Distribution and use of electricity throughout the home. Electrical standards vary greatly worldwide, so providing your location in your question or your profile helps ensure you get answers that are relevant to you.

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2
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2answers
1k views

How should I wire a Trane air handler & heat strips?

Looking for validation or correction on my understanding of requirements for wiring 5 ton Trane air handler with 20kw heat strips. Of course, I read the label and identified that there are (2) 240v ...
2
votes
3answers
2k views

Is it legal to wire a bath fan using load from top of GFI outlet?

Purchased a place and we are re-wiring the bathroom and putting in a standing shower. The bathroom is quite small so there is just enough room for this. There is a dedicated circuit, a round box above ...
9
votes
2answers
19k views

Should all Federal Pacific panels be replaced?

I understand that Federal Panel Stab Lok breakers have the potential for becoming stuck, overheating, and starting fires. My home has a Federal Pacific panel but no outward markings of being a Stab ...
3
votes
2answers
630 views

Can stranded wire be used for pigtails in a junction box?

I replaced a fixture today that had a piece of 12Ga stranded (probably THHN) wire used as a pigtail. The building has some wiring in conduit (other wires in this box were solid), so I'm guessing ...
1
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2answers
150 views

Can I fully load multiple breakers (rooms) in my apartment?

I've got some very high-amperage devices (Bitcoin miners. ugh.) coming into my apartment; and although I'm going to pains to make sure I don't over-load any single room's breaker on the wall sockets … ...
6
votes
1answer
557 views

Permanent USB Power Off Mains [closed]

I'm having my house (in the UK) rewired and want to install some PIR sensors (link) in a few rooms. Instead of using batteries there's an option to have them permanently powered via USB cable. Is ...
6
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4answers
2k views

Are there any restrictions on using crimped connections to electrical devices (receptacles, switches)?

As the title states, are there any code restrictions in general on using crimped spade and ring terminal connectors when wiring household electrical circuits? I've actually been doing this for a ...
2
votes
1answer
219 views

manual transfer switch - 2 main panels

I have 2 main panels, each 150 amp, each connected to meter. I'm installing a Reliance transfer switch (model 3006HDK). All instructions show how to wire circuits from a single main panel. Can I ...
0
votes
1answer
186 views

Transformers Wiring To outlet cord

Can I wire a transformer to an outlet cord rather than hard wiring into hvac system. Adding a GPS to air handler and it requires its own transforme. Any suggestions??
2
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2answers
128 views

How can I determine what is wrong with my lighting circuit?

I have a situation where I have a circuit which includes; Front outside door lights, Hall lights Closet light 2 ceiling recessed lights They all go dead, then a few days later work again. I ...
4
votes
4answers
493 views

Will the original ceiling box in my 1939 home support a new 45lb chandelier?

I recently purchased in a house built in 1939. The electrical boxes and wiring have been replaced, but the ceiling support bar holding up the box looks original (i.e., flat steel bar attached to the ...
1
vote
1answer
514 views

How do I rewire this ceiling fan?

Hi someone was cleaning the dust off a ceiling fan in my house today and the screw broke off from the ceiling so we had to take it apart to fix it. Now we are trying to figure out the wiring the ...
2
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2answers
230 views

Box in knob and tube wiring between ceiling and cellulose?

I know that code says no cellulose insulation with knob and tube wiring because of possible heat build up. I also know that evidence of it causing fires because of this is scarce and a few states ...
2
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2answers
67 views

Is there a 3-way occupancy switch with one sensor being external?

I have two lamps wired to a 3-way regular switch: one in a hallway and another one on the staircase following it. I would like to change the regular switch with motion detection occupancy one, but ...
2
votes
2answers
917 views

Where can I find information on slow blow breakers?

In a previous question, the comments mentioned slow blow circuit breakers. I have done a web search and went to Square-D's website(the maker of my current breakers) and came up empty. There is a lot ...
2
votes
1answer
945 views

15 amp load trips 20 amp breaker instantanously

New construction wired by professional electrician, Montana USA. Dedicated circuit for a 14" chop saw with 10 ga. wire and a 20 amp breaker. Saw was used previously on a 15 amp circuit with no ...
3
votes
2answers
8k views

What is the standard 120V light bulb screw base in the US?

I know that standard incandescent bulbs in the US use Edison screw bases, but I'm not sure which designation / number is the one which is used for prolific non-candelabra 120 volt fixtures.
3
votes
3answers
367 views

Lighting circuit trips breaker every time

I have a lighting circuit in my home like so: Every time I turn on the switch, the breaker trips. This circuit has existed for over four years and only now has the problem begun. I've checked all ...
2
votes
4answers
659 views

How should I run power wiring and Cat-5 to the perimeter of my huge yard?

I have a house that sits on about 4 acres of land. There is a very large front yard and an even bigger one in the back. I want to get both power and Ethernet (for security cameras) located at various ...
0
votes
2answers
394 views

Could our electric baseboard heaters be causing soot damage in our kitchen?

We have electric baseboard heat that's about 30-35 years old. Each room has its own unit. We normally keep each unit on 60-62 °F. We only use 3 units: kitchen, living room, and master bedroom. ...
3
votes
2answers
134 views

Can hook up this light fixture to a cord?

Is it possible that this light fixture could have a power cord connected to it? For home use... The tag says: Caution (Please read below): Factory wiring is for all "on" operation For switching ...
2
votes
5answers
8k views

Is Duck/Duct tape safe to use to insulate mains wires?

Question says it all really. Based in the UK so mains is 240v and 20 amps. It's a lighting circuit.
1
vote
2answers
890 views

Three hot wires,1 neutral on a switch

I am trying to replace an outlet, but am having trouble figuring out how to wire it properly. The top receptacle on the outlet is supposed to be connected to a switch. When the switch is turned on the ...
1
vote
1answer
386 views

5 wire hob to 4 wire junction

Looking for verification before I have this wired. The hob is 220-240v 50/60Hz 11Kw being wired to a 50 amp breaker. The hob has 5 wires; 4 hot 1 ground. Me Electrical has 4 wires; 2 120v hot, ...
0
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0answers
24 views

led bulb strobing without power [duplicate]

Why do led light bulbs act like strobes in line of six lights, without power from switch. Unless there is one incandescent light in circuit. Take that one out of circuit and they strobe even with ...
2
votes
1answer
233 views

Why would two regular outlets stop working after I replaced GFCI outlets?

I replaced to gfci outlets and they are working fine, but two outlets on the same wall that are regular stopped working and are not receiving electricity. I checked and checked to see if I did the ...
1
vote
1answer
97 views

Why does my 2 bulb fixture have 40 volts going to it when a bulb is removed?

When second bulb is removed in the fixture in the off position, the remaining bulb lights dim (fixture switch still off) and the socket that is bulb less reads 40 volts, when replacing the bulb both ...
1
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2answers
525 views

Delay when powering LED light strip

I made a "shop lamp" out of an LED strip and power supply. When I plug it in there is a 1-2 second delay before the lights are powered up. Do some transformers have a shorter delay than others?
3
votes
2answers
1k views

Do I have to GFCI protect a range plug if it's within 6 feet of a sink?

I am installing a range plug within 6 feet of a sink, do I need a GFCI? I do not have a 2014 NEC code book so I don't know if the code has changed. It has not been required in the past but things can ...
2
votes
1answer
1k views

How to turn off all power to the electric panel?

What if I want to run all new wiring in my house and also replace a panel. Is there a way to disconnect main line somehow before it comes to the panel?
1
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2answers
2k views

Ceiling lights running dim

I have a persistent problem with the upstairs ceiling lights in my house where they often run dim for a while and then return to full brightness a few seconds later (at most 1 minute). Sometimes ...
0
votes
1answer
58 views

What could be causing this strange behavior of a branch circuit?

My uncle lives in an older house with crazy wiring. The kitchen lights, microwave, most receptacles and fridge stopped working yesterday for 4 hours. Then they came back on with us doing nothing. Well ...
2
votes
2answers
2k views

Fast *safe* way to add an outdoor light

I want to add an outdoor light or two on an exterior wall that has no lights. (I'm about to get a puppy and have a door out from my bedroom that has no lights. Since I live in the mountains and have ...
0
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1answer
591 views

How can I convert 4 ft fluorescent tube fixture to be used as a plug in fixtures?

So I purchased four overhead 4 foot fluorescent tube fixtures and my plan is to re-wire so that I can plug them into a wall. Would it make sense to run them in (Series)? (I believe that is the ...
0
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2answers
5k views

If our Panasonic microwave shuts off after 2 seconds, is it likely a door latch or magnetron issue?

Need some help with our Panasonic Inverter NN-SD681S. Very light use and in perfect condition except that it suddenly started shutting off after 2 seconds. All other functions are fine (lights/power ...
1
vote
1answer
267 views

How should I run electrical wire perpendicular to exposed joists in my basement?

I have some questions in regards to running electrical in an exposed, unfinished basement environment. I understand that wire running parallel to floor joists should be at least 1.25" above the bottom ...
1
vote
1answer
84 views

How to protect non-metallic cable parallel to face of joist in attic?

I would like to run non-metallic cable (Romex) along the sides of the floor joists in my attic. Code (NEC 300.4(D)) says that wires need to be 1.25" from the top or bottom of the framing member. ...
0
votes
1answer
103 views

Electric line to subpanel

I'm running 2 100 amp 110 lines 35 yards from my well house main to a sub panel in my garage. Do I need to run a ground wire and a neutral wire or can I just run one of them from the sub panel to a ...
0
votes
2answers
109 views

Circuit breaker + panel selection — make and breaker series?

Is there a compelling reason to choose one type/brand of breaker & panel (Eaton CH, Eaton BR, Square-D QO, Square-D HOM, Siemens, GE) over another when putting a new electrical panel and breakers ...
3
votes
1answer
1k views

How would I go about adding more receptacles to a garage?

Looking for help in trying to get more electrical outlets installed in my woefully under-receptacled garage. I have one GFCI 20A outlet at the door going into the garage, one single ceiling outlet for ...
1
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0answers
78 views

electrical combination outlet and switch wiring

I have a combination wall plate with a switch on top and outlet on the bottom. The switch controls the garbage disposal and the outlet is always on. There are two black wires and one white. One ...
3
votes
1answer
270 views

What is this electrical panel for?

I bought a rehab house and currently trying to identify what everything is in there. There is this panel in the garage. Does anyone know what it is? http://imgur.com/a/icRHd
1
vote
1answer
1k views

Should I use 12/3 NM cable for a 240 volt 40 amp electric cooktop?

I am installing a 240 volt 40 amp electric cooktop. Will 12/3 NM cable suffice for this? Secondly, I know I need a double-pole breaker because 240 volts is delivered using two out-of-phase 120 volt ...
0
votes
2answers
143 views

wire on the floor. What is it likely was used for?

I bought a rehab house. This is what I think was a laundry room because of the drier hookup. What is this wire laying on the floor? What was it used for? my current thoughts: a) There are many ...
2
votes
2answers
5k views

How do I wire a light switch and outlet in the same box?

I have a single gang box in a bathroom with a GFCI outlet. I'd like to replace it with a 2-gang box containing a GFCI outlet and a light switch for the vanity light. The outlet will have both ...
1
vote
0answers
54 views

Are there any load meters available for my main electric panel?

I have a 200A main coming into the house (Bryant-type panel, which is basically GE now) and was wondering if there is a digital/analog load meter that could be hooked up? I have a clamp meter now, to ...
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0answers
314 views

Gas Dryer suddenly trips any GFCI Outlet immediately upon being plugged in, but works fine in non GFCI

I have a Maytag Centennial gas clothes dryer in my laundry room. It is connected to a non-gfci outlet which is downstream of another outlet with built in gfci. It has been connected like this and ...
3
votes
3answers
1k views

Copper Water Pipes used as Electrical Ground

I am replacing a section of copper water pipe that burst behind tiled shower wall. Since the pipe run is along an exterior wall subject to winter temperatures, I'm considering replacing this section ...
2
votes
1answer
203 views

Can/should I install the breaker box in an annexed room?

I have three choices for the breaker box, in Brazil there is no national code restricting its location, but I still want it to have a good/proper location. In my workshop that is annex to the house, ...
2
votes
3answers
77 views

What can I do about radiant hot water tubing above an electrical panel?

My wife and I have a new construction with radiant heat installed on the underside of the floors between joists, which was in place before the electrical was installed. Electrical inspector burst a ...