What is the proper use of insulated tools near live parts?

• A. Use tools with wooden handles
• B. Rely on the tool's handles for insulation
• C. Use tools with adequate insulation for the voltage, inspect for damage, avoid relying on handles for insulation, and keep tool tips away from live parts
• D. Use non-insulated tools as long as you wear gloves

Answer: (C)

Near live parts, you must use tools that are properly insulated for the voltage and in good condition. Insulated tools are designed with a non-conductive layer rated for a specific voltage, providing protection if the conductor is accidentally contacted. That protection only works, however, if the insulation is intact and undamaged. Before using them, inspect the entire tool for cracks, gouges, burns, or other damage. If you see any compromise, retire the tool. Do not rely on the handles alone for insulation; insulation can be damaged or insufficient along the length of the tool, and hidden defects can expose conductive parts. Keep the tool tips away from live parts to reduce the risk of making contact or creating an arc.

Wooden-handled tools aren’t a guaranteed substitute for proper insulated tools because they may not be rated for the voltage involved and can absorb moisture or degrade. Non-insulated tools near live parts are unsafe, even with gloves, because the tool itself can conduct electricity if it touches a live conductor. Use tools rated for the voltage, inspected for damage, and used with appropriate distance to maintain safety.