Wiring large industrial DBs

[brizospark]

got quite a few large scale industrial DBs to connect up in the coming weeks. Have done a good few in my time and like to keep them as tidy as possible. i usually use the square cable tie bases to tie the cables to the inside of the DBs but thought I would ask you guys if you have any tips to produce a top notch finished job as some of you might have some ideas i haven't thought of. Also some pics would be great

 

[The Ranger]

In my personal opinion it is bad practice to tie cables within DB's

 

[jbecks]

We have around 30 DB's at work, not a single one has cable ties inside the boards.

 

[Darkwood]

Depends on your Dist' board brand but i use miniture tiewraps to keep the individual circuits neatly run around board but dont bunch seperate circuits together with tiewraps as you still have to remember the grouping factor effects, so if i have a 3ph/N/E of one circuit i would keep them neatly together with tie's but won't bunch them to other circuits, you can also use in some brands the back space of the central busbar carridge thus bring wires out directly adjacent to their fuse, if i have time il photo a d'board im on as a guide and post.

 

[Andy78]

As darkwood said above, remove the central busbar pan assembly and run the wires behind. looks very neat and gives the cables air space unlike tie wraps. You can do this on Hager and Merlin I think. If you have a lot of RCBOs to go in, then this is a very useful method to give yourself plenty of space round the sides for your neutral leads.

 

[Guest123]

As darkwood said above, remove the central busbar pan assembly and run the wires behind. looks very neat and gives the cables air space unlike tie wraps. You can do this on Hager and Merlin I think. If you have a lot of RCBOs to go in, then this is a very useful method to give yourself plenty of space round the sides for your neutral leads.

Crabtree Starbreakers also.

Agree with the comment regarding space & RCBO's too.

 

[johnboy6083]

agree with above. Some boards are big enough to put panel trunking in if you fancy it.

 

[Knobhead]

Damn, thought someone was having fun with 185’s in a board!
View attachment 10290

 

[johnboy6083]

Damn, thought someone was having fun with 185’s in a board!
View attachment 10290

that would have to be one very very long circuit, to have to use a 185 in a normal 3pn DB! lol

 

[Engineer54]

that would have to be one very very long circuit, to have to use a 185 in a normal 3pn DB! lol

The thread heading DID say Large!! To be honest, i was thinking along similar lines, only to find we were talking about over grown 3 phase CU boards ...lol!!

 

[Knobhead]

No clue was given to what size board it was.

I was hoping for a EE RedSpot 200A 3 Ph + n with 185's feeding and a bunch of 70's as the out going feeds.

 

[Knobhead]

We should have a dinosaurs section E54

View attachment 10291

 

[Darkwood]

there's me explaining about using the vacant area behind the carriage and merlin go and revamp their isobar boards... fitting the earthing bars at the top of the busbar carriage, although it buggers dropping into the cavity it does have its good points by leaving more space down sides for drilling etc ...

Im only half way through so dont pull me on the SWA tray grouping lol... will be in groups of 3 when done.
Ive utilised tiewrap to keep cables of same circuit together but not to bunch the all up, but its only half done so will probably be tidied a bit when all cables in.