BS1361 type IIb fuse, short circuit capacity

Hi Guys,

On the domestic electrical installers certificate it asks for the short circuit capacity of the supply’s protective over current device (distributors cut out). In this case the fuse is a BS1361 type IIb. Unfortunately its short circuit capacity is not marked on the case.

Is this rating in the regs anywhere or should I enter N/A on the certificate?

Thanks.

 

Many thanks for your speedy reply. Where did you look this up?

 

Top stuff. Many thanks.