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Twin and Earth cabling

Hi,

I'm using twin and earth cables for a office building refurb. In the BS 7671 regs i can only see cable current carrying capacities for these cables in thermal ceilings and walls, this will not be the structure for the office building internally. How can i size the twin and earth cables?  I.e are there alternative tables?  I hope you can answer soon.

Regards

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  • This question is horrifying.

    I disagree - we all have to start somewhere and if you don't ever push yourself beyond what you already know and are comfortable with you'll never progress. Asking questions is always good - there will always be some holes in anyone's knowledge and far better to recognise that and seek answers than plough on in ignorance.

    My advise is always make sure that the answers you're given make sense to your - never just accept things that don't seem to add up just on trust - and certainly never on the sole basis that whoever gave you the answer holds some piece of paper that says they should know what they're talking about. Pieces of paper are often wrong (the state of the industry when it comes to EICRs illustrates that) and even when someone does actually understand the subject properly it still doesn't guarantee they're actually understood your particular question correctly.

       - Andy.

  • Indeed AJ. I wonder where chartered electrical engineers go when they seek assistance, or perhaps they don’t need to if they know it all. For those that don’t, I would have thought that this forum would be a welcoming and understanding place to lay their chest bare!

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  • Indeed AJ. I wonder where chartered electrical engineers go when they seek assistance, or perhaps they don’t need to if they know it all. For those that don’t, I would have thought that this forum would be a welcoming and understanding place to lay their chest bare!

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