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garuda777
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Join Date: May 2011
Posts: 18

Grounding Rod Material

11/14/2011 9:03 AM

Dear friends, I have one copper glad grounding rod of carbon steel insteed of stainless steel grounding rod. shall i put this grounding rod and any body can tell the electrical conductivity difference of carbon steel and stainless steel.
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PWSlack
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#1

Re: grounding rod material

11/14/2011 9:18 AM

Conductivity of the steels is not the issue. Corrosion resistance is more significant. As stainless steel has a far better corrosion resistance than carbon steel under everyday conditions it would seem appropriate to use the stainless steel rod, were a copper or copper-coated rod not available, and weigh the carbon steel rod in for scrap.

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electricalexpert65
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#2

Re: Grounding Rod Material

11/14/2011 10:29 AM

If one refers to the formulae given in the Standards for calculating the resistance to earth of various types of Earth Electrodes like Plate Electrode or Pipe Electrode or Strip Electrode, only the resistivity of the soil and the physical dimensions of the electrode play a major role in determining the electrode resistance to earth. The material resistivity is not considered anywhere in the formulae. Hence, irrespective of the material of construction of the earth electrode, any material of given dimensions would offer the same resistance to earth.

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SolarEagle
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#3

Re: Grounding Rod Material

11/14/2011 2:14 PM

I never heard of a SS grd rod always used copper clad....

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