dno main fuse

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just fitted a shower and when filling out Characteristics of primary supply

overcurrent protective device(s) on the eic, the fuse is sealed and theres no label on to say whats inside just imprinted Bill 60A. i phoned up and all they told me was its a 100A i explained i need more info for cert- passed to someone else... then a again... for 45 mins spoke to 4 different peopleheadbang. eventually said they would send an engineer out to cut seal and look. they phoned me as i had left... engineers says it a Bill 60A - nothing else!

any one got any ideas of BS,the type or the kA would be? ?:|

also what do i put for the main switch when its the old style fuse board as its fixed. :C

many thanks wayne

 
It's not definite but they're usually BS1361, with short circuit capacity of 16.5 kA, some do have BS88s & I've seen BS3036 (that had a 60A line fuse & 30A neutral fuse, but is another story...) but 100A BS1361s seem to be the "standard" these days.

Older main switches were BS5416 but without seeing yours I can't comment, you could just put "double pole"...

 
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Normally main service fuses are BS 1361 TYPE 2 with PFC rating of 33 KA

 
If I can't determine the main fuse type , I leave it blank these days , life is too short to urine about with it anymore , or p'raps I just can't be bothered. Sometimes put 60 A and a ? . I tend to think if someone is desperate to have that info. they can sort it themselves.

 
If I can't determine the main fuse type , I leave it blank these days , life is too short to urine about with it anymore , or p'raps I just can't be bothered. Sometimes put 60 A and a ? . I tend to think if someone is desperate to have that info. they can sort it themselves.
i put sealed on the cert if its unlabled and sealed. (thanks andy c)

 
Cut the seal, Pull it out, check it, put it back in and re seal.

Obviously this is not what I do ;)

 
I always put lim on all my certs, as in limitation and explain why to the customer. I worked for a specialist testing company for a few years and in their periodics it was all they would do. Their theory was that no matter what the label was, anyone could have opened the fuse carrier and replaced the fuse/fusewire and we wern't in a position to pull it and check. I've always followed this since. Any thoughts?

 
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