T
tri cal elec
Bit of a first post but Ive encoutered some dangerous going on today at work. Im not the finished article and im not here for no, if you dont know what your doing you shouldnt be doing it malarky. If any one can tell me what the ---- is going on it would be most appreciated.
The job is a lights gone out with a big bang heard in a toilette. So me and my more knowledgeable! collegue attend the job.
What I found was a first.
Haveing flicked the breaker on it wasnt the lights that seemed to be the problem but only some sparks comeing out of a piece of conduit. There is a blanked of what I presume old light switch. After the mcb had been turned on after about 20 seconds you would start to here popping and crackling going on it the conduit, then after 40 seconds of this it would backfire sparks and a flash out of the bottom of it. Its been fine for ages at least 2 years. I notticed that someone has put up some surface mounted trunking on the wall and screwed it to the wall with raw plugs, the thing is they have only gone and done it slap bang onto of where the conduit is running under the plaster, honestly you could not have done it better if there was no paster. obviousy this is the problem or at least thats what im inclined to think. however as I say its been fine for at least 2 years no one in the team has never had a problem with it and the surface mounted trunking has not been recently put up certainly not in the year ive been there.
Any way if your still following and not enranged my thinking is this
For what ever reason the fact that someone has gone and drilled a piece of trunking to a wall falling slap bang in the middle of some metal conduit burrried in the wall which is carrying three lives to a old blanked of light switching point has now affected the instilation. some where along the circuit there is a live leakage. what i mean is that the nick in the cable or cables is causing the electricity to leak out of the conductor which is all the cracking which can be heard in the conduit and the bright spark whihc fires out of the end of it.
What would you hae done just so I can clock if they actually no what they are doing
The job is a lights gone out with a big bang heard in a toilette. So me and my more knowledgeable! collegue attend the job.
What I found was a first.
Haveing flicked the breaker on it wasnt the lights that seemed to be the problem but only some sparks comeing out of a piece of conduit. There is a blanked of what I presume old light switch. After the mcb had been turned on after about 20 seconds you would start to here popping and crackling going on it the conduit, then after 40 seconds of this it would backfire sparks and a flash out of the bottom of it. Its been fine for ages at least 2 years. I notticed that someone has put up some surface mounted trunking on the wall and screwed it to the wall with raw plugs, the thing is they have only gone and done it slap bang onto of where the conduit is running under the plaster, honestly you could not have done it better if there was no paster. obviousy this is the problem or at least thats what im inclined to think. however as I say its been fine for at least 2 years no one in the team has never had a problem with it and the surface mounted trunking has not been recently put up certainly not in the year ive been there.
Any way if your still following and not enranged my thinking is this
For what ever reason the fact that someone has gone and drilled a piece of trunking to a wall falling slap bang in the middle of some metal conduit burrried in the wall which is carrying three lives to a old blanked of light switching point has now affected the instilation. some where along the circuit there is a live leakage. what i mean is that the nick in the cable or cables is causing the electricity to leak out of the conductor which is all the cracking which can be heard in the conduit and the bright spark whihc fires out of the end of it.
What would you hae done just so I can clock if they actually no what they are doing
