I understood the fuse in the U.K. plug was to
protect the power cordage.  In the U.K., outlets
are supplied by a ring circuit rather than a
branch circuit, therefore the power cord could
exceed its ampacity (a U.S.A. term).  So, if no
power cord, no need for a fuse in the plug.  

I wonder if the power supply has a fuse to protect
the power supply.  If so, would this count as the
plug fuse?

 

Rich

 

 

From: John Woodgate
[mailto:[email protected]] 
Sent: Saturday, December 03, 2016 5:01 AM
To: [email protected]
Subject: [PSES] British question, about a BS1363
plug-in power supply

 

I received a 5 W SMPS plug-in power supply as part
of a multi-unit product. It has interchangeable
pins for EU, US, Australian and UK  sockets, but
it has no fuse. I think this is illegal and intend
to notify Trading Standards, as the overall
product is marketed by a prominent European
company and is widely offered on the Internet.

Is there any exemption at all for the requirement
that a BS 1363 plug in any form must have a fuse?

 

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