19 Jan
2002
19 Jan
'02
4:06 p.m.
Nowadays most small 50/60 Hz transformers have thermal fuses fitted.
It isn't mandatory but it is good practice from a safety point of view.
A lot of "power bricks" have these fuses fitted because it is cheaper
than than a separate fuse holder. If the manufacturer fitted a fuse,
you can guarantee that there is always someone who would bypass it.
Chris