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 |
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