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