Questions tagged [neutral]

For questions relating to the neutral wire, or "grounded conductor" as it's sometimes called. The neutral, or "grounded conductor" in NEC, is the normal return path for electricity in a household AC circuit.

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1answer
903 views

Installing night-light switch on hot-neutral-ground circuit

I am attempting to add a light switch that has a night light in it to my workshop. I noticed that the switch box only has one neutral wire leading to it, and what appears to be a ground wire tied into ...
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1answer
2k views

Sharing neutral between branches

Legal? Safe? I don't see a problem with this as long as neutral uses a gauge high enough to support both branches. Am I missing something here? EDIT: Here's an illustration:
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2answers
4k views

New house - No neutral in switch box?

I was going to add an outlet to a switched 1 outlet circuit thinking it would be pretty straight forward to run a wire from the switch box to a new outlet. The switch in question is a simple 2-way. ...
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1answer
12k views

Low voltage on circuit after breaker turned off - induced or backfed voltage?

I was planning on installing a programmable timer on one of the 4 single-pole switches on a circuit. All of the 4 switches control various lights towards the front of the house, one of which is a pair ...
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1answer
1k views

How can I test the integrity of my neutral wire?

I wired up a set of ELV lights and installed a Lutron dimmer switch specifically designed for ELV lights. They have a problem with flicker. The manufacturer of the lights has advised me that having a ...
6
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3answers
1k views

Leaving lost neutral wire

I am in the process of clearing out old random wires from my 100 year old house (think multiple layers, modern, knob and tube and everything in between). In the process of doing this, I tried to ...
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2answers
8k views

Dangers of connecting ground to neutral?

In my living situation, there is no ground wire at the building. There is a ground AND neutral bus in the breaker box, but it doesn't extend to this separate building, which I'm living in. I've got ...
2
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1answer
87 views

Ground to neutral bus/connector on receptacle

I'm replacing an old/aged receptacle. Incoming hot wired to hot on receptacle. Neutral had been previously connected but snipped off and wire is loose in box (copper end more or less insulated). ...
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2answers
615 views

What do I do with the neutral wire when there isn't a place for it? [closed]

I'm trying to replace a 3 prong dryer cord with a 8 gauge wire. The control box has a three prong dryer wire that was originally connected to it. I don't have that type of outlet so I'd like to hook ...
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2answers
81 views

How many terminal bars N / PE do I really need?

I've purchased a wall mounting enclosure by ABB (serie Europa), and in the manual they recommend special designed terminal bars ABB 12494 for the enclosure. I can't figure out if I need TWO of this ...
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1answer
90 views

New service, detached structure

I am now living in Cuenca, Ecuador. I have yet to see any electrical wiring that meets code. Zip, zilch, nada. Wires running everywhere, people scabbing onto other peoples houses to get electricity, ...
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0answers
36 views

enough electrical knowledge to get me in trouble

I have an Arc welder and just picked up a spot welder. Checking the Arc welder cord I found it has 4 wires. The green is cut off and the white is used. Do I need to have the neutral (white) and the ...
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1answer
61 views

Midway Neutral disconnects whole house supply

We have pretty good electrical wiring as an electronics hardware lecturer has recently changed certain wiring. Recently at one switch box in the mid-point of the house electrical wiring, when a ...
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1answer
4k views

Why would a 120v circuit work without a neutral?

My home has a relatively typical (in America) 100 amp 240v feed accomplished via three conductors - two 120v "hot" wires and one neutral. This gives me my 240v circuits (the two hots) and my 120v ...
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1answer
163 views

No neutral kitchen wiring

Home built 1975, South Florida. Adjacent to my kitchen sink is a combo switch controlling a non-GFCI receptacle below the sink for the garbage disposal. Next to it (same box) is another non-GFCI ...
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1answer
2k views

Workaround for a bad neutral cable

Question: A 3-wire socket (hot, neutral, ground) in my bathroom has stopped working due to a bad neutral wire. Can I safely disconnect the bad neutral wire completely, and move the ground wire to the ...
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2answers
9k views

How do I determine if I have an open neutral?

I live in VA. My bath and bedroom lights were working fine and suddenly it was as though I threw the circuit breaker. Everything on the bedroom/bathroom circuit breaker went dead. I checked the ...
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1answer
126 views

Is a grounded/neutral wire (not grounding wire) required to be run to a subpanel that will supply only 240V (2-pole) devices?

I'm installing a subpanel that will supply only 240V 2-pole devices. I'm positive I never will need the capability to run 120V (1-pole) devices. Am I required to run a neutral wire to the subpanel? ...
4
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1answer
574 views

making sense of a confusing light switch box

I'm trying to install a GE Z-Wave 12724 Smart Dimmer and my light switch box looks nothing like I imagine it's supposed to with wires properly identified. This wouldn't be the first improperly ...
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1answer
227 views

Why can't I put a load between hot and the ground line? [duplicate]

Normally the load goes between hot and neutral line. Since neutral is grounded why can't I put a load between hot and the ground line?
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1answer
172 views

Input voltage drop to 190v after switching over load

We have an Online-UPS connected as per the diagram. The output is given to a change-over switch. So If we want to feed the computers direct AC we switch it to Source O (Top) for bypass and if we ...
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1answer
724 views

Replacing subpanel in detached building - yet another ground/neutral question

Here's the situation. I've added on to my detached shop/garage and need to upgrade the very small subpanel. The existing garage pre-dates the 2008 NEC by at least a decade, and is supplied by a 3 ...
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1answer
815 views

Wiring help for a Switch with LED Guide Light

In my bathroom I have a dual switch box. The left side controls a light, the right side controls a bathroom fan. I'm trying to convert the light switch (left side) to a Switch with LED Guide Light. ...
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1answer
435 views

Subpanel or not? Neutral and ground bonded?

How do I fix the AC unit to be connected properly to its circuit? How should the AC Unit/Garage/Subpanel be setup? Maybe I can separate the neutral and ground, then ground by connecting to the garage ...
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2answers
3k views

Is this neutral-ground bus bar configuration correct?

Looking inside the electrical panel in the house I bought, I was surprised to see the neutral bus bar crowded right up next to the ground bus bar, so much so that it seems the ground bus bar is ...
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0answers
168 views

Trying to determine if I have a neutral wire

I used to have an on/off wall switch that controlled a wall socket to which a floor lamp with an LED light bulb is connected. There is another socket in the same box that is not controlled by the ...
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1answer
94 views

how should i wire up this 2-way z-wave switch?

I want to replace the 2-way switch on the left with a z-wave dimmer switch. Currently this box has a 2-way Dimmer on the left, and a 3-way switch on the right. As noted, all of the neutrals(marked W ...
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2answers
978 views

Why is neutral wire connected to the right side of a plug?

Why can't the neutral and live wires be exchanged when wiring a plug?
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2answers
2k views

Electric Dryer Leg A drops to 0V Leg B spikes at 240V when start pushed

I am in the military and came back from a month overseas and my 3 prong electric dryer would not start. I am an electronics technician (radios) so I am quite experiences with electronics and theory (...
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0answers
103 views

How should I connect a new RF switch to replace two standard switches?

I have two light switches. Each runs three lights and has its own hot and neutral wires (so in total--2 hots and 2 neutrals). I bought this remote switch which accept only one in and two out. The ...
2
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1answer
2k views

neutral bar is burnt

The neutral bar is burnt in the breaker box of my mobile home. The kids hooked up a small window cooler and ran it a couple months ago, by morning we woke up smelling wires burning. We traced it to ...
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0answers
685 views

Neutral shows only continuity to hot with breaker on

I have a GFCI receptacle that as far as I can tell is the first one from the panel (because nothing else is off in the house when the breaker is off). I have to replace the old outlet. When the ...
2
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1answer
2k views

Can two light fixture switches share a neutral?

I have two porch lanterns ( sgl pole sw #1) and one foyer ceiling light (slg pole sw #2) in an existing two gang box, but I'm not sure how to use some existing old black pipes for my new wiring. One ...
3
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1answer
428 views

Possible neutral problem - Utility side vs. Load Side?

PLEASE NOTE: UPDATED CIRCUIT NUMBERING FROM 12 & 14 to 14 & 16 I would greatly appreciate your help with trying to diagnose a problem that appears to be an open neutral. In my kitchen I have ...