National Electrical Installation Standards

Standards as High as Your Own

 
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Monday, July 11, 2022

Question:

Good Morning CQD.

Thanks for everyday kick start. Can clarify the use of parking lot light per that use the pole as a raceway for different systems  (CCTV/speakers/detection/etc.) I've had some issues with 6 to 8 feet of extra cable crowding the hand hole areas making to hard to repair or troubleshoot.

John McLaughlin

A

Answer:

Good Morning John,

Thanks for the comment and question. The pole for parking lot luminaires can be used as a raceway for the conductors supplying the luminaires supported by the pole as indicated in 410.30(B). While there are no restrictions in that section from installing conductors of other systems in the same pole, there are specific requirements for separation and spacing between power conductors and conductors of other systems as mentioned in your question. Section 300.3(C)(1) has general requirements for conductors of different systems having the same voltage rating insulation. The separation requirements can be found in the NEC Article that addresses the specific system being installed. For example, for coaxial CCTV cables refer to Section 820.44. To respond to your concerns, Section 410.30(B) provides the requirements for handholes in poles that allow for access to the supply conductors for the luminaires on the pole. It would seem difficult to meet the code rules for separation of separate, different systems all together in the same handhole of the pole. We agree with your concerns that the access is impeded and possible separation requirements are not met. It would be a better situation to keep the different systems conductors and cables outside the pole or separated by suitable barriers as indicated within the article of the respective system if there is room in the pole. Hope this is useful.

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