3phase DB as single phase

[newfutile]

It's coming out anyway so it's a rhetorical question.
What do you you all think of this?
Bits of wire used to bridge the bus bars and don't single phase consumer units need a linked switched line and neutral?

 

[timhoward]

Briefly - IMHO the question is more about the size of the links.
See section 460 regarding need to isolate N

 

[Rockingit]

Poor practice to have used cable and not bus bar due to the risk of overload, no requirement for interlinked switch to disconnect the neutral unless it's in a domestic-ish setting (462.1.201 & 463.1.2)

 

[bill01803]

What you want is a JK125BSP which is a bit of buss bar with a bolt hole

 

[westward10]

The should have used a proprietary single phasing kit.

 

[timhoward]

I suppose we'd better add "or TT" to the list in #3

 

[James]

Hager JK125BSP 125a Single Phasing Kit

Buy online Hager JK125BSP 125a Single Phasing Kit with 24 hour delivery from Edwardes

www.edwardes.co.uk

 

[Rockingit]

Hager JK125BSP 125a Single Phasing Kit

Buy online Hager JK125BSP 125a Single Phasing Kit with 24 hour delivery from Edwardes

www.edwardes.co.uk

That relies on someone being able to use a lug crimper.....

 

[westward10]

That relies on someone being able to use a lug crimper.....

Club Hammer & Bolster | Toolstation

1.1Kg(2½lb) club hammer & 76mm (3”) bolster with safety grip.

www.toolstation.com

 

[Dustydazzler]

Have seen this done quite a few times where some off cuts of cable have been used to link across the main switch.
Like wise have come across a fair few domestic boards where the busbar has been lost and they have linked out the bottom of the MCBs in 2.5 cable

 

[richy3333]

The should have used a proprietary single phasing kit.

Particularly when Hager sell them

 

[pc1966]

Hager also do a 4P incomer switch kit so you can have both the single-phasing kit and DP isolation if you do it right. Not like here!

But I do wonder WTF was anyone fitting such a small 3P board for SP use?

 

[nicebutdim]

Hager also do a 4P incomer switch kit so you can have both the single-phasing kit and DP isolation if you do it right. Not like here!

But I do wonder WTF was anyone fitting such a small 3P board for SP use?

Ordered a 4 way board, without paying any attention to detail, and made the most of what turned up?

Edit: I can see 6 breakers, but liked the idea.

 

[pc1966]

Ordered a 4 way board, without paying any attention to detail, and made the most of what turned up?

Could be. I did wonder after posting if it was anything to do with needing industrial levels of dust, etc, tolerance or even 10kA break capability.

Then I remembered the wires and clearly they were not design considerations...