ECN Shout Chat
Recent Posts
Chinese motors rated 220 v 50 hertz
by gfretwell - 07/23/24 04:45 PM
100 Definitions: Accessible 2023
by gfretwell - 07/23/24 10:12 AM
100 Definitions, Likely to Become Energized, 2023
by gfretwell - 07/23/24 10:08 AM
240V only in a home and NEC?
by emolatur - 07/18/24 01:05 PM
2023 CEU Course
by gfretwell - 07/17/24 01:08 AM
Advertisement:-Left
Recent Gallery Topics:
This is a new one
This is a new one
by timmp, September 24
Few pics I found
Few pics I found
by timmp, August 15
Who's Online Now
0 members (), 646 guests, and 16 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Sep 2004
Posts: 174
B
bot540 Offline OP
Member
Does anyone know if emt is permitted outside in Chicago? I have to wire a pool and the run would be under a 3' deck with limited access. The install would conform with article 358.10.


Jesus may have been a capenter,but God was an electrician.Genesis1:3
Horizontal Ad
Joined: Feb 2003
Posts: 169
R
Member
Yes it's allowed exposed outside with "rain tight" fittings.

Joined: Feb 2003
Posts: 169
R
Member
I'm on my way to inspect a large gas station canopy lighting job. The contractor told me the new rain tight fittings (1/2" emt) cost him more than $3.00 each. Is that what their going for every where?

Well this price sounded so crazy, I just checked a supply house in the area.
All though they don't stock them ? ( guess nobodys asking for them )? I was told their about $0.40, sounds more reasonable.

[This message has been edited by russ m (edited 04-28-2005).]

[This message has been edited by russ m (edited 04-28-2005).]

Joined: Jan 2005
Posts: 5,462
Likes: 3
Cat Servant
Member
While EMT is legal, I would consider PVC in this application....chlorine is quite corossive. Just be sure to support it every four feet.

Joined: Feb 2003
Posts: 687
A
Member
bot540 I did not know I'm right next to you in Wildwood.

Adding to what has been said it is never a bad idea to check the amendments where you are working.

Tom

Joined: Feb 2003
Posts: 169
R
Member
PVC is usually not accepted exposed in Chicago.

18-27-347.2. Uses Permitted.
The use of listed rigid nonmetallic conduit and fittings shall be permitted under the following conditions:
FPN: Extreme cold may cause some nonmetallic conduits to become brittle and therefore more susceptible to damage from physical contact.
(a) Corrosive Influences. In locations subject to severe corrosive influences as covered in Section 18-27-300.6 and where subject to
chemicals for which the materials are specifically approved.
(b) Cinders. In cinder fill.
(c) Below a Slab on Grade. Rigid nonmetallic conduit shall be permitted when buried at least 24 in. (609 mm) below the floor slab.
All stub ups shall be galvanized rigid steel conduit or intermediate metal conduit.
(d) Underground Installations. For underground installations, see Sections 18-27-300.5 and 300.50.
18-27-347.3. Uses Not Permitted.
Rigid nonmetallic conduit shall not be used in the following locations:
(1) In any installation not permitted in Section 18-27-347.2;
(2) In hazardous (classified) locations, except as covered in Sections 18-27-514.8 Exception No.2 and 18-27-515.5 Exception;
(3) In Class I, Division 2 locations, except as permitted in Section 18-27-501.4(a), Exception;
(4) For the support of fixtures or other equipment;
(5) Where subject to physical damage unless identified for such use;
(6) Where subject to ambient temperatures in excess of 50oC (122oF) unless listed otherwise;
(7) For conductors whose insulation temperature limitations would exceed those for which the conduit is listed;
(8) In theaters and similar locations, or any other Place of Assembly.
18-27-347.4. Other Articles.
Installation of rigid nonmetallic conduit shall comply with the applicable provisions of Article 300. A separate equipment grounding
conductor shall be installed in the conduit, and shall comply with Article 250.
PART A. INSTALLATION

Joined: May 2004
Posts: 697
D
Member
I got a price of about $4 each a while back.

Dave

Joined: Jan 2005
Posts: 5,462
Likes: 3
Cat Servant
Member
Yes, PVC can be problematic in Chicago. I suppose, if the conduit were outdoors, under a wood, raised deck (as for an above-ground pool), and had lots of air circulation. the inspector might object.
On the other hand, if this were an indoor pool, where even the stainless hardware "rusts" to the aluminum diving board....or down in the "steel making" neighborhoods, where the paint flakes off new cars in two years....even a Chicago inspector would see the wisdom.
Corrosion, I suppose, is the key issue. Maybe run EMT- and a ground wire just in case?


Link Copied to Clipboard
Advertisement:-Right

* * * * * * *
Tools for Electricians
Tools for Electricians
 
* * * * * * *

2023 National Electrical Code (NEC)
2023 NEC + Exam Prep Study Guides Now Available!

Member Spotlight
cookcc
cookcc
California ,Long Beach
Posts: 28
Joined: May 2007
Top Posters(30 Days)
Popular Topics(Views)
323,566 Are you busy
247,882 Re: Forum
231,663 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5