Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations Mike Lewis on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

Outdoor cable splice 2

Status
Not open for further replies.

bengi1234

Technical User
Nov 18, 2005
47
US
I have a 25 pair telephone cable that got dug up and ripped by a contractor with a bulldozer. I need to splice these back together as I cannot pull new ones through that conduit. I have enough slack to get the ends together. I am going to drop in a miniature concrete vault right there but it is going to get moisture, etc, still. Can anyone recommend a good cable splicer that would work for this and give me minimal headaches in the future?
 
I would hire this out to a cabling contractor. He will already have the tools ($$) needed and can install the splice case properly when done. Unless you have another reason you don't need a vault as most cases are direct burial rated.

The answer is "42"
 
Thanks I didn't want to have to pay someone for it but would prefer to just get the material and do it myself.
On the jelly beans, I used them to temporarily splice the pairs that were in use, but I don't think they will be good for more than a year or so ... don't they get easily corroded?
 
The purpose of the gel is to repel water and moisture. ScotchLoks do not corrode!

3M, amoung others, have a complete line of splice closures available. I think the handhole is a good idea. Then you will always know where it is, and is easily accessible.

If you haven't done splicing with a closure before, you might want to do some research on practices and procedures, so it is done right.

....JIM....
 
Madison have some inclosures that after you place the Scotchlocked pairs in it youpour in an epoxy resin to completly seal , it can then re-buried
Most of the Component Manufacturers have something similar
and you can get them from Electrical Wholesalers.
 
Scotch locks last forever, but a contractor will use "icky pick" 3M type 25pr modules. I would go with the contractor route, its a cleaner splice, and is easier to manage as it would be in one approx 8" long module.
 
Put a shrink wrap tube on one end of the cable, then splice and shrink the splice
 
benji1234....if the cable you are splicing has an ground
shield make sure you bond it back properly so the lightning
protection which i hope you have will work properly in
case of a lightnig storm to protect your system.

no problems only solutions

strmwalker
 
Hi guys, thanks for all the answers, very helpful. I am planning to go with the 3M gel over scotch locks. The conduit is at about 1.5' deep so I will put a little concrete box in the ground there like an irrigation control so I can get into it in the future if I start having any problems.
By the way SYQUEST, I have seen scotch locks corrode, I would estimate they were about 5-10 years old and were in a damp, badly sealed external vault. After I wiped away the mud, ants and black widows, they were wrapped in electrical tape and when I unwrapped the tape they turned to white powder and disintegrated in my fingers (while sharing 48v from my phone system.)
 

The above may help. It is a solutions guide from 3M. In your case i built it up as a buried case and a butt case. If you have enough materials to work with this will take up less room and only have one end to worry about moisture getting in. It has enough room to make up your connectors and bond the sheaths together. Use the reenterable cases with the pour in compound. This makes for a fairly watertight splice. Here in Louisiana if it in the ground, it going to get wet. These have worked well for me in the past and I have not had any problems.

Hell, there are no rules here - we're trying to accomplish something.
Thomas A. Edison

For the best response to a question, read faq690-6594
 
bengi,

That would be the odd one, although I did come across some non-gel UY ScotchLok™ connectors back in the early 1980s, if my memory serves me well, and 3M may have made a gel-less version at one time, so that is quite possible. But, for the most part from my experience if it has gel in it, nothing will get in there.(bugs, ants, water or otherwise)

strmwalker,

I'm glad you mentioned bonding/grounding the shield. I was going to, but it is covered in the practice and procedure. Then again, I wonder how many of the folks out there have ever read one and remember to do it.

....JIM....
 
Jim, yes, could have been an old gel-less one I guess. Good to know the gel ones don't do this. I'll be using a combination of scotch locks and gelled splice kit.
 
SYQUEST...thanks.it is amazing how many good cable guys
forget to bond and ground splices.but they do and after
the fact they remember when it too late and the damage is already done.i come from the old school check,double check,
and check again to make sure i have not forgot something.the
bonding and grounding of the outside cable we all work with
not only saves the customers eguipment it is also there to
protect our lives as well as the customers and anybody else that works around it.

no problems only solutions

strmwalker
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top