Construction Checklist
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Updated 2026-07-07

Extension Cord Safety Checklist

Use this extension cord safety checklist to inspect cords, plugs, connections, routing, and temporary power setups before work begins.

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Extension Cord Safety Checklist

Extension Cord Safety Checklist

Quick Summary

An extension cord safety checklist helps crews identify damaged cords, unsafe connections, and temporary power hazards before work starts. Regular inspections can reduce shock hazards, equipment damage, tripping risks, and jobsite downtime. This checklist is useful for contractors, foremen, crew leaders, maintenance personnel, and anyone using temporary power on a jobsite.

When to Use This Checklist

  • Before starting work each day.
  • When setting up temporary power.
  • Before using power tools with extension cords.
  • After cords have been transported or stored.
  • Following severe weather or wet conditions.
  • After cords have been damaged or run over.
  • During routine jobsite safety inspections.

Before You Start

  • Identify all extension cords that will be used.
  • Verify cords are rated for the intended environment and load.
  • Inspect work areas where cords will be routed.
  • Confirm power sources are suitable for the equipment being used.
  • Remove damaged cords from storage before setup.
  • Verify required adapters and connection devices are available.
  • Review site-specific temporary power requirements.

Safety Checks

  • Inspect cord insulation for cuts, cracks, or exposed conductors.
  • Verify plugs are intact and undamaged.
  • Check connections for tight, secure fits.
  • Keep cords away from standing water and wet areas when possible.
  • Verify cords are protected from vehicle traffic and equipment movement.
  • Identify and correct tripping hazards created by cord placement.
  • Confirm temporary power setups are appropriate for the equipment load.

Tools, Equipment, and Materials

  • Extension cords of appropriate length and rating.
  • Power tools and equipment being connected.
  • Temporary power distribution equipment.
  • Cord covers or protection devices.
  • Inspection tags or identification labels.
  • Temporary power inspection records.
  • Required personal protective equipment.

Extension Cord Safety Checklist

  • Inspect the entire cord length for damage.
  • Check plugs for bent, loose, or missing prongs.
  • Verify strain reliefs are intact at both ends.
  • Confirm cord jackets are free from tape repairs or exposed wiring.
  • Use cords rated for outdoor conditions when required.
  • Select the proper cord gauge for the equipment load.
  • Route cords away from walkways when practical.
  • Protect cords crossing traffic areas with approved covers or barriers.
  • Keep cords clear of sharp edges and pinch points.
  • Avoid routing cords through doors, windows, or openings that could damage them.
  • Verify connections remain off the ground when practical.
  • Ensure cords are fully extended when powering high-load equipment.
  • Check cords periodically during use for heat buildup or damage.
  • Remove damaged extension cords from service immediately.

Documentation Needed

  • Extension cord inspection logs.
  • Temporary power inspection reports.
  • Cord replacement records.
  • Equipment connection records when required.
  • Corrective action documentation.
  • Jobsite safety inspection reports.
  • Tool and equipment usage records.

Common Mistakes to Avoid

  • Using cords with damaged insulation or plugs.
  • Selecting undersized cords for high-load equipment.
  • Leaving cords where vehicles or equipment can run over them.
  • Creating trip hazards across walkways.
  • Ignoring heat buildup during use.
  • Continuing to use cords after damage is discovered.

End-of-Day / Final Review

  • All extension cords have been inspected after use.
  • Damaged cords have been removed from service.
  • Temporary power setups have been disconnected as needed.
  • Cords have been properly coiled and stored.
  • Inspection findings have been documented.
  • Replacement needs have been reported or scheduled.
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