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There were some produced 23 years ago.In 22 years of being an electrician I have never come across a fuse board that I could not tighten the fixing screws in.......
Discuss Can you take 2 phases to a consumer unit? in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
There were some produced 23 years ago.In 22 years of being an electrician I have never come across a fuse board that I could not tighten the fixing screws in.......
thank you
It does not require a 400v notice as the nominal voltage does not exceed 230v.
Anyone working on it should undertake safe isolation procedures.I think a warning sticker is advisable because there is a potential of 400V between phases inside the enclosure.
I think so did/do Hager.Assuming it’s correctly labelled I see no reason why not. 1, 2 or 3 phases are all under 1000v, and the main switch itself is rated at 400v. Proteus used to make a 3 phase busbar for their single phase fuse boards so they could be used for that purpose, I assume it’s still available.
There is not such a thing as a domestic installer there are electricians who do domestic electrical installation work and self-certify by joining a C.P.S. The NICEIC call their's D.I. and A.C. we are falling into the trap of calling a vacuum cleaner a Hover.What exactly is a domestic installer, it sound like an inexperienced electrician? Is it like having P plates on your car after passing a driving test
exactly, the screws are behind the bars at the top of the board
top two are not meant to be tightened
It does not require a 400v notice as the nominal voltage does not exceed 230v.
In that case Ant, why do scam schools run DI courses?There is not such a thing as a domestic installer there are electricians who do domestic electrical installation work and self-certify by joining a C.P.S. The NICEIC call their's D.I. and A.C. we are falling into the trap of calling a vacuum cleaner a Hover.
Supporting contractors in the building services sector | NICEIC - http://www.niceic.com/domestic-installer?gclid=Cj0KCQjwlv_XBRDrARIsAH-iRJQ0k3feaK-awMZkydmvS1268O-kIa8PQWw6i1s0hq54UqTpz7YseQAaAmzyEALw_wcBThere is not such a thing as a domestic installer there are electricians who do domestic electrical installation work and self-certify by joining a C.P.S. The NICEIC call their's D.I. and A.C. we are falling into the trap of calling a vacuum cleaner a Hover.
Because this name has been adopted, these courses in my view are geared towards the compliance of Part P & C.P.S schemes these short courses are really designed for people doing small electrical alterations such as kitchens, bathrooms extensions. Anyone doing more involved electrical installation works needs to undertake more in-depth C & G together with practical experience.In that case Ant, why do scam schools run DI courses?
If what you say is correct Ant, then the scams and the scamschools should stop advertising these courses as Domestic Installer Courses, and the NICEIC are the worst offenders in my book, so to say there is no such thing as a DI is wrong.Because this name has been adopted, these courses in my view are geared towards the compliance of Part P & C.P.S schemes these short courses are really designed for people doing small electrical alterations such as kitchens, bathrooms extensions. Anyone doing more involved electrical installation works needs to undertake more in-depth C & G together with practical experience.
So this board can be used for a 3 phase 400V supply then?
The consumer unit is modular, it is not designed for one switch. You can add another switch, it is designed so that you can add another switch.
What do you mean, a TP isolator in place of the 2 DP ones or a single TP as a direct replacement for the 2 DP switches? if it's the latter idea then that would make the installation more dangerous than it is already imo.In my opinion, this board is absolutely fine as it is, as long as the PSC is confirmed as being less than the rating of the components. Anyone who has done any domestic installation outside of this small group of islands would be more than familiar with consumer units laid out like this.
The only change I would have made when fitting it, would have been to use a TP main switch instead of the two DP ones, but there's no requirement for this.
So you would have 2 phases and 1 Neutral, could cause problems with a twin RCD board, don't you think?TP isolator in place of the RH DP switch (and labeled 'main switch'), links from N of isolator to each RCD, link from L2 of isolator to RH RCD, and link from L3 of isolator to LH RCD.
Both DP isolators removed and not used.
As things are at the moment you have a DP isolator (main switch) followed by another DP isolator (RCD) on each side of the board. The DP switches could have been omitted, and the supplies taken directly to the RCDs, each labeled 'main switch'.Feeding the two RCDs from a TP isolator gives a single point of isolation to keep everyone happy, however you interpret 'single point of isolation'.
In my opinion, this board is absolutely fine as it is, as long as the PSC is confirmed as being less than the rating of the components. Anyone who has done any domestic installation outside of this small group of islands would be more than familiar with consumer units laid out like this.
The only change I would have made when fitting it, would have been to use a TP main switch instead of the two DP ones, but there's no requirement for this.
Well said, Although our Cousins may choke on that point.I think we've all seen the standard (or lack of it) of foreign electrical work abroad. Just because they do it, doesn't mean it's right or safe. That's why our Wiring Regs are often used as the yardstick to aspire to.
The 3rd phase (L1) goes to a consumer unit downstairs. I think they have balanced the load.
No Mate you are right.I would have prefered to see two S.P+N distribution boards eg DB 2 DB 3 but that's just me.
So you would have 2 phases and 1 Neutral, could cause problems with a twin RCD board, don't you think?
I think we've all seen the standard (or lack of it) of foreign electrical work abroad. Just because they do it, doesn't mean it's right or safe. That's why our Wiring Regs are often used as the yardstick to aspire to.
What exactly do you mean by if the N section of the isolator became resistive? Are you saying if the N became a dodgy connection/ because that could happen to a DP switch just as easily. Doing what you propose could cause the "borrowed N syndrome" However you look at this situation, taking Two phasesinto what is, in reality, a Single Phase situation is inherently dangerous, in my opinion, is a dumb way of doing things.No, I don't. Exactly the same as if it were two boards side by side on different phases. Only thing that could upset the RCDs is if the N section of the isolator became resistive, and if that happened, it's good that the RCDs draw attention to the problem.
I see jingoism is alive and well on here!
I've seen excellent electrical installations both here and throughout Europe (maybe not Greece), and I've seen wiring that should be disconnected on sight in both.
I've done a lot of farm installations throughout my career, and was bringing in and using IP55 rated consumer units (fuseboxes, back then), complete with RCDs, when the nearest you could readily get in this country at the time would be open backed, wooden framed Wylex units with rewireable fuses. RCDs (if you could justify the bank loan to buy one) had to be mounted along side the fusebox, and were nearly the same size.
I could argue that continental wiring practices back then were far in advance of UK ones, and that it's only recently that we've caught up.
TP isolator in place of the RH DP switch (and labeled 'main switch'), links from N of isolator to each RCD, link from L2 of isolator to RH RCD, and link from L3 of isolator to LH RCD.
Both DP isolators removed and not used.
As things are at the moment you have a DP isolator (main switch) followed by another DP isolator (RCD) on each side of the board. The DP switches could have been omitted, and the supplies taken directly to the RCDs, each labeled 'main switch'.Feeding the two RCDs from a TP isolator gives a single point of isolation to keep everyone happy, however you interpret 'single point of isolation'.
Reply to Can you take 2 phases to a consumer unit? in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
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