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how to check the earth resistance value& what is the
minimum earth resistance for good earthing sysytem.
- 33 Answers
- 156010 Views
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Answers were Sorted based on User's Feedback
Answer / jaydeep parmar
value of the earth pit should be less then 2 ohm and earth grid value should be <1 ohm
| Is This Answer Correct ? | 428 Yes | 59 No |
Answer / tauseef tarique, engineer(e)
The earth resistance value can be checked by the use of
earth resistance tester (called megger earth tester). The
best earth resistance should be less than one ohm but the
permissible value is less than 5 ohm. For rocky areas it
should be less than 8 ohms.
| Is This Answer Correct ? | 318 Yes | 43 No |
Answer / pandiyarajan
Grid resistance value should be lessthan 1 ohm
| Is This Answer Correct ? | 209 Yes | 31 No |
Answer / aruna devi
By using earth megger .It should be less than 2ohm.
| Is This Answer Correct ? | 227 Yes | 72 No |
Answer / bhavini
earth tester use for measuring resistance of earth pit
should be less than 1 ohm.
| Is This Answer Correct ? | 105 Yes | 26 No |
As such there is no any standard of earth resistance value,
Its varies on different type of soil resistivity. Idley it
should be 0, but in different kinds of soil for electrical
equipment it should be better to below 10 Ohms and for
electronic equipment it should be better to below 5 ohms.
| Is This Answer Correct ? | 100 Yes | 28 No |
Answer / ramaraj.g
The earth resistance value can be checked by the use of
earth resistance tester (called megger earth tester). The
best earth resistance should be less than one ohm but the
permissible value is less than 5 ohm. For rocky areas it
should be less than 5 ohms.
we using the DMM in check the L - N , N- E ,E- L
this small calc
L-N - 230 v
N-E - BELLOW THE 2 VOLTS IS GOOD ERATH CONN
E-L - 230v IS RECONFORM TO GOOD EARTH OR NOT
L-N = E-L
| Is This Answer Correct ? | 77 Yes | 11 No |
Answer / bk sharma
It should be near <0.5 ohm for good earthing.
| Is This Answer Correct ? | 64 Yes | 11 No |
Answer / bhanu
earth testers are used. and it is checked wheathe earh
resistance range is from 1-2 ohm or not.
| Is This Answer Correct ? | 83 Yes | 39 No |
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