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In the visible spectrum or the infrared? Either way, if your earth wire is glowing you have a problem. Your earth wire is not intended as a current carrying wire. If the wire is loaded to the point that it glows then your circuit/breaker is not wired correctly and the earth wire is being used as an unintended path and is a hazard. Earth wires are not sized properly to carry current.
In residential wiring applications the most used is 14 gauge wire for light switches as long as the circuit breaker or the fuse is 15A. If your lighting circuit is on a 20A fuse/circuit breaker then you need to use 12 gauge wire
Wire carrying negative and positive charges in a closed circuit. It doesnt have earth.
The ground conductor is colored green to be identifyable anywhere in the circuit
In a lighting circuit an open circuit will turn off the light.
A GFCI can not be used on a three wire branch circuit. It has to be on a single two wire circuit.
A ground (earth) wire is needed in not just a light circuit but in all circuits that are now installed.
If they are on the same circuit you only need 1 neutral wire in the circuit.
Earth wire is meant to protect the user in case there is earth fault in the device or circuit. Only earth wire alone is not sufficient. It needs to be provided with suitable circuit breaker that breaks the circuit automatically.
When one wire or terminal is not connected to a light bulb, it is not possible for electricity to complete the circuit. When a circuit is not completed, the bulb will not light. An off switch, for example, breaks the circuit.
In the visible spectrum or the infrared? Either way, if your earth wire is glowing you have a problem. Your earth wire is not intended as a current carrying wire. If the wire is loaded to the point that it glows then your circuit/breaker is not wired correctly and the earth wire is being used as an unintended path and is a hazard. Earth wires are not sized properly to carry current.
Yes, a loose neutral wire can effect the operation of Earth Leakage Circuit Breaker.
Usually 15A or 20A, but it depends on the wire used.
A lighting circuit would be a parallel circuit.
Mood lighting in the car can be done by connecting LED lights to the rest of the battery circuit. Disconnect the negative cable and connect the LED light connector to the circuit that leads to the rear lights.
Cannot answer this question. Will need to know the voltage and amperage of the circuit. Also need to know the application i.e. is it a lighting circuit or a motor circuit?
In residential wiring applications the most used is 14 gauge wire for light switches as long as the circuit breaker or the fuse is 15A. If your lighting circuit is on a 20A fuse/circuit breaker then you need to use 12 gauge wire