Hi all got an interesting question here, I've noticed the high 275kv voltage pylons around my area are having their insulators replaced. I noticed the men hanging on to the tower attached to ropes while swapping the insulators. Very interesting to watch.But how do they do it without bursting into flames? surely they cannot do that live! it needs to be turned off but how? I image if they just turn it off then a good part of the town will lose power. Do they perhaps go to the each hv substation where the pylon runs and at both ends sort of jumper link that hv circuit which the run they are working on originally supplies from another live hv circuit to maintain the power and then disconnect the run at each end from both HV substations?
sorry if it doesn't make much sense. They were only changing one side of the pylon so I would guess the other side was live. cheers
sorry if it doesn't make much sense. They were only changing one side of the pylon so I would guess the other side was live. cheers
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