Spare cable - underground
Spare cable - underground
(OP)
hi,
I heard that it's not really good to leave a spare cable deenergize in an underground conduit
So, what do you do in that situation.
1 - Do you energize it but at only 1 end, so no current will flow into it. Is there a safety problem with the other end, how do you arrange it to keep it safe?
2 - Do you connect it in parallel with a another cable, let say phase B? But there, do you calculate the voltage unbalance that this can represent, since the impedance in phase B will be less than the other 2 phases?
3 - Any other idea?
Thanks
I heard that it's not really good to leave a spare cable deenergize in an underground conduit
So, what do you do in that situation.
1 - Do you energize it but at only 1 end, so no current will flow into it. Is there a safety problem with the other end, how do you arrange it to keep it safe?
2 - Do you connect it in parallel with a another cable, let say phase B? But there, do you calculate the voltage unbalance that this can represent, since the impedance in phase B will be less than the other 2 phases?
3 - Any other idea?
Thanks






RE: Spare cable - underground
RE: Spare cable - underground
Cables should always be assumed to be energized anyway, so safety issues should be manageable.
How long is the cable?
"The more the universe seems comprehensible, the more it also seems pointless." -- Steven Weinberg
RE: Spare cable - underground
Thank for the answer,
This isn't for a project, just by curiosity and if i'm in front of this situation later, i'll know what to do. So i don't know lenght of the cable, but what will be different if it's long or not?
I'm just wondering how do you arrange the cable at the end that isn't connected if it's in a switchgear. Do you roll it and put insulating tape on the end? or put a surge arrester only for this cable? I don't know how to place a cable end not connected of an energized cable.
thank