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29 CFR 1926.405: Job-site wiring

Subpart K—Electrical · official heading: Wiring methods, components, and equipment for general use

How wiring is installed on construction sites: covers on boxes, strain relief on cords, protection for flexible cords and temporary lighting.

7,118citations since 2015
5,408employers cited
59%serious, willful or repeat
$0median penalty per item

OSHA has cited 29 CFR 1926.405 7,118 times since 2015, against 5,408 employers. Penalties on these items add up to $6,218,692 at their current amounts.

Citations per year

The parts of the rule cited most

1926.405(g)(2)(iv) · 2,414 citations

(iv) Strain relief. Flexible cords shall be connected to devices and fittings so that strain relief is provided which will prevent pull from being directly transmitted to joints or terminal screws.

1926.405(b)(2) · 921 citations

(2) Covers and canopies. All pull boxes, junction boxes, and fittings shall be provided with covers. If metal covers are used, they shall be grounded. In energized installations each outlet box shall have a cover, faceplate, or fixture canopy. Covers of outlet boxes having holes through which flexible cord pendants pass shall be provided with bushings designed for the purpose or shall have smooth, well-rounded surfaces on which the cords may bear.

1926.405(a)(2)(iii) · 775 citations

(iii) Guarding. For temporary wiring over 600 volts, nominal, fencing, barriers, or other effective means shall be provided to prevent access of other than authorized and qualified personnel.

1926.405(b)(1) · 538 citations

(b) Cabinets, boxes, and fittings—(1) Conductors entering boxes, cabinets, or fittings. Conductors entering boxes, cabinets, or fittings shall be protected from abrasion, and openings through which conductors enter shall be effectively closed. Unused openings in cabinets, boxes, and fittings shall also be effectively closed.

1926.405(g)(2)(iii) · 463 citations

(iii) Splices. Flexible cords shall be used only in continuous lengths without splice or tap. Hard service flexible cords No. 12 or larger may be repaired if spliced so that the splice retains the insulation, outer sheath properties, and usage characteristics of the cord being spliced.

1926.405(j)(1)(i) · 349 citations

(j) Equipment for general use—(1) Lighting fixtures, lampholders, lamps, and receptacles—(i) Live parts. Fixtures, lampholders, lamps, rosettes, and receptacles shall have no live parts normally exposed to employee contact. However, rosettes and cleat-type lampholders and receptacles located at least 8 feet (2.44 m) above the floor may have exposed parts.

1926.405(a)(2)(iie) · 340 citations

(E) All lamps for general illumination shall be protected from accidental contact or breakage. Metal-case sockets shall be grounded.

1926.405(d) · 180 citations

(d) Switchboards and panelboards. Switchboards that have any exposed live parts shall be located in permanently dry locations and accessible only to qualified persons. Panelboards shall be mounted in cabinets, cutout boxes, or enclosures designed for the purpose and shall be dead front. However, panelboards other than the dead front externally-operable type are permitted where accessible only to qualified persons. Exposed blades of knife switches shall be dead when open.

Industries cited most

  • Construction 6,907
  • Administrative and Support and Waste Management and Remediation Services 41
  • Manufacturing 39
  • Real Estate and Rental and Leasing 23
  • Accommodation and Food Services 20
  • Utilities 18

States cited most

Recently cited employers