Subpart K (Electrical) 400-449
- Overview
- 29 CFR 1926 (Construction)
- Subpart K (Electrical) 400-449
1926.400 - Introduction
Introduces electrical safety requirements for construction sites, addressing hazards including electric shock, burns, fires, and explosions caused by electrical equipment.
1926.401 - [Reserved]
[Reserved]
1926.402 - Applicability
Defines which activities and installations are covered by the electrical safety standards, referencing applicable codes including the National Electrical Code.
1926.403 - General requirements
Establishes general requirements for electrical equipment and installations, including approval, listing, labeling, and examination requirements for safe usage.
1926.404 - Wiring Design and Protection
Specifies requirements for electrical wiring design and protection, including grounding, overcurrent protection, and ground-fault protection for construction sites.
1926.405 - Wiring Methods, Components, and Equipment for General Use
Establishes requirements for wiring methods and components, including cable assemblies, fixture wiring, boxes, fittings, and temporary wiring used in construction.
1926.406 - Specific Purpose Equipment and Installations
Addresses requirements for special electrical equipment and systems including electric signs, cranes, hoists, elevators, and other specific purpose installations.
1926.407 - Hazardous (Classified) Locations
Provides requirements for electrical equipment and wiring in hazardous locations where fire or explosion hazards may exist due to flammable gases, vapors, or combustible dusts.
1926.408 - Special Systems
Establishes special requirements for systems operating at over 600 volts, nominal, covering installation, work practices, and equipment specifications for high-voltage applications.
1926.409 - [Reserved]
[Reserved]
1926.410 - [Reserved]
[Reserved]
1926.411 - [Reserved]
[Reserved]
1926.412 - [Reserved]
[Reserved]
1926.413 - [Reserved]
[Reserved]
1926.414 - [Reserved]
[Reserved]
1926.415 - [Reserved]
[Reserved]
1926.416 - General Requirements
Establishes safety requirements for working near energized electrical circuits, including clearance distances, guarding, and de-energizing procedures to prevent shock hazards.
1926.417 - Lockout and Tagging of Circuits
Requires circuits to be de-energized before work begins, with lockout/tagout procedures to prevent accidental re-energization and ensure worker safety.
1926.418 - [Reserved]
[Reserved]
1926.419 - [Reserved]
[Reserved]
1926.420 - [Reserved]
[Reserved]
1926.421 - [Reserved]
[Reserved]
1926.422 - [Reserved]
[Reserved]
1926.423 - [Reserved]
[Reserved]
1926.424 - [Reserved]
[Reserved]
1926.425 - [Reserved]
[Reserved]
1926.426 - [Reserved]
[Reserved]
1926.427 - [Reserved]
[Reserved]
1926.428 - [Reserved]
[Reserved]
1926.429 - [Reserved]
[Reserved]
1926.430 - [Reserved]
[Reserved]
1926.431 - Maintenance of Equipment
Requires regular maintenance of electrical equipment to ensure safe operation, including testing, inspection, and documentation of maintenance activities.
1926.432 - Environmental Deterioration of Equipment
Addresses protection of electrical equipment from environmental factors that could cause deterioration, including moisture, heat, corrosives, and other damaging conditions.
1926.433 - [Reserved]
[Reserved]
1926.434 - [Reserved]
[Reserved]
1926.435 - [Reserved]
[Reserved]
1926.436 - [Reserved]
[Reserved]
1926.437 - [Reserved]
[Reserved]
1926.438 - [Reserved]
[Reserved]
1926.439 - [Reserved]
[Reserved]
1926.440 - [Reserved]
[Reserved]
1926.441 - Batteries and Battery Charging
Establishes safety requirements for battery charging installations, including ventilation, protective equipment, and precautions to prevent fires, explosions, and chemical injuries.
1926.442 - [Reserved]
[Reserved]
1926.443 - [Reserved]
[Reserved]
1926.444 - [Reserved]
[Reserved]
1926.445 - [Reserved]
[Reserved]
1926.446 - [Reserved]
[Reserved]
1926.447 - [Reserved]
[Reserved]
1926.448 - [Reserved]
[Reserved]
1926.449 - Definitions Applicable to This Subpart
Provides definitions for terms used in the electrical safety subpart, clarifying technical terminology related to electrical systems, equipment, and hazards.