# Job Hazard Analysis: Electrical panel installation URL: https://hardhatbinder.com/en/jha/electrical/panel-installation Last updated: 2026-10-23 Install a new residential or light-commercial load center or panelboard (typically 100–400A, 120/240V or 208Y/120V). Includes mounting the enclosure, cutting knockouts, setting conduit, pulling and terminating feeders and branch circuits, grounding and bonding, and energizing. Assumes work near existing energized services or tie-ins with the utility or existing building power. > 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. Plan the job and de-energize: review drawings, locate all power sources, and lock out and tag out the feeding breaker or service disconnect. - **Electric shock or arc flash from a feeder or service that is still energized or back-fed by a generator or solar system.** (High): Plan the work so all terminations are done de-energized. Do not work hot unless the competent person has a written plan for it.; Identify every source: utility service, generators, solar, UPS, and transfer switches. Open and lock each one.; Each worker puts a personal lock and a 'Do Not Operate' tag on the disconnect. Only the person who placed a lock removes it.; Test before touch: check your CAT III/IV meter on a known live source, test every conductor phase-to-phase and phase-to-ground, then recheck the meter.; Wear arc-rated clothing, a face shield, and voltage-rated gloves with leather protectors while testing for absence of voltage. - **Utility service conductors that cannot be de-energized by the crew (line side of meter or main).** (High): Schedule a utility disconnect or meter pull before tying in. Never pull a meter yourself unless the utility allows it.; Treat the line-side lugs as live at all times. Cover them with insulating barriers or rubber blankets. ### 2. Set up the work area: barricade the area, set lighting, and position the 6-ft or 8-ft fiberglass stepladder. - **Fall from a stepladder while mounting or wiring the top of the panel.** (Medium): Use a fiberglass ladder only, never aluminum, around electrical work.; Inspect the ladder before use. Open it fully and lock the spreaders on firm, level ground.; Do not stand on the top step or top cap. Keep three points of contact and carry tools in a pouch. - **Other trades walking into the work area or turning on equipment.** (Medium): Set caution tape or cones around the panel area and post a 'Danger – Electrical Work' sign.; Tell the GC and other trades which circuits are locked out and for how long. - **Trips over cords, wire reels, and debris in a dim area.** (Low): Set portable LED work lights on a GFCI-protected circuit. Route cords along walls.; Keep wire reels and boxes out of walkways. ### 3. Mount the panel enclosure: lift it into place, drill anchor holes, and fasten it to the wall or backboard. - **Back strain or crushed fingers lifting a heavy panel or panelboard (50–150 lb).** (Medium): Remove the interior and cover first to lighten the can before lifting.; Use two people or a panel lift for panelboards over 50 lb. Lift with your legs.; Wear cut-resistant gloves and keep fingers clear of the mounting edge. - **Drilling into a wall that hides live wiring, gas lines, or water pipes.** (Medium): Scan the wall with a stud finder or wire tracer before drilling. Check drawings for hidden lines.; Use a drill with a double-insulated or grounded cord on a GFCI. - **Silica dust and noise when hammer-drilling into concrete or block.** (Medium): Use a hammer drill with a dust shroud and HEPA vacuum, or a drill with built-in dust extraction.; Never dry-sweep or blow the dust with compressed air. Vacuum it with HEPA.; Wear safety glasses and earplugs while drilling. ### 4. Cut knockouts and install conduit, connectors, and fittings into the enclosure. - **Cuts from sharp metal edges, knockout slugs, and freshly cut EMT.** (Medium): Use a hydraulic or ratchet knockout punch set instead of a hammer and screwdriver.; Ream every cut end of conduit and install bushings before pulling wire.; Wear cut-resistant gloves when handling cut metal. - **Eye injury from metal chips when drilling or cutting with a band saw or reciprocating saw.** (Medium): Keep saw guards in place and secure the conduit in a vise or stand before cutting.; Wear safety glasses with side shields at all times. ### 5. Pull feeders and branch-circuit conductors into the panel. - **Strain or hand injury pulling large feeders (e.g., 4/0 aluminum or 500 kcmil copper).** (Medium): Use a cable puller or tugger for large feeders, and wire-pulling lubricant.; Assign one person to feed the reel and one to pull, and use agreed hand signals or radios.; Stand clear of the pull rope line in case it snaps. - **Fish tape contacting live parts in an existing panel or junction box.** (High): Confirm every box along the run is de-energized and locked out before fishing.; Use a non-conductive fiberglass or nylon fish tape near any equipment that could be live. ### 6. Terminate conductors, install breakers, and make grounding and bonding connections. Torque lugs to manufacturer specs. - **Shock or arc flash from contact with line-side lugs or a circuit that was not locked out.** (High): Re-verify absence of voltage at the panel before touching any conductor, after any break, and at the start of each shift.; Keep line-side lugs covered with insulating barriers until final tie-in.; Use insulated 1000V-rated screwdrivers, nut drivers, and torque tools.; Remove rings, watches, and metal jewelry. - **Loose or under-torqued connections that overheat or cause a fire later.** (Medium): Use a calibrated torque screwdriver or wrench and follow the torque values on the panel label.; Have a second worker check terminations, grounding, and neutral-ground bonding before closing the panel. - **Cuts to hands from wire strippers, utility knives, and sharp conductor ends.** (Low): Use cable strippers or a hook-blade knife and cut away from your body.; Wear cut-resistant gloves when stripping large conductors. ### 7. Inspect, close up, and energize: install the dead front, remove locks per procedure, and energize the panel. - **Arc flash when closing the main breaker or disconnect onto a fault.** (High): Before energizing, check for tools and scraps left inside, and do insulation-resistance and continuity tests.; Turn off all branch breakers first, then close the main. Turn branches on one at a time.; Install the dead front before energizing. Stand to the side of the disconnect and turn your face away when operating it.; Wear arc-rated clothing, face shield, and voltage-rated gloves while switching. - **Someone still working on a circuit when power is restored.** (High): Do a head count and verbal all-clear with every crew member before any lock is removed.; Each worker removes only their own lock and tag. ### 8. Clean up: label circuits, remove scraps, and store tools and materials. - **Slips, trips, and cuts from wire scraps, knockout slugs, and packaging.** (Low): Pick up scraps and slugs as you work. Put sharp scrap in a metal bucket.; Vacuum drill dust with a HEPA vacuum and remove tape and barricades last. - **Mislabeled circuits leading to future shock for the next worker.** (Medium): Fill out the panel directory accurately and verify each label by switching the breaker and testing the load. ## Required PPE - Safety glasses — ANSI Z87.1 with side shields at all times. - Hard hat — Class E (electrical) hard hat when overhead hazards exist or required by site. - Arc-rated clothing and face shield — Arc-rated long-sleeve shirt, pants, and arc-rated face shield and balaclava when testing, switching, or working near exposed live parts. - Voltage-rated rubber insulating gloves with leather protectors — Class 0 (1000V) minimum. Air-test before each use and check the test date. - Cut-resistant work gloves — When handling sheet metal, cut conduit, and stripping wire. Not for live work. - Safety-toe boots — Electrical hazard (EH) rated, at all times. - Hearing protection — Earplugs or earmuffs when hammer-drilling or cutting conduit. ## Training - Qualified electrician (journeyman or apprentice under direct supervision) trained to recognize and avoid electrical hazards. - Lockout/tagout procedure training, including test-before-touch with a meter. - Arc flash awareness and proper use, inspection, and care of arc-rated PPE and rubber gloves. - Ladder safety training by a competent person. - Silica exposure awareness for workers drilling into concrete or masonry. - First aid and CPR for at least one crew member on site. ## Emergency If someone is shocked: do not touch them. Shut off power at the disconnect or push them clear with a dry non-conductive object. Call 911 and give the exact site address. Start CPR if they are not breathing and use an AED if available. Cool arc-flash burns with clean water. Notify the supervisor right away. ## Official sources - [29 CFR 1926.416](https://www.ecfr.gov/current/title-29/section-1926.416) — Electrical — general requirements - [29 CFR 1926.417](https://www.ecfr.gov/current/title-29/section-1926.417) — Lockout and tagging of circuits - [29 CFR 1926.404](https://www.ecfr.gov/current/title-29/section-1926.404) — Wiring design and protection - [29 CFR 1926.405](https://www.ecfr.gov/current/title-29/section-1926.405) — Wiring methods, components, and equipment - [29 CFR 1926.1053](https://www.ecfr.gov/current/title-29/section-1926.1053) — Ladders - [29 CFR 1926.1153](https://www.ecfr.gov/current/title-29/section-1926.1153) — Respirable crystalline silica - [29 CFR 1926.102](https://www.ecfr.gov/current/title-29/section-1926.102) — Eye and face protection - [29 CFR 1926.21](https://www.ecfr.gov/current/title-29/section-1926.21) — Safety training and education --- Source: HardHat Binder, operated by Leadspire LLC. Templates to be reviewed by a competent person before use; not legal advice; not affiliated with OSHA.