What is an important safety step when working with electric systems?

An important safety step when working with electric systems involves multiple precautionary measures to protect oneself from potential hazards. Wearing gloves is crucial because they provide an additional layer of insulation against electrical shock, especially when dealing with live circuits. Similarly, keeping tools away from water is essential since water is a conductor of electricity, and having wet tools can significantly increase the risk of accidental shocks.

By combining these two precautions—wearing gloves and ensuring that tools remain dry—you greatly reduce the risk of injury while working in environments where electrical currents are present. This dual approach reflects a comprehensive safety mindset that is necessary in handling any electrical work, ensuring that safety practices are not only adhered to but are also effectively reinforced through multiple strategies.

The other option of only testing equipment before use is certainly an essential practice, but it does not encompass the broader set of safety measures related to personal protective equipment and environmental precautions as seen in the correct choice.