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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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    whereas if you can at least say it's a BS 1361 (or equivalent) 


       - Andy.




    Maybe it should be pointed out that the BS1361 for fuses was withdrawn thirteen years ago and the BS EN 1361 is for rubber hoses and the BS ISO 1361 is for tin cans, which are not much use in a fuse holder.


    So if the fuse has been installed or replaced since 2007 and is not very likely that it is to BS1361 but will be BS88-3.


    Also some of the DNO fuse holders I see are so old I question if they contain double pole fuses, I have have found some DNO intakes with double pole fuses in the last few years, one was easily identifiable because the lid had fell off,  to be fair Western Power replaced it within two hours of my call to them.


    Andy Betteridge.


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    whereas if you can at least say it's a BS 1361 (or equivalent) 


       - Andy.




    Maybe it should be pointed out that the BS1361 for fuses was withdrawn thirteen years ago and the BS EN 1361 is for rubber hoses and the BS ISO 1361 is for tin cans, which are not much use in a fuse holder.


    So if the fuse has been installed or replaced since 2007 and is not very likely that it is to BS1361 but will be BS88-3.


    Also some of the DNO fuse holders I see are so old I question if they contain double pole fuses, I have have found some DNO intakes with double pole fuses in the last few years, one was easily identifiable because the lid had fell off,  to be fair Western Power replaced it within two hours of my call to them.


    Andy Betteridge.


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