Mains Electricity Supply Voltage Drop


Does anybody have any ideas why my friend's electricity supply appears to reduce in power by the voltage dropping at around 6pm most evenings. The lights dim slightly and then go bright over a period of about half an hour on a regular cycle at roughly 5 second intervals. It stops and goes back to normal.
The house was re-wired about 10 years ago to then correct standards. They lost all power once which proved to be a poor connection within the meter and persuaded edf to re-wire the meter after a big argument as they wanted to blame their domestic wiring. That is an unrelated problem and is OK.
About 3 years ago the main wiring in the street shorted out and caught fire underground in several places lifting the tarmac. The whole street was out for about a week and generators were provided. This seems OK now and the present fault seems unrelated and happens at a regular repeatable interval.
There are no switched loads in the house coming on at this time.
Could street lamps starting up cause this type of problem?
Any idea appreciated.
Graham
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This sound very much like a supply fault. It could be anywhere in the supply. Last year a local pub was having problems with their supply. A quick test showed it was an external fault and it ended up with the road being dug up half a mile away to fix the fault.
Complain to your supplier.
--
Adam



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This sound very much like a supply fault. It could be anywhere in the supply. Last year a local pub was having problems with their supply. A quick test showed it was an external fault and it ended up with the road being dug up half a mile away to fix the fault.
Complain to your supplier.
--
Adam



Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

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