Questions tagged [wire]

Questions about wires, usually seen in electrical applications. Questions with this tag are typically about sizing wires appropriately for the projected usage, but could also be about properties of or problems with a wire.

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0answers
1k views

How do you release the wires from this Slater push-in connector?

I know you are supposed to be able to push a screwdriver into a slot "under" the wire, but this old (late '70s?) Slater light switch has different slots than I see in all the examples. They are more ...
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2answers
330 views

Should the ground lug be bonded in my sub-panel?

I have 200 amp service at the house. I want to install a DP 60 amp breaker in that panel and run # 6 wire approximately 150 feet (10% added for swag) overhead to a dog rescue building. The building ...
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0answers
35 views

How to stick lamp holder to cable?

I recently bought some bulb holders and now I'm wondering how I am supposed to attach them to the wire. I don't want the whole lamp to hang only on the small, exposed power connections inside. In the ...
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1answer
27 views

Nut size of earth stud on a can light

This should be a simple to answer but I am not sure how to phrase it for google. For a standard recessed light (aka can-light) in the US, what is the nut/thread size of the earth stud on the inside ...
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2answers
777 views

AC: Powering a 25 amp appliance from 2x20 amp breakers

I want to use a 25 amp appliance but only have 20 amp breakers. Work around I am thinking of hot wiring the output of 2x20 amp breakers so that the 25A load is distributed between 2 breakers instead ...
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3answers
164 views

Capping off a single (large) wire?

I have a five-conductor 2 AWG cable (three phases, neutral, and ground) connected into a 22.5 kVA (i.e., very big and dangerous) power supply. This is being used for research relating to ground faults,...
2
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1answer
613 views

Proper way to protect wires into top of surface-mounted electrical panel

What are the Code requirements for protecting wires going into the top of a surface mounted electrical panel? Do the wires need to be in a conduit from the top of the panel into the ceiling above? ...
7
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5answers
17k views

Is this exposed wire dangerous?

I have this wire some of the inner part of which is exposed. My friend claims that this is highly dangerous, but I don't think that touching it would be lethal, and in the worst case scenario there ...
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3answers
801 views

Staple Through Electrical Wire

I was installing a new bath fan and had it all done. I was cleaning up the wires in the attic and accidentally put a staple through the wire as I was securing it to the lumber. I put some electrical ...
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4answers
66k views

Is it safe to install a three pronged cable into a four pronged dryer?

I just moved into an old home that has a three pronged wall jack as shown below: I have a newer dryer that has a four pronged cable. Please see the back of the dryer, I've removed the four pronged ...
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2answers
607 views

Unistrut Spacing - Electrical Conduit

When suspending electrical conduit from the ceiling in a warehouse (EMT or Rigid), that runs perpendicular across unistrut, how far apart are the unistrut allowed to be? What type of conduit is ...
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1answer
104 views

How to Run an Electrical Wire from a Breaker inside the house to the Deck

I just got a deck made at the back of a house in Alberta, Canada. House is wooden with PVC siding on the outside. I do have access in the basement to drill a hole and run a cable outside, but, not ...
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0answers
59 views

What's the purpose of a wire from stud to outside?

On a couple of my studs there is a small gauge wire that seems to go through the outside wall to the outdoors (into the flue cavity) as shown in the picture. What is its purpose? This is on the wall ...
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1answer
62 views

Ac Induction or Broken Wire?

I'm making a DIY wall mounted pull-up bar (I'm too tall for the normal kind, and can't fit a commercial wall bar due to a sloped ceiling) and I just mounted the heavy duty brackets I'm using, but I've ...
4
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3answers
2k views

Are splices required in a junction box?

If I have a conduit with 6 wires (3 separate circuits), and I want them to split at some point, can I send the conduit (A) to a 4-inch square junction box and then send 2 wires to leave the junction ...
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4answers
14k views

How can I know if I damaged any electrical wire while drilling a hole in my wall?

I have a relatively new house (built 2014) with circuit breakers etc. I just drilled a couple of holes at around the same level as the electrical outlets and I put 1 5/8 inch screws in them. I ...
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1answer
62 views

Making sense of wire colors and connections

I am having trouble identifying which wires are in my box despite all the colors being quite clear. The voltage drop between: White-Ground= 123.5 Red-Ground= .3 Black-Ground= .3 Black-Red= 0 Black-...
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1answer
76 views

What is the service wire sizing based off of on a temporay power pole?

I know how to use the wire sizing tables, but I'm unclear on how to size wire before a breaker, and when the panel has no main breaker. For example, If I have a temp power service panel that is rated ...
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1answer
25 views

transmission wire amp rating [closed]

I have a cable which has 3 wires, each wire is 7 strands of SWG 22. I need to find the transmission amp rating for this cable. How do I go about it? Thanks
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2answers
75 views

Are Ideal Greenie 30-192P Ground Wire Nuts approved for use with stranded wire?

I looked at page 4 of the UL document here: http://www.idealindustries.ca/media/pdfs/products/ideal_ul_listed_combinations.pdf And I notice that it says you can use up to 4 #12 wires. However, it ...
0
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1answer
228 views

One outlet, two hots, one neutral, no power to the other outlets

Here it is my scenario: All 120V outlets. Several outlets and I don't know how they are wired between them. Everything was working, but I decided to replace one outlet that was too old. This outlet ...
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2answers
80 views

Wireless Track Light Switch [closed]

My goal I want to run a single track light rail all across the entire ceiling (about 38ft) in my family room using one junction. My problem I also want the ability to turn off certain light segments, ...
0
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1answer
107 views

GFCI outlet and breaker

I recently bought a house. In the dinning room, the previous owners added a gfci outlet connected to a gfci breaker. What might they have used this for? I can’t seem to find any relevant case. ...
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4answers
5k views

Why is the neutral conductor sometimes undersized in AC applications?

Why are electricians allowed to sometimes lower the size of the grounded (neutral) conductor? If alternating current is bidirectional then wouldn't the neutral technically be an ungrounded (hot) ...
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1answer
35 views

How do I wire this ceiling lamp?

I have this metal ceiling lamp but it have two earth wires, one for the holder on the ceiling and one for the cover of the bulb, and I don't know if I have to connect them to the house wires or just ...
0
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3answers
48k views

What gauge wire is typically used for the input to a home breaker box?

I have a moderately-sized home (~2400 sq. ft.) in the United States that was constructed in 1999. I am looking to build a home energy monitor to track my electricity usage versus time. Obviously, in ...
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0answers
135 views

How can I run wire rope around the corner of my railing with a turnbuckle?

I have a rooftop that looks like the following. I'll be using turnbuckles to connect each tube to the wire rope. The issue is: what do I do with the corner tubes? If I use the turnbuckles for the ...
0
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2answers
3k views

Installing a 4 wire timer on a 3 way/3 wire outlet

I want to control an outside light with an inside timer switch. This is on a 3 way switch arrangement. The new timer has 4 wires(B/W/R and Green) and the feed only has 3(B/W/R). The diagram shows the ...
2
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3answers
239 views

What's this wiring contraption in my closet?

I recently moved into an old apartment and found this contraption in a closet, with wiring going in different directions around the door frame. Some of the wires are cut in places mid-wall and have ...
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0answers
76 views

How to bring solar panel wires inside house?

I have a pretty simple solar panel setup in the backyard which links to the charge controller to the batteries. I wanted to run wires inside the house so I can use it for smaller stuff like charging ...
7
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4answers
27k views

Options for lubricating wires for conduit?

I am trying to pull four #8 stranded wires through a flexible PVC conduit that is 25 feet long. I can get the wires just a few feet into the conduit before they bind. I know there is a commercially ...
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1answer
196 views

Technique or tool to properly expose LED strip wires?

So I have cuttable, weatherproof led strips with the flexible silicone coating domed over the strip. I just have cut a correct length piece of a strip. Now both ends has four copper connectors. I ...
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1answer
236 views

WiFi Thermostat - C Wire

I am trying to install an Ecobee 3 thermostat to replace the upstairs one I have now but the 3rd wire isn't connected to anything on either end. I added the basement thermostat just to complete the ...
2
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2answers
8k views

What size breaker and wire do I need to feed a panel for a tankless water heater?

I purchased a electric tankless water heater and I would like to know the following? The unit requires 3 separate 40 amp breakers, one for each line. I have 200 amp service. The subpanel will be ...
0
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2answers
221 views

Breaker Tripping - Need advice on upgrade

I am in the processes of consolidating all of my home audio / networking equipment into a server rack I picked up recently. This will give me some flexibility of keeping it all together and make ...
0
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2answers
359 views

Replacing a switch where power comes thru the fan to the timer switch, with only 2-wires? [duplicate]

I can see an answer where it suggests a 3-wire run from the fixture but I'm hoping to use existing wiring and it only has black and white wires coming from the bathroom fan to the old timer switch. ...
0
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1answer
63 views

wire is dark, not bright

If I strip an insulated wire, and the wire under the insulation is dark, not bright, and it's this way not just at the end but in the middle too, should I discard that wire for use? Has it been ...
2
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1answer
2k views

Can I leave ports open on push-in type wire connectors?

I will eventually have 7 ground wires, and then another 7 neutral wires to connect each. (obviously I'm not connecting ground wire to neutral wires). I plan on installing leviton smart light switches. ...
2
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3answers
5k views

Wire nut several wires together

I need a wire nut large enough so that I can bundle seven 14 gauge neutral wires together. I am trying to splice it so I can connect it to my new smart wifi leviton light switch. I don't know which ...
0
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1answer
390 views

Should I install a grounding rod near my light post to protect against lightning?

We have a very old house, which has had an old run of electrical cable (2-wire) from the basement about 40ft to a lamp post that has been unused. The old cable has been disconnected, and the current ...
1
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1answer
87 views

How would I go about grounding this light switch?

I am trying to replace a light switch (so it's white and matchs the room, it still works) but the switch in this room is not grounded (there is no ground screw, it's an older switch). There are two ...
2
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2answers
229 views

How can I tell if a contractor is trying to scam me by charging more after starting a job?

I have a remodeling project for about $2,500 and I have already signed the contract. When the contractor was making a new door on the wall he found a wire inside the wall. Now he is asking for an ...
5
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7answers
46k views

How should I wire for a security system during construction?

I would like to run wires in anticipation of a future hard-wired security system. However, I have yet to find any information that pulls everything together regarding what is required. From what I ...
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1answer
325 views

How to terminate wires?

I'm trying to terminate some wires after removing a light fitting. Will it be fairly safe to terminate the wires using screw terminal blocks like these?
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1answer
94 views

3 Switch Wall plate to 1 Wall Plate Ceiling Fan

This is for U.S. based electrical in a house built in 2001. Current State I have a ceiling fan with a light that I am going to replace. With this new fan I want to change the 3 switch configuration ...
0
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2answers
5k views

two dryers on the same circuit [duplicate]

I would like to have two dryers in my laundry room. Can I run both off of the same circuit? Can the outlets be run in series? What upgrades do I need to make for this to work. I have room for another ...
1
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2answers
333 views

Help with Wire Nut sizes [closed]

I need two sizes of wire nuts but I can't find anything that specify the work/wire load that I need. Plus I wanna swap out my backstab/push in connectors with Wire nuts cause people saying it's not ...
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2answers
66 views

Wire with mysterious power

I am currently swapping out my switches with smart switches and one of the switches had different wire setup from the usual. Prior to taking out the switch I took picture of the "primary switch" I ...
2
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1answer
79 views

How to replace AC/DC adapter but keep old connector

I have an AC/DC adapter I need to replace for my dehumidifier. The whole system is no longer working, and I am confident the problem is with the adapter. Finding the correct adapter is easy enough; ...
1
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1answer
838 views

Warehouse Lighting Wire Size Calculation

Warehouse Lighting Wiring Size Question Total distance from panel to end of the longest line is 310 feet. Each fixture is 42 watts, and there will be up to 30 fixtures on each circuit. The first ...