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For stairwells and other areas of safe refuge, pressurization fans and smoke dampers provide a positive pressure to maintain a smoke free area of safe refuge with clean air for breathing, and visibility for egress. |
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Wiring Systems
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MC
Raychem® MC power cable is listed by UL as 2-hour fire-rated when installed in accordance with Tyco Thermal Controls installation procedures and system listings. This cable meets the requirements of an “Electrical Circuit Protective System” as referred to in Articles 695 and 700 of the National Electrical Code (NEC).
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RHW
Simply installed in conduit, this polymer insulated wiring cable is a premier 2-hour fire rated “Electrical Circuit Protective System”. As such, it meets the requirements of Articles 695 and 700 of the National Electrical Code (NEC), and exceeds the requirements of the Canadian Building Code.
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System 1850
System 1850 Mineral Insulated (MI) wiring cable for critical and essential circuit protection with zero smoke generation, zero fuel contribution and zero flame spread.
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