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Discuss Max Zs table in the Electrical Wiring, Theories and Regulations area at ElectrciansForums.co.uk.

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  1. appspark
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    appspark Regular EF Member

    Location:
    United Kingdom
    hi folks, does anyone have a copy or link to the most recent maz zs tables? ive only got green book and know they've been updated, was it 10% extra roughly. i used to have a link saved on my phone but i must have deleted it by mistake, thanks.
     
  2. telectrix
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    telectrix Scouser and Proud of It Respected Member

    Top Poster Of Month

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    5% reduction from the green osg.
     
  3. Rpa07
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    Rpa07 4000 posts - only 54195 behind Telectrix! Electrician's Arms

    Location:
    Bristol
    Business Name:
    Ebenezer electrical
    Multiply by 0.95 for cmin
     
  4. appspark
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    appspark Regular EF Member

    Location:
    United Kingdom
    thanks guys, i thought you got extra now, something about the calcs being done on 250v against the usual 240v. cheers guys, i stand corrected
     
  5. appspark
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    appspark Regular EF Member

    Location:
    United Kingdom
  6. LeeH
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    LeeH Electrician's Arms

    Location:
    Lincs
    So if you use the 46/In multiplied by Cmin (0.95) does that still work out? (Type B)

    23/In for C etc.
     
  7. Rpa07
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    Rpa07 4000 posts - only 54195 behind Telectrix! Electrician's Arms

    Location:
    Bristol
    Business Name:
    Ebenezer electrical
    I'm still working from the BGB and I noticed the other day that my OSG is 16th edition - good that I haven't been using it I guess. Pleading poverty!
     
  8. Leesparkykent
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    Leesparkykent Super Moderator Staff Member Super Moderator

    Location:
    Kent
    80% and 100% values

    http://files.stroma.com/certification/zs-sheets-giveaway.pdf
     
  9. Andy78
    Online

    Andy78 Respected Member

    Location:
    Kingston upon Hull
    Yes that would work, can't see why not. They have presented the formula as follows now though

    Type B .......... 230*0.95/(5In)
    Type C .......... 230*0.95/(10In)
    Type D 0.4s .......... 230*0.95/(20In)
    Type D 5s .......... 230*0.95/(10In)
     
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  10. LeeH
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    LeeH Electrician's Arms

    Location:
    Lincs
    I must take the wrapper of the yellow one some time.
     
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  11. Midwest
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    Midwest Electrician's Arms

    Location:
    Oxfordshire
    When you do, just be careful, 'cos something will fall out of it!
     
    • Like Like x 1
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