Fingers into the socket to not insert.

Keywords:

ac, acdc, alternating, black, construction, danger, dc, direct, electric, electricity, energy, exclusion, finger, forbidden, generator, hand, human, identity, illustration, illustrations, isolated, law, metal, no, not, on, outlet, palm, people, plug, power, public, red, round, sign, signs, supply, symbol, threats, vector, voltage, volts, warning, white,