Posting a message to the forum will remove the above advertisement

Discuss Resistance per meter of armour in the Electrical Forum 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. mickfred
    Offline

    mickfred Regular EF Member

    Location:
    Liverpool
    I know it's late and the lap dances are still open , so i will wait till tomorrow for any replies . Does anyone have resistance per meter tables for steel armour 90degree thermosetting ,can't find it anywhere . Ta
     
  2. Wilko
    Offline

    Wilko Electrician's Arms

    Location:
    Berkshire
    Business Name:
    Wilko Electrics
    Early to bed, early to rise makes Sparky healthy, wealthy and wise ... Why did I not listen to my Mum?

    Anyway, I don't have one but here's my suggestion ... using the table below first column for Steel mm2 divided by the resistivity of st/cu taken as 8.5 (from GN8 p60) should give the Cu mm2 equivalent. Don't use the table Cu values in the table (it's for CPC and uses k not resistivity). Then convert that to Cu mm2 to resistance using 18.1mOhms/m at 20degC for 1mm2 (OSG Table I1 page 190). But it is early. Hope that helps :)

    View attachment 35918
     
    • Like Like x 1
  3. Pete999
    Offline

    Pete999 Trusted Advisor

    Top Poster Of Month

    Location:
    Northampton
    file:///C:/Users/Pete/Desktop/SWA%20CPC.pdf
    Is this what you are after? good job some of us "Old scho;; brigade" are on the ball cheeky b-----
     
    • Like Like x 2
  4. Richard Burns
    Offline

    Richard Burns Trusted Advisor

    Location:
    Cambridgeshire
    Business Name:
    Richard Burns
    The attached file is the Draka data for XPLE SWA it gives the armour resistance in ohms per km which is the same as mohms per m. the * is for circular rather than shaped conductors.
     
    • Like Like x 3
  5. Wilko
    Offline

    Wilko Electrician's Arms

    Location:
    Berkshire
    Business Name:
    Wilko Electrics
    That's the one.
    For 10mm* 2core, the Table had max 6 Ohm per km, and my longhand gave 5.92 Ohm. I'm happy it was even close :)
     
    • Like Like x 2
Loading...
Similar Threads - Resistance meter armour Forum Date
Insulation resistance test Periodic Inspection Reporting & Certification Aug 18, 2017
KWh meter din rail mounted for wylex board Electrical Forum Sep 6, 2017

Share This Page

  • Electricians Directory Post a Domestic Job Post a Commercial Job