26 21 01 Snow Melting cable.pdf

SNOW MELTING POWER DISTRIBUTION AND CONTROL PANEL 262100 - 1

SECTION 262001 – SNOW MELTING POWER DISTRIBUTION AND CONTROL PANEL

PART 1 - GENERAL

1.1 SUMMARY

A. This is a bidder design system.

B. Furnish and install a complete UL Listed, CSA Certified, and FM Approved system of specified heating cable, components, and controls listed specifically for keeping roof leaves, gutters, and downspouts from being clogged by ice and snow.

C. System includes, but is not limited to, all controls, signal initiating, conduit, wiring and all other equipment necessary for a complete and operating system.

PART 2 - PRODUCTS

2.1 HEATING CABLE

A. The self-regulating heating cable shall consist of two (2) 16 AWG nickel-coated copper bus wires embedded in a self-regulating polymer core that varies its power output to respond to temperature along its length, allowing the cable to be crossed over itself without overheating, to be used with wood, plastic, and asphalt building materials and to be cut-to-length in the field. The heating cable shall operate on 277 volts. The heating cable shall be IceStop GM-1XT or GM-2XT cable manufactured by Raychem

Corporation.

B. Components: All heating cable components shall be UL Listed, CSA Certified, or FM

Approved for use as part of the system to provide roof and gutter de-icing. Component enclosures shall meet NEMA 4X requirements to prevent water ingress and corrosion.

C. Attachment: The system will be supplied complete with attachment clips for all roof surfaces and valleys, as well as downspout hangers.

PART 3 - EXECUTION

3.1 PERFORMANCE

A. Power Output: For sufficient power for roof and gutter de-icing and energy conservation, the self-regulating heating cable shall have a nominal power output of

12 watts per foot in snow and ice and 5 watts per foot in air, per IEEE 515.1-1995, Section 4.2.6. Products that do not meet this requirement are not acceptable.

B. Mechanical Toughness: To provide superior abrasion resistance and mechanical impact resistance, the heating-cable outer jacket shall be an abrasion-resistant fluoropolymer.

The cable shall have a minimum impact resistance of 10 ft-lb at 0 ° C installation temperature per IEEE 515-1997, and a crush resistance of 2000 lb per UL1588-1993.

SNOW MELTING POWER DISTRIBUTION AND CONTROL PANEL 262100 - 2

C. UV Stability: Cable and components shall be qualified for prolonged exposure to the sun per IEEE 515.1-1995, Section 4.3.2, and UL1588-1993.

D. Submersion in Water: The cable and components shall be qualified to withstand continuous submersion in water for 2000 hours per IEEE 515.1-1995, Section

4.3.1.,The cable and components shall be qualified to withstand continuous submersion in water for 2000 hours per IEEE 515.1-1995, Section 4.3.1.,The cable and components shall be qualified to withstand continuous submersion in water for 2000 hours per IEEE 515.1-1995, Section 4.3.1.,The cable and components shall be qualified to withstand continuous submersion in water for 2000 hours per IEEE 515.1-1995, Section 4.3.1.

3.2 INSTALLATION

A. The heating cable shall be laid in gutters; shall be suspended in downspouts either as a loop or a single length and held in place by a downspout hanger; and shall be attached to the roof using the appropriate roof clip.

B. The heating cable shall be protected from damage and installed according to manufacturer's instructions.

C. Testing: After installation, the dielectric jacket's insulation resistance and continuity shall be tested with a 2500 Vdc megohmmeter. Insulation resistance from the conductors to the shield shall be greater than 1000 megohms. Condensed CSI

Specification.

D. The system will have a complete 10-year warranty.

END OF SECTION 262100