Type of Protection "N
Related Code Sections
(D) Special Occupancies, Type of Protection "n"
This protection technique shall be permitted for equipment in Class I, Zone 2 locations. Type of protection "n" is further subdivided into nA, nC ...
(N) Special Occupancies, Moisture or Physical Damage
Where outdoor or under-chassis wiring is 120 volts, nominal, or over and is exposed to moisture or physical damage, the wiring shall be protected ...
Appendix N Structural Safety
Appendix N Assistive Listening Systems Performance Standards
(N) Special Conditions, Communications Raceways
Class 2, Class 3, and Type PLTC cables shall be permitted to be installed in plenum communications raceways, riser communications raceways ...