1.

What are the specifications for procurement of grounding conductor and grounding rods?

Answer»

Grounding conductor, pad, rods etc. should have following specifications

a. Copper : 91.8 to 94.9% 

b. Zinc : 2.0 to 3.0% 

c. Tin : 0.8 to 1.5% 

d. Lead : 2.0 to 2.5% 

e. Iron : 0.5 to 1.0%

Impurities must be limited to the percentage specified below: 

a. Nickel : 0.3% maximum. 

b. Antimony : 0.3% maximum. 

c. Manganese : 0.04% maximum. 

d. Phosphorous : 0.04% maximum. 



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