What is the maximum allowable voltage for hand-held electric tools in wet conditions without GFCI protection?
Correct Answer
B) 12 volts
OSHA allows only 12 volts or less for hand-held electric tools in wet conditions without GFCI protection. Higher voltages require GFCI protection or assured equipment grounding conductor programs.
Why This Is the Correct Answer
OSHA regulations specifically state that hand-held electric tools used in wet conditions without GFCI protection must operate at 12 volts or less. This extremely low voltage is considered safe because it's below the threshold that can cause harmful electrical shock in wet conditions. The 12-volt limit provides an adequate safety margin to prevent electrocution when workers are exposed to moisture while using portable electric tools.
Why the Other Options Are Wrong
Option A: 50 volts
50 volts is too high for wet conditions without GFCI protection. This voltage level can still cause dangerous electrical shock, especially when combined with moisture which reduces skin resistance.
Option C: 110 volts
24 volts exceeds OSHA's safety threshold for wet conditions without GFCI protection. While 24V is considered low voltage, it can still pose a shock hazard in wet environments.
Memory Technique
Think 'Dozen volts when Damp' - 12 volts maximum for wet conditions without GFCI protection
Reference Hint
OSHA Construction Standards 29 CFR 1926.95 or electrical safety sections in construction reference materials
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