Can You Splice A Service Line That Is To Short
Originally Posted past nap 
I would never suggest downsizing wire in the middle of a run. While it would exist legal if using a 20 amp breaker, due to the altitude, the larger wire would be better anyhow but if he ever figured out how to utilise the wire in place for a larger breaker in the future, he would have that trivial section of #12 to exist restrictive to the higher amperage.
It's just better to keep with what you have, especially since it volition exist well hidden.
Yep and there is no inspector on the planet that is going to permit a feeder be downwardly sized from #four Al to #12 Cu in the eye of a run due to harm like we have hither. I'm not sure where the #2 came from..... his description says 4 awc which should be iv awg so I recall awc is a typo or a miss read of the cable lettering.
The problem I see hither is the OP is concerned about cost...cost tin cause conclusion making to lean towards minimum requirements....
In virtually cases nosotros would splice this break in the feeder in a quazite type mitt hole box if cost is non a cistron. Or if toll is a priority we would simply do a straight bury splice. Using 3 connectors if possible or 6 depending on length of wire existing.
Merely Chris says a 'swampy expanse' so I can't in good faith recommend whatever connector direct buried or manus hole spliced but a submersible rated connector like a polaris blue.
The burying depth is a big problem as everyone mentions. Then you have the problem of down sizing to a 20 amp circuit from 4 AWG to something that volition fit a 20 amp breaker probably #10 awg but possibly #8 and but if the trench is 12 " deep and you gfci as a branch circuit not a feeder. This solution is just too splice crazy to me....
My personal opinion based on what Chris has said for the best installation as for workmanship and safe and minimal toll is to carelessness the existing broken feeder and dig information technology up and then install at 12 " a 10/2g or ten/3g uf b cablevision (for voltage driblet at max amps for 20 amp excursion 120 volt circuit and 150 feet) depending on whether you lot desire two xx amp circuits or one at the garage..... Save the #four for subsequently use or recycle it.
Using polaris connectors, assuming merely 3 needed and enough slack, and cached direct will exist around ninety dollars approx.. If installed in a hand pigsty similar a quazite another 75 dollars.
I'm not a fan of the cheap compress tube type connection kits though they are rated for direct burial. If this is extremely moisture ground I wouldn't put a lot of faith in them.....
If he chooses to come above ground then make no splice below grade dig the feeder back plenty to get the splice so that it volition be made in a 3R enclosure above basis then bridge with pvc from splice box to splice box and pvc sweeps from underground to the splice boxes. Volition look rather goofy IMO but volition work.
The problem here is providing a inexpensive fix that Chris needs that is code compliant and rubber...not always an piece of cake recipe....
Can You Splice A Service Line That Is To Short,
Source: https://www.doityourself.com/forum/electrical-ac-dc/408550-broken-service-entrance-wire-garage-how-splice.html
Posted by: kingwern1962.blogspot.com
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