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Repairing a pipe with a wire in it

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Repairing a pipe with a wire in it MiamiCuse 10-07-2007
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Posted by MiamiCuse on October 10, 2007, 9:22 pm

> MiamiCuse wrote:
>>>>> Hi I have a 1-1/2" PVC pipe that goes underground. Inside of it
>>>>> carries an
>>>>> electric wire (looks Romex).
>>>> It shouldn't be Romex, as that is not approved for underground use.
>>>> So double check the cable type--if it is Romex, you need to replace
>>>> the whole cable, in which case your conduit repair problem is much
>>>> easier.
>>> True, but if it is gray and looks like Romex and is marked UF, it is the
>>> right wire for underground work.
> ...
>> It looks like romex color is black. I cannot see any markings due to the
>> short section it's broken off and I hesitate to break off more just to
>> see where it may have markings.
>
> I wouldn't sweat/worry about it -- being as you're in an area w/ code, I'd
> assume proper material would have been used...
>
> As noted in another reply to Edwin who says he saw repair fittings for
> plastic, go to your local electrical distributor and get what you need...
>
> --

Thanks!



Special 468x60
Posted by dpb on October 7, 2007, 11:54 am
MiamiCuse wrote:
> Hi I have a 1-1/2" PVC pipe that goes underground. Inside of it carries an
> electric wire (looks Romex). ...
> broke this small PVC pipe with the wire in it.
>
> Now, I have dug up the dirt and wanted to repair this pipe.
...
> Do they have any plastic sleeves or pipes that are actually two half pipes
> that you can fit and glue together or something like that?

I'm not aware that there are any manufactured for the purpose, but that
doesn't say there aren't and someone else may point you directly to one.

For electrical conduit, though, that doesn't have to be pressure-tight
as plumbing, I would make my own and glue it in place rather than
introduce a splice into the buried conductor (assuming they didn't break
it as well which I gather from the post they didn't or you wouldn't have
the problem as stated... :) ).

You should be able to split a couple of connectors closely enough that
with some work can make a couple pieces fit adequately and with liberal
glue it would hold well enough. Note that plastic electrical conduit is
_not_ the same material as plumbing so you'll want to get the proper
fittings from the electrical section, not plumbing.

--

Posted by Edwin Pawlowski on October 7, 2007, 12:12 pm

>> Do they have any plastic sleeves or pipes that are actually two half
>> pipes that you can fit and glue together or something like that?
>
> I'm not aware that there are any manufactured for the purpose, but that
> doesn't say there aren't and someone else may point you directly to one.

Yes, do a Google search for conduit repair and you will find them. I was
looking for a repair of a 2 1/2" metal conduit connector but could not find
one but I did see material for underground plastic. This is going to be a
real PITA for me with 300 feet of conduit on a wall with 480V 3 phase in it.
.



Posted by dpb on October 7, 2007, 12:18 pm
Edwin Pawlowski wrote:
>>> Do they have any plastic sleeves or pipes that are actually two half
>>> pipes that you can fit and glue together or something like that?
>> I'm not aware that there are any manufactured for the purpose, but that
>> doesn't say there aren't and someone else may point you directly to one.
>
> Yes, do a Google search for conduit repair and you will find them. I was
> looking for a repair of a 2 1/2" metal conduit connector but could not find
> one but I did see material for underground plastic. This is going to be a
> real PITA for me with 300 feet of conduit on a wall with 480V 3 phase in it.

Sounds like...what happened?

I should have added for Miami to go to his local "real" electrical
distributorship -- they'll undoubtedly have just what he needs in stock.

--

Posted by Jeff Wisnia on October 7, 2007, 12:08 pm
MiamiCuse wrote:
> Hi I have a 1-1/2" PVC pipe that goes underground. Inside of it carries an
> electric wire (looks Romex). It runs under the pool deck from one side of
> the house, deck is a concrete slab and brick tiles on top.
>
> It runs under a small planter area about 3'x3' in size. My wife wants to
> plant some herb in there so I asked the landscape guys to remove all the
> existing fern looking plants in the planter area, they pulled them out
> quickly but had to use a pick axe to get to the roots. In the process they
> broke this small PVC pipe with the wire in it.
>
> Now, I have dug up the dirt and wanted to repair this pipe.
>
> The only thing is, I can cut out a 6" section of this pipe, there is a wire
> running through it, so it is in the way of me putting in a new section of
> the PVC pipe "sleeve". I cannot think of a way to repair it without cutting
> this wire, then insert the sleeve, the move the sleeve to one side, then
> mend the wire, the put the sleeve back.
>
> I kept thinking, there must be a gadget I am not aware of that can do this.
> Do they have any plastic sleeves or pipes that are actually two half pipes
> that you can fit and glue together or something like that?
>
> Thanks,
>
> MC
>
>

I'd think it best to avoid cutting the existing wire.

Can you see any markings on that wire?

If so, check it out, it may be a type rated for direct burial
underground use, in which case it wouldn't matter if the repair does not
end up completely waterproof.

I don't think you'll find a "split pipe" repair piece like you described
as an "off the shelf" part.

But, you could do this:

Go to a local Auto Zone or similar car parts place and find the body
repair area.

Buy some fiberglass cloth and some of the fiberglass resin/hardner which
is used with it. Bondo is one brand of such stuff.

Dig out the hole to give you good working access. Wash the dirt off the
broken pipe and wipe the outside down with acetone.

Stuff and/or tape something like pieces of corrugated cardboard into the
gaps in the pipe to bulk it out to somewhere near it's original diameter.

Pretending you are a medical technician, use the fiberglass repair
materials to "wrap a cast" over the area, building the fiberglass cloth
up to about 1/4" thickness and overlapping the unbroken parts of the
pipe by three or four inches.

Wait for the resin to cure, backfill the hole, and try not to think too
ill of your landscapers, who likely weren't warned about that pipe.

HTH,

Jeff


--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.98*10^14 fathoms per fortnight.

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