On Monday, 6 January 2020 12:57:13 UTC, wrote:
On Monday, 6 January 2020 11:26:10 UTC, whisky-dave wrote:

What appliances do not need a fuse?

Aga cooker. Gas ascots. My electric toothbrush doesn't have a fuse, and niether does the charging station (that I know of) the 2 pin plug goes into an atapter
which does have a 3 amp fuse in it IIRC, same as with my shaver.

Are you sure the charging station doesn't have some form of internal
fuse?

I assume it does but we are talking about appliancies where the fuse can be replaced. AFAIK my toothbrush does NOT contain a fuse.
The charging station should have a fuse as that is the ONLY section connected to the mains supply and in accordence with UK electrical safety must contain some sort of fuse, whether it is current or temperature driven,
resetable or not I don't know, but it is most likely a non-servicable pat the
a user shouldn't replace.

The statement was what appliances NEED a fuse and not whether they have one or not, there is a differnce there too.


If an appliance uses an "inherently short-circuit proof" mains transformer
for its power supply, it does not need any kind of fuse - not even an
over-temperature fuse inside the transformer.

That's what I assumed as not everything needs a fuse, light bulbs tend not
to have fuses. Then you have the difficulty of deciding what an appliance is.
Which for most mean something in a specific range of products.
The vast majority of which will end up being plugged into the mains and that
item will have a 3 pin plug on the end.

I'm not sure if my hard wired cooker has any fuse(s) inside.
But once when I left one ring on by mistake it some how switched it's self off
after an hour or so.


I have designed such products and had them successfully tested by Intertek.

John