ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
Questioning the electrical norms
by LongRunner - 09/23/20 06:38 AM
Smoke & mirrors?
by HotLine1 - 09/21/20 03:42 PM
Pool Lights?
by Papa - 09/18/20 05:26 PM
Ever been afflicted by Gout?
by mbhydro - 09/15/20 05:50 PM
120/208 gives 240? please clarify
by NORCAL - 09/13/20 01:08 AM
New in the Gallery:
Facebook follies, bad wiring
FPE in Germany pt.2
Who's Online Now
0 registered members (), 12 guests, and 9 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Rigid Metal Conduit/Expansion Fittings? #103495 08/30/02 01:56 PM
Joined: Oct 2000
Posts: 2,749
Joe Tedesco Offline OP
Member
[Linked Image]

Question: Are these fittings at the lower left permitted to be encased in poured concrete?


[This message has been edited by Joe Tedesco (edited 09-02-2002).]


Joe Tedesco, NEC Consultant
2017 / 2014 NEC & Related Books and Study Guides
Re: Rigid Metal Conduit/Expansion Fittings? #103496 08/30/02 04:53 PM
Joined: Nov 2000
Posts: 2,148
R
resqcapt19 Offline
Member
Joe,
That could be a Crouse Hinds type XD, Expansion/Deflection Coupling. If so the catalog says that they are suitable for use embedded in concrete. I think that other companies have similar products.
Don


Don(resqcapt19)
Re: Rigid Metal Conduit/Expansion Fittings? #103497 08/30/02 05:15 PM
Joined: Oct 2000
Posts: 2,749
Joe Tedesco Offline OP
Member
Don: Thanks, I found this on the TradeSlang Site.

Description

Expansion Deflection couplings (joints) are fittings that allow for 3/4" movement in any direction between two pieces of Rigid, IMC or PVC conduit.

The deflection term comes from its ability to bend up to 30 degrees. They are typically used when the conduit has to withstand vibration from machinery or vehicles.

Made by Crouse-Hinds, OZ Gedney and others, they come in sizes ranging from 1/2" to 6".



[This message has been edited by Joe Tedesco (edited 09-02-2002).]


Joe Tedesco, NEC Consultant
Re: Rigid Metal Conduit/Expansion Fittings? #103498 08/30/02 06:04 PM
Joined: Nov 2000
Posts: 2,148
R
resqcapt19 Offline
Member
Joe,
Were they used in this case to correct a misalignment between the sections of conduit?
Don


Don(resqcapt19)
Re: Rigid Metal Conduit/Expansion Fittings? #103499 08/30/02 06:16 PM
Joined: Oct 2000
Posts: 2,749
Joe Tedesco Offline OP
Member
No, I suppose they were installed because of the expected vibration from vehicles.


Joe Tedesco, NEC Consultant
Re: Rigid Metal Conduit/Expansion Fittings? #103500 09/15/02 08:10 AM
Joined: Sep 2002
Posts: 131
T
tsolanto Offline
Member
I was at at Yankee Stadium last week and as I was passing the train tressel when I noticed what looked like the connectors in your pictures. It appears that they were used to absorb vibration from the trains.


Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
RonKipperDatacom
RonKipperDatacom
Kansas City, KS
Posts: 30
Joined: January 2013
Show All Member Profiles 
Top Posters(30 Days)
Trumpy 8
NORCAL 3
Popular Topics(Views)
270,006 Are you busy
204,408 Re: Forum
192,620 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3