HOW DO YOU PROVE THE HIGH VOLTAGE CABLES OR BUSBAR IS DEAD
EVEN AFTER IT IS DE ENERGISED
Answer Posted / 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 |
Post New Answer View All Answers
Is it good to short Neutral and Ground in the PLC or DCS main Power supply. Pls give YES or NO with reasons...? Simarpreet
what is transistors comprised of?
what is transient stability analysis means?
if flux and load static in dc motor and supply voltage increases 20% then what happened in speed
dc supply given to dc generator winding.how is possible? my knowledge is saying the winding will burn. please reply.
What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?
What is the form name of 'c' license, I want to download in web
what is the problem when i want to close a circuit breaker by local position it closes well.but when i close it in remote position it trips
number of I/O devices in siemense plc
use of choke in APFC panels
Distribution transformer we provided 2 separate earthing pit for Body and 2 separate earthing pit for neutral,we can not connect separate body earthing pit to other earthing pit but we do metal glanding in secondary side cable termination in both side, transformer and PCC panel (LT Panel), is this safe for transformer and other equipment?
if we install two earth pits with a clear space of 5m without any interconnection,by checking the digital multimeter will it show continuity between earth pits? If so what would be the approx. value
IN 1000kva transformer where the oil and winding temperature sensors is connected
Draw a block diagramof Three UPS systems connected in Parallel mode?
Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.