ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
sparky 5
Recent Posts
Permit Snafus...AHJs and Contractors Jump in
by sparky. 04/29/17 05:59 PM
201 volt equipment?
by bigpapa. 04/29/17 12:15 AM
Schneider LC1D09
by jraef. 04/28/17 11:05 PM
Electrode boilers question
by annemarie1. 04/27/17 01:40 PM
Why cables look like they do
by LongRunner. 04/26/17 09:36 AM
New in the Gallery:
SE cable question
Popular Topics(Views)
234,988 Are you busy
169,827 Re: Forum
163,024 Need opinion
Who's Online Now
0 registered members (), 46 guests, and 13 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
Page 1 of 2 1 2
#185462 - 03/15/09 07:40 PM New Service ran under garage pad into basement?  
mr_electrician  Offline
Member
Joined: Jun 2007
Posts: 106
London, Ontario
Hello, I am going to build a new house soon and I have a question for everyone. The way my house is situated and where the meter is going to be I am wanting to run from the meter base to the panel which means going through the foundation 2 times. 1st time to get under the garage pad and 2nd time to get into the mechanical room where my panel will be. Is there a risk of ground water seeping into the house. I was planing to go through the foundation right into the back of the panel.


Never trust an electrician with no eyebrows!!

Tools for Electricians:

#185468 - 03/15/09 10:35 PM Re: New Service ran under garage pad into basement? [Re: mr_electrician]  
ghost307  Offline
Member
Joined: May 2005
Posts: 900
Chicago Illinois USA
Use a link-seal around the conduit penetration if you're concerned.
Those things work great...and you can repair/replace them in the future if they ever fail.


Ghost307

#185469 - 03/15/09 10:51 PM Re: New Service ran under garage pad into basement? [Re: mr_electrician]  
Sandro  Offline
Member
Joined: Dec 2001
Posts: 444
Stoney Creek, ON, Canada
If you wish for this installation to pass code. You cannot enter directly into the back of the panel when through the basement foundation wall.


#185510 - 03/17/09 09:18 AM Re: New Service ran under garage pad into basement? [Re: Sandro]  
mr_electrician  Offline
Member
Joined: Jun 2007
Posts: 106
London, Ontario
Originally Posted by Sandro
If you wish for this installation to pass code. You cannot enter directly into the back of the panel when through the basement foundation wall.


Yes you are correct. I seen that in section 6 after I posted the question. I think I should pop up through the garage floor then LB into the mechanical room through the foundation. I haven't done alot of services....in fact mabey 3 in my career. Should I ground the neutral in the meter base or at the panel? Am I required to pull a bond wire between the meter base and panel?

Ask me an industrial installation question or programming question and I'm ggod to go. Residential services....I need brushing up on!


Never trust an electrician with no eyebrows!!

#185524 - 03/17/09 09:15 PM Re: New Service ran under garage pad into basement? [Re: mr_electrician]  
Sandro  Offline
Member
Joined: Dec 2001
Posts: 444
Stoney Creek, ON, Canada
Originally Posted by mr_electrician
Originally Posted by Sandro
If you wish for this installation to pass code. You cannot enter directly into the back of the panel when through the basement foundation wall.


Yes you are correct. I seen that in section 6 after I posted the question. I think I should pop up through the garage floor then LB into the mechanical room through the foundation. I haven't done alot of services....in fact mabey 3 in my career. Should I ground the neutral in the meter base or at the panel? Am I required to pull a bond wire between the meter base and panel?

Ask me an industrial installation question or programming question and I'm ggod to go. Residential services....I need brushing up on!


Ground the neutral at the panel. As far as I know, only Brantford requires a bond between mb and panel. Check with your local ESA.

Popping up through the garage floor is not a good idea.

The preferred way is to run your pipe in the garage floor through the wall as you originally intended. Then where the pipe enters the basement, put an LB sideways and put your panel to the left or right of the LB, not directly below!! Be sure to drill two small weeper holes and seal the LB with duct seal.

The purpose of the LB is to catch/stop any water from entering the panel.


#185528 - 03/17/09 10:41 PM Re: New Service ran under garage pad into basement? [Re: Sandro]  
leland  Offline
Member
Joined: Aug 2007
Posts: 853
Lowell area, Ma. USA
A meter is not a disconnect,unless a MB type. Then the house panel is a sub.


#185541 - 03/18/09 12:55 PM Re: New Service ran under garage pad into basement? [Re: Sandro]  
mr_electrician  Offline
Member
Joined: Jun 2007
Posts: 106
London, Ontario
Originally Posted by Sandro
Originally Posted by mr_electrician
Originally Posted by Sandro
If you wish for this installation to pass code. You cannot enter directly into the back of the panel when through the basement foundation wall.


Yes you are correct. I seen that in section 6 after I posted the question. I think I should pop up through the garage floor then LB into the mechanical room through the foundation. I haven't done alot of services....in fact mabey 3 in my career. Should I ground the neutral in the meter base or at the panel? Am I required to pull a bond wire between the meter base and panel?



Ask me an industrial installation question or programming question and I'm ggod to go. Residential services....I need brushing up on!


Ground the neutral at the panel. As far as I know, only Brantford requires a bond between mb and panel. Check with your local ESA.

Popping up through the garage floor is not a good idea.

The preferred way is to run your pipe in the garage floor through the wall as you originally intended. Then where the pipe enters the basement, put an LB sideways and put your panel to the left or right of the LB, not directly below!! Be sure to drill two small weeper holes and seal the LB with duct seal.

The purpose of the LB is to catch/stop any water from entering the panel.


Thats what I would like to do. I am just worried about water seeping in between my 2" PVC and foundation. Then again the soil under the garage SHOULD be dry all the time. Has anyone had a seepage of water from this method of installation? Also, what is the common wire used now for services on a 200Amp underground? 250MCM TWU75 Alluminum? Am I allowed to have my ground plate buried under the garage pad?

Last edited by mr_electrician; 03/18/09 01:03 PM.

Never trust an electrician with no eyebrows!!

#185572 - 03/19/09 09:42 AM Re: New Service ran under garage pad into basement? [Re: Sandro]  
mr_electrician  Offline
Member
Joined: Jun 2007
Posts: 106
London, Ontario
Originally Posted by Sandro
Originally Posted by mr_electrician
Originally Posted by Sandro
Originally Posted by mr_electrician
[quote=Sandro]If you wish for this installation to pass code. You cannot enter directly into the back of the panel when through the basement foundation wall.


Yes you are correct. I seen that in section 6 after I posted the question. I think I should pop up through the garage floor then LB into the mechanical room through the foundation. I haven't done alot of services....in fact mabey 3 in my career. Should I ground the neutral in the meter base or at the panel? Am I required to pull a bond wire between the meter base and panel?



Ask me an industrial installation question or programming question and I'm ggod to go. Residential services....I need brushing up on!


Ground the neutral at the panel. As far as I know, only Brantford requires a bond between mb and panel. Check with your local ESA.

Popping up through the garage floor is not a good idea.

The preferred way is to run your pipe in the garage floor through the wall as you originally intended. Then where the pipe enters the basement, put an LB sideways and put your panel to the left or right of the LB, not directly below!! Be sure to drill two small weeper holes and seal the LB with duct seal.

The purpose of the LB is to catch/stop any water from entering the panel.





4 ot AL is all you need. You won't get any leaks from garage. If you are really worried, just below where the pipe enters the foundation, put some stones/screening on top of the dirt to drain water away. And tar the hole.



Last edited by mr_electrician; 03/19/09 09:43 AM.

Never trust an electrician with no eyebrows!!

#185573 - 03/19/09 09:45 AM Re: New Service ran under garage pad into basement? [Re: mr_electrician]  
mr_electrician  Offline
Member
Joined: Jun 2007
Posts: 106
London, Ontario
4/0 Al for a 200 amp service? Can you give me a code reference for this one. I know of the 5% rule but 4/O doesn't fall within 5%. I am sure your correct as you have probably done 10 times more residential services than I. I just want to know how we are allowed to use 4/O on a 200 amp service.
I guess this is what happens after 6 years when you leave construction and go work in the plants. You forget things! It is all coming back to me though!


Never trust an electrician with no eyebrows!!

#185575 - 03/19/09 10:37 AM Re: New Service ran under garage pad into basement? [Re: mr_electrician]  
Sandro  Offline
Member
Joined: Dec 2001
Posts: 444
Stoney Creek, ON, Canada
Originally Posted by mr_electrician
4/0 Al for a 200 amp service? Can you give me a code reference for this one. I know of the 5% rule but 4/O doesn't fall within 5%. I am sure your correct as you have probably done 10 times more residential services than I. I just want to know how we are allowed to use 4/O on a 200 amp service.
I guess this is what happens after 6 years when you leave construction and go work in the plants. You forget things! It is all coming back to me though!


Table 4 of your code book. See the double star ** beside the 185? See the footnote. You can also use 2 ot copper!


Page 1 of 2 1 2

Member Spotlight
Admin
Admin
NY, USA
Posts: 3,439
Joined: October 2000
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.020s Queries: 16 (0.003s) Memory: 0.8225 MB (Peak: 1.0056 MB) Zlib enabled. Server Time: 2017-04-30 09:02:30 UTC