What type of measuring tools should not be used near energized equipment?

Metal measuring tapes should not be used near energized equipment due to the conductive nature of the material. Metal can conduct electricity, posing a significant risk of electric shock if contact is made with energized components. When working in environments where high voltages are present, using non-conductive materials becomes crucial for safety.

In contrast, plastic rulers, wooden straightedges, and carbon fiber gauges are typically safe choices around energized equipment, as they do not conduct electricity. These materials significantly reduce the risk of accidental electrical conduction and enhance the safety of personnel working in close proximity to energized circuits. Thus, opting for non-conductive measuring tools is a key practice in ensuring safety while working with electricity.