3p Tpn converted to Sp

[cliffed]

What you reckon doing a Eicr loads of these DB’s

 

[James]

Not a problem converting to single phase, manufacture’s normally sell a kit that does just that.

SE125SPP - single phasing kit, LoadCentre, 125A for KQ type B distribution board | Schneider Electric UK

SE125SPP - single phasing kit, LoadCentre, 125A for KQ type B distribution board

www.se.com

not quite the right one for that board I think, but you get the idea.

 

[westward10]

It is fine as above it needs the correct manufacturer single phasing kit fitting.

 

[brianmoooore]

The only caveat I would add, is that it is theoretically possible for the neutral side of things to be carrying three times its design load.

 

[pc1966]

In this case both the L & N of the supply are carrying all of the load, so design-wise it should have upstream OCPD that is rated for that cable (as I suspect the sum of downstream MCBs is way higher).

 

[brianmoooore]

I was meaning generally, and especially on boards with a four pole isolator. Doesn't appear likely to be a problem with the board in question.

 

[cliffed]

The only problem with this set up @ the moment the Neutral’s not switched

 

[cliffed]

I was meaning generally, and especially on boards with a four pole isolator. Doesn't appear likely to be a problem with the board in question.

Yea defo needs new 4 pole main switch

 

[James]

Yea defo needs new 4 pole main switch

Does it Ned a switched N?

if so why?

 

[cliffed]

Does it Ned a switched N?

if so why?

Single phase needs DP isolation

 

[James]

It may have DP isolation but not at that location.

 

[cliffed]

It may have DP isolation but not at that location.

No it’s off a Mcb @ DB

 

[westward10]

The neutral will only require switchable isolation in say a dwelling. Commercially the neutral requires a link to disconnect it

 

[brianmoooore]

Do the conversion kits include a main switch that switches the neutral?

 

[westward10]

Do the conversion kits include a main switch that switches the neutral?

For that board no it just links the three lines. I believe the new Eaton ones become a double pole switch which also switches the neutral.

 

[cliffed]

For that board no it just links the three lines. I believe the new Eaton ones become a double pole switch which also switches the neutral.

I know that I would fit a DP main switch, never seen a single phase supply without one.
Its a EICR so it’s been in place for some time, classification code C3 maybe after reading all these messages ?

 

[westward10]

I know that I would fit a DP main switch, never seen a single phase supply without one.
Its a EICR so it’s been in place for some time, classification code C3 maybe after reading all these messages ?

Explain why it needs Coding.