I would appreciate some thoughts on an electrical problem I have.
About a week ago we started to notice lights flickering in the house, these lights were on a lighting circuit and also those on a ring main circuit. The lights would flicker for 3 or 4 seconds, maybe once every 3 hours. Over the last week the situation has worsen and is now causing lights and electrical appliances to go off for a split second (indicating a significant and temporary reduction in the supply voltage).
I have tried to isolate the problem, with limited success, but I am able to conclude the following. If I plug any mains adaptor from a computer into any 13 Amp plug and then switch the 13 amp socket power on, the lights will significantly go off and on for 3 or 4 seconds, this will happen on all of the different ring main circuits in the house. And I can repeat this occurrence with a fair degree of consistency.
I would add that no overload breakers will trip as a result of excessive current or any of the earth leakage trips will operate.
What I am unable to get my head around, is how can the voltage significantly drop when no earth leakage or breakers actually trip? Any why does a low power device, such as the power adaptor, cause the voltage to drop?
I have had the electricity supply to the house checked and that’s OK.
I have attached a photo of the fuse board just in case that helps (The main isolator is on the bottom left and this then feeds the bottom buzz bar and a earth leakage trip in the middle left of the picture) . You will notice that a number of breakers are off as we just keeping essential equipment on (internet, fridge, etc).
About a week ago we started to notice lights flickering in the house, these lights were on a lighting circuit and also those on a ring main circuit. The lights would flicker for 3 or 4 seconds, maybe once every 3 hours. Over the last week the situation has worsen and is now causing lights and electrical appliances to go off for a split second (indicating a significant and temporary reduction in the supply voltage).
I have tried to isolate the problem, with limited success, but I am able to conclude the following. If I plug any mains adaptor from a computer into any 13 Amp plug and then switch the 13 amp socket power on, the lights will significantly go off and on for 3 or 4 seconds, this will happen on all of the different ring main circuits in the house. And I can repeat this occurrence with a fair degree of consistency.
I would add that no overload breakers will trip as a result of excessive current or any of the earth leakage trips will operate.
What I am unable to get my head around, is how can the voltage significantly drop when no earth leakage or breakers actually trip? Any why does a low power device, such as the power adaptor, cause the voltage to drop?
I have had the electricity supply to the house checked and that’s OK.
I have attached a photo of the fuse board just in case that helps (The main isolator is on the bottom left and this then feeds the bottom buzz bar and a earth leakage trip in the middle left of the picture) . You will notice that a number of breakers are off as we just keeping essential equipment on (internet, fridge, etc).