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X-Proof Seals
by electure on 11/20/08 11:22 PM

With EMT blink

This is a commercial repair garage < 18" above floor level

Comments
#182197 - 11/21/08 12:26 AM Re: X-Proof Seals [Re: electure]  
NJwirenut  Offline
Member
Joined: Sep 2001
Posts: 806
Bergen County, NJ
Sealing fittings on EMT?


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#182202 - 11/21/08 03:13 AM Re: X-Proof Seals [Re: NJwirenut]  
NORCAL  Offline
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Joined: Sep 2002
Posts: 866
The set screw fitting also add a nice touch. EMT in a haz. loc.? Only thing EMT has value for in a haz. loc. is as a back scratcher.


#182261 - 11/22/08 04:50 PM Re: X-Proof Seals [Re: NORCAL]  
renosteinke  Offline
Cat Servant
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Joined: Jan 2005
Posts: 5,316
Blue Collar Country
I posted a similar pic, from a local propane distributor. Seal to EMT to PVC at ground level. This appears to be a far more common practice than I had thought.

Having learned about this stuff in the oil / chemical refining industry .... one wonders! The code speaks of 'qualified professional' .... and we see this thing that flies in the face of all logic.

I do wish someone would write a "How to" book about classified locations .... covering not just wiring practices, but defining the "zone."


#182265 - 11/22/08 06:45 PM Re: X-Proof Seals [Re: renosteinke]  
NORCAL  Offline
Member
Joined: Sep 2002
Posts: 866
I have a question for everyone. How many times have you come across sealing fittings installed without having the seal(s)poured?


#182276 - 11/22/08 11:02 PM Re: X-Proof Seals [Re: NORCAL]  
renosteinke  Offline
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Joined: Jan 2005
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Blue Collar Country
More than I care to think about.

Also common is an improper seal ... where the mortar has leaked past the packing, and solidified somewhere down the pipe.


#182280 - 11/23/08 06:35 AM Re: X-Proof Seals [Re: renosteinke]  
Trumpy  Offline


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Joined: Jul 2002
Posts: 8,211
SI,New Zealand
Was the plumber there before or after the pipework was installed?


Let's face it, these days if you're not young, you're old - Red Green grin

#182325 - 11/23/08 10:12 PM Re: X-Proof Seals [Re: NORCAL]  
frenchelectrican  Offline
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Joined: Feb 2003
Posts: 939
Wi/ Paris France { France for ...
Originally Posted by NORCAL
I have a question for everyone. How many times have you come across sealing fittings installed without having the seal(s)poured?


Rollie .,

This part more than i care to see it almost widespread when they do very poor job seal it off.

A very few area I ran into some are pretty smart to add a EXP union fitting but the cost will knock your feet off on this one.

Merci,Marc


Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)


#182326 - 11/23/08 10:15 PM Re: X-Proof Seals [Re: frenchelectrican]  
frenchelectrican  Offline
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Joined: Feb 2003
Posts: 939
Wi/ Paris France { France for ...
John { RENO }

I am pretty sure the NEC code book did mention about zone but don't have many picture how it should be defined at all.

I do understand the wording but really it should have few more photo to clearify the example what zone defiations descrbing it.

Merci,Marc

P.S. I think a photo section will really help alot for our members to understand more clear on the situation

Last edited by frenchelectrican; 11/23/08 10:17 PM. Reason: add quick P.S.

#182350 - 11/24/08 11:45 AM Re: X-Proof Seals [Re: frenchelectrican]  
electure  Offline


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Joined: Dec 2000
Posts: 4,259
Fullerton, CA USA
The classification is Class1 Div2. It is directly under a panelboard.

See NEC 511

The plumber ran the copper water line after the electrical installation.



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