27-Section 160519 - Low Voltage Electrical Power Conductors and Cables.pdf
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- Attached to
- Removal and Replacement of Telemetry Cabinets for Existing SCADA System - Phased Projects
- Solicitation number
- ITB No.: 27-402/DL
- Issued by
- Palm Beach County, Florida
About this file
This is a technical specification document for Section 160519 (Low Voltage Electrical Power Conductors and Cables) related to ITB No. 27-402/DL for the removal and replacement of telemetry cabinets for an existing SCADA system in Florida. The project involves the replacement of thirty-three (33) telemetry cabinets as part of a phased initiative contracted to a licensed Florida General or Electrical Contractor. The contractor shall furnish all labor, materials, equipment, and incidentals necessary for construction. The contract includes an initial three-year period with an option to renew for an additional one-year term at the Authority's discretion. Bid responses must be submitted electronically through Bonfire by specified deadlines, and each bid must include bid security in the form of a surety company bid bond or cashier's check in an amount not less than five percent (5%) of the total bid amount.
The specification details technical requirements for wire and cable installations, including stranded THHN/THWN wire for low-voltage power and motor circuits, XHHW wire for control and metering applications, and shielded pair wire for process instrumentation. All conductors must be annealed, 98 percent conductivity, soft-drawn copper, with materials sourced from approved manufacturers including Hi-Tech Company, Rome Cable Corporation, Okonite Company, American Insulated Wire Company, and Belden Corporation. Installation requirements include careful handling to avoid damage, prohibition of splicing except where standard shipping lengths are exceeded, grounding of instrumentation wire shielding at the transmitter end only, and post-installation megohm meter testing of all 600-volt wire insulation at not less than 1,000 VDC. No small business enterprise participation is required for this solicitation.
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Text version
ITB No.: 27-402/DL Removal & Replacement of Telemetry Cabinets for 160519 -1 Existing SCADA Systems – Phased Projects
SECTION 160519
LOW VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES
PART 1 - GENERAL
1.01 SCOPE OF WORK
A. Furnish, install, and test all wire, cable, and appurtenances as shown on the Drawings and as hereinafter specified.
1.02 APPLICATIONS
A. Wire for all low-voltage power and motor circuits shall be stranded type THHN/THWN.
B. Single-conductor wire for control, indication, and metering shall be type XHHW No. 16 AWG, stranded.
C. Wire for process instrumentation shall be shielded pairs, No. 18 AWG stranded with individual drain wires.
1.03 SUBMITTALS
A. Proposed wire and cable samples shall be submitted for approval. Each sample shall have the size, insulation type, and voltage stenciled on the jacket.
B. Approved samples will be sent to the project location for the ENGINEER to compare with the wire actually installed.
C. Installed, unapproved wire shall be removed and replaced by the CONTRACTOR.
PART 2 - PRODUCTS
2.01 MATERIALS
A. All wires and cables shall be of annealed, 98 percent conductivity, soft drawn copper conductors.
B. All conductors No. 18 AWG and larger shall be stranded.
C. Type XHHW shall be 600-volt cross-linked polyethylene
(XLP), and type THHN/THWN shall be 600-volt as manufactured
Removal & Replacement of Telemetry Cabinets for 160519 -2 Existing SCADA Systems – Phased Projects by the Hi-Tech Company, Rome Cable Corporation, Okonite Company, or approved equal.
D. Process instrumentation wire shall be 600-volt, PVC, or polyethylene insulated, aluminum/polyester tape shielded, polyvinyl chloride jacketed, type “TC” as manufactured by the American Insulated Wire Company, Belden Corporation, “Beldfoil” 9342, or approved equal.
PART 3 - EXECUTION
3.01 INSTALLATION
A. All conductors shall be handled carefully to avoid kinks or damage to insulation.
B. Lubrication shall be used to facilitate wire pulling.
Lubricants shall be for use with the specified insulation.
C. Shielded instrumentation wire shall be installed from terminal to terminal with no splicing at any intermediate point.
D. Instrumentation cables shall be separated from power and control cables in pull boxes.
E. Shielding on instrumentation wire shall be grounded at the transmitter end only, or as directed by the supplier of the instrumentation equipment.
F. Wire and cable connections to terminals, splices, and taps shall be made with compression connectors. Connections of insulated conductors shall be insulated and covered. All connections shall be made using materials and installation methods in accordance with the instructions and recommendations of the manufacturer of the particular item of wire and cable.
G. All wire and cable shall be continuous and without splices between points of connection to equipment terminals, except a splice will be permitted by the ENGINEER if the length required between the points of connection exceeds the greatest standard shipping length available from the manufacturer specified or approved by the ENGINEER as the manufacturer of the particular item of wire and cable.
H. Steel fish tapes and/or steel pulling cables shall not be
Removal & Replacement of Telemetry Cabinets for 160519 -3 Existing SCADA Systems – Phased Projects used in PVC conduits.
3.02 TESTS
A. All 600-volt wire insulation shall be tested with a megohm meter after installation. Tests shall be made at not less than 1,000 VDC.
END OF SECTION
| 1.01 SCOPE OF WORK |
| 1.02 APPLICATIONS |
| 1.03 SUBMITTALS |
| 2.01 MATERIALS |
| 3.01 INSTALLATION |
| 3.02 TESTS |
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