Ground electrode requirement question

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  #1  
Old 09-02-16, 08:38 AM
J
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Ground electrode requirement question

At the moment, my system is grounded at the incoming water pipe (before the meter). I will be installing a ground rod very soon, but have a couple questions about requirements.
  1. How many rods are required/is one rod code compliant?
  2. Is there a minimum maximum distance from the panel/service entrance
  3. Is the space in the picture below sufficient?

This is my preferred ground rod location because the house is surrounded by concrete on the front (except the area in the picture), right side, and back.
The Left side of the house is free of concrete, but I would need to run about 30+ feed of connector wire to the rod to make the connection.
Around the corner from the gas meter is the SE cable into the basement.
There is already a hole drilled for a ground wire to a satellite installation that is now gone, so I have a path to get the wire outside.
I was present when the gas meter is installed, so I know where not to drive the rod.

for reference that space is about 1 1/2 feet by 8 feet.

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Old 09-02-16, 09:05 AM
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The GEC path should be as short and as straight as possible.

The rod needs to be in contact with the soil for 8' with the top flush or below grade.

Is that picture rotated 90 degrees?
 
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Old 09-02-16, 09:44 AM
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The code requires at least two electrodes -- your water service counts as one, and your additional rod would count as the the second. Should you choose to add more, they should be at least 6 feet apart. Anywhere you can get the rod driven to full depth is OK.
 
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Old 09-02-16, 11:41 AM
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Is that picture rotated 90 degrees?
Yes, the site did that when I attached it.

if you right click and open it in a new tab, it is oriented correctly
 

Last edited by Jon Mullins; 09-02-16 at 12:01 PM.
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