Custom made distro's

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Custom made distro’s

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June 16, 2007 at 1:21 am

#887893
1

djrichie_t

@djrichie_t

Member
Yep you did catch me right, you could always use the 4th 10 metre run to make three smaller length 32 amp leads. This will be handy if you have power nearby saves loadsa cable hanging about.

As for cable, cheap place for arctic is http://www.generally-electric.co.uk/ you want the blue stuff for 240v.

I would say use cpc for your other stuff as they seem to be quite reasonable.
June 16, 2007 at 12:58 pm

#887887
1

elretardo87

@elretardo87

Member
They look totally sorted…you don’t do any rack mounted ones?

We’ve currently only got a 16A out on our genny so we use one of these

Means we can have the rack hardwired all we need to do to is stick a ceeform cable in the front and the speaker leads in the back and were running.

Anyway were getting another genny as we need more power and were filling the other rack up so if you can do one of these on a 19″ rack strip type thing I’d rather have one of them as its fair bit cheaper.
June 16, 2007 at 1:20 pm

#887894
1

djrichie_t

@djrichie_t

Member
I could look at doing rack mounted stuff, panel-wise is not a prob but when it comes to enclosing it all in its own rack mounting case, then theres a fair amount of metalwork involved.

Let me know what your after, and I will see what I can work out. I can work with using pre-punched 19″ panels and build into a separate rack, so you have control on the front and outlets on the rear of the flight case. That wont be a prob as its a good way of enclosing it all in.
June 16, 2007 at 1:34 pm

#887880
6

General Lighting

@general-lighting

Moderator
Staff
wow, 4mm^2 cable for a single rig is pretty bling, even the SE England crews don’t go that far!

I will print this thread out sometime and show it to my local crew as a lot of people don’t have the internet. One of the guys there is a qualified electrician so there’s two of us who can convince people for the need for decent power distribution kit..

I’m determined that at least one East Anglian crew is gonna be able to have a party without the rig cutting out every 30 mins :laugh_at:

And with a few notable exceptions it seems a lot of people often don’t have a grasp of basic engineering principles (like that gensets have a finite power output) – do they actually teach science in high school any more? :you_crazy

Actually if I can convince the directors to invest in a genset I may even eventually want one for my work – I don’t trust some of the overhead wiring here to survive the winter and if the leccy goes out in the barn its a nightmare for us doing business as our main database is an online system!
June 16, 2007 at 1:54 pm

#887895
1

djrichie_t

@djrichie_t

Member
Its magic when you see a ’20k’ rig running off a 3.5k genny. Cracks me up everytime.

Bit like boy racers and their 10,000 watt amps and 12 inch subs in their car. Then i teach them ohms law and you can almost see tears running down their face. all i tell them is look at the fuse on the car amp, multiply it by 12(volts) – then multiply by about 0.7 for efficiency and thats the most it will ever push out.

As some of you may know, I did an apprenticeship as an electrical fitter & engineer with the leccy board when i left school, which was a long 5 year haul but glad i did it and carried on after till they made me redundant, so anything from soldering small pcb’s, controlling relays, designing circuits right upto 132,000 volt substation construction/maintenance i have pretty much dabbled in it.

So yeah volt drop is a common calculation i gotta work out, and I would say as a general rule of thumb if youre using 32 amp ceeforms, youre safe with 4mm2 upto about 15 metre length, then go for 6mm. and if using three phase, for petes sake balance the load as best as poss… don’t want any floating neutrals now, do we 😉
June 16, 2007 at 8:25 pm

#887896
1

djrichie_t

@djrichie_t

Member
By the way…. this is how not to do things… 😉
June 16, 2007 at 8:43 pm

#887899
1

Raj

@raj

Member
:scared: :hiding: yikes :hopeless:
August 4, 2007 at 4:06 pm

#887897
1

djrichie_t

@djrichie_t

Member
well heres my new distro currently under construction 😉

its one part of 2 distro’s, 63 amp 3 phase main in to a lovely load of single phase outs, along with four 3 phase 32 amp outs
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