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10mm

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  1. B

    Bonding to gas 6mm vs 10mm

    When bonding to gas 10mm seems to be the norm these days. I came across a pme install with a 60 amp cut out and 16mm tails with 10mm main cpc. The bond was in 6mm with R2 well under 0.5 ohms. So I ask the question, should this be upgraded to 10mm or will 6mm suffice, and if so why? Would be...
  2. G

    10mm tails

    I know that 25mm tails are the norm, but if the outgoing tails from the meter are in henley blocks, there is 1 main switch for the installation, the outgoing tails to a small board (2 way) are 10mm and less than 3 meters is this ok. The tails to the main board are 25mm by the way. Have seen...
  3. J

    10mm out of Henley Block to RCD?

    Hello folks I have to fit an electric shower in a house that has an old wylex domino style board but no room for a plug in MCB. The house has an electricity meter on the meter tails thats been installed with a Henly block which has a spare slot for live and neutral. Can I go into this with...
  4. C

    10mm twin & earth supllying DB

    Hi everyone ive been to look at a board change in a two bedroom flat the db is supplied from a meter room with 10mm twin & earth via a 63 amp switch its a tncs system. The earth from the met in the meter room to the 63a isolator is 16mm but from there to the db is only 4mm coming from the 10mm...
  5. S

    Looking for the perfect sleeving size for the CPC in 10mm T&E

    I have 3mm and 4mm G/Y sleeving and can't see me using the 4mm sleeving. Gonna return it I think. Made the mistake in mixing up cable size (mm²) and diameter(mm) when purchasing:rolleyes:. Anyway, this 3mm sleeving provides a lose fit on 2.5mm² copper core. Anyone know if provides a 'just...
  6. S

    running 10mm for shower external

    customer has asked me to run 10mm twin and earth external due no damage to new fetted kitchen. thinking of useing 25mm pvc conduit straight run about 6m no bends, checked osg says ok just wondering has any one had to do this does it fit ok or any suggestions please?
  7. S

    Alternatives to 10mm T&E

    Any know any good alternatives to 10mm T&E for a shower run? cheers.
  8. J

    10mm earths on sub boards

    Is it acceptable to earth bond the water in 10mm to a sub board in the installation if the supply earth feeding the sub board is 10mm or greater? or does it have to go back to the main earth terninal? Any help much appreciated

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