What should you stand on when working with electricity?

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When working with electricity, you want a barrier between you and the ground to reduce the chance of a shock if a fault energizes a part you’re touching. An insulating surface, like a rubber mat, is designed to resist the flow of current through your body to earth, helping keep you safe by limiting the path current can take. A grounded metal plate would actually offer a direct path to earth if you or the environment become energized, increasing the risk of a shock. Wood can act as an insulator, but its effectiveness can degrade with moisture, wear, or damage, and it isn’t a reliable electrical-rated barrier. Nonconductive floor tiles may not provide the guaranteed insulation rating needed for electrical work. So choosing an insulating surface such as a rubber mat is the safest and most effective practice.