Insulated hand tools

Insulated hand tools are voltage-rated tools such as screwdrivers, sockets, ratchets and torque wrenches. Workers use them when a tool could accidentally touch exposed energized conductors or circuit parts. Battery storage procedures require insulated tooling for live circuits and anywhere inside the storage enclosure, meeting ASTM F1505-01 and IEC 900 (IEC 60900), to comply with OSHA 1910.333(c)(2) and NFPA 70E. Each tool must be rated for the voltage it is used on. Some work instructions call for tools insulated for 1000 V. Inspect insulated tools before every use for damaged insulation or worn working ends, such as a damaged screwdriver tip, and protect the insulation from damage. To remove or install a fuse while its terminals are energized, use fuse-handling equipment insulated for the circuit voltage. A typical required insulated tool kit for electrical connections inside energy storage segments includes a torque wrench, ratchet, hex bit sockets, extensions, insulated screwdrivers, a 1500 V multimeter and a proving unit.

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• sentence 1: support check: partial - Use when tools might accidentally contact exposed energized parts is stated, and Table 7 lists torque wrench, ratchet, sockets and screwdrivers as insulated tools, but no passage defines insulated hand tools as voltage-rated tools of those types. -->