ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
New tool
by gfretwell - 10/24/20 11:09 AM
Where is Everyone?
by Bill Addiss - 10/17/20 07:04 PM
Beyond Belief
by gfretwell - 09/27/20 12:03 AM
New in the Gallery:
Facebook follies, bad wiring
FPE in Germany pt.2
Who's Online Now
0 registered members (), 20 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Almost Looks Like The RMC Was Not Threaded In The T Condulet! #104748 10/20/03 09:29 AM
Joined: Oct 2000
Posts: 2,749
Joe Tedesco Offline OP
Member
[Linked Image]

OR was it because the rigid metal conduit was threaded into the T Conduit Body made of aluminum?

This was part of a lighting system on a floating dock where boats can be boarded for an ocean cruise, or taxi to the airport.


Joe Tedesco, NEC Consultant
2017 / 2014 NEC & Related Books and Study Guides
Re: Almost Looks Like The RMC Was Not Threaded In The T Condulet! #104749 10/20/03 11:27 PM
Joined: Jul 2003
Posts: 394
B
Big Jim Offline
Member
Judging from the condition of the GRC, I vote for massive corrosion.

Re: Almost Looks Like The RMC Was Not Threaded In The T Condulet! #104750 10/21/03 12:20 AM
Joined: Aug 2002
Posts: 1,081
T
ThinkGood Offline
Member
Is any of this listed for use in a corrosive environment, such as near salt water?

Is there such a special listing requirement?

[This message has been edited by ThinkGood (edited 10-21-2003).]

Re: Almost Looks Like The RMC Was Not Threaded In The T Condulet! #104751 10/21/03 08:38 PM
Joined: Apr 2002
Posts: 7,211
HotLine1 Online Content
Member
Joe:
I'll have to cast a vote that the conduit was "pulled" out of the (probably) aluminum condulet. You said "floating dock"......someone possibly forgot to take that into consideration when they made-up the pipe. Movement, or possibly "contraction" due to the length of the run and the temp when it was installed can factor in also.

John


John
Re: Almost Looks Like The RMC Was Not Threaded In The T Condulet! #104752 10/21/03 08:41 PM
Joined: Apr 2002
Posts: 7,211
HotLine1 Online Content
Member
Think Good:
Yes, there is PVC coated RGC for corrosive areas. It's a BEAR to work with!!

Sch 80 PVC, if otherwise suitable for the location is the preferred. That is, after checking the spec, plans, and assuring that it's otherwise approved for the intended install. And, you can't forget the expansion joints.

John


John
Re: Almost Looks Like The RMC Was Not Threaded In The T Condulet! #104753 01/04/04 08:56 AM
Joined: Jan 2004
Posts: 91
R
rizer Offline
Member
two dissimilar metals causes galvanic action. is the use of penetrox (or its equivalent) be used and comply with code. as to the installation the lazy electrician probably crossthreaded the pipe and after one thread caught left it that way. I agree that plastibond or ocal should have been used and the condulets cost a fortune.


Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
NickD
NickD
Amish Country, PA
Posts: 46
Joined: March 2013
Show All Member Profiles 
Top Posters(30 Days)
BigB 1
Popular Topics(Views)
271,002 Are you busy
205,005 Re: Forum
193,123 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3