1.Earthing and Lightning protection meggar values should be what to install these system ?? 2.For Lighting circuit what should be the rating of ELCB and MCCB in the Distribution board ??

Anonymous
1y
1.Earthing System = less than 1 ohms Lightning Protection System = less than 10 ohms . 2.ELCB 300 mA MCCB 10A .
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