Answer / a.c.subash

TYPES OF EARTHING ARE AS FOLLOWS,PLANT EARTH,INSTRUMENT
EARTHING.
REGARDING INSTRUMENTATION, SYSTEM GROUND SHOULD BE LESS THAN
1 OHMS AND FRAME GROUND SHOULD BE LESS 5 OHMS.EACH EARTH PIT
SHOULD BE SEPARATED FROM 5 METERS AWAY.

Answer / ashok

3 types of earthings are there.
1)Conventional-Using char coal and Salt
2)Chemical--using chemical
3)Normal ---Just put into earth

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