- Part Number:1926
- Part Number Title:Safety and Health Regulations for Construction
- Subpart:1926 Subpart K
- Subpart Title:Electrical
- Standard Number:
- Title:Wiring design and protection.
- GPO Source:
Ground-fault circuit interrupters. All 120-volt, single-phase, 15- and 20-ampere receptacle outlets on construction sites, which are not a part of the permanent wiring of the building or structure and which are in use by employees, shall have approved ground-fault circuit interrupters for personnel protection. Receptacles on a two-wire, single-phase portable or vehicle-mounted generator rated not more than 5kW, where the circuit conductors of the generator are insulated from the generator frame and all other grounded surfaces, need not be protected with ground-fault circuit interrupters.
|Circuit rating amperes||Receptacle rating amperes|
|15||Not over 15.|
|20||15 or 20.|
|40||40 or 50.|
If used as switches in 120-volt, fluorescent lighting circuits, circuit breakers shall be marked "SWD."
[54 FR 24334, June 7, 1989; 61 FR 5507, Feb. 13, 1996]