I was doing some welding in the workshop today using a cheap invertor welder.
It’s just a 13A plug in stick welder job.
Anyway I’m welding away and all of a sudden there was a loud bang from the end of the welding rod and all my electric went off.
Where the bang had happened there was some orange staining almost rust colour, and what ever happened managed to blow the plug fuse, trip the C32 local breaker and also the C50 submains breaker, as well as welding the MK socket switch in the on position. Fortunately it didn’t take the cutout which I think is an 80A BS88.
I’ve not taken the welder in bits yet but I’m wondering what could have caused this? I guess a biiiig current must have flown to take out all that circuit protection. Possibly somehow the welder has presented full mains voltage at the output cables? I’ll have to measure IPFC at this socket, and see if it’s high enough to take the magnetic trip on a C50.
It’s just a 13A plug in stick welder job.
Anyway I’m welding away and all of a sudden there was a loud bang from the end of the welding rod and all my electric went off.
Where the bang had happened there was some orange staining almost rust colour, and what ever happened managed to blow the plug fuse, trip the C32 local breaker and also the C50 submains breaker, as well as welding the MK socket switch in the on position. Fortunately it didn’t take the cutout which I think is an 80A BS88.
I’ve not taken the welder in bits yet but I’m wondering what could have caused this? I guess a biiiig current must have flown to take out all that circuit protection. Possibly somehow the welder has presented full mains voltage at the output cables? I’ll have to measure IPFC at this socket, and see if it’s high enough to take the magnetic trip on a C50.