CommScope ConQuest Conduit Construction - Manual (Page 75)

National Electric Code (NEC) Standards
The NEC typically identifies the construction techniques and materials necessary in building wiring requirements,
(i.e., inside plant construction, of fiber optic, coaxial cable, or twisted pair systems). The NEC has been developed
by the National Fire Protection Association’s (NFPA’s) National Electric Code committee. Committee members are
professionals from the electrical industry. The NEC addresses safety from fire and electrocution. The NEC has been
adopted by the American National Standards Institute (ANSI).
Copies of NEC standards can be obtained from:
National Fire Protection Association
1 Batterymarch Park/P.O. Box 9146
Quincy, MA 02269-3555
(800) 344-3555
website: www.nfpa.org
NEC Article 830
Network-Powered Broadband Communication Systems have recently been added to the National Electric Code
(NEC). Higher voltages will be used to power Network Interface Units (NIU) for Broadband systems, so it has
become more important to safeguard the general public from the hazards posed. Drop cables posses the greatest
hazard of exposure to the public in network-powered broadband systems.
As of January 1, 2000, all new installations of
broadband cable carrying low and medium voltages
must meet NEC Article 830. Low voltage is defined as
0 to 100 volts and medium voltage covers cables up to
150 volts.
Under Article 830, the depth of burial has been revised
for direct buried cable, conduit or other raceways.
The adjacent chart describes the minimum cover
requirements prescribed by the NEC.
Appendix 8.18
Installation Safety