Questions tagged [splicing]

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14
votes
1answer
2k views

Can cable splice devices be concealed?

Devices exist that claim to be able to splice nonmetallic sheathed cables together outside of a box, and in concealed locations. Are these types of devices allowed by National Electrical Code? Here's ...
5
votes
2answers
5k views

Inspector says that split bolts shouldn't be used on live connections. Right or wrong?

I installed a spa sub-panel on the exterior of my house. The inside wiring is NM-B 6AWG wire that goes to a junction box where it's spliced to 6AWG direct bury rated wire (the NM-B wire I had wasn't ...
5
votes
2answers
1k views

Splicing electric in attic properly

I am installing ceiling lights on my attic that has only fiberglass insulation. I needed to splice some cables half way to the fixture box. I just want to verify that I've done so properly. Here is ...
5
votes
1answer
150 views

What is the best way to handle house wiring cables with short sheathing?

I'm replacing a couple switches in a bathroom with smart switches and ran into a problem. The previous owner redid the bathroom and the switch box in question had 5 Romex cables (four 12/2, one 12/3) ...
4
votes
5answers
7k views

Connecting 6 gauge aluminum wiring to 10 gauge copper with AlumiConn

I am replacing a 20 year old wall oven. When I opened the electrical box I noticed very large gauge aluminum wiring (6 gauge?). I purchased a box of AlumiConns (3 port style) to connect the aluminum ...
4
votes
1answer
3k views

Safest Way to Contain Spliced Lamp Cord

I am interconnecting some strip lights in a closet. They are linkable LED fixtures which each come with a connector cable to link, optionally, to additional fixtures. The connector cables are a bit ...
4
votes
2answers
20k views

Is there a way to extend electrical wire where the splices can be finished over? [duplicate]

I want to extend some wires to relocate some switches. Normally one might do this by splicing new wires in and covering the junction box with a cover plate. Is there a way to permanently splice wires ...
3
votes
2answers
956 views

Are splices made with insulated cable connectors required to be inside a junction box?

I have a need to splice a 6/3 romex and 4/3 romex in my attic. It would look something like this: 4/3 |-- (6/3) new destination -----| |-- (4/3) original destination I am looking at ...
2
votes
1answer
96 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; ...
2
votes
1answer
319 views

Splice to repair damaged 100A aluminum feeder

I recently drilled through the floor to run a CAT6 cable and hit the main feed to our panel. I'm in a duplex with a meter main panel with 2 meters and 2 100A breakers, one for each unit. The cable ...
2
votes
1answer
118 views

Split bolt connection. Wire direction

Should the wires being hooked up in a split bolt connector be running side by side, like in a wire nut connection, or running towards each other, in opposite directions. Or does it matter?
2
votes
1answer
2k views

Can I use a junction box to splice together wires that are on a different circuit?

I'm doing some work inside a wall that has some 12/2 NM cable running through where I need to put something. The cable doesn't have any additional slack for me to route it around the obstruction. I ...
2
votes
1answer
2k views

How can I T splice a 120V line in a lighting fixture?

I'm designing a recessed lighting fixture and would like to T splice some of the wires in it. The wires are 14AWG, will carry up to 4AMP and I'm looking to make an elegant connection so that it fits ...
1
vote
1answer
296 views

pigtailed wires downstream of a gfci

I am installing a GFCI in the first box of a two wire non-grounded circuit. The following box(es) have the line and feed wires spliced (pigtailed) before the receptacle so only two wires are attached ...
1
vote
2answers
71 views

Is it ok to split a transformer directly off the wiring from an outlet junction

I am installing a doorbell transformer for a new Ring doorbell and I have an outlet right next to the main box. It would be simple for me to take the existing wiring, branch it and use it for the new ...
1
vote
1answer
798 views

Is it OK to splice NM and NM-B cable?

I'm replacing some light fixtures in my house, and the existing cable coming out is very old. I was able to make out the stamp along the length, and it's 12/2 NM cable, rated to 60C. It's got a ...
1
vote
2answers
264 views

How should I splice the very short wires for this LED shop light into my 12/2 NM-B?

I'm installing 3 LED shop lights in my basement workshop. I've already run new 12/2 NM-B wire to a few junctions and switches, per light. The attached picture is an example of the final splice I need ...
1
vote
2answers
998 views

Can I join two switched circuits into one circuit?

I have a circuit for the kitchen lights w/two 3-way switches. I also have a circuit for the adjoining room w/three 4-way switches. Is there any way to safely join the two circuits and just use ...
1
vote
1answer
68 views

How can I make a splice in a 30 amp 240 circuit?

I have a splice in a 30 amp 240 corcuit. There is an outlet box on the three way splice. No junction on the extension from the initial cut to the three way splice. Please see the attached picture. ...
1
vote
1answer
268 views

Connecting neutrals in disconnect switch

Disconnects are an inexpensive way to connect two relatively large gauge conductors for 40-100A applications. However, most 240V disconnects only provide lugs for the two ungrounded conductors and the ...
1
vote
1answer
117 views

Splicing multiple LED lights

I've just built a TARDIS and I am about to wire up the lights for the windows, the sign boxes along the top, and the beacon light at the roof peak. I've bought and installed these three items: LED ...
1
vote
0answers
109 views

North Carolina Code question for splicing 6x6 posts

I have a 48 X 10 second floor deck with 6X6 posts. I want to add a roof above about half of it. It is not feasible to replace the 6X6's with longer ones as I would basically end up replacing the ...
0
votes
3answers
99 views

Electrical box caught on fire

A sub panel caught on fire just in the garage area. Do I need to rewire the whole house or can I just get a big junction box and splice all branch circuits and run it to my new electrical panel ?
0
votes
2answers
38 views

In wall splice for 4 wire cable

I have used an in wall splice with Romex 14/2 that has 3 ports (hot, neutral, ground) but i would now like to use the same method to splice a 12/3 cable. I'm unable to find a splice with 4 ports. Can ...
0
votes
1answer
374 views

Is there any reason to seal/waterproof underground spliced sprinkler cable?

Since there isn't an electrical current going through sprinkler wire, it's just a single pulse that gets sent from the controller to the individual valve, is there any reason to waterproof crimp ...
0
votes
2answers
2k views

How to splice 220 line to use for multiple uses

I have a 50A 220v box outside for use during a power outage to feed the breaker box on both bars. Since this is very rarely used, i'd like to use it to install a 'dryer plug' for a new shop heater. ...
0
votes
1answer
2k views

Why do my Christmas lights have a white polyester filament inside the thin rubber wire?

I have a pre-lit incandescent Christmas tree that was attacked by my cat. I'm trying to splice the wires back together. My string of lights has a "thick" rubber wire (16 gauge) and a "thin" rubber ...
0
votes
2answers
133 views

Concrete column splice - weld or surround with 6mm?

I have a concrete column using 16mm rebars. The column needs to be extended (and of course the rebars) for the 2nd storey of the house that is being built. Should the splice be welded or surrounding ...
0
votes
1answer
2k views

What Size Heat Shrink Tubing for Splicing Lamp Wire (SPT-2 18-2 AWG)?

I am splicing some lamp cables. The cable is SPT-2 18-2 lamp wire. First I will be using some vinyl insulated butt splices rated for 22-18 AWG and 600v to make the connection. Then, I want to cover ...
0
votes
0answers
454 views

House wiring crimp connectors?

Looking at one of my circuits (the one that had neutral and hot reversed), I found that the connection between the old cloth-insulated wiring and the newer plastic-insulated run had been made with ...