Hi
I have an mcb which is on my kitchen circuit which is tripping, the installation is about three years old and although I undertook the installation it was was checked and signed off by a local electrical company for building regulations when I built an extension. it has a split load board of which only one side has an RCD.
The installation has been trouble free until last night when the mcb blew taking out the RCD, it reset and stayed on for about an hour when it blew again, it now will not reset, I have visually checked all plug fronts and connections and there is no obvious sign of mechanical damage or broken cable insulation. I have continuity on both neutral and live circuits from the consumer unit. The mcb is 32amp. The circuit normally has two freezers, a cooker hood,microwave and TV on it.
I have removed all appliances and removed all fused spurs from the ring main and disconnected an outside plug from this circuit. With nothing on the mcb keeps tripping.
There has been no D.I.Y in the house and the only thing out of the ordinary was the use of a battery charger on another circuit (about this time was when the mcb first blew) although the ring main where this was used is self contained and as I see it as coincidence, I have also used a 110v diesel fuel pump on the circuit which is tripping, I only say this as had a thermal overload protector which regularly cut in and out, could this have had a detrimental effect on a cable somewhere?
Is there any more I can do or check prior to the electrician being called?
Many thanks for any advice.
Regards
KB
I have an mcb which is on my kitchen circuit which is tripping, the installation is about three years old and although I undertook the installation it was was checked and signed off by a local electrical company for building regulations when I built an extension. it has a split load board of which only one side has an RCD.
The installation has been trouble free until last night when the mcb blew taking out the RCD, it reset and stayed on for about an hour when it blew again, it now will not reset, I have visually checked all plug fronts and connections and there is no obvious sign of mechanical damage or broken cable insulation. I have continuity on both neutral and live circuits from the consumer unit. The mcb is 32amp. The circuit normally has two freezers, a cooker hood,microwave and TV on it.
I have removed all appliances and removed all fused spurs from the ring main and disconnected an outside plug from this circuit. With nothing on the mcb keeps tripping.
There has been no D.I.Y in the house and the only thing out of the ordinary was the use of a battery charger on another circuit (about this time was when the mcb first blew) although the ring main where this was used is self contained and as I see it as coincidence, I have also used a 110v diesel fuel pump on the circuit which is tripping, I only say this as had a thermal overload protector which regularly cut in and out, could this have had a detrimental effect on a cable somewhere?
Is there any more I can do or check prior to the electrician being called?
Many thanks for any advice.
Regards
KB