Tools are not electrically insulated unless they are manufactured according to ASTM F 1505, "Standard Specification for Insulated and Insulating Hand Tools" and must be marked on the tool with either meets ASTM F 1505 or the universal symbol of the two upsidedown triangles which overlap. The tools that meet the standard are rated at 1kv (unlike gloves and other cover up which can be obtained at various ratings).
Using anything else on energized circuits is like playing Russian Roulette, as well as violating NFPA 70E and other standards.
OSHA Professor
[This message has been edited by OSHA Professor (edited 02-09-2003).]
[This message has been edited by OSHA Professor (edited 02-09-2003).]