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Why do we have a neutral wire along with live wire in ac wiring connection?
Wiki User
∙ 13y ago
Yes. The neutral wire is grounded at the distribution panel, so that the live, or hot wire's potential cannot exceed a safe level above ground. Without this ground, neutral and hot would still have their specified voltage difference, but the voltage to ground could be arbitrary, such as the primary high voltage input to the transformer, creating an electrocution hazard.
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoThe live wire, also known as the hot wire, is one of two conductors required to make a circuit. The other conductor is either another hot wire for 240, opposite in phase, or it is a grounded wire for 120, also known as the neutral wire. This is the normal 120/240 split phase system used for residences in North America.
Wiki User
∙ 14y agoPotential difference propels the electricity (whether a/c or d/c) through wire.
Wiki User
∙ 13y agoThe neutral wire is to complete the a.c. circuit. It brings the current back to the supply.
Wiki User
∙ 12y agoto make a circuit
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What are the needs for colour coding of cables and wiring including live neutral and earth colours?
Australia: ANZS3000 Active= Red or Brown Neutral = Black or Light Blue Earth = Green or Green and Yellow stripe
Is it important to always match live to live and neutral to neutral when wiring in electrical devices or can you interchange at the device end?
In most cases it doesn't matter, but some appliances like a light dimmer will not work correctly otherwise. If it is a electronic device it will have a capacitor between signal ground and neutral. Faulty wiring will make it possible to get small (non lethal) shocks by touching earth and signal ground or introduce hum in audio devices. So, important no, but wise.
What is the correct wire gauge of ordinary household wiring?
Mainly copper is used for household wiring but it may vary.
What is the problem if I measure voltage on an 120vac outlet 96 volts from neutral to ground?
Firstly measure the voltage between your live and earth.Assuming you get ~120 volts here, the problem is a loose neutral somewhere along the line.If you get 24volts the problem is a bad earth connection, with a fault voltage on it.TBH it's most likely the former, as the latter implies 2 separate faults.
What is the job of the neutral wire in a 3 pin plug?
The 3 wires are live, neutral and earth. The current travels along the live and neutral because 2 wires are needed for the the current to flow, while the earth is a separate safety wire that normally carries no current, until a fault occurs.
What color is live wire in old plugs?
In the UK, the old wiring colours were... Live = red, Neutral = black, Earth = green.
Are there electrical colour codes for wiring in India?
Red, Yellow and Blue for Live. Black for neutral and Green for Earthing
French sockets wiring which way round. Leaflet says live on left as you look at it but then the live on the right in plug would be connnected to neutral in the socket.?
The last time I was in France, everything was 220 Vol0s, therefore, no neutral.
What colour earth neutral and live in armoued cable?
All depends on what country you are in, wiring standards and cable type. Industrial cable in the UK is. :- Red = Live Black = Neutral Copper wire = earth. (add Green/Yellow striped sleeve at junctions.) Domestic is:- Brown = Live Blue = neutral Green/yellow stripe = Earth Europe Black = Live Blue = Neutral Brown = Earth
What are the UK wiring colours?
The brown wire is live (Mr Brown is a live wire!)Blue is the neutral wire for the return current. Green/yellow is the earth wire.
What do the letters N E and L stand for in electrical wiring?
E=earth (ground) n=neutral l= load(live wire)
Could anybody help the reading between earth and neutral in the incomer supplying power to the house is 120V while live and neutral reads normal 220V and live-earth reads up to 298V.?
It sounds like either you have a bad ground connection or that ground and neutral are NOT bonded at the main panel only. There is either a strap or screw in main panel that connects ground and neutral. Also check the connection to a ground rod and that the ground rod is intact.
What are the needs for colour coding of cables and wiring including live neutral and earth colours?
Australia: ANZS3000 Active= Red or Brown Neutral = Black or Light Blue Earth = Green or Green and Yellow stripe
Is it important to always match live to live and neutral to neutral when wiring in electrical devices or can you interchange at the device end?
In most cases it doesn't matter, but some appliances like a light dimmer will not work correctly otherwise. If it is a electronic device it will have a capacitor between signal ground and neutral. Faulty wiring will make it possible to get small (non lethal) shocks by touching earth and signal ground or introduce hum in audio devices. So, important no, but wise.
What is the correct wire gauge of ordinary household wiring?
Mainly copper is used for household wiring but it may vary.
What is the problem if I measure voltage on an 120vac outlet 96 volts from neutral to ground?
Firstly measure the voltage between your live and earth.Assuming you get ~120 volts here, the problem is a loose neutral somewhere along the line.If you get 24volts the problem is a bad earth connection, with a fault voltage on it.TBH it's most likely the former, as the latter implies 2 separate faults.
Which colour wire is live in UK wiring?
In a flexible cable, the brown is the "line" voltage and blue is "neutral", often tied to ground at the mains panel. In fixed cables, i.e., "behind the walls", the UK wiring standard changed in 2004, where it now MATCHES the flexible cable: brown is line, blue is neutral. Prior to that, blue, red or yellow were acceptable LINE conductor colors and black was neutral.
