All temporary receptacles must be the grounding type, and any unused openings in electrical boxes, cabinets, or fittings must be closed off to prevent accidental contact with energized parts. Receptacles shall be of the grounding type. Unless installed in a complete metallic raceway, each branch circuit shall contain a. Learn what OSHA requires for temporary wiring on construction sites, from grounding and GFCI protection to overhead clearances and employer liability. It is the voltage divided by this resistance (Ohm's Law) that determines the mo ase in body resistance to as little as 1,000 ohms. Therefore, at 120 v lts, 120 milliampe at ls that. Bare or open conductors shall be insulated from their supports. This requirement prevents arcing, sparking, or flash-over to grounded objects. Temporary wiring installed in conduit shall have. Technicians often have an “Anything Goes; It's Temporary” attitude about grounding, bonding, when dealing with the installation of temporary electrical systems and generators on construction sites, industrial facilities, special event venues, and disaster support sites. Whether you're a seasoned pro or just starting out, this comprehensive guide will give you practical.