Was discussing the limit on the number of mated connector pairs in a power cable with Cam lock cables in mind and decided to go look up the actual code requirement for this which is in NEC 520.54(H) as of 2017.
A couple questions:
- How to count connector pairs. If I'm plugging into a company switch with installed Cam locks on one end and a dimmer rack on the other with no intermediate connector pairs is this 0, 1 or 2 connections? What if it's short tails tied into a fused disconnect with a set of cam to cam cables that then connect to the dimmer rack: 1, 2 or 3 connector pairs?
- Does this apply to only Camlock and other similar cables or would it also apply to Soca, & PBG/Edison/Stagepin cables?
Thanks
Philip
NEC 2017 520.54(H) Number of Supply Interconnections. said:Where connectors are used in a supply conductor, there shall be a maximum number of three interconnections (mated connector pairs) where the total length from the supply to switchboard does not exceed 30 m (100 ft). In cases where the total length from supply to switchboard exceeds 30 m (100 ft), one additional interconnection shall be permitted for each additional 30 m (100 ft) of supply conductor.
A couple questions:
- How to count connector pairs. If I'm plugging into a company switch with installed Cam locks on one end and a dimmer rack on the other with no intermediate connector pairs is this 0, 1 or 2 connections? What if it's short tails tied into a fused disconnect with a set of cam to cam cables that then connect to the dimmer rack: 1, 2 or 3 connector pairs?
- Does this apply to only Camlock and other similar cables or would it also apply to Soca, & PBG/Edison/Stagepin cables?
Thanks
Philip