dual row 17th cu ?

S

slippyr4

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Hi all,

Does anyone know of a 17th edition CU that is is split in two rows, one above the other, and therefore is quite narrow (but taller)

It's either that or have to fit 2 separate units in the gap i've got. Which is not ideal.

thanks

slip
 
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Can't say I do know of one.

An advantage of fitting two boards is you can go for single RCD ones, which you should be able to get cheap.
 
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Each CU would have a main switch, so each installation would have a means of isolation.
 
There have been fierce debates over this in the past. In my opinion, having two DBs doesn't make it two installations. Others disagree and I have no desire to try and change there minds.

If you want to hedge your bets, go for a single main switch for isolation. This also reduces the size of each DB required.
 
ban-all-sheds said:
Each CU would have a main switch, so each installation would have a means of isolation.
Click to expand...

RossR said:
There have been fierce debates over this in the past. In my opinion, having two DBs doesn't make it two installations. Others disagree and I have no desire to try and change there minds.

If you want to hedge your bets, go for a single main switch for isolation. This also reduces the size of each DB required
Click to expand...
537.1.4 anybody ? :D
 
RossR said:
There have been fierce debates over this in the past. In my opinion, having two DBs doesn't make it two installations. Others disagree and I have no desire to try and change there minds.

If you want to hedge your bets, go for a single main switch for isolation. This also reduces the size of each DB required.
Click to expand...

It's unrealistic to expect a single switch to isolate an entire building. A single location you can isolate from is another matter.
 
Monkeh said:
It's unrealistic to expect a single switch to isolate an entire building.
Click to expand...

I never mentioned "entire building". I don't think it's unrealistic to expect a single switch to isolate an entire dwelling though.

I look at what I think is the intent of the regs. The reason for requiring isolation to be as close as possible to the origin is so that as much as possible of the installation can be isolated for working on. If you put isolation after some henley blocks then how do you work on those henley blocks? The DNO fuse won't count, as it doesn't interrupt the neutral.

Having an isolator for the whole installation doesn't exclude the possibility of also having one for each DB.

That's my opinion. You might disagree, and you're free to, but I think it's safer.
 
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