LMS Substation 3-2 Practice Test

The assertion that properly grounding a piece of equipment eliminates static electricity from friction is important to analyze, particularly in the context of electrical safety and equipment operation. The correct response highlights the distinction between static electricity and alternating current.

Grounding plays a significant role in managing charge accumulation. When equipment is grounded properly, it provides a pathway for electrical charges to dissipate safely into the ground, which can significantly reduce the risk of static electricity buildup. However, it does not completely eliminate it, especially if the conditions that promote static charge formation—such as friction—are still present. Friction can create static charge on the surfaces of materials regardless of whether they are grounded; it simply means that if a grounded object does accumulate charge through friction, that charge will have a safe path to ground, preventing the potential for harmful discharges.

Grounding does not inherently alter the nature of static electricity itself, which exists separately from alternating current and deals specifically with the accumulation of electric charge on surfaces. Therefore, while grounding is essential in managing and reducing the risks posed by static electricity, it does not eliminate the phenomenon of static electricity resulting from friction.

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