Posting a message to the forum will remove the above advertisement

Discuss Wire gauge/calipers for cable csa in the Electrical Tools and Products 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. sevuk
    Online

    sevuk Regular EF Member

    Location:
    London
    I've seldom seen these as I mostly do installation work, but does anyone know of any good calipers or gauge for measuring the csa of a cable?
     
  2. HandySparks
    Offline

    HandySparks Trusted Advisor

    Location:
    Hampshire
    Business Name:
    Neish Electrical Services
    I use an ordinary digital caliper, now available for less than a tenner.

    Measure the diameter of the strands in a few places and take an average. Work out the csa of the strands, then multiply by the number of strands. Maybe write a lookup table for the common sizes.
     
    • Like Like x 1
  3. rsgaz
    Offline

    rsgaz Regular EF Member

    Location:
    UK
    • Informative Informative x 1
  4. telectrix
    Online

    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    think the greek letter Π comes into the equation.
     
  5. sevuk
    Online

    sevuk Regular EF Member

    Location:
    London
    Also a magical number.

    Thanks for the responses. The table is very useful.
     
  6. Vortigern
    Offline

    Vortigern Electrician's Arms

    Location:
    England
    Business Name:
    F.H. Electrical
    I use a micrometer, decimal one and do the Pi r² x the strands.
     
    • Like Like x 1
  7. paul291277
    Online

    paul291277 Regular EF Member

    Location:
    Hertfordshire
    Pie causes nothing but problems for my csa
     
    • Like Like x 1
  8. telectrix
    Online

    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    can't beat a good cow pie.
    upload_2017-11-28_18-6-54.jpeg

    but horse d'ouvres is a nice starter.
     
    • Like Like x 1
  9. Vortigern
    Offline

    Vortigern Electrician's Arms

    Location:
    England
    Business Name:
    F.H. Electrical
    It's Horses douvers, sigh!
     
  10. telectrix
    Online

    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    nah. douvers are their feet, silly arse.:confused:
     
    • Funny Funny x 1
  11. paul291277
    Online

    paul291277 Regular EF Member

    Location:
    Hertfordshire
    Worked with a guy once who ordered Prosecutor Ham and Dolphin-nosed Potatoes at the same meal
     
    • Funny Funny x 1
  12. happyhippydad
    Online

    happyhippydad Member Electrician's Arms

    Location:
    Gloucestershire
    I never found a pair that I found accurate enough, although I did only experiment with a few fairly cheap ones though.

    I made this, just one of Richard Burns many good ideas! :)

    IMG_20171128_185501.jpg
     
    • Like Like x 1
  13. Vortigern
    Offline

    Vortigern Electrician's Arms

    Location:
    England
    Business Name:
    F.H. Electrical
  14. telectrix
    Online

    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
  15. Vortigern
    Offline

    Vortigern Electrician's Arms

    Location:
    England
    Business Name:
    F.H. Electrical
    So conversion to metric size after finding CSA then for you...
     
  16. telectrix
    Online

    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    never bother. if it fits in the terminal without using s hammer, it's right size.
     
  17. Vortigern
    Offline

    Vortigern Electrician's Arms

    Location:
    England
    Business Name:
    F.H. Electrical
    Oh crap didn't realise that, better go back and check a few jobs I done then, so... without using a hammer, mhmmm
     
  18. PEG
    Offline

    PEG Trusted Advisor

    Location:
    Manchester
    Got to be careful,doing your own calcs,the tiny variations in measuring a single strand,will multiply in error.

    Fine for an estimate,but manufacturers tables are the best method,and the one anyone who is doing definitive investigations,will use.

    You can try this yourself,on a decent size piece of SWA,with a quality vernier caliper. You will get near enough to what you know the stated CSA is,and that can be enough to know the standard guage.
     
    • Like Like x 1
  19. Vortigern
    Offline

    Vortigern Electrician's Arms

    Location:
    England
    Business Name:
    F.H. Electrical
    It is true regards the variations, however as the cable sizes jump from 1.5 to 2.5 to 4.0 to 6.0 to 10.0 to 16.0 and so on, the minute variations do not confuse the answer as approximate closer to one of the defined sizes available and there should be very little chance of mistaking cable size accordingly. Used intelligently that is. So you may end up with and answer like 9.155mm² which you can confidently say is nominally 10mm² However I take your point @PEG@PEG
     
    • Agree Agree x 1
    • Winner Winner x 1
  20. telectrix
    Online

    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    easiest way: get diameter, then use pi r ^2
    [​IMG]
     
  21. FatAlan
    Offline

    FatAlan Trainee Trainee Access

    Location:
    Surrey
    Had a discussion a while back on conductor CSA as I wondered whether cable CSA was the actual real CSA or the diameter. I purchased a digital vernier calliper off amazon and using pi r squared confirmed it is the actual CSA. Happy days!
     
Loading...
Similar Threads - Wire gauge calipers Forum Date
Decent Wireless Switch Electrical Forum Monday at 4:06 PM
wire single socket off garage feed in kitchen Electrical Forum Thursday at 11:45 AM

Share This Page

  • Electricians Directory Post a Domestic Job Post a Commercial Job