Just install the new fixture with black to black, white to white, and cap off the ground wire on the new fixture. It'll be fine.
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.
The minimum size equipment grounding conductor required by the NEC for a branch circuit protected by a 50-ampere rated circuit breaker is 10 AWG copper or 8 AWG aluminum.
Yes, the grounding of equipment is for safety reasons not operational reasons. By grounding equipment, the conductor, if the equipment develops a short circuit to ground, supplies a low impedance return to the distribution panel where is is sensed by the circuits breaker. Once the breaker senses this short circuit current it will trip the circuit open.
when you say "mega" I am asuming you mean meggar-ohmmeternot the lottery This instrument is not appropriate to test for good grounding Good grounding requires LOW resistanceA Meggar is used for measuring for HIGH resistances You need a MICRO-ohmmeter or ground resistance meter A company called AEMC makes nice ground testers
A #14 wire will do fine for grounding a 20 amp device. That is the size of the ground wire in a 2 conductor # 12 wire building cable.
An electric circuit grounding.
It is where a point in a circuit is at zero voltage.
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.
The ground wire in an electrical circuit is connected to the grounding terminal of an electrical outlet or to the grounding bar in an electrical panel. It is designed to provide a safe path for excess electrical current to flow to the earth in case of a fault or surge in the circuit.
The minimum size equipment grounding conductor required by the NEC for a branch circuit protected by a 50-ampere rated circuit breaker is 10 AWG copper or 8 AWG aluminum.
Parallel Circuit
"Grounding a connector" means you join a connector in a circuit to another point in the circuit that is definitely at ground potential. This is done mainly when testing a circuit, to be sure that a particular point in that circuit really is at ground potential if you are not certain that it is already. Alternatively, you could be doing a test to temporarily ground a connector that is not normally at ground potential, to see what effect doing the test has on the behavior of the circuit.
Removing a bulb - or opening the switch - breaks the flow of current in a series circuit.
To properly install a ground wire in your electrical system, follow these steps: Turn off the power to the circuit you are working on. Identify the grounding point in your electrical panel. Connect one end of the ground wire to the grounding point. Run the ground wire along the path of the circuit, securing it with clamps. Connect the other end of the ground wire to the grounding terminal of the device you are installing. Turn the power back on and test the circuit to ensure proper grounding.
Yes, the grounding of equipment is for safety reasons not operational reasons. By grounding equipment, the conductor, if the equipment develops a short circuit to ground, supplies a low impedance return to the distribution panel where is is sensed by the circuits breaker. Once the breaker senses this short circuit current it will trip the circuit open.
It could be that the bathroom circuit simply has more on it so the hair dryer is pushing the circuit beyond its limit. In a typical bathroom, properly wired, this would not be the case. But if there are lights on the circuit other than in the bathroom (it would take a lot of lights for this to be a problem), or if there is a source of heat in the bathroom that is on, this may be where your problem is.
when you say "mega" I am asuming you mean meggar-ohmmeternot the lottery This instrument is not appropriate to test for good grounding Good grounding requires LOW resistanceA Meggar is used for measuring for HIGH resistances You need a MICRO-ohmmeter or ground resistance meter A company called AEMC makes nice ground testers