19.11.2003

Checklist: Electrical Safety for Construction Workers

Construction workers can be exposed to electrical hazards in a variety of ways,
such as by performing construction tasks around power lines or working with
electrical tools and appliances. Use this checklist (excerpt) to help ensure
employees at your construction site are protected from these dangers.


- Are all employees required to report as soon as practicable any obvious
hazard to life or property observed in connection with electrical equipment or
lines?

- Are employees instructed to make preliminary inspections and/or appropriate
tests to determine what conditions exist before starting work on electrical
equipment or lines?

- When electrical equipment or lines are to be serviced, maintained or
adjusted, are necessary switches opened, locked out and tagged whenever
possible?

- Are portable electrical tools and equipment grounded or of the double
insulated type?

- Are electrical appliances such as vacuum cleaners, polishers and vending
machines grounded?

- Do extension cords being used have a grounding conductor?

- Are multiple plug adaptors prohibited?

- Are all temporary circuits protected by suitable disconnecting switches or
plug connectors at the junction with permanent wiring?

- Are exposed wiring and cords with frayed or deteriorated insulation repaired
or replaced promptly?

- Are flexible cords and cables free of splices or taps?

- Are clamps or other securing means provided on flexible cords or cables at
plugs, receptacles, tools, equipment, etc., and is the cord jacket securely
held in place? Are all cord, cable and raceway connections intact and secure?

- In wet or damp locations, are electrical tools and equipment appropriate for
the use or location or otherwise protected?

- Is the location of electrical power lines and cables (overhead, underground,
under floor, other side of walls) determined before digging, drilling or
similar work is begun?

- Are metal measuring tapes, ropes, handlines or similar devices with metallic
thread woven into the fabric prohibited where they could come in contact with
energized parts of equipment or circuit conductors?

- Is the use of metal ladders prohibited in areas where the ladder or the
person using the ladder could come in contact with energized parts of
equipment, fixtures or circuit conductors?

- Are all disconnecting switches and circuit breakers labeled to indicate their
use or equipment served?

- Are disconnecting means always opened before fuses are replaced?

- Do all interior wiring systems include provisions for grounding metal parts
of electrical raceways, equipment and enclosures?

- Are all electrical raceways and enclosures securely fastened in place? - Are
all energized parts of electrical circuits and equipment guarded against
accidental contact by approved cabinets or enclosures?

- Is sufficient access and working space provided and maintained about all
electrical equipment to permit ready and safe operations and maintenance?

- Are all unused openings (including conduit knockouts) in electrical
enclosures and fittings closed with appropriate covers, plugs or plates?

- Are electrical enclosures such as switches, receptacles and junction boxes provided
with tight-fitting covers or plates?

- Are employees who regularly work on or around energized electrical equipment
or lines instructed in cardiopulmonary resuscitation methods?

Further Information


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