hi can anyone please tell me the short-circuit capacity of a bs88 type 2 60amp for a domestic property.
thanks i thought it shouldn't exceed 16.5ka in domestic properties or is that the reading given when tested with meter.
I'm not conversant with, as you say BS88 type 2. But on any conventional HRC fuse with a breaking capacity of say 80KA ....That IS there breaking capacity no-matter what the level of the equipment that it is there protecting. It will protect that equipment upto and including a fault level of 80KA... I'm not sure if there was a 60A rating in BS88, i know there was an 80A rating... The 60A rating was always, as i remember a BS1361 HRC Fuse.
on old test form (NAPIT) it put down as BS88 type 2 but no box stating short-circuit capacity. need to know for electrical certificate to be issued for new work. thanks
Domestic fuses are usually BS1361 Type 2 which have a 33kA Capacity, cant say i've seen any BS88 ones used as supply fuses
daz-daz, BS88 type fuses were always considered as industrial fuses. As far as i remember rated at 415 vac/250 vdc and had a 80KA(ac)/40KA(dc) breaking capacity.. HRC fuses for domestic and smaller commercial installation were to BS1361. Can't remember actual KA rating but remember for a 60A rating it was .38KA for .4sec disconnection time, and .70KA for a 5sec disconnection time. Funny the things you remember and have stick in your mind, isn't it ...lol!!! Are you sure it was a BS88 Fuse?? As Caddy says the BS1361 has a type 2 demarcation, but not as i recall the BS88 Fuse...
I suppose this to be yet another enquiry for the sake of futile form-filling that when completed, no one will take notice of. If this is a domestic installation, then just record 16.5kA in that silly tick box. The common rating values of fuses will be found somewhere in the mid-section of the OSG - a wonderful bedtime fiction to send one to sleep........ Lucia.
on the old form it says bs88 type 2. i thought it had to be 16.5ka for domestic houses. so would this need to be changed