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Adiabatic problem

Patrick Hammond

Sorry but brain not working this evening and can't get an adiabatic equation to give me a reasonable answer

PFC=12.2Ka

OCPD BS88-2 E 100A  might be 80A but disconnection should be 0.1 at those fault currents

k=115 ie copper sleeved conductor

I'm getting over 30mmCSA main earth which doesn't seem correct

Thanks

Parents
  • 0

    Are you using the correct value for I? Please see the definition of I. 543.1.3

    Z.

  • 0 in reply to Zoomup

    Does Table 54.7 help?

    Z.

Reply Children
  • 0 in reply to Zoomup

    Thanks for that; it's for an EICR code with a 10mm csa MEC. Normally I'd use that table for any installation design

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