This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

what sort of service protective device is this?

Former Community Member
Former Community Member
hi went to look at a job and the main fuse is one I didn't recognise and couldn't find one like it online can anyone tell me the code for it?62db4c3504b194a9635f56c32652f402-huge-img_1511.jpg
Parents
  • That service head looks funny because it is a looped service - that is to say that one cable comes in bringing supply and another goes out and onwards to feed the neighbours. Used to be common in terraces where the layout meant that fuseboards could be more or less back to back , halvng the cost of 2 supply  cables in the days when low power (sometimes "lighting only") supplies were common. (and cable was more expensive than the labour to dig the trench)

    Not normally done in new buildings now,  though still seen in street lamps, as there have be cases of problems in one house setting fire to another,  but there are plenty like this left in service

    Given the black plastic design, inside it will be a BS88 fuse almost certainly, though the rating is anyone's guess. You could call YEDL and ask, or just assume less than 100A.

    Clamps on lead cables are an area of concern, depending who put them on. There should be some linking the two lead jackets together fitted by the original installers, or maybe next door has no earthing.
Reply
  • That service head looks funny because it is a looped service - that is to say that one cable comes in bringing supply and another goes out and onwards to feed the neighbours. Used to be common in terraces where the layout meant that fuseboards could be more or less back to back , halvng the cost of 2 supply  cables in the days when low power (sometimes "lighting only") supplies were common. (and cable was more expensive than the labour to dig the trench)

    Not normally done in new buildings now,  though still seen in street lamps, as there have be cases of problems in one house setting fire to another,  but there are plenty like this left in service

    Given the black plastic design, inside it will be a BS88 fuse almost certainly, though the rating is anyone's guess. You could call YEDL and ask, or just assume less than 100A.

    Clamps on lead cables are an area of concern, depending who put them on. There should be some linking the two lead jackets together fitted by the original installers, or maybe next door has no earthing.
Children
No Data