Posting a message to the forum will remove the above advertisement
  1. angel While you're here, would you mind checking out our Electrician's Insurance section to see if we could save you a few quid? - Specifically our Van Insurance Deals and Public Liability Insurance Deals. Thanks for supporting the forum! angel

    5% Discount from Electrical2Go.co.uk for ALL members! - Click Here

Discuss What is the best way to wire this bench testing setup? in the Electrical Wiring, Theories and Regulations area at ElectrciansForums.co.uk.

Please make sure you checkout our forum sponsors, many do discounts for members and, they keep the forum free to use.
  1. midiman
    Offline

    midiman Regular EF Member

    Hi,

    When we were in College we setup up a lab using a Bench PSU, a Mini Consumer Unit and some lights etc...

    It wasn't the best setup but it gave us an idea into the principles of wiring up circuits etc...

    From the picture here you can see that the leads they gave us were not the best but it worked.

    psu.jpg

    I've got the same PSU in my lab and I want to re-create the setup again, albeit properly.

    The lead in the pic was just a bit of twin an earth that went to a connector block wired to the consumer unit.

    consumer.jpg

    Is there a better way of doing it?

    Thanks
     
  2. Pete999
    Online

    Pete999 Trusted Advisor

    Top Poster Of Month

    Location:
    Northampton
    Business Name:
    None
    In my last job, I had built several test boards, which consisted of
    A small consumers unit, wired from that CU a small RFC, a 13A radial, a lighting circuit and a DOL SPN contacter, fed from a 13Amp socket which was non RCD protected, students could carry out all the test required apart from Earth rod testing, and of course the Ze was the Zs of the socket used to feed the board, not ideal but it worked for us, is this the sort of thing you were asking about?
     
  3. midiman
    Offline

    midiman Regular EF Member

    Hi, yes.

    I want to setup a test board using the same power supply that you see in the picture.

    All I want to be able to do is create a lab where I can test some socket and lighting radials etc...

    I just need to know what of leads I should use to use to get from the PSU to the Consumer unit, and what type of Consumer unit should I get.

    The one we used looks like a mini Garage Unit with 2 MCBs. I took pictures at the time but I didn't get all the specs of the setup.

    It wasn't a great setup but I would like to re-create again, but safely.

    Thanks
     
  4. Pete999
    Online

    Pete999 Trusted Advisor

    Top Poster Of Month

    Location:
    Northampton
    Business Name:
    None
    May I ask why you need a PSU?
     
  5. midiman
    Offline

    midiman Regular EF Member

    Because that's how we were trained to do it in the workshop.

    What is the other method, I don't really want to be tapping into or running anything off the house supply.
     
  6. spinlondon
    Online

    spinlondon Trusted Advisor

    Location:
    Harlow Essex
    May I ask why you need to feed a CU from the PSU?
    Seems to be you should already have a CU somewhere. To then plug in a PSU to feed another, seems a bit over the top.
     
    • Agree Agree x 2
  7. Pete999
    Online

    Pete999 Trusted Advisor

    Top Poster Of Month

    Location:
    Northampton
    Business Name:
    None
    Use an extension lead, as I said it wasn't an ideal set up, but using a PSU seems a wasteful resource, you would need to feed the PSU anyway so why bother?
     
    • Agree Agree x 1
  8. midiman
    Offline

    midiman Regular EF Member

    In the college labs.

    We plugged the PSU into the 3pin outlets on top of the desks, then ran two leads from the PSU into a mini consumer unit.

    That was the setup and then we built the radials on the board fed from the consumer unit etc...

    This was the board setup
    setup.jpg

    Thanks
     
  9. Resu
    Offline

    Resu Trusted Advisor

    Location:
    Scottish Highlands
    Google "banana plugs" and you should find some that you could easily wire a bit of flex onto.

    The board could be anything you like, as you said, a small garage consumer unit would be ideal. Make sure you get one with enough ways to cover the amount of circuits you intend on wiring up.

    If you post up your location someone local might have an old unit in the back of their shed they may be willing to give you.
     
  10. midiman
    Offline

    midiman Regular EF Member

    Ok so you are suggesting just running wiring up a bit of twin an earth to a 13A plug and doing it that way instead of using the PSU?

    I can see what you are saying but I'm just trying to work out why they made us use the PSU then.

    The PSU has variable voltage control, overload protection and a fan etc..
    The extra consumer unit in the setup was there to get us to learn about wiring up a CU.

    Like you say they may not be needed to a pro but it helped us to get an idea of what we need to do.

    Thanks
     
  11. Resu
    Offline

    Resu Trusted Advisor

    Location:
    Scottish Highlands
    I can only imagine the PSU was used as a safety factor but that would be a guess.

    If you were to go down the wiring into the mains method, you should use a length of flex (1.0mm or 1.5mm 3 core) with plugtop on one end and a stuffing gland into your board at the other.
     
    • Agree Agree x 2
  12. midiman
    Offline

    midiman Regular EF Member

    Thanks

    I only want to wire up to a maximum of two circuits so I don't need anything major.

    I just want to add some sockets, lights and switches.

    That would be nice because the cheapest Garage Consumer Units are around £35 and the PSU just cost me £20. Although I got that at a decent price because most places want £120!!

    I just need an old Garage CU.
     
  13. Dannyg8810
    Offline

    Dannyg8810 Electrician's Arms

    Location:
    Leeds
    Resu’s suggestion sounds like all you need to do
     
    • Agree Agree x 1
  14. Resu
    Offline

    Resu Trusted Advisor

    Location:
    Scottish Highlands
    Shop around a bit, as it's for a test rig it doesn't have to be anything fancy.

    Here's a brand new one for £20. Link.
     
  15. Pete999
    Online

    Pete999 Trusted Advisor

    Top Poster Of Month

    Location:
    Northampton
    Business Name:
    None
    I would volunteer if the OP isn't to far away
     
    • Like Like x 1
Loading...
Similar Threads - best wire bench Forum Date
Sparks are the best!! Sod the rest.... Looking for Domestic Electricians? Jun 17, 2018
Help to become best dad in the world. DIY Electrical Forum Jun 8, 2018

Share This Page

Electricians Directory Post a Domestic Job Post a Commercial Job