Job Hazard Analysis: Light fixture installation

A general example for this task. Your JHA should reflect your crew, equipment and site — review it with a competent person before work starts.

Steps, hazards and controls

1. 1. Review the job, stage fixtures and materials, and inspect ladders and tools.

   • Back strain lifting boxed fixtures (2x4 troffers can be 20–30 lb and awkward).Low
     • Use a cart or dolly to move multiple boxes.
     • Stage fixtures close to each install location to cut down on carrying.
     • Lift with your legs and get a second person for long or bulky fixtures.
   • Damaged ladder, cords, or tools failing during use.Medium
     • Inspect each ladder before use for cracked rails, loose rungs, missing feet, and a working spreader lock.
     • Tag damaged ladders or tools 'Do Not Use' and remove them from the site.
     • Check cord insulation and plug on drills and extension cords; use GFCI protection for all cord-and-plug tools.

2. 2. De-energize the circuit, apply lockout/tagout, and verify it is dead.

   • Electric shock from a live circuit: wrong breaker, mislabeled panel, shared neutral, or multiple circuits in one box.High
     • Never work the fixture hot. Turn off the breaker and lock it with your personal lock and tag.
     • Test your voltage tester on a known live source, test every conductor in the box, then test the tester again (live-dead-live).
     • Look for extra circuits, switch legs, and shared neutrals in the box; lock out every circuit feeding it.
     • Treat 277V lighting as high risk: only qualified electricians work on it.
   • Arc flash or shock while working in an energized panel to find the breaker.Medium
     • Do not remove the panel dead-front just to find a breaker; use the directory and a circuit tracer.
     • Stand to the side of the panel when operating breakers and keep the panel cover closed.
     • Wear safety glasses and keep your face out of line with the breaker.

3. 3. Set up the fiberglass stepladder at the fixture location.

   • Fall from the ladder from overreaching, standing on the top cap or top step, or ladder tipping.High
     • Pick a ladder tall enough that you work below the second step from the top; get a taller ladder or rolling scaffold if not.
     • Open the stepladder fully, lock the spreaders, and set it on firm, level floor.
     • Keep your belt buckle between the rails and move the ladder instead of reaching.
     • Keep 3 points of contact climbing and use a tool pouch or hoist line, not your hands, to carry tools.
   • People or carts bumping the ladder in hallways, doorways, or occupied areas.Medium
     • Block off the area under the ladder with cones or caution tape.
     • Lock or guard doors that open toward the ladder.
     • Use a spotter in busy traffic areas.

4. 4. Remove the old fixture and prepare the box, ceiling grid, or mounting location.

   • Dust, debris, and ceiling tile particles falling into eyes when opening ceilings or drilling overhead.Medium
     • Use a drill dust cup or shroud when drilling into drywall or tablaroca overhead.
     • Wear ANSI Z87.1 safety glasses with side shields; add goggles for heavy overhead debris.
     • Wear an N95 dust mask for dusty ceilings, voluntary use unless the competent person requires more.
   • Old fixture dropping or breaking fluorescent tubes, causing cuts and mercury exposure.Medium
     • Remove tubes and lenses first and hand them down; do not carry them up or down the ladder.
     • Support the old fixture before cutting the last screw or wire.
     • Store old tubes intact in a marked box for recycling; clean broken tubes with a damp paper towel and bag it, do not vacuum.
     • Wear cut-resistant gloves when handling sheet-metal housings.
   • Hidden live wiring or other circuits above the ceiling.Medium
     • Use a non-contact voltage tester on any cable or box above the ceiling before touching it.
     • Do not cut or move cables you did not lock out.

5. 5. Mount the bracket and lift the new fixture into place.

   • Losing balance or dropping the fixture while holding it overhead on the ladder.High
     • Use two people for fixtures over 20 lb or wider than 2 ft: one on the ladder, one handing up.
     • Use the fixture's safety hook or hanger to hold it while you wire it.
     • Hang troffers with support wires to the structure as the manufacturer requires.
     • Keep the area below clear of people.
   • Cuts and puncture wounds from sheet-metal edges, screws, and power drivers.Low
     • Use the right bit and keep your free hand away from the driving path.
     • Wear cut-resistant gloves when handling housings and brackets.

6. 6. Make the wire connections and ground the fixture.

   • Shock if the circuit was re-energized by someone else or a second source is present.High
     • Keep your lock and tag on the breaker until the connections are done; only you remove your lock.
     • Re-test the conductors if you left the work and came back.
     • Use insulated screwdrivers and strippers in good condition.
   • Loose connections or a missing ground leaving the fixture housing energized later.Medium
     • Use listed wire connectors sized for the wire count and gauge; tug-test every splice.
     • Connect the equipment ground to the fixture's green screw or ground lead every time.
     • Keep wires from being pinched by the canopy or housing.

7. 7. Remove lockout, restore power, and test the fixture.

   • Shock or arc if someone is still working on the circuit when it is re-energized.High
     • Verify everyone is clear and all locks on that circuit belong to workers who are done.
     • Announce out loud before turning the breaker back on.
     • Stand to the side of the panel when closing the breaker.
   • Fixture failure or short (sparks, tripped breaker) at first power-up.Low
     • If the breaker trips, lock it out again and find the fault before resetting it.
     • Stay off the ladder and away from the fixture during the first power-up.

8. 8. Clean up packaging, old fixtures, and debris, and put away ladders and tools.

   • Trips on cardboard, wire scraps, and cords in walkways.Low
     • Break down boxes and remove packaging as you go, not just at the end of the day.
     • Pick up wire scraps and coil extension cords out of walkways.
   • Cuts from broken lamps and sharp metal in trash.Low
     • Put old fluorescent tubes and ballasts in marked recycling containers, separate from regular trash.
     • Wear cut-resistant gloves when handling scrap metal and broken glass.