Scout's Toolbox Talks

GFCIs (Ground-Fault Circuit Interrupters) are life-saving devices designed to cut off electricity the moment a ground fault is detected. These faults occur when electrical current takes an unintended path—like through your body.

Why It Matters:

On construction sites, workers often use electrical tools in wet, muddy, or damp environments. Without GFCI protection, a damaged cord or tool can turn deadly in seconds. GFCIs protect against electrocution by detecting leakage current as small as 4 to 6 milliamps and shutting off power within milliseconds.

Key Points:

• GFCIs must be used for all 120-volt, single-phase, 15- and 20-amp receptacle outlets on construction sites that are not part of permanent wiring.
• They are required by OSHA on all temporary power circuits and when tools are used in wet or conductive locations.
• Regular testing of GFCIs is essential—a faulty GFCI is no better than no GFCI.
• Use portable GFCIs if your extension cords or tools are connected to non-GFCI outlets.

✅ GFCIs are your first and fastest line of defense against fatal shocks.

Ask the Crew:

• Are all temporary power sources protected by GFCIs?
• When was the last time we tested our GFCIs?

‍