Quick Answer: Should There Be Voltage On The Neutral Wire?

Why is there 120 volts on the neutral?

A neutral not connected somewhere can cause a reading of 120 volts on the neutral to ground.

The voltage flow through any device that is plugged in.

The device does not work because there is no current flowing..

What is the usual voltage of a neutral wire?

4 Answers. The neutral wire is defined to be 0V. And each phase individually has a voltage relative to neutral of 115V if you are in the US, and 230V if you are in most of Europe.

What happens if neutral is not grounded?

If the grounded (neutral) service conductor is opened or not provided at all, objectionable neutral current will flow on metal parts of the electrical system and dangerous voltage will be present on the metal parts providing the potential for electric shock.

Why do you bond the neutral to ground?

To provide the low impedance path necessary to clear a ground-fault from the separately derived system, the metal parts of electrical equipment shall be bonded to the grounded (neutral) terminal (Xo) of the derived system.

What is the purpose of the neutral wire?

Neutral wire carries the circuit back to the original power source. More specifically, neutral wire brings the circuit to a ground or busbar usually connected at the electrical panel. This gives currents circulation through your electrical system, which allows electricity to be fully utilized.

Why does my neutral wire have voltage?

The voltage you are seeing on the neutral wire is conducting through that other load from the hot. Your voltage tester is detecting voltage without drawing current so the resistance of the other load is not seen.

Can a neutral wire be connected to ground?

The neutral conductor is connected to earth at the building point of supply, but no common path to ground exists for circuit current and the protective conductor. … The neutral conductor is connected to earth ground at the point of supply, and equipment cases are connected to the neutral.

What happens if earth and neutral wires touch?

In Short if neutral wire touches a earth wire, An earth wire carrying load current is a risk of electric shock because a person touching this earth may present an alternative path for the load current and thus the risk of electric shock.

Can a light work without neutral?

Yes, there are a few… (read very, very, very few) switches that don’t require a neutral, but those will limit you to incandescent only. For those of us using LED, Fluorescent or some other energy efficient bulbs under 20w a neutral is REQUIRED! … This is a diagram of a switch with the neutral run directly to the light.

Does the neutral wire carry current?

The neutral wire in a circuit carries the same current as the hot wire. Current goes out to the load and must return. That’s why the neutral wire must be the same size.

Can you get a shock from the neutral wire?

So even the current returns through neutral (only from a connected load that completes the current flow circuit) you touching the neutral with a 0V cant get you a shock. But its not safe to touch neutral wire! … Some voltage between earth and neutral(at a high potential) can give you a shock.