Earthing cross sectional area, Earthing conductor, Earthing corrosion, Delhi
Allowances in cross - sectional area of the earthing conductor to take the effect of corrosion into account.
Type of laying of the earth conductor.
conductors laid to soil having resistivity greater 100 ohm meters. 0 no Allowance
b) conductor laid in soil having resistivity from 25 to 100 ohms - meters - 15 percent
c)conductors laid in soil having resistivity lower than 25 ohm -meters or where treatment of soil around electrode is carried out. 30 percent
Copper bonded earthing in delhi
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