Ax14728g.aw - Home | US Forest Service

2 wire ungrounded or 3 wire grounded, check with outlet tester for open-ground and reverse polarity. Check with ground loop impedance test if available, maximum 1.25 ohms in ground circuit for 20A circuit. If 2 wire outlets, use 3 to 2 prong cheater, touch ground wire to … ................
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