Underground water pipe electrode in this case

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hhsting

Senior Member
Location
Glen bunie, md, us
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Junior plan reviewer
I have drawing which says underground water pipe is ductile iron and comply with requirements of NEC 2014 section 250.52(A)(1).

Would ductile iron qualify as underground water metal pipe or it would not per NEC 2014 section 250.52(A)(1) given its under 10 ft?
 

infinity

Moderator
Staff member
Location
New Jersey
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Journeyman Electrician
If it's under 10' in contact with the earth it doesn't matter what it's made of it does not qualify as an electrode.
 

augie47

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Location
Tennessee
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State Electrical Inspector (Retired)
If it's under 10 ft in direct contact with the earth it does not matter of what material, it does not qualify as an electrode.


opps posted on top of u
 

hhsting

Senior Member
Location
Glen bunie, md, us
Occupation
Junior plan reviewer
If it's under 10' in contact with the earth it doesn't matter what it's made of it does not qualify as an electrode.

Let me clarify a bit. Water pipe is 10 feet underground but comes up inside the building and GEC connection would be made aboveground 5 feet within entrance of building. However its made of ductile iron. Would that still qualify as grounding electrode or not?
 

LarryFine

Master Electrician Electric Contractor Richmond VA
Location
Henrico County, VA
Occupation
Electrical Contractor
If it's under 10' in contact with the earth it doesn't matter what it's made of it does not qualify as an electrode.
If it's under 10 ft in direct contact with the earth it does not matter of what material, it does not qualify as an electrode.
That was impressive! Bravo! 👏
 
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