[time-nuts] HP 5328 PSU nightmare...

Mike Naruta AA8K aa8k at comcast.net
Thu Sep 10 14:11:06 UTC 2009

Wow.  Same screw-in fuse here in USA.

I always wondered why it was the same.
Speculated that it was to save tooling costs.


Mike - AA8K

Poul-Henning Kamp wrote:

> I don't know if this was the same in other countries, but the first
> set of screw-in fuses approved for house installation in Denmark
> had the same E27 screw-socket as lightbulbs, for exactly that reason
> and some electricity companies delivered a 100W lightbulb attached
> to the fusebox with a string.
> The official pamphlet that came with your new electrical installation,
> adviced that you should always have a working 100W bulb next to your
> fusebox, so that when the fuse blew, you could screw in the lightbulb
> to find where the short were.  It gave a very clear procedure, but
> did not actually explain how this worked, leading a lot of people to
> believe that the 100W bulb attached with a string was "special".
> Poul-Henning

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