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Evening all
I’m looking for a little advice here as I have bit of a weird one here.
I got called out to a client to look at some computers that they have reported to have the keyboard and mouse not working and for short I’ll just use KB and M.
So a few other people have had a look at this issue and I’m inclined to think it’s a network issue but I’ll get to that.
I went yesterday but I couldn’t turn anything off whilst they were trading I got L1-N 239 L2-N 242 and L3-N 244 (V) and all seems to be ok. And between all ø they were all 415V
So there is 9 PCs on the circuit and I’ve found it was is a radial there is 26 sockets on said circuit. I’ve had to check the wiring and I’ve found that the first sockets were getting 245v and on the final sockets I got 239v and again nothing to worry about. For now we won’t talk about the measures Zs and I’ll omit talking about it.
I found that the circuit was through crimped and I found that there was some arcing so I removed it and secured the connection I then rechecked my sockets and found I was now getting 246v at the first socket and 242v at the last.
So.... I was there to look at why the PCs KB and M were not responding intermittently and it was even affecting PCs on a different DB nowhere near where I was looking at. (Which again leads me to think it’s a networking issue)
There was a IT engineer that I met on the site yesterday and all he kept saying was that there was earth leakage and my response was the RCBO would trip if that was the case he then said that the circuit needed a clean earth as the PCs are getting too much voltage..... ?
However looking at the panel on the PC their operating voltage states 210-250V
I could understand if there was a problem from the DNO that this issue could be constant so why would this issue jump to different PCs
sorry if I don’t make sense I’m a little tired.
any pointers and advice welcome
I’m looking for a little advice here as I have bit of a weird one here.
I got called out to a client to look at some computers that they have reported to have the keyboard and mouse not working and for short I’ll just use KB and M.
So a few other people have had a look at this issue and I’m inclined to think it’s a network issue but I’ll get to that.
I went yesterday but I couldn’t turn anything off whilst they were trading I got L1-N 239 L2-N 242 and L3-N 244 (V) and all seems to be ok. And between all ø they were all 415V
So there is 9 PCs on the circuit and I’ve found it was is a radial there is 26 sockets on said circuit. I’ve had to check the wiring and I’ve found that the first sockets were getting 245v and on the final sockets I got 239v and again nothing to worry about. For now we won’t talk about the measures Zs and I’ll omit talking about it.
I found that the circuit was through crimped and I found that there was some arcing so I removed it and secured the connection I then rechecked my sockets and found I was now getting 246v at the first socket and 242v at the last.
So.... I was there to look at why the PCs KB and M were not responding intermittently and it was even affecting PCs on a different DB nowhere near where I was looking at. (Which again leads me to think it’s a networking issue)
There was a IT engineer that I met on the site yesterday and all he kept saying was that there was earth leakage and my response was the RCBO would trip if that was the case he then said that the circuit needed a clean earth as the PCs are getting too much voltage..... ?
However looking at the panel on the PC their operating voltage states 210-250V
I could understand if there was a problem from the DNO that this issue could be constant so why would this issue jump to different PCs
sorry if I don’t make sense I’m a little tired.
any pointers and advice welcome