|NEC Article 240 Page 2 of 8
The following definitions were added for Article 240:
Current-Limiting Overcurrent Protective Device. A current-limiting
overcurrent protective device that will reduce the fault current to a magnitude
substantially less than that obtainable in the same circuit if the
current-limiting device were replaced with a conductor.
Comment: This definition is needed in the application of the requirements for
disconnecting means for fuses [240.40] and noninterchangeable of cartridge
fuseholders [240.60(B)]. This definition was located in Section 240-11 in the
Tap Conductors. As used in this article, a tap conductor is
defined as a conductor, other than a service conductor, that has overcurrent
protection ahead of its point of supply, that exceeds the value permitted for
similar conductors that are protected as described elsewhere in this section.
Author's Comment: This definition is needed in the
application of the requirements for Branch Circuit Taps [210.19(D) and 'Feeder
Tap Conductors [240.21(B)]. The text was slightly revised to clarify that
service conductors are not to be considered tap conductors. This definition was
located in Section 240-3(e) in the 1999 NEC.
Intent: The purpose of
adding a section for definitions was to make it easier to apply the requirements
contained in Article 240.
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