Grounding Conductor
Grounding Conductor
(OP)
Hi,
I intend to use stainless steel wire instead of copper as grounding conductor. I understand that copper is a far better conductor than steel. Is there any regulation which prohibit the use of stainless stell as earthing conductor?
Thanks for any advice.
Grundig
I intend to use stainless steel wire instead of copper as grounding conductor. I understand that copper is a far better conductor than steel. Is there any regulation which prohibit the use of stainless stell as earthing conductor?
Thanks for any advice.
Grundig






RE: Grounding Conductor
RE: Grounding Conductor
Bill
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"Why not the best?"
Jimmy Carter
RE: Grounding Conductor
I came across this thread while googling for earthing conductors. Although stainlees steel is not used as horizontal conductor as per coded practice, stainless steel IS widely used as grounding electrode. I believe that because of the physical properties of stainless steel as electrical conductor,stainless steel should not be favoured as grounding electrode.
Guardiano
RE: Grounding Conductor
RE: Grounding Conductor
Grounding Electrode Conductor Material.
The grounding electrode conductor shall be of copper, aluminum, or copper-clad aluminum. The material selected shall be resistant to any corrosive condition existing at the installation or shall be suitably protected against corrosion. The conductor shall be solid or stranded, insulated, covered, or bare.
Sizing is based on table 250.66, which just contains sizes for the above-mentioned materials.
If your installation is in the USA, you can't use stainless steel wire.
RE: Grounding Conductor
There have been several papers written on corrosion in stainless steel ground rods. It was a from of stress corrosion. A copper or copper coated ground rod corrodes efenly over it entire surfacel Astainless rod is subject to inter granualr or stress corrosion an all the corrosion may occour in a localized area and got through the rod.
I have the articla somewhere, it convinced me never to use stainless ground rods.
RE: Grounding Conductor
Guardiano