This article was posted 05/25/2007 and is most likely outdated.

Article 408 Switchboards and Panelboards - 408.4
 

 
Subject - Article 408 Switchboards and Panelboards - 408.4

May 25, 2007
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Switchboards and Panelboards

408.4 Circuit Directory or Circuit Identification

Part I. General

This section on circuit identification was rewritten to improve safety by ensuring that workers don’t have to guess which breaker operates what circuit.

All circuits and circuit modifications must be legibly identified as to their clear, evident, and specific purpose. The identification must include sufficient detail to allow each circuit to be distinguished from all others, and the identification must be on a circuit directory located on the face or inside of the door of a panelboard. See 110.22. Figure 408-1


Figure 408-1
(Click on image to enlarge)

       
 

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Comments
  • I love the education strings you are doing, but this one in particular I feel you needed more work on. Twice you mention four (4) reels of #1/0 or #1 to feed panels (brown, orange, yellow, white). You also mention the cost of reeling it on to one (1) reel. Try reeling it to one reel some time and you won't like the tangle you are left with, especially in long pulls. With all the 'grounding' education you have done, you went right through the video without the mention of the grounding conductor added to the reel lineup.

    Chuck Poler

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