M
Mark6098
2 sockets on dado trunking within half a metre of each other, would you agree on warning notices for potential 400v?
Discuss Sockets on different phases in the UK Electrical Forum area at ElectriciansForums.net
Can't be fussed reading all your responses but to the OP. It's not a reg but for good measure if I can touch both, I will re arrange the DB if possible or blank one off.
the only issue I see is the average joe blogs seeing 400v next to a socket and worrying about using it.
Agreed also. I would not label sockets now that there is no requirement to do so. Lots of so-called electricians don't understand where the 400V comes from so the average user won't have a clue. Labels that don't convey useful information are a menace and cause confusion. I saw a similar situation in an office where a 6-way plastic gridswitch on a new install had a 'Danger 400V' label stuck on the dado trunking next to it. The office staff were pushing the switches with a plastic rule because no-one knew what the danger actually was!
Stage lighting is a bit of an exception because the sockets are normally intended for use by instructed persons. We used to do the Trafolyte channel labels in the appropriate colours but you can't see the difference with harmonised colours so use the numbers now.
I think some of these people need to visit some industrial or large commercial premises to see for themselves, that it's not only common, but is standard practice!!
In this instance (OP's situation) it's an office installation, and would be a perfectly acceptable and normal method of wiring large amounts of socket outlets across a 3 phase supply....
Doesn't matter mate, they can be next to each other (and often are), compliance with safe isolation practices, will always negate any perceived or real risks....
Fully agree - never argued anything different other than how common they are closely positioned in the OP type install - but we all have differing experiences
In the event of simultaneous line to earth faults on appliances using these socket outlets, the metalwork on both would rise to mains voltage until the protective device for each has operated to clear the faults. This is highly unlikely, but is possible. If it did occur, shock voltage when the metalwork of both were to be touched simultaneously would be 400V, not funny.why would you need warning signs?? for what?
In the event of simultaneous line to earth faults on appliances using these socket outlets, the metalwork on both would rise to mains voltage until the protective device for each has operated to clear the faults. This is highly unlikely, but is possible. If it did occur, shock voltage when the metalwork of both were to be touched simultaneously would be 400V, not funny.
I’ve got socks older than that!Note, thread is 8 years old.
Not a problem, so long as they have been washed frequently!I’ve got socks older than that!
I’ve got socks older than that!
Not a problem, so long as they have been washed frequently!
What reg no. is that?Requires a sticker if 2 phases at one accessory I.e light switch bank
514.10.1 maybeWhat reg no. is that?
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