Avotronics Posted February 18, 2012 Posted February 18, 2012 Just wondering; is there any difference/benefit to using a spit load cu for a protected circuit against using an rcbo instead?
Rulland Posted February 18, 2012 Posted February 18, 2012 Rcbo takes out one circuit only-split load takes out anything on that side.
Avotronics Posted February 18, 2012 Author Posted February 18, 2012 You beat me to it, I was gonna answer my own question. If cost ain't an issue, but space is, RCBO is ideal. Also for the important point you make.... In terms of protection, no different.
fozzies Posted February 18, 2012 Posted February 18, 2012 U can pick up a fully loaded consumer unit with split rcbs for less than 70 squids, cost cant come into it at that price
Rulland Posted February 18, 2012 Posted February 18, 2012 but space is, Rcbo's take the same width as an mcb-but are usually longer and take up more room with the additional wiring directly attached to themselves, to fully load a CU with them is more challenging!.
Avotronics Posted February 18, 2012 Author Posted February 18, 2012 Rcbo's take the same width as an mcb-but are usually longer and take up more room with the additional wiring directly attached to themselves, to fully load a CU with them is more challenging!. I was thinking more on my own requirements, I can lose two rcds and two mcb and gain two rcbos. Must be better in terms of space, no? But yes, I agree that if you are keeping current rcds then it may be worse.
Rulland Posted February 18, 2012 Posted February 18, 2012 As Fozzies then imo,get fully loaded 17th board for substantially less than buying rcbo's-no real reason for going separates unless circuits they supply are critical,guaranteed they aren't!.
Rulland Posted February 18, 2012 Posted February 18, 2012 You can also put stuff on the non rcd side of a split board as long as the requirements of BS7671-17th edition are adhered to.
Avotronics Posted February 18, 2012 Author Posted February 18, 2012 True, but then you could do that anyway, could you not! | isolator | non rcd mcb | rcbo | rcbo | rcd | mcb | etc I do have a need for splitting circuits as its for my workshop and I've a lot of test equipment, etc. But I agree with the cost factor, business seller on eBay has 40+ mk 16 way split load fully loaded con units and I could have won one today for £58. That had two rcds as well. Have to bid I think.
datadiffusion Posted February 19, 2012 Posted February 19, 2012 Depends what its for I guess - if its for a house, and you have a freezer on one circuit and a N-E fault on another both fed from the same RCD, and you can't find the fault... ( So, I've decided to take my work back underground.... to stop it falling into the wrong hands
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