For maximum safety, which tool should not be used for cutting high voltage wires?

Using non-insulated pliers for cutting high voltage wires poses a significant safety risk because these tools do not provide electrical insulation. If the wires are live, there is a danger of electrical shock or arcing, as the user could inadvertently create a path for electricity to flow through their body. Tools that are specifically designed for working with high voltage, such as insulated wire cutters, provide a protective layer that reduces the risk of electric shock, while bolt cutters and scissors, though not ideal for this purpose, still may not conduct electricity if they are not subjected to high voltage.

Therefore, it is vital to use tools with proper insulation or those specifically designed for electrical work when dealing with high voltage wires to ensure the safety of the person operating them and to follow best practices in handling electrical hazards.