What is an important safety procedure before working on electrical systems?

Wearing insulated gloves is a critical safety procedure before working on electrical systems because they provide essential protection against electrical shock. Insulated gloves are designed to prevent electrical currents from passing through the body, thereby reducing the risk of serious injury or fatality when handling live wires or components. This is particularly important when working on systems where accidental contact with electrical circuits can occur.

While turning on the ignition could be relevant in different contexts, it does not pertain to safety when working on electrical systems, especially in terms of ensuring that the area is safe from electrical hazards. Disconnecting the fuel pump is more aligned with safety in fuel systems rather than electrical systems. Checking for leaks can be crucial in different scenarios, such as fluid or gas systems, but it does not specifically address the electrical safety concerns that arise when working with electrical components. Thus, the priority for electrical work should be on personal protective equipment, with insulated gloves being an essential first line of defense.