HOW DO YOU PROVE THE HIGH VOLTAGE CABLES OR BUSBAR IS DEAD
EVEN AFTER IT IS DE ENERGISED
Answers were Sorted based on User's Feedback
Answer / dhandapani muthu.r, je tneb, i
Unless otherwise it is discharged and earthed it should be
treated as energised. We have to discharge and eath that
bus or cable with a set of earth rods. Then only it is
proved. We could also use a remote sensor to prove that it
is dead.
Is This Answer Correct ? | 13 Yes | 3 No |
Answer / rod
As we are dealing with high voltage it is critical that the
correct procedure is used. 1/ A switching sheet should be
used to ensure that both sides of the test point is
isolated locked and tagged, 2/ A Modiwak (HV sensor) should
then be tested on a known live source first then the
isolated point should be tested and the Modiwak should then
be retested on the known live source, this ensures that the
Modiwak is functional, 3/ Then dressed in the correct PPE
earths may be installed, making sure the the earths are of
a size for the fault level at that point.
All the previous answers are partly correct but to prevent
accidents it is esential that a strict procedure is used.
Is This Answer Correct ? | 8 Yes | 0 No |
Answer / hassan
BOTH SIDES BREAKER OPENED , DE-ENERGIZED AND EARTH APPLIED.
Is This Answer Correct ? | 7 Yes | 3 No |
Answer / giri
Nowadays we have got HT sensors which will give indication
when it is brought near the live bus bar.
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / kedar
After taking all the necessary steps to discharge the bus-bars even then u r not confirmed. Then you should use a special meter which works on induction principle which senses the magnetic field of the bus bar and will tell u whether the bus is discharged or not.
Is This Answer Correct ? | 0 Yes | 2 No |
Answer / siddharth tayade
unless there is nothing any potential refrence to earth and
bus
Is This Answer Correct ? | 0 Yes | 3 No |
How many homes can a 500kva transformer supply in S.A
types of central Air conditioner plant?
Types of tempering of energy meter?
why we connect dg neutral with ground?
Explain about Leakage Test.
What is effect of power factor on change in voltage
13 Answers APNPDCL, apspdcl, My Home Industries,
What different between kw and kva. why maser AC in kva.
No load efficiency of transformer is ___________ than full load efficiency
What do you mean by a voltage transformer?
We have got the HT connection of 1000 KVA in which we have installed a seprate APFC panel at the PCC end & seprate KWH meter is installed. My question is that does the KWH reading shown in the meter is a part of the Consumption ???? ( approx 500 units is shown)
how to find out capacitor range?
It is a three inch fan and i want it to rotate to other direction .I've tried cutting the wire and reconnecting them inverse like black to white and white to black ,but it won't start rotating when i plug it in that way.And then it works again when i rejoin the wire to the way it is. I don't know what causing the problem.Is there anyone familiar with these small mortor?Any suggestion would be appreciated.Thanks!! http://i296.photobucket.com/albums/mm163/sasukebloodwheel/110527-105859.jpg