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  1. N

    Adding Extra Cable

    Thanks for your comments will fit new 10mm swa nedd
  2. N

    Adding Extra Cable

    Hi all Need to up grade 3 core 6mm swa up to 10mm can anyone see any problem with running  second  6mm swa in parallel with the original to help keep cost down. Your comments please.
  3. N

    Moving Cu

    Hi Steptoe A bit late but is this. what you was looking for.
  4. N

    Maximum Demand

    Hi all I was told by a lecturer an acceptable method of calculating maximum demand as required on EIC. I think it was, add all fuses or mcbs at the db together then divide the total by 40 the remainder is the demand is this right or not. If not which is the best way to calculate the load...
  5. N

    TT earthing arangment

    Thanks Zeepark
  6. N

    TT earthing arangment

    Hi can any one help, I have a TT earthing arrangment I have a Ze reading of 28.1 ohms my ring main has a R1+R2 of 0.65 so Zs=Ze28.1+R1+R2 0.65=Zs 28.75 Bs7671 is asking for 1.44 up to 32A x.8=1.15ohms I'am getting 28.75 what am I not understand. Regards Apprentice sparks
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