay
d.
Instantaneous pickup (where applicable)
e.
Ground fault pickup and delay
2.
Check contact resistance with a low voltage ohmmeter.
3.
Check breaker insulation resistance with a 1000 volt D.C. megohmmeter as follows:
a.
phase to phase – breaker closed
b.
phase to ground – breaker closed
c.
across contacts – breaker open
4.
Electrically operate main breaker to check for proper operation in closing and tripping including
auxiliary devices (ground fault, undervoltage, remove trip, etc. when applicable).
5.
Check breakers with spring charging mechanism for proper operation and limit switch cutoff.
6.
Test breakers with solid state trip devices using primary current injections at final settings.
TRANSFORMERS
A. Visual and Mechanical Inspection
1.
Compare equipment nameplate data with drawings and specifications.
2.
Inspect physical and mechanical condition.
3.
Verify that control and alarm settings on temperature indicators are as specified.
4.
Verify that cooling fans operate correctly and that fan motors have correct overcurrent protection.
5.
Verify tightness of accessible bolted electrical connections by calibrated torque-wrench method in
accordance with manufacturer's published data or Table 3.3.
6.
Make a close examination for shipping brackets or fixtures that may not have been removed during
installation. Insure that resilient mounts are free.
8.
Verify that winding core, frame, and enclosure grounding are correct.
9.
Verify that as-left tap connections are as specified.
B. Electrical Tests
REVISION 1
FEB 2012
SECTION NO. 16950
SECONDARY UNIT SUBSTATION ACCEPTANCE TESTING
PAGE - 6
BLANKET SPECIFICATION
BOEING AUBURN SITE
ORIGINAL
JUNE 15, 2006
1.
Perform insulation-resistance tests winding-to-winding and each winding-to-ground, with test
voltage in accordance with Table 3.2. Calculate polarization index.
2.
Perform power-factor or dissipation-factor tests in accordance with the test equipment
manufacturer's instructions.
3.
Perform a turns-ratio test on all tap connections. Verify that winding polarities are in accordance
with nameplate.
4.
Verify correct secondary voltage phase-to-phase and phase-to-neutral after energization and prior
to loading.
5.
Perform temperature monitor/fan controller test using externally applied power as required.
Program and/or calibrate as needed during this test.
C. Test Values
3.04
1.
Bolt-torque levels shall be in accordance with Table 3.3 unless otherwise specified by
manufacturer.
2.
Insulation-resistance test values at one minute should not be less than values recommended in
Table 3.2. Results shall be temperature corrected in accordance with Table 3.5.
3.
The polarization index should be compared to manufacturer's factory test results. If manufacturer's
data is not available, acceptance test results will serve as baseline data.
HIGH VOLTAGE SWITCHES
A. Visual and Mechanical Inspection
1.
Inspect cleanliness of switch mechanism and enclosure. Note condition of inspection and IR
viewing windows.
2.
Inspect physical condition for shipping damage.
3.
Check main and arcing contact blades for proper alignment and operation. Make adjustments as
needed to meet manufacturer’s tolerances.
4.
Check operating mechanism and key or mechanical interlocks for proper operation. Make
adjustments as required. Lubricate according to manufacturer’s recommendations.
5.
Check each fuse assembly for discrepancies in rating and size.
6.
Inspect contractor field bolt torque marks.
B. Electrical Tests
3.05
1.
Perform insulation resistance test across open contacts for each pole.
2.
Perform contact resistance tests on each pole with a low resistance ohmmeter.
3.
Perform resistance tests with a low resistance ohmmeter across each fuse assembly.
METERING
A. Visual and Mechanical Inspection
1.
Compare equipment nameplate data with drawings and specifications.
2.
Inspect physical and mechanical condition.
3.
Verify tightness of electrical connections.
REVISION 1
FEB 2012
SECTION NO. 16950
SECONDARY UNIT SUBSTATION ACCEPTANCE TESTING
PAGE - 7
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BOEING AUBURN SITE
ORIGINAL
JUNE 15, 2006
4.
Inspect cover gasket, cover glass, condition of spiral spring, disc clearance, contacts, and caseshorting contacts, as applicable.
5.
Verify mechanically for freedom of movement, correct travel and alignment, and tightness of
mounting hardware.
6.
Verify current transformer polarity. Verification of current transformer circuits shall be by current
injection at the CT's and confirming proper phasing at each meter.
B. Electrical Tests
3.06
1.
Check meter against calibrated to verify accurate readings.
2.
Verify all instrument multipliers.
3.
Electrically confirm that current transformer and voltage transformer secondary circuits are intact.
4.
Perform ION Power monitor meter test using externally applied power as required. Program and/or
calibrate as needed during this test.
GROUNDING SYSTEMS
A. Visual and Mechanical Inspection
1.
Verify ground system is in compliance with drawings and specifications.
B. Electrical Tests
1.
Perform point-to-point tests to determine the resistance between the main grounding system and all
major electrical equipment frames, system neutral, and/or derived neutral points.
C. Test Values
3.07
1.
The resistance between the main grounding electrode and ground should be no greater than five
ohms for commercial or industrial systems and one ohm or less for generating or transmission
station grounds unless otherwise specified by the owner. (Reference: IEEE Standard 142.)
2.
Investigate point-to-point resistance values that exceed 0.5 ohm.
SURGE ARRESTERS
A. Visual and Mechanical Inspection
1.
Compare equipment nameplate data with drawings and specifications.
2.
Inspect physical and mechanical condition.
3.
Inspect for correct mounting and adequate clearances.
4.
Verify tightness of accessible bolted electrical connections by calibrated torque-wrench method in
accordance with manufacturer's published data or Table 3.3.
5.
Verify that the ground lead on each device is individually attached to a ground bus or ground
electrode.
B. Electrical Tests
1.
Perform an insulation-resistance test at voltage levels in Table 3.4.
C. Test Values
1.
REVISION 1
FEB 2012
Bolt-torque levels shall be in accordance with Table 3.3 unless otherwise specified by
manufacturer.
SECTION NO. 16950
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BLANKET SPECIFICATION
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2.
3.08
ORIGINAL
JUNE 15, 2006
Insulation-resistance values should be in accordance with Table 3.4.
TABLES
TABLE 3.1
SWITCHGEAR INSULATION-RESISTANCE TEST VOLTAGE
Minimum dc Test
Voltage
Voltage Rating
Recommended Minimum
Insulation Resistance In Megohms
0 – 250
500
50
251 - 600
1,000
100
601 - 5,000
2,500
1,000
5,001 - 15,000
2,500
5,000
15,001 - 25,000
5,000
20,000
25,001 - 35,000
15,000
100,000
In the absence of consensus standards dealing with insulation-resistance tests, the NETA Technical
Committee suggests the above representative values.
TABLE 3.2
TRANSFORMER INSULATION-RESISTANCE
ACCEPTANCE TEST VOLTAGE AND MINIMUM RESULTS
Recommended Minimum Insulation Resistance in
Megohms
Transformer Coil Rating
Type in Volts
Minimum dc Test
Voltage
Liquid Filled
Dry
0 – 600
1000
100
500
601 - 5000
2500
1000
5000
REVISION 1
FEB 2012
SECTION NO. 16950
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5001 - 15000
ORIGINAL
JUNE 15, 2006
5000
5000
25000
In the absence of consensus standards, the NETA Technical Committee suggests the above representative
values.
NOTE: Since insulation resistance depends on insulation rating (kV) and winding capacity (kVA), values
obtained should be compared to manufacturer's test data.
TABLE 3.3
US STANDARD BOLT TORQUES FOR BUS CONNECTIONS
HEAT-TREATED STEEL - CADMIUM OR ZINC PLATED
Grade
SAE 1 & 2
Minimum Tensile (P.S.I.)
SAE 5
64K
105K
Bolt Diameter In Inches
SAE 7
SAE 8
133K
150K
Torque (Foot Pounds)
1/4
4.0
5.6
8.0
8.4
5/16
7.2
11.2
15.2
17.6
3/8
12.0
20.0
27.2
29.6
7/16
19.2
32.0
44.0
48.0
1/2
29.6
48.0
68.0
73.6
9/16
42.4
70.4
96.0
105.6
5/8
59.2
96.0
133.6
144.0
3/4
96.0
160.0
224.0
236.8
7/8
152.0
241.6
352.0
378.4
1.0
225.6
372.8
528.0
571.2
SILICON BRONZE FASTENERS*
Bolt Diameter in Inches
Torque (Foot Pounds)
Nonlubricated
REVISION 1
FEB 2012
Lubricated
SECTION NO. 16950
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BLANKET SPECIFICATION
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ORIGINAL
JUNE 15, 2006
5/16
15
10
3/8
20
14
1/2
40
25
5/8
55
40
3/4
70
60
* Bronze alloy bolts shall have a minimum tensile strength of 70,000 pounds per square inch.
ALUMINUM ALLOY FASTENERS**
Bolt Diameter in Inches
Torque - (Foot Pounds)
Lubricated
5/16
8.0
3/8
11.2
1/2
20.0
5/8
32.0
3/4
48.0
** Aluminum alloy bolts shall have a minimum tensile strength of 55,000 pounds per square inch.
STAINLESS STEEL FASTENERS***
Bolt Diameter in Inches
Torque (Foot Pounds)
Uncoated
5/16
14
3/8
25
½
45
5/8
60
¾
90
***Bolts, cap screws, nuts, flat washers, locknuts: 18-8 alloy. Belleville washers: 302 alloy.
REVISION 1
SECTION NO. 16950
FEB 2012
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BLANKET SPECIFICATION
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ORIGINAL
JUNE 15, 2006
TABLE 3.4
INSULATION RESISTANCE TESTS ON ELECTRICAL APPARATUS AND SYSTEMS
Maximum Rating of
Equipment in Volts
Minimum Test Voltage, dc in
Volts
Recommended Minimum
Insulation Resistance in Megohms
250
500
25
600
1,000
100
5,000
2,500
1,000
8,000
2,500
2,000
15,000
2,500
5,000
25,000
5,000
20,000
35,000
15,000
100,000
46,000
15,000
100,000
69,000
15,000
100,000
In the absence of consensus standards dealing with insulation-resistance tests, the NETA Technical
Committee suggests the above representative values.
See table 3.5 for temperature correction factors.
TABLE 3.5
INSULATION RESISTANCE CONVERSION FACTORS
FOR CONVERSION OF TEST TEMPERATURE TO 20
Temperature
C
Multiplier
C
F
0
32
0.25
0.40
5
41
0.36
0.45
10
50
0.50
0.50
REVISION 1
FEB 2012
Apparatus Containing
Immersed Oil Insulations
Apparatus Containing
Solid Insulations
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ORIGINAL
JUNE 15, 2006
15
59
0.75
0.75
20
68
1.00
1.00
25
77
1.40
1.30
30
86
1.98
1.60
35
95
2.80
2.05
40
104
3.95
2.50
45
113
5.60
3.25
50
122
7.85
4.00
55
131
11.20
5.20
60
140
15.85
6.40
65
149
22.40
8.70
70
158
31.75
10.00
75
167
44.70
13.00
80
176
63.50
16.00
REVISION 1
FEB 2012
SECTION NO. 16950
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