What do you do? - Page 2 - Electrician Talk - Professional Electrical Contractors Forum

mattsilkwood · 11-03-2009, 11:00 PM

I was talking about the 5" pipe. I haven't ran much of it but it was enough for me.

cdnelectrician · 11-03-2009, 11:03 PM

You mean conduit? hahaha sorry had to throw that in...

mattsilkwood · 11-03-2009, 11:06 PM

Quote:

Originally Posted by cdnelectrician

You mean conduit? hahaha sorry had to throw that in...

RIVETER · 11-03-2009, 11:22 PM

Quote:

Originally Posted by mattsilkwood

I was talking about the 5" pipe. I haven't ran much of it but it was enough for me.

I don't think that I could do it . The last BIG job that I was on was soooo big that they had Five inch pipe for handrails.

qckrun · 11-04-2009, 12:56 AM

Quote:

Originally Posted by cdnelectrician

I see...never seen that done before.

Neither have I until this job. The only reason why were doing it this way is because the pipe is being run in a arching tunnel, approximently 1/2mile long. By deep threading the pipe were able get just enough "kick"/bend out of the pipe that makes it uniformal to the other conduit ran there 20years ago.(they did exactly the same thing). Not to mention to bend 5" conduit you would have to send it off site to a place that has a bender for it, which our shop does not have. I will take pictures of it and show you guys, its really not as weird as it seems.

Were running 1 mile of 5" rigid, 1 mile of 3" rigid and 1 mile of 2" rigid down this tunnel under a wasterwater treatment plant.

Its a pretty wicked job... I will try to get as many pictures as possible.

MechanicalDVR · 11-04-2009, 01:42 AM

I've been threading pipe for the last 40+ years, have never heard of "deep threading". You can't close a die down much or you won't be able to get the pipe into the starting side. How does threading correlate to bending? You lost me there. As for getting oil on your arms, I can see the hands and feet but on your arms? I'd try a barrier lotion like this http://www.alibaba.com/product-free/...uid_Glove.html. Post some pics of "deep threading".

te12co2w · 11-04-2009, 09:26 AM

I don't understand the process of "deep threading". I get the point of why you are doing it though. Does it make up tight? But I don't see how you actually make the threads deeper. Maybe the dies are different when you get that big, but I don't see how to make it happen on the 2-1/2" to 4" head. Like dvr said, if you set the dies down, then it is the pits to get it started.

nolabama · 11-04-2009, 03:45 PM

Quote:

Originally Posted by qckrun

Deep threading it as in making the grooves alot deeper than normal so when you put the conduit on the rack you can cheat the pipe in the coupling and bend it without actually bending the conduit.

been there done that -after re-reading what he's doing no no i have not done that and would not recommend doing that

rewire · 11-04-2009, 03:56 PM

Dawn dish washing liquid

william1978 · 11-04-2009, 05:43 PM

Quote:

Originally Posted by qckrun

Its a pretty wicked job... I will try to get as many pictures as possible.

Please do it sure would help us understanding this deep threading.

nolabama · 11-04-2009, 05:51 PM

Quote:

Originally Posted by william1978

Please do it sure would help us understanding this deep threading.

i bet he is running the die about 15 or 20 threads down the pipe as opposed to about 10 and pulling a bit at the sleeve with the other pipe to cheat a quarter of an inch or so

william1978 · 11-04-2009, 05:53 PM

Quote:

Originally Posted by nolabama

i bet he is running the die about 15 or 20 threads down the pipe as opposed to about 10 and pulling a bit at the sleeve with the other pipe to cheat a quarter of an inch or so

That is what we call running threads.

nolabama · 11-04-2009, 05:55 PM

you can break the threads doing that - i would not want to cheat something like that - seems like you could do better just wacking the pipe a bit
whoops he's working with 5 inch

bward76 · 11-04-2009, 08:44 PM

I'm sure it's the way it was done years ago but that doesn't make it legal or correct now. It appears that you are cutting the threads a little deeper so that when threaded together the joint is sloppy and your "bend" is actually a crest where the ends of the pipe meet. I don't mean to be a buzz kill but what you are doing is not correct because the conduit is not being installed in the manner it was intended too by the factory or U.L.. I'm sure everyone thinks it's clever but there's no denying IT'S A SHORTCUT. I've ran plenty of 5" and it is way too heavy to be messing around with paper thin threads installed loosely. The unfortunate part is they possibly out bid with someone with the intentions of doing it correctly. Not to sound harsh, but I hate shortcuts. Just my 2 cents.

sparky105 · 11-04-2009, 09:29 PM

we just use slip couplings and weld it no thread oil nessacary

sparky970 · 11-04-2009, 10:23 PM

Maybe your company should buy the right bender it they are bidding jobs involving big conduit.

nolabama · 11-04-2009, 10:27 PM

Quote:

Originally Posted by sparky970

Maybe your company should buy the right bender it they are bidding jobs involving big conduit.

i second that - i really dont like haveing to try to do a job without the right tools or material - it guarantees a $hitty job

sparky105 · 11-04-2009, 10:45 PM

hope they are going to put grounds in because I don't think the pipe will meet the code being so loose

drsparky · 11-05-2009, 07:47 AM

I think he is "deep threading" to make the connection sloppy so he can move it a few degrees. I never heard of doing something so stupid. It is also violating code. How about being a craftsman and do the job correctly.