You are correct that fuse protection in the British cord is for fault
protection of the building wiring. I could be wrong, but I thought that
there were two fuses in the plug. Perhaps others can comment on this.
Fusing of the neutral is a messy issue. If you use only one fuse, it cannot
be in the neutral. If you use a fuse in the line and a fuse in the neutral,
the warnings you indicated must be present.
Richard Woods
----------
From: [email protected] [SMTP:[email protected]]
Sent: Friday, October 06, 2000 3:15 PM
To: [email protected]
Cc: [email protected]
Subject: RE: Overcurrent Protection: One or Both Sides?
Richard,
> To prevent unexpected hazards to service persons, that fuse may
not be
place in an identified neutral line.
It is permitted to place a fuse in an identified neutral line
provided that
the "live" side is fused + special information/marking is given
> Having said that, the UK and some other parts of the world have a
power
mains setup that allows for heavy earth fault currents from either
pole. So
they use dual fused power cords.
Could you give an example of "dual fused" power cord? The British AC
plug
is equipped with just one fuse connected to the "L" side. But as I
understand this "system" is used to protect their unique building
wiring,
not the equipment.
John Radomski
Compliance Engineer
Clare Corp.
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