Cabinets, Boxes, and Fittings

Conductors entering cabinets, cutout boxes, and fittings must be protected from abrasion. Openings, both used and unused, through which conductors enter must be effectively closed.

Where cable is used, each cable must be secured to the cabinet, cutout box, or meter socket enclosure. Where cable with an entirely nonmetallic sheath enters the top of a surface-mounted enclosure through one or more nonflexible raceways of a certain size, the cable need not be secured to the cabinet, box, or enclosure if conditions set out in 1910.305 are met.

All pull boxes, junction boxes, and fittings must be provided with covers identified for the purpose. If metal covers are used, they must be grounded. In completed installations, each outlet box must have a cover, faceplate, or fixture canopy.

Pullboxes and junction boxes for systems of more than 600 volts nominal must provide a complete enclosure for the contained conductors or cables. Boxes must be closed by suitable covers securely fastened in place. Covers for boxes must be permanently marked "HIGH VOLTAGE." The marking must be on the outside of the box cover and must be readily visible and legible.

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