Bell Pallisey
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Window cleaner loses forearm when 33,000 volts jump from cable
A window cleaner lost his left forearm, and may never walk again, after suffering a 33,000-volt electric shock.
uk.yahoo.com
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I thought a OHP line that carries that type of voltage had to be 10 metres from the building, but if he had his flow up high and turned towards it this might have caused the power to jump across. Everyone is second guessing thoughI was under the impression that all these uninsulated cables running directly into old homes were 230v single phase.
I don't understand where the 33,000 volts figure comes from. Those higher voltages are cables leading the transformers which then reduce the voltage down for use in the home. If he was around the back cleaning windows, then there shouldn't have been 33,000 volts near the house.
Please correct me if I'm wrong. I'm confused.
We have a number of old properties that have overhead power cables to supply household needs. There isn't a transformer close to any house. Upleatham village is a typical example. The transformer is in the field nowhere near where any workman will be.I thought a OHP line that carries that type of voltage had to be 10 metres from the building, but if he had his flow up high and turned towards it this might have caused the power to jump across. Everyone is second guessing though
Again I think the first 2 metres from the wall should be insulated, but this insulation will breakdown over time so the older the property the more chance it isn't insulated.all the overhead power lines are uninsulated.
Yes I thought the same 33000 volts are the big cables on pilons and arnt generally near houses been out to many involved in fires usually they go into a transformer then it’s down rated to go into housesI was under the impression that all these uninsulated cables running directly into old homes were 230v single phase.
I don't understand where the 33,000 volts figure comes from. Those higher voltages are cables leading the transformers which then reduce the voltage down for use in the home. If he was around the back cleaning windows, then there shouldn't have been 33,000near the house.
Please correct me if I'm wrong. I'm confused.
Yes 230v lines are normally energised with around 400/600 amps between transformer locations as most homes especially older properties draw 100amp and newer builds 60ampsWe have a number of old properties that have overhead power cables to supply household needs. There isn't a transformer close to any house. Upleatham village is a typical example. The transformer is in the field nowhere near where any workman will be.
We have to pay attention when cleaning houses down the main road as all the overhead power lines are uninsulated.
Ordinary 230v from the grid can be very nasty, so we always need to keep on alert.
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