- Does a timer switch need a neutral?
- Can you touch a live neutral wire?
- Can you get a shock from a neutral wire?
- Why does my neutral wire have voltage?
- What happens if neutral is not grounded?
- How many volts does a neutral wire have?
- How do you reduce neutral to ground voltage?
- Why does my neutral wire have 120 volts?
- Can a light work without neutral?
- What is the neutral wire used for?
- Should there be voltage on the neutral wire?
- What happens if the live wire touches the neutral wire?
- Is it OK to connect neutral to ground?
- What will happen if fuse is connected to neutral wire?
Does a timer switch need a neutral?
Many electrical timers require a neutral so that the switch can be powered without sending power to the load.
If you do not have a neutral at the switch box it means that the power source (line) does not come into that box and you are just switching the hot from another source..
Can you touch a live neutral wire?
If something goes wrong, that neutral wire could go to the full line voltage. So the answer in terms of good safety practice is to never touch the neutral wire, unless you have the power shut off for the part of the system you are working on.
Can you get a shock from a neutral wire?
No. By definition a neutral wire is a wire that is grounded to 0V. It does carry the current from the circuit back to the transformer however. If a system is wired correctly the neutral wire will never give you a shock.
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.
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.
How many volts does a neutral wire have?
In the electric power grid, “neutral” is ground, by definition. So the voltage of the neutral wire is always zero… By definition.
How do you reduce neutral to ground voltage?
Traditional mitigation techniques include: load balancing, resizing neutral conductors, isolation, improved grounding techniques and equipotential planes. Load balancing. On three-phase, grounded-wye distribution systems with equally balanced 60-Hz phase currents, the net neutral current should be zero.
Why does my neutral wire have 120 volts?
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.
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.
What is the neutral wire used for?
Neutral wires carry currents back to power source to better control and regulate voltage. Its overall purpose is to serve as a path to return energy. Ground wires are electrical paths designed to carry fault currents when a power abnormality occurs.
Should there be voltage on the neutral wire?
You have to measure neutral-ground or hot-ground. If neutral-ground voltage is about 120 V and hot-ground is a few volts or less, then hot and neutral have been reversed. Under load conditions, there should be some neutral-ground voltage – 2 V or a little bit less is pretty typical.
What happens if the live wire touches the neutral wire?
The live wire touches the neutral wire. – This will create a short circuit as a large current which exceeds the fuse rating will from the live (240 V) to the neutral wire (0V) as that path has very low resistance. The fuse will blow. The live wire touches the earth wire.
Is it OK to connect neutral to ground?
No, the neutral and ground should never be wired together. This is wrong, and potentially dangerous. When you plug in something in the outlet, the neutral will be live, as it closes the circuit. If the ground is wired to the neutral, the ground of the applicance will also be live.
What will happen if fuse is connected to neutral wire?
The fuse wire is always connected in the live wire of the circuit because if the fuse is put in the neutral wire, then due to excessive flow of current when the fuse burns, current stops flowing in the circuit, but the appliance remains connected to the high potential point of the supply through the live wire.