When you have a neutral open to a certain device, there is a white cable disconnection. An open neutral appears on the panel when there is a neutral cable break that connects the panel to the line transformer. The main effect is that the house lights weaken and become brighter for no apparent reason.

If you shorten the neutral line, you will open the weakest link. The weakest link is usually a switch or fuse, if the electrician who coupled it was competent. If a component in the short circuit path had less than one current rating than the switch or fuse, it will be fried.

This happens when the hot and neutral wires are revolted to an output, or up an output. Inverse polarità creates a potential risk of shock, but its usually an easy repair. one of these wires is connected to the earth, or to the earth, so that this wire is called the conductor to the earth.

So when the switch stops the active cable is disconnected from the device. Changing the cables so that the neutral connects to the switch allows the active cable to connect when it disconnects or there is a malfunction, any of them can be serious, even fatal, dangerous.

Without grounding, the two wires are hot, which means that the wires are fed to the circuit tension. If anyone touched the conductive part of one or the other wire, they would be exposed to the complete circuit tension. With a circuit on the ground, a single wire becomes hot and the other wire is on the ground.