NFPA® 70

National Fire Protection Association

700.16(B) System Reliability. Emergency lighting systems shall be designed and installed so that the failure of any illumination source cannot leave in total darkness any space that requires emergency illumination. Control devices in the emergency lighting system shall be listed for use in emergency systems. Listed unit equipment in accordance with 700.12(F)(I) shall be considered as meeting the provisions of this section.

708.14 Wiring of HVAC, Fire Alarm, Security, Emergency Communications, and Signaling systems. All conductors or cables shall be installed using any of the metal wiring methods permitted by 708,10 (C) (1) and, in addition, shall comply with the following, as applicable:
- (1) All cables for fire alarm, security, signaling systems, and emergency communications shall be shielded twisted pair cables or installed to comply with the performance requirements of the system.
- (2) Shields of cables for fire alarm, security, signaling systems, and emergency communications shall be arranged in accordance with the manufacturers published installation instructions.
- (3) Optical fiber cables shall be used for connections between two or more buildings on the property and under single management.
- (4) A listed primary protector shall be provided on all communications circuits.
- (5) Conductors, for all control circuits shall use relays with contact ratings that exceed circuit voltage and current ratings in the controlled circuit.
- (6) Communications, fire alarm, and signaling circuits voltage and current ratings in the controlled circuit.
- (7) All cables for fire alarm, security, and signaling systems shall be riser-rated and shall be listed 2 hour electrical circuit protective system. Emergency communications cables shall be Type CMR-CI or shall be riser rated and shall be listed 2 hour electrical circuit protective system.
- (8) Control, monitoring, and power wiring to HVAC systems shall be a listed 2 hour electrical circuit protective system.

Installation Per NFPA Article 760:

760.24(A) General Fire alarm circuits shall be installed in a neat workmanlike manner. Cables and conductors installed exposed on the surface of ceiling and sidewalls shall be supported by the building structure in such a manner that the cable will not be damaged by normal building use. Such cables shall be supported by straps, staples, cable ties, hangers, or similar fittings designed and installed so as not to damage the cable. The installation shall also comply with 300.4(D).

760.24(B) Circuit Integrity (CI) Cable Circuit Integrity (CI) cables shall be supported at a distance not exceeding 610mm (24in). Where located within 2.1m (7ft) of the floor, as covered in 760.53(A) (1) and 760.130(1), as applicable, the cable shall be fastened in an approved manner at intervals of not more than 450mm (18in.). Cable supports and fasteners shall be steel.

[760.5] Locate cables so they do not prevent the removal of ceiling panels for access to electrical equipment.

[760.6] Install equipment and cabling in a neat and workmanlike manner and support them. If you install cables on the exposed surface of ceilings and sidewalls, support them by the structural components of the building in a manner that prevents damage from normal use. You can secure the cables to structural components by straps, staples, hangers, or similar fittings designed and installed so as not to damage the cable.

If you install cables next to framing members, you must protect them against physical damage from penetration by screws or nails by 1-1/4 in. separation from the face of the framing member or by a suitable metal plate per 300.4(D).