- (a) Pull boxes shall be made of material inherently resistant to corrosion or shall be suitably protected, both internally and externally, by enameling, galvanizing, plating, or other equivalent means.
- (b) Suitable bushings, shields, or fittings having smooth rounded edges shall be provided where conductors pass through partitions and at other locations where necessary.
- (c) Boxes shall provide a complete enclosure for the contained conductors or cables.
- (d) Pull boxes shall be so installed that the wiring is accessible without removing any part of the building. Working space shall be provided in accordance with Article 35.
- (e) Pull boxes shall be of a type approved for the respective location in which they are installed.
- (f) Boxes shall be effectively closed by suitable covers secured against unauthorized entry. Underground box covers that weigh over 100 pounds (45.4 kg) shall be considered secured against unauthorized entry.
- (g) Pull boxes and their covers shall be able to withstand the loading to which they may be subjected.
- (h) Pull boxes shall be securely fastened or set in place.
- (i) Covers for boxes shall be labeled “HIGH VOLTAGE.” The label shall be on the outside of the box cover and readily visible. Letter shall be block letters at least ½ inch in height.
- (j) For grounding, see Article 6.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
History
1. Editorial correction filed 11-2-83 (Register 83, No. 45).
2. Amendment of section and Note filed 4-1-2009; operative 4-1-2009. Submitted to OAL for printing only pursuant to Labor Code section 142.3 (Register 2009, No. 14).