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Fire Alarm Cable support

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eatapeach

Military
Joined
Jun 20, 2013
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84
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Does the NFPA 72 provide support distance of J hooks for Fire Alarm cable? NFPA 70 provides a support distance for everything except Fire Alarm cable. The manufacture states not to exceed 5' however most cables in the NFPA 70 require a maximum distance of 4'
 
NFPA 70 has the requirements for cable supports. The NEC does not distinguish supports of fire alarm cable vs other systems so j-hooks or whatever supports are used are regulated by NFPA 70 not NFPA 72.

Typical spacing for cable or conduit supports is 10-ft, but not everything. For instance, MC Cable whips are limited to a max of 6-ft (if I'm remembering correctly).
 
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