buried conduit repair

Your going to need to get a concrete or plastic junction box. You could use a valve box for sprinklers like what the home centers sell. All junction boxes must be accessible. You will end up with the cover showing on the surface. Which may or may not be an issue. Also you have to consider if your going to drive over the box cover. There are j-boxes made for light and heavy traffic. They will have steel covers. I have not bought one in ages so I will not speculate on cost. Call a electrical wholesaler.

As for the water proof part you will have to make the splices water proof. The conduit can be filled with foam made by 3M but you will never pull the wires out or pull new in. I suggest you use a hydraulic crimper to do the splicing. You can buy waterproof splicing kits from 3M or Raychem. Probably other manufactures these I have used in the past. Everything I have used was medium voltage, I know they make low voltage kits as well. Guessing $45 each splice

If your interested in replacing the wire then you could buy an pvc expansion joint for the installation. Glues right on to the pipe and then expands to a set distance. I have not used them for years so check with an electrical wholesaler for exact dimensions.

Something like this?

Splicing in that would be a violation. Used those before, pretty cool actually if the wiring is not hurt.

Why do you think the conduit is a dry location? In fact underground conduits are considered wet locations. Are you planning on pulling the conductors out to repair this? If so just cut out the bad section and use repair couplings (the kind without a shoulder inside). Slide the couplings over the cut ends, fit another piece of conduit where you cut the bad piece out, glue it up and slide the repair couplings over the joints. If you just want to seal it up you could wrap some U/L duct tape (for the purists) around the bad spot and pour some concrete around it.

Try this

Zathera,

What would it be in violation of? Feel free to quote the National Electric Safety Code.

Regards,

John Phillips

Bob

There are underwater splice boxes and the like. We used them occassionally. Try

Just throw some duct tape on it :-)

As long as the wires and jacket insulation is intact, cutting a 1-1/2" Schedule 80 PVC length-wise to use as a sleeve is a solution. (For strength the longer the sleeve overlapps the good section the better.) You can glue the sleeve in place with PVC cement. Make sure you clean the overlap area to be patched thoroughly with the PVC primer. Don't forget to glue the sleeves seams together. To hold the sleeve in place until the cement sets-up use bailing wire. If you wish you can also cover it with Duct Tape. (Seriously! no joke!)

If the wires jacket insulation has a minor tear, without any damage to the conducting wires inside, use a GOOD known brand of electrical tape and/or rubber splicing tape to cover.

Deron B

Exactly. If I don't have to do any splicing (I haven't excavated enough yet to tell) this looks ideal, thanks.

I'm in no hurry, so assuming I don't need room for splices and EPR is reasonable in it's ordering procedures, I'll go that way. Thanks for the "backup" idea :)

In article , snipped-for-privacy@certsoft.com says... | Exactly. If I don't have to do any splicing (I haven't excavated enough | yet to tell) this looks ideal, thanks. | |

I don't know what the regulations might be in the US, but in the UK you can buy underground cable splicing kits made by 3M. They are comprised of a clear plastic two part former, with a plastic bag of what seems to be some sort epoxy resin. The bag is divided in two parts by a clamp until needed.

The joint is made, the two halves of the former are clamped around the joint, then the epoxy mixed in the bag. Once ready you pour this into a hole in the top of the former. I suggest this type of joint might solve your problem and does not require an access/inspection hole to be built.

Called 'ScotchCast'

And I thought Scotchcast was only for broken arms. :-)

I thought it was only for underground splices till I checked 3M products list.