what is the difference between earthed and unearthed cable?

Answer Posted / rakhi kawatra

Earthed System : the neutal point or mid point connection
is earthed in such manner that even under fault conditions
he max. voltage that can occur between any conductor and
earth does not exceed80% of the nominal system voltage

Unearthed System : an electrical system which does not
fulfil the requirement of the earthed system.

Is This Answer Correct ?    10 Yes 7 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is the Connected Load (kW) or Contract Demand (kVA)of mahindra nasik plant??

8879


what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada

1434


How does HT work & Voltage required?

1738


why the active power flow of some line is increased when the active power of out is cut ?

1643


In a tap changing transformer where is the tap connected, is it connected in the primary side or secondary side?

710






Can we use 230VAC, 63A MCB for 120VAC, 63A supplied heaters load?

1024


What is meant by rotor?

800


how  do you choose the cable size as per amps rating & the voltage drop for the same.

1335


what is the purpose that we use PLC system in power system

4183


WHAT ARE THE DATAS REQUIRED FOR PROTECTION AND METERING AND CONTROL AND LOGIC PREPARATION,HOW TO STUDY THE PROTECTION AND METERING?

1685


Differnce between negative Pahse SequenceFunction and unbalance Function?

1291


what are the analog quality input for protection function?what are minimum reqiments?

1406


How does a digital electronic meter work??????

1604


if we have 320KVA Genset kindly advice how much load we can put it.

1010


What is meant by positive and negative feedback?

623