Can you take 2 phases to a consumer unit?

[Gigsy]

Hi,

I am training to become and electrician, I have passed my C&G level 2 exams. I am working as an electrical improver.



I came across a consumer unit today, which has two main switches and two phases L2 and L3 supplying it.



Does this board comply with regs?



Can you take 2 phases to a consumer unit?

 

[Risteard]

Is it rated for 400V and 25kA?

 

[PEG]

Hi,is there a "handy" single point of isolation?

 

[Gigsy]

Hi,is there a "handy" single point of isolation?

There is a single point of isolation at the main DB.

 

[Gigsy]

Is it rated for 400V and 25kA?

It is just a consumer unit. A metal box cant be rated for 400v.
The switches are rated correctly for the voltage and current they are being used for.
There is a 400v warning sticker on it.

 

[The Ghost]

Oh actually I can just about see it now. I mean the phase colours.

 

[Gavin John Hyde]

The cable dressing police will be along in a moment to comment on the untidy cables....

 

[Gigsy]

Oh actually I can just about see it now.

The right switch they are using a black conductor L2, the left switch they are using a grey conductor L3. Both conductors are identified as line conductors , by brown tape?

 

[Octopus]

There is a single point of isolation at the main DB.

Which is where?

 

[Risteard]

It is just a consumer unit. A metal box cant be rated for 400v.

An enclosure and assembly absolutely can be rated for 400V or not as the case may be.

 

[The Ghost]

Ok well I am thinking why are there three neutrals on the first block on the right does this mean the neutral will be switched off with the first main switch, it is a bit hard to follow where the three neutrals go.

 

[Risteard]

Also I notice that 6kA rated devices have been used.

 

[Gigsy]

Which is where?

At the front of the building

 

[buzzlightyear]

that is not what I call coacher ,wrong board their boy .

 

[westward10]

Dual tariff board?

 

[Gigsy]

T

An enclosure and assembly absolutely can be rated for 400V or not as the case may be.

There is nothing on the metal box which identifies it as being rated for anything, The switches are rated for 400v. But they are only subject to 230v each?
It is a normal domestic consumer unit?

 

[Gigsy]

T

An enclosure and assembly absolutely can be rated for 400V or not as the case may be.

There is nothing on the metal box which identifies it as being rated for anything, The switches are rated for 400v. But they are only subject to 230v each?
It is a normal domestic consumer unit?

 

[Octopus]

At the front of the building

Hum .......

 

[Gigsy]

An enclosure and assembly absolutely can be rated for 400V or not as the case may be.

The switches are rated 230v/400v

 

[Gigsy]

Ok well I am thinking why are there three neutrals on the first block on the right does this mean the neutral will be switched off with the first main switch, it is a bit hard to follow where the three neutrals go.

Incoming neutral goes to 1st neutral bar.
Then linked from there to each switch