How to ground?

Reply

  #1  
Old 12-09-02, 12:57 PM
R
rmunk
Visiting Guest
Posts: n/a
How to ground?

I live in an old house that is not grounded and going to add a new circuit, so want to ground it. The water pipes are plastic though. can I ground to the sewer pipes? How about a grounding rod, how long must it be, etc.?
 
Sponsored Links
  #2  
Old 12-09-02, 01:11 PM
S
Member
Join Date: Jun 2002
Location: Brethren, Mi
Posts: 1,648
Received 0 Votes on 0 Posts
No grounding circuits to the piping,, if this circuit comes from the main entrance panel hook the ground on the neutral bar,, the same bar as the white wire hooks to. The panel itself should be hooked to a ground rod and it may possibly be hooked to a water pipe that goes underground.
 
  #3  
Old 12-09-02, 02:27 PM
J
Member
Join Date: Sep 2000
Location: United States
Posts: 18,497
Received 0 Votes on 0 Posts
Grounding an outlet does not mean connecting it to the ground. This would not be safe. It means connecting it to the panel, where fault current can flow through a low resistance path to the transformer. The earth is not low enough resistance to save your life.

You should have a couple of grounding rods, but that is to ground the panel -- it doesn't ground your circuits.
 
  #4  
Old 12-09-02, 03:08 PM
P
Member
Join Date: Feb 2002
Location: port chester n y
Posts: 2,117
Received 0 Votes on 0 Posts
Exactly how did you determine your Service is not Grounded?----It's imperative that your electrical Service be Grounded with a Grounding wire from the Service Dis-connect to Grounding Electrodes in contact with the earth. This is a bare conductor inside the Service panel that connects to the Neutral terminal bar-this is the terminal bar where all White wires into the panel connect. You must determine if you have this Grounding connection at the service before you concern yourself with Grounding receptacle circuits.
 
  #5  
Old 12-09-02, 08:20 PM
R
rmunk
Visiting Guest
Posts: n/a
How to ground?

The main panel does have a grounding wire that comes out of the box and connects to some water pipes under the house. But the pipes are hung under the house and the sections that use to be underground are now plastic. So I need to ground the main box. Can it be grounded to the sewer pipes? If I use a grounding rod how long should it be? Note: the house was built in the late 30's.
 
  #6  
Old 12-09-02, 09:36 PM
S
Member
Join Date: Jun 2002
Location: Brethren, Mi
Posts: 1,648
Received 0 Votes on 0 Posts
You do need to connect metal piping to the panel also in case of short to pipe,, so that sounds good. Now you need to add 2 eight foot ground rods, 5/8 of inch min of 8 ft apart and use acorn clamps. Use number 6 bare copper wire and feed thru the first clamp and on to the second. It was probably connected to metal pipe earlier and someone replace that piping without adding rods. This is a must to have the rods. Connect to the neutral bar in panel.
 
Reply
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: