Question

a(n) ? is an intentionally constructed, low-impedance electrically conductive path designed and intended to carry current during ground-fault conditions from the point of grounding on a wiring system to the electrical supply source, and is intended to facilitate the operation of the overcurrent protective device or ground-fault detectors on a high-impedance system.

Answer 1

A effective ground-fault current path  is an intentionally constructed, low-impedance electrically conductive path designed and intended to carry current during ground-fault conditions from the point of grounding on a wiring system to the electrical supply source.

Is earth an effective ground fault current path?

• Sticking the wire in the ground is not sufficient since the earth is not thought to be a reliable ground-fault current channel.
• The electrical system of a building or other structure is based on grounding.
• To give a fault current a secure path to travel, grounding is used.
• When installing switches, light fixtures, appliances, and receptacles, a complete ground route must be kept.
• The undesired current flow trips circuit breakers or blows fuses in a system that is correctly grounded.
• Through the use of a grounding bank, effective grounding maintains voltages within predetermined limits during a line-to-ground fault (short-circuit condition).

To learn more about ground-fault current channel  refer,

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