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 |
What are the classifications of oscillators?
what is load vs Torque curve & why it is used?
Why we Specify Transformer rating 433 V Instead of 415V ?
why the name mho relay,despite the locus of circle is impedance?
What will happen if we introduce negative feedback to a control system that uses a positive feedback?
What is power factor?How to improve power factor
The ohm is the unit of:(a) Charge(b) Resistance(c) Power(d) Current
how does high earth to neutral voltage affect electronic equipment?
why the single phse machine can not run by the three phase supply.
which type of motor complete it's one rotation in 30 day's.
What is the basic of DTH.
how to calculate the multiplication factor in HT incomer trivector meters
9 Answers Dalkia, Getco, Gujarat Energy Transmission Corporation Limited GETCO,