RCBO mains board help

[YoungBart]

Hi all, I'm an apprentice and tommorow I've been given the job of installing my first (larger) RCBO filled mains board. I've done one before but that was just 4 ways single phase. This has 11 ways 3 phase (8 showers 6mmt&e, 2 heaters 2.5mmt&e and Lighting circuit 1.5mmt&e). Just wondered if anyone has any tips on making it neat. (Using sqaure D/Schneider RCBO's), As the Neutral and earth wires are coiled up (why?) it can look a bit untidy. Any tips?

 

[VoltzElectrical]

down the back of the bussbar looks cracking tywraps tend to get frowned on if LEFT by all means use them and leave on otill finished then remove
NUMBER NUMBER NUMBER !!!!! number cables keep sequence IF you can feed the curly neutrals down the back of pan assembly all the better and KEEP to the db schedule you are given

agree. get some decent ferrules.

 

[Guest111]

Whatever you do make sure you get both live legs of the same ring on the same breaker, a spark working with me once put one live on red1 and the other leg on yellow 1 powered up and BANG .You really dont want to go there, better to take 2 hours and get it right first time rather than do it in an hour and have to do it again!

 

[YoungBart]

Are you assigning circuits to a deignated schedule or are you working it out yourself ? If you are, bear in mind load balancing across phases and putting larger loads nearer the incomer.
I'm sure you will do a fine enough job. Take your time, and enjoy the finished result.

I've worked out all the load balancing etc for the job, My 'supervisor' wanted to give me the chance to work my way through a more complex board, So all that has been done.
But thanks for the replys guys, some helpful tips and some good points raised, especially about the tie wraps, I've often wondered how people view that idea.
Thanks again
James

 

[YoungBart]

Whatever you do make sure you get both live legs of the same ring on the same breaker, a spark working with me once put one live on red1 and the other leg on yellow 1 powered up and BANG .You really dont want to go there, better to take 2 hours and get it right first time rather than do it in an hour and have to do it again!

Luckily theres no ring for me to make that mistake THIS TIME. Just 8 showers, Lights and 2 heaters.

 

[J&M Electrical]

As others have said really, just take your time..Number all the conductors so they are easily traceable (This was a requirement on the AM2 when i did it 5 years ago so it will be good practice), Balance your loads (like you have said), and make sure everything is tight. Personally i like using just a couple of cable ties down each side just to keep everything neat and tidy. This also helps keeping terminated cables out of the way whilst your still working on the board. Get some pictures up of it when your done.