David Ferguson, Manager
Construction Services
City Hall,
18th Floor, West Tower
100 Queen Street West
Toronto, Ontario M5H 2N2
Purchasing and Materials Management
Michael Pacholok, Acting Director
Via Internet Site Posting (9 Pages)
August 14, 2012
Addendum No.2
Request for Quotation No. 1201-12-5057
Closing: 12:00 Noon (LOCAL TIME), August 16, 2012
For: The installation of resistive load banks at Toronto Police Headquarters,
40 College Street, Toronto, Ontario.
Please refer to the above Request for Quotation (RFQ) document in your possession and be
advised of the following:
1. Questions and Answers:
Q1.
Will "Lifeline RW90" by Draka cable be permitted as alternate to MI cable?
A1.
No, it will not be permitted as alternate due to tight ceiling space over existing
equipment.
Q2
If the load banks are connected, and there is a power outage, what is telling them to get
off the emergency power system? Is this assumed in our scope of work as well?
A2.
There are two (2) generators in the building. Each generator is designed to serve 100% of
the building load. Thus one generator is on standby while the second one is considered
under maintenance, exercising or testing. The load bank system shall be only connected
at any time with the generator under maintenance/testing condition. The main breaker
(2500A) from the same generator on the existing synchronizing switchgear must be in
OFF open position to initiate the load bank system when the generator under testing is
exercised. ASCOs scope is to program/modify existing control programming to achieve
these requirements. If the main breaker of the same generator is in ON closed position,
the load bank system shall not operate under any condition. The 2500A MCCB breakers
on the transfer switch must be in off position except during generator exercising
conditions.
Q3.
Will these Start and Interlock cables between the splitter JB and 1000KW and 750KW
load bank ( drawg E2) be provided by Div 15? If these cables to be provided by Div 16,
then how many to provide from splitter JB to each Load bank?
A3.
Provide 6#14 AWG from 1000kW control unit to synchronizing switchgear through the
transfer switch and 6#14AWG from 750kw control unit to synchronizing switchgear
through the transfer switch in 27mm C.
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Q4.
Who will be the prime contractor for this project? Is it Electrical (Div 16)?
A4.
The prime contractor does not necessarily have to be electrical but can be any discipline
that meets the requirement of the contract.
Q5.
Do you have the part no of 1200A, 600V, 3W splitter box where 3 way power cables will
be terminated? A5. As per this addendum, the requirement of a splitter box has been deleted. Refer to
revised drawings in this addendum.
REVISIONS:
Drawings:
1. Refer to re-issued drawings E2 and E3 for Addendum #2 with the following changes:
a. Delete 1200A-3P fused disconnect switch for the 750kW load bank unit.
b. Delete splitter junction box and add 3000A, 600V, 3 phase Switchboard complete
with one (1) 1200A-3P breaker for 1000kW unit and 1000A-3P breaker for
750kW unit.
c. Install the 3000A Switchboard beside the 750kW unit as shown on revised E2.
2. Replace the tender drawings E1, E2 and E3 with the attached re-issued for Addendum #2
drawings E1, E2 and E3.
Specification:
1. Add the attached Section 16425 (600V Switchboard) under this tender.
Should you have any questions regarding this addendum, please contact Alishah Kassam at
akassam2@toronto.ca
Please attach this addendum to your RFQ document and be governed accordingly. Bidders must
acknowledge receipt of all addenda in their Quotation in the space provided on the Quotation
Request Form as per the Process Terms and Conditions, Section 1, Item 3 - Addenda, of the RFQ
document. All other aspects of the RFQ remain the same.
Yours truly,
David Ferguson
Manager, Construction Services
Purchasing and Materials Management
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TORONTO POLICE SERVICE
HEADQUARTERS
RESISTIVE LOAD BANK
600V SWITCHBOARD
Section 16425
Page 1
1
GENERAL
1.1
GENERAL
1.1.1
Comply with the Contract Documents which include, but are not necessarily limited to, the
General Conditions, the Supplementary General Conditions, the General Requirements,
Specifications, Drawings all Addenda and any Change Orders.
1.2
SCOPE
1.2.1
This section defines low voltage switchboard with fixed mounted molded case circuit breakers
for use in AC systems, rated 600 V or less.
1.3
SUBMITTALS
1.3.1
Product Data
.1
1.3.2
Shop Drawings
.1
1.3.3
1.3.4
Submit manufacturer’s product data indicating:
.1 Performance criteria, characteristics, features and ratings of individual circuit
breakers and other components. Also, time-current characteristic curves for over
current protective devices including circuit breaker trip devices and fusible devices.
.2 Product handling, storage, transportation and installation requirements and
techniques.
Submit shop drawings indicating:
.1 Overall length, height and depth of complete switchboard.
.2 Weight of shipping splits and overall weight of switchboard.
.3 Elevations, sections and relevant details of switchboard and operating components.
.4 Floor anchoring method and foundation template.
.5 Dimensioned cable/conduit entry and exit locations.
.6 Dimensioned layout of front panel mounted components.
.7 Design ratings, voltages and frequency.
.8 Electrical wiring diagrams including provision for external control wiring and
components as shown on typical wayside control wiring schematics.
.9 Sequence of operation.
Operations and Maintenance Manuals
.1
Identification: manufacturers name, electrical ratings, serial number, date of manufacture.
.2
Safety precautions, operating instructions and manufacture manuals.
.3
Troubleshooting guideline and protocol.
.4
List of recommended spare parts including names and addresses of spare parts
suppliers.
.5
Wiring diagrams, one line diagram, schematic diagrams and bill of materials.
.6
Final tests and commissioning reports.
Delivery, Storage and Handling
.1
Deliver products in factory labelled packages, in shipping groups of appropriate length.
.2
Circuit breakers shall be shipped inside their respective cells in which they were factory
tested.
.3
Store switchboard on site in protected, dry location, in strict compliance with
manufacturer’s instructions and recommendations.
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TORONTO POLICE SERVICE
HEADQUARTERS
RESISTIVE LOAD BANK
.4
600V SWITCHBOARD
Section 16425
Page 2
Provide energized strip heater in each cell to maintain dry conditions during storage.
1.4
REFERENCES
1.4.1
The low voltage switchboard assembly and all components shall be designed, manufactured,
and tested in accordance with the latest applicable following standards:
.1
CSA C22.2 #31
.2
CSA C22.2 #5
.3
ANSI-C37.13
1.5
REGULATORY REQUIREMENTS
1.5.1
The switchboard shall comply with the latest standard CSA
C22.2 #31. The assembly shall
bear a CSA label. All moulded case circuit breakers and components contained in this
switchboard shall bear a CSA label and comply with the latest issue of standard CSA C22.2 #5.
All Power Circuit breakers shall meet ANSI-C37.13 and be short circuit tested for use in the
assembly.
2
PRODUCTS
2.1
SWITCHGEAR ACCEPTABLE MANUFACTURERS
2.1.1
Commercial Switchgear
2.1.2
Cutler-Hammer
2.1.3
Schneider
2.1.4
Siemens
2.1.5
Or approved equal
2.2
DESCRIPTION
2.2.1
Metal enclosed switchboard consisting of circuit breaker, instrumentation and bus
compartments isolated from each other with steel panels.
2.3
RATINGS
2.3.1
Voltage rating shall be as indicated on the drawings. The entire assembly shall be suitable for
600 volts maximum service.
2.3.2
The service panel bus shall be rated 3000 amperes
2.3.3
The assembly shall be rated, type tested and CSA listed to withstand a short circuit of 65kA at
600 VAc
2.3.4
All bussing shall be silver flashed copper and braced as per short circuit of 65kA at 600VAc.
2.4
CONSTRUCTION
2.4.1
The switchboard shall be Sprinkler proof enclosed, and fabricated from code gauge steel
complete with formed doors to form a rigid dead front, totally enclosed structure. The service
entrance switchboard shall be free standing.
2.4.2
All compartments are to be designed to make components totally front accessible to enable the
panel to be installed against the wall.
2.4.3
The distribution section shall be separately barriered. Ventilation shall be provided to meet CSA
C22.2 #31 temperature rise requirements. Where a sprinkler proof switchboard is supplied,
ventilation shall not jeopardize sprinkler proof rule 26-008 of the Canadian Electrical Code.
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TORONTO POLICE SERVICE
HEADQUARTERS
RESISTIVE LOAD BANK
600V SWITCHBOARD
Section 16425
Page 3
2.4.4
All structures and covers are to be painted ASA-61 Grey.
2.4.5
Size: Each Structure, 90" high x 38" wide x 24" deep, vertically mounted.
2.4.6
Lamacoid nameplates shall be supplied in accordance with the nameplate schedule supplied by
the Consultant.
2.5
DISTRIBUTION SECTION
2.5.1
The distribution section shall be designed to accept the installation of circuit breakers.
2.5.2
Each full height distribution cubicle shall accommodate 50X of vertical distribution space
suitable for use with both moulded case circuit breakers. Standard distribution cubicle
dimensions shall be 90" high X 38" wide X 24" deep.
2.5.3
Feeder breakers shall be supplied as shown on the one-line drawings. Interrupting capacity of
feeder breakers shall be 65 kA RM Symmetrical at 600VAc.
2.5.4
Three pole, fixed molded case, manual operation, stored energy closing mechanism, integral
spring charging handle, position indicator, provision for padlocking. Phase and neutral current
sensors and digital trip unit with adjustable time current characteristics for long time, short time,
instantaneous and ground fault with I2t feature. Alphanumeric display and communication link
with associated digital monitor.
2.5.5
Circuit breakers to have digital trip units.
2.5.6
Circuit breakers of same rating identical and interchangeable.
2.5.7
Two spare "a" and two spare "b" auxiliary switch contacts for each circuit breaker, wired to
terminal block.
2.5.8
Undervoltage trip.
2.6
OPTIONAL FEATURES
2.6.1
Dripshield for sprinkler proof requirements
2.6.2
Ground Bus in the panel section
2.6.3
200% rated neutral bus
2.6.4
Base Channels
2.6.5
Door over distribution panel
2.7
GROUND BUS
2.7.1
Ground bus 98% conductivity copper, 6 mm x 50 mm minimum, extending full length of
switchboard with solderless connectors at each end suitable for No. 3/0 AWG copper grounding
cable.
2.8
FINISH
2.8.1
ANSI 61 light grey baked enamel finish on exterior.
2.8.2
White finish in circuit breaker and instrumentation compartments.
2.9
SOURCE QUALITY CONTROL
2.9.1
Standard production tests in accordance with CSA and EEMAC standards.
2.9.2
Repeat standard production tests in the presence of Consultant.
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TORONTO POLICE SERVICE
HEADQUARTERS
RESISTIVE LOAD BANK
600V SWITCHBOARD
Section 16425
Page 4
3
EXECUTION
3.1
INSTALLATION
3.1.1
Receive equipment, place in position and install per manufacturer's instructions, including the
following:
.1
Visual inspection to ensure that there is no damage resulting from shipment. Report
damage to Consultant immediately.
.2
Remove shipping blocks and braces.
.3
Install mounting channels per manufacturers recommendations.
.4
Level and align switchgear and bolt in place.
.5
Examine wiring connections to ensure that they are not loose; tighten as required.
.6
Install circuit breakers and other equipment in appropriate cells.
.7
Interconnect panel wiring.
3.2
FIELD QUALITY CONTROL
3.2.1
Check circuit breaker disconnect contacts, etc. and make any necessary adjustments.
3.2.2
Clean interiors including arc chutes.
3.2.3
Verify that air circuit breaker, current and potential transformer and fuse sizes and types
correspond with drawings.
3.2.4
Check tightness of bolted bus joint with a calibrated torque wrench. Refer to manufacturer's
instruction for recommended foot pound levels. Mark with adhesive tape or label when
satisfactory.
3.2.5
Operate circuit breakers and equipment, check for correct operation and make necessary
adjustments.
3.2.6
Touch up damaged paintwork.
3.2.7
On completion of installation, execute testing of equipment, in presence of Consultant, in
accordance with schedule of tests as approved by Consultant.
3.2.8
Perform field tests including but not limited to the following:
.1
.2
.3
.4
.5
.6
.7
.8
Meggering on low voltage power and control circuits.
Continuity test of low voltage circuits.
Phase sequence check.
Operational check and calibration of meters, relays, instruments, alarms and trips.
Current and potential transformers polarity check.
Calibrate and set trip levels for LV circuit breaker solid state trip units.
Functional tests of equipment.
Energizing of low voltage circuits.
3.2.9
Record results of tests and submit record to Consultant.
3.2.10
Furnish instruments and equipment required for testing. Submit certificates indicating test
equipment has been calibrated within last 12 months.
END OF SECTION
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