Determining device designation of rewirable fuses

They do make a very satisfying BANG unlike MCBs which are just a Thwack! At least 30A ones. Good stuff

we have loads of those Bill ones in service, mostly inside isolators


we did have some 100a BS3036 boards, the fuses were white porcelain and maybe 5-6 inches long


insert them from the bottom, and push smartly up and in while looking away, was the advice given to me by an old electrician


advice that applies in other situations too!

From the same era, I have been told by the older sweats that the traditional cotton twill flat cap may used to hold the fuse on suspect circuits to act as a simple arc mitten and also with a beating motion as basic emergency extinguisher for small fires.

This is not really advice that should be written into any modern risk assessment - it may lead to  comment at the review stage.


(a flat cap in a break glass box beside the board perhaps ?)

The ubiquitous flat cap was the cure of many ills in al;l trades not just electrics, pencil holder, dust protector and as a mark of rank. An older hand told me many years ago in Scottish Shipyards everyone wore them, but the foreman wore a bowler. One day a flat cap bloke was effing and blinding at his foreman until he put his bowler on then his demeanor changed instantly. It was his way of showing respect for the bowler rather than the chap wearing it. LOL.


Yep a flat cap beats any multi purpose swiss navy knife any day


I used to love those old black and white films when Dad would open the door, step in his house, take his cap off and say "There`s been trouble at t`mill".


In modern USA they`d say "Be advised, at this time, we have a situation!" What the heck did that mean?

Of course you wouldn't wear your best or even second-best flat 'at to work, nor your bowls one.


Nowadays you have quite a decision to make - do I put it on top of, or under my Bob the Builder hard hat? ?

The wire is the same, it’s only the fuse wire holder that varies.


Unless it is some of the dodgy stainless steel fuse wire that was being sold a few years ago by the big DIY sheds.