On Tuesday, 18 August 2020 10:55:44 UTC+1, Dave Plowman (News) wrote:
In article ,
Scott wrote:

Why do you think the system was introduced with 1, 2, 3, 5, 7, 10 and
13 amp fuses unless a lower rated fuse had safety benefits?

And it failed miserably.

On the contrary it was much more effective than the prior system


If a fuse blows, all the vast majority will do is
replace it to get it working again.

which is fine


And are very unlikely to have all
those values to hand. And the spares they are likely to find, 13 amp.

IME most people had 3A & 13A.


Hence the current method of having wiring capable of taking out a 13 amp
fuse if there is a sort somewhere without causing a fire. And protecting
the device itself with its own fuse if needed.

Yup. But historically it did work a lot better than the old 2/5/15A system.


NT