Safety checklist — Electrical
Electrical installation and wiring. Based on Québec's Construction Safety Code (CSTC) and CNESST standards.
Before work
11 items- ✓
PPE worn: hard hat, insulated gloves, safety glasses, dielectric boots if required
- ✓
Circuits de-energized and absence of energy verified (CSTC 2.20)Critical
ℹ️ 2.20.7: verify lockout. A multimeter is not named in the Code.
- ✓
Lockout performed — individual lock with unique key (CSTC 2.20)Critical
ℹ️ Construction site: CSTC 2.20 — unique-key lock, one per person, written procedure. RSST 188 applies to establishments.
- ✓
Lockout tag posted at panel
- ✓
5.2.1 approach distances if section V applies (3 m if < 125 kV)Critical
ℹ️ CSTC 5.1.2: section V does not apply to, among others, service drops < 750 V or work near an isolated ≤ 750 V line.
- ✓
Insulated tools in good condition
- ✓
Verify absence of voltage before each intervention
- ✓
Conductors grounded if required
- ✓
No live work unless CSA Z462 procedure approvedCritical
ℹ️ CSA Z462 standard — arc flash risk analysis required
- ✓
Temporary cables protected from crushing and moisture
- ✓
Arc flash: flame-resistant clothing if working near energized parts
After work
4 items- ✓
Lockout removed per procedure — only installer removes their lock
- ✓
Continuity and insulation tests performed
- ✓
Panels closed and labeled
- ✓
Cable offcuts and waste sorted
15 verification items — use this checklist on-site with the app
Use on-site — freePDF reports, history and team management in the app
For information only — this is not legal advice. OK Sécurité is an independent company with no affiliation to the CNESST: we are not mandated, endorsed or certified by it. Completing a checklist here does not by itself establish your compliance — your exact obligations depend on your job site and your prevention program. Where there is any discrepancy, the official text published by Légis Québec or the CNESST prevails.
More checklists — Mechanical & Electrical
More safety checklists
Related official rule
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Risks and prevention — Electrical
Electrocution and arc flash are among the most common site fatalities. CSTC 2.11 and 2.20, plus the Québec Electrical Code. “De-energized unless a greater hazard” is not a free-standing CSTC sentence.
On a construction site, lockout follows CSTC 2.20 (unique-key lock, one per person). Workers must verify zero energy using an appropriate tester before touching any conductor. Arc-flash PPE (flame-resistant clothing, face shield) follows the Electrical Code and the risk assessment — not a named CSTC article here.
Temporary site power distribution must be protected by GFCIs and inspected regularly. Damaged extension cords must be immediately removed from service.
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