OFN
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- Abbreviation for optical fiber, nonconductive. Note: OFN is the designation given by the National Fire Protection Association (NFPA) to interior fiber-optic cables which contain no electrically conductive component, and which are not certified for use in plenum or riser applications. [After FAA]
ATIS - Cite This Source - This Definition - National Electric Code\® (NEC), OFC, OFCP, OFCR, OFNP, OFNR, plenum