Reference

Every OSHA extension cord requirement with its exact citation: the three-wire hard-usage rule of 1926.405(a)(2)(ii)(J), GFCI protection vs the assured equipment grounding conductor program, the splice and repair restrictions, strain relief, and routing. Closes with the daily two-minute inspection routine that satisfies all of them.

The extension cord gauge chart for jobsite loads: which AWG carries which amp draw at 25, 50, 100 and 150 feet, built on cord-set ratings and a 5% voltage-drop budget you can verify from the formula shown. Covers 12/3 vs 14/3, SJTW jacket codes, OSHA's three-wire hard-usage rule, and the troubleshooting section for a cord that runs hot.