What is the normal earth resistance?

Answer Posted / sethu

perfect earth value - 1.5 ohm
lighting arrest earth value - 1.7 ohm

Is This Answer Correct ?    2 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is miller crystal oscillator? Explain its operation?

663


which connection is safer series or parallel?usually which connection we prefer at home?

8287


How to test the Secure Elite 440 Multi function meter working condition.

1603


BSNL TTA EXAM QUESTION

1762


IF alternator SCR value will be high means what happen in alternator efficency at operating power factor of 0.8

3397






Explain difference between stand by earth fault and residual earth fault protection?

1524


In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.

1838


what will be the effect if you were using different brands of outlets?

1466


what is d check in dg 1500kva

1577


FEINGING DECREASES THE FLUX DENSITY IN THE AIR GAP. HOW?

1669


circuit diagram of trip circuit supervision relay

1583


dear sir/madam i want to get some knowledge about RRB EXAMINATION(section engineer) 1- what is minimum cut off 2- wht portion is major portion . 3- can any body provide Sample paper. thanks & regards ashish

1896


How much should be the load percentage for 15kva Inverter and Iinut & I output load with Calculations

1570


we use 400/5A ct and 35/roor3KV,/0.1/root3KV,0.1/root3KV pt ratio. What is the multiple factor of this meter.

1563


In motors how many types of cooling systems were used?

1571