| National Electric Code |
National Electrical Code. A consensus standard published by the National Fire Protection Association (NFPA) and incorporated in OSHA regulations |
| NBS |
National Bureau of Standards |
| NEC |
Abbreviation for National Electrical Code |
| NEMA |
National Electrical Manufacturers Association |
| Neoprene |
Generic name for polychloroprene synthetic rubber, used for jacketing when suitably compounded |
| NFFP |
Abbreviation of National Fire Protection Association |
| Nickel Coated Copper |
Bare copper with nickel coating applied overall |
| Noise |
Unwanted and/or unintelligible signals picked up on a cable circuit |
| Non-Power Limited Fire Alarm |
UL (Underwriter's Laboratories) Standard 1425; National Electric Code (NEC) Article 760 of NFPA 70 |
| Nylon |
A group of polymers which are used for wire and cable jacketing |
| Nylon 6 |
A polymer that is typicall used over PVC insulation to improve crush resistance |