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Questions tagged [splices]

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2 votes
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Where am I likely to find a hidden NM-to-K&T splice? [closed]

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 ...
Sort of Damocles's user avatar
0 votes
1 answer
336 views

Splice box - how to use "polaris" connectors?

In the process to perform a DIY 400A main panel upgrade, I have spliced these wires coming from the new main panel to a cable that goes to a sub-panel. This is a pre-existing box where the same cable ...
Alessio Sangalli's user avatar
1 vote
1 answer
95 views

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 ...
Alessio Sangalli's user avatar
1 vote
2 answers
114 views

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 (...
DerbyDad03's user avatar
0 votes
0 answers
139 views

Can I make a wire splice in my main panel? [duplicate]

While installing an Eaton CHSPT2Ultra surge protector to panel I cut the wire to beaker too short. Can I splice the cut wire back on?
Rick Michaelis's user avatar
0 votes
0 answers
65 views

Code-compliant way of permanently wiring a hidden 120v appliance

I'm finishing my basement and want to install an inline booster fan for one of the bedrooms. The fan will be accessible by removing a rain shower head in the bathroom, since the duct runs right above ...
Egor's user avatar
  • 519
0 votes
3 answers
161 views

How to get upsized wire to fit breaker?

I want to run 60 amps (240 volts) to a subpanel, with a primary load of 40A. Because of the distance (270' between panels plus 165' from subpanel to pump) I am upsizing conductors to #2 Al. The 60-amp ...
cjc's user avatar
  • 101
2 votes
2 answers
570 views

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 ...
user170910's user avatar
5 votes
1 answer
388 views

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 ...
Chris's user avatar
  • 55
0 votes
2 answers
116 views

How does one remove wires from this wire joint / splice?

Pics of the joint / splice below. I need to remove 2 of the wires, and replace them with 2 new wires. (This is a defrost thermostat sensor for a refrigerator. The part number that needs to be replaced ...
thanks_in_advance's user avatar
2 votes
3 answers
586 views

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 ...
user48956's user avatar
  • 399
0 votes
1 answer
126 views

Re-wiring flood lights under soffits - had twisted splices in old wiring

I'm going to replace exterior flood lights (4 of them) that are mounted under soffits. When I looked into the current wiring, I saw that the wiring was coming from the switch (inside the house) to ...
JimCzek's user avatar
  • 217
3 votes
2 answers
3k views

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 ...
Matt Whitehead's user avatar
0 votes
3 answers
145 views

What's the smallest tool-less splice for 18awg wire?

I've got a bunch of 18awg thermostat wires that need to be spliced in tight spaces. Normally I'd use wago lever nuts because they can easily be installed and removed by others, but at 8.2mm thick they'...
Navin's user avatar
  • 101
0 votes
1 answer
623 views

Can you connect hot wire from a dimmer switch and daisy chain it to a regular switch

Can you connect hot wire from a dimmer switch and daisy chain it to a regular switch that controls a fan? and what happens when the dimmer is adjusted - does that mean less current is supplied to the ...
vardha's user avatar
  • 101
4 votes
2 answers
230 views

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 ...
peinal's user avatar
  • 1,271
1 vote
1 answer
265 views

Where can I find a 90 degree splicer for #2 wire? [closed]

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 ...
missin44's user avatar
  • 161
1 vote
1 answer
154 views

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 ...
VTcabin's user avatar
  • 31
2 votes
2 answers
1k views

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 ...
VTcabin's user avatar
  • 31
2 votes
2 answers
409 views

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 ...
GeoffM's user avatar
  • 143
1 vote
2 answers
561 views

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 ...
user2716454's user avatar
  • 1,165
2 votes
3 answers
638 views

Can I splice NM-B cable in the ceiling? [duplicate]

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 ...
user2716454's user avatar
  • 1,165
0 votes
0 answers
1k views

What is the rule of thumb for built up beams with splices

The attached spec would lead me to derive that I could build a beam out of many splices as long as the spliced member is overlapped by a non splice by 9" and nailed 4.5" out from the splice ...
Fresh Codemonger's user avatar
3 votes
3 answers
2k views

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 ...
whiskeychief's user avatar