An equipment ground wire will discharge the excess voltage due to electrical surges to protect the circuit from damaging.
For a full explanation of how this works see the answers to the Related Questions shown below.
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An equipment ground wire is a safety feature in electrical systems that provides a path for safely redirecting electrical currents to the ground in the event of a fault or electrical surge. This helps prevent electric shocks and protects against fire hazards by ensuring that excess current is safely discharged.
A ground wire provides a path of least resistance for electrons to flow from an electrical system to the ground. When there is excess electrical charge or a fault in the system, the ground wire safely directs the flow of electricity into the ground, preventing electrical shocks or damage to equipment. This helps to protect people and property from potential hazards.
The green wire is designated as a ground wire. This wire in a feeder cable is bare copper and connects to the distribution panel's ground bus and at the load it is connected to the frame ground of the equipment. The UK uses the same colour for the grounding or earthing but it also has a yellow tracer on the green colouration.
A multi-wire circuit requires only one equipment grounding conductor for the entire circuit. Each branch circuit within the multi-wire setup shares this one ground wire as it connects to the main grounding point.
Jumping the ground wire involves creating a direct electrical connection between two points on the ground wire. This can be done to test an electrical circuit or to bypass a faulty ground connection. However, it is important to exercise caution when working with electricity to avoid the risk of electric shock or damage to equipment.
No, the ground and neutral wires should not be connected together at the cooktop. The ground wire from the cooktop should be connected to the ground wire in the NM-B cable, and the neutral wire from the cooktop should be connected to the neutral wire in the NM-B cable. It is important to follow proper wiring practices to ensure safety and compliance with electrical codes.