§ 111.30-11 Deck coverings.
Non-conducting deck coverings, such as non-conducting mats or gratings, suitable for the specific switchboard voltage must be installed for personnel protection at the front and rear of the switchboard and must extend the entire length of, and be of sufficient width to suit, the operating space.
[CGD 94-108, 62 FR 23908, May 1, 1997]