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National Electric
Code (NEC). A consensus standard published by
the National Fire Protection Association (NFPA) and incorporated
in OSHA regulations.
NBS. National Bureau of Standards.
NEMA. National Electrical Manufacturers
Association.
Noise. Unwanted and/or unintelligible
signals picked up on a cable circuit.
Nominal O.D. The desired diameter for
a cable that is established within a +/- tolerance.
Non-Contaminating. Type of PVC jacket
material whose plasticizer will not migrate into the dielectric
of a cable and thus avoids contaminating and destroying
the dielectric.
Non-Contaminating PVC. A polyvinylchloride
formulation, which does not produce electrical contamination
through plasticizer migration.
Nylon. A group of polyamide polymers
which are used for wire and cable jacketings.
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