3 phase dis board for split phase

[lewlec]

hi all

just wondering, is there anything wrong with using a 3phase dis board for splitphase? i have seen a couple of installes about like this.

cheers.

 

[Sparky-Tom]

What do you mean by split phase?

Using the board to power single phase circuits?

This is ok aslong as all phases remain balanced, by which I mean pulling the same amount oif current per phase

 

[ajelec10]

Hi gary do you mean a single phase 400v system (2 phase, N + E)

 

[lewlec]

hi

460volt beetween phases & 230 between L1 & N & L2 & N.
Yes all single phase loads, just wondering what the best way is 2 x single phase boards or 1 x 3 phase board and double up on the main incomer.what are your thoughts?

 

[ajelec10]

I ve seen a three phase board used, you can just blank off all the spare ways , with some boards you can get a doubble pole MCB if you wanted to run any single phase 400v loads at a later dae, another reason for usingone board in sterad of two
hope this helps
AJ

 

[lewlec]

many thnks aj

 

[Spudnik]

Hager do a single phase link kit for their 3 phase DB's.

All you need do is cut one tab off the link and install across two phases in the DB.

 

[ajelec10]

Hager do a single phase link kit for their 3 phase DB's.

All you need do is cut one tab off the link and install across two phases in the DB.

I feel that would not be good practice as you would have an un ballanced board also the manufactuer didn't design it to be used like that

 

[Spudnik]

I feel that would not be good practice as you would have an un ballanced board also the manufactuer didn't design it to be used like that

Really cant see a problem.

One phase would carry for eg 100A and the remainder spread across the other 2 board phases.

As long as its properly labeled, it should be fine..