In article ,
Fredxxx wrote:
As usual, you miss the point entirely. Why fit fuses - where there's no
fire risk - if there is no method given for replacing them in service?

Why, so that a potential fault doesn't cause a fire. Making the fuse a
serviceable item, doesn't remove the original fault.

A good example is here;
http://www.vauxhall.co.uk/zafiracustomeradvice.html

There is no high current source on a boiler PCB, unlike a car. The mains
side has a user replaceable fuse.

I've had a couple of dimmers fail recently - after a halogen bulb has
failed and shorted for an instant. Just burnt out a track on the PCB - no
fuse there.

If the PCB is scrap after any fault, a cheaper way of doing it than PCB
fuses.

--
*Why is it that doctors call what they do "practice"?

Dave Plowman London SW
To e-mail, change noise into sound.