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EICR Certification DNO Fuse

Chivers
What are peoples thoughts on completing Certificates with regards to DNO fuses.


When you complete a Certificate Technically you do not remove the DNO Cut out fuse so you do not know 100% what the Fuse size is so would you personally put the fuse down as a 1362 type 2 and note down the rating advised by the Supplier or put this down as a Limitation? Up to this week I had normally put the rating as Written on the Fuse carrier by the DNO so 100A = 100A , 80a = 80a etc... I test the ZE/ZS at the closest place to the Suppliers cut out & note this down as the EFLI.


A colleague of mine has recently been "critical" of this stating we should be putting it down as a limitation as we can not guarantee the fuse is exactly what it says on the carrier.
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    AncientMariner:

    Paperclips certainly must have a BS fuse rating since A COUPLE OF YEARS AGO I found one in parallel with an open circuit 60A fuse in a SEALED cutout. (The meter was being changed and the fuse carrier was already out and I asked the meter fitter what fuse was fitted.) He fitted a 63A fuse before he left.

    Going by the discolouration of the paperclip, there must have been some high power loads at some time following the "upgrade". http://ancient-mariner.co.uk/public/IMG_1024.JPG

    Clive


    that was our on-site electricians trick, bits of armouring wedged in behind a blown fuse, carefully done so it couldn't be seen without taking the fuse out, right up to 630a fuses were found like that


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  • 0
    AncientMariner:

    Paperclips certainly must have a BS fuse rating since A COUPLE OF YEARS AGO I found one in parallel with an open circuit 60A fuse in a SEALED cutout. (The meter was being changed and the fuse carrier was already out and I asked the meter fitter what fuse was fitted.) He fitted a 63A fuse before he left.

    Going by the discolouration of the paperclip, there must have been some high power loads at some time following the "upgrade". http://ancient-mariner.co.uk/public/IMG_1024.JPG

    Clive


    that was our on-site electricians trick, bits of armouring wedged in behind a blown fuse, carefully done so it couldn't be seen without taking the fuse out, right up to 630a fuses were found like that


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