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Certificates

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Certificates

Post by yvonnew on Thu Jun 21, 2012 3:32 am

Hi Everyone what are you recommending for this I would say it is the supply cable from the DNO? so usually 16mm for domestics.
But most contractors put down the size of the tails. have been wanting to ask this question for ages!

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Re: Certificates

Post by Dunc on Thu Jun 21, 2012 7:02 pm

Would say this is the supp;y tails that the contractor installs or in the case of an EICR the tail size between the meter to the consumer unit in the case of a domestic installation the size of the DNO cable wouldnt be recorded on a BS 7671 cert i wouldnt have thought unless just for information.

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Supply conductors

Post by aidanb on Tue Jun 26, 2012 6:49 am

Page 45 of the I,T & Certification book (niceic) refers to the meter tails.

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Re: Certificates

Post by terry gray on Mon Aug 20, 2012 5:33 pm

In answer to this question, I would advise a contractor to make an assessment around the characteristics of the supply ie, the size of the cutout fuse and the anticipated Maximum Demand of the electrical installation. From this some engineering judgements can be made. Generally, with 80 Amp BS 1361/88 cartridge fuse in place 16mm tails and 100 amp fuse 25mm tails would be suitable. On the topic of Maximum Demand, there is a very useful article in our Connection News Letter 160, which can be obtained on-line that I endorse to my contractors.

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Re: Certificates

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