| 单词 | OFN (Optical Fiber, Nonconductive) |
| 释义 | OFN (Optical Fiber, Nonconductive) The designation by the National Fire Protection Association (NFPA) for fiber optic cables that contain no electrically conductive components and are not certified for use in interior plenum or riser applications. See also cable, conductor, optical fiber, plenum cable, and riser cable. |
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