Home Improvement Stack Exchange
Home Improvement Stack Exchange

Questions tagged [splices]

25 questions
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votes
1 answer

NEC 250.148: Can I splice separate circuit grounding wires to a junction box's grouding wire, resulting in a single grounding wire exiting the box?

Working on my first electrical project (laundry room conversion), so all of this is new to me. I'm splicing one 20A and one 30A circuit within a steel junction box to transfer from NM-B to THWN-2 for feeding through LFNC conduit to my outdoor…
Chris
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2 answers

How should I splice NM cable to get through a replacement beam?

I'm remodeling my kitchen and removing a load bearing wall. Existing triple 2x10 beam has cables that pass thru it via drilled holes. Structural engineer has spec'd a W8x24 I-beam to replace the existing triple-beam. (The I-beam will be hidden and…
peinal
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What's the preferred method for connecting #8 wires in a junction box?

I have several floor joists in my basement that need to be sistered up but unfortunately the 8 gauge wire that powers the AC compressor runs diagonally through all of them. Disconnecting it from the AC unit or at the panel aren't very good options…
Matt Whitehead
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Low-voltage splices behind Drywall without junction box access?

For 120VAC, I know that 'splices' in NM/Romex are not allowed behind drywall: there must be a junction box to inspect the splice. For low-voltage, such as CATV, how big of a deal is it? The previous owner left my house with a CATV splice (pictured…
whiskeychief
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Where am I likely to find a hidden NM-to-K&T splice?

I am trying to understand electrical work that was done on my house before I bought it. It's a 1922 build with a lot of original knob and tube wiring. What follows are some details, but the question is summarized at the end. I have mapped out all…
Sort of Damocles
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Can I splice multiple wires in a larger box with smaller enclosed outlet boxes?

Can I splice multiple wires in a larger box with smaller enclosed outlet boxes for each splice or do I need to keep each splice separate? I had a fire that burned most of the home runs to the attic and I have replaced all the full-length home runs…
user170910
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3 answers

How strong is a strong tie splice to weight placed in it from above?

Check out this roof truss bottom chord. It has a strong tie splice in the middle connecting two beams. I'm not entirely sure how the forces worse here - how strong is this tie weight placed on it from above? Given that this chord is spliced, should…
user48956
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Splicing Feeders from Meter/main shutoff to multiple sub panels/outbuildings

Thanks to anyone who has the time to help me out. I will explain my situation and then ask follow up questions. I have property with a 600' driveway leading to a cabin (a small workshop). There will also be a detached garage about 250' into the…
VTcabin
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2 answers

Moving 240v disconnect box

I have an outdoor 240v disconnect with 6awg cable (red/white/black/green) running from the main breaker to this disconnect box. There's a 110v GFCI-protected branch circuit that goes to some wall sockets. The 240v is for a hot tub about 6'…
GeoffM
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Can I splice NM-B cable in the ceiling?

I am moving my bathroom exhaust fan from its current location to 2 feet farther, over the shower cabin. I need to extend existing wire for this. I can't fish new wire because existing wire has been secured to joist/studs with nail/staples. As per…
user2716454
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Junction box from main to subpanel - what to do?

I am doing a DIY 400A service upgrade and I would like to get some vetting on my work before the utility connects it and the city inspects it. The meter/main combo is outside behind this wall of the garage and I have drilled through the wall to…
Alessio Sangalli
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Splice Inside Panel - Splice Neutral Or Attach To Bus?

When creating a splice inside a breaker panel cabinet, I know that you typically use a splice and pigtail to connect multiple hot wires to a single breaker. I have a circuit with a single device (switched ceiling light) on the breaker. I’m adding a…
DerbyDad03
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Where can I find a 90 degree splicer for #2 wire?

I'm wondering if anyone makes 90 deg connector for #2 wire, in my cade Aluminum THHN? Something like this:https://www.morrisproducts.com/pc_product_detail.asp?key=272FE6C8CABC4B35A79F44E287D7E943 I don't think Morris makes it in a 90 deg, but I may…
missin44
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Wondering if I am missing anything with my electrical system set up using Polaris connectors

I've received some great advice on here regarding my situation, and now I believe I have a good grasp on how to proceed. I will outline my situation and proposed solution, and would love to see what anyone has to say about it! I apologize to anyone…
VTcabin
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Ceiling junction box for splice

Can anyone tell me if there are any small junction boxes available out there ? I just want it for the Romex splice in the ceiling , that is it. I don't need that for any fixture. One I found is 4 inch round, Carlon old work box 18 cu. Inch. Although…
user2716454
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