I don’t think direct plug-in equipment is exempted from the plug regulation. I 
believe that there is a different application as long as the detachable 
plug-adapter has a design such that it only attached to the direct plug-in 
power supply it is intended to be used with. The fuse is inside of the power 
supply and the whole assembly is fused as required. In this case, the fuse is 
not replaceable and the end user has to replace the supply if the fuse opens, 
but it is still fused. There are limitations to this construction as there can 
be no cord and the plug adapter must be designed such that it only reasonably 
fits onto the intended direct plug-in adapter. The complete assembly is tested 
to EN 60950-1, but this still requires the plug to comply with BS 1363 and this 
can only be accomplished with the two parts assembled together. I expect the 
same approach to be taken with EN 62368-1.

In summary, for direct plug-in equipment, the fuse can be located in the power 
supply but the full assembly still needs to comply with the relevant parts of 
BS 1363.

I will also note that this is an area that is not overlooked in market 
surveillance. Various groups are concerned with the safety of direct plug-in 
supplies and there is independent testing that occurs. The following press 
release was issued yesterday.
https://www.tradingstandards.uk/news-policy/news-room/2016/warning-over-fake-chargers-and-second-hand-electrics


Ted Eckert
The opinions expressed are my own and do not necessarily represent those of my 
employer, BSI, ASTA/Intertek or any other test agency.
.

From: Scott Xe [mailto:scott...@gmail.com]
Sent: Saturday, December 3, 2016 7:02 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] British question, about a BS1363 plug-in power supply

It is interesting finding!  I believe the direct plug-in equipment is exempted 
from BS 1363 plug regulation but have to meet with end product standard such as 
EN 60950-1 as long as the pin module complies with the dimensional requirements 
of BS 1363.

The chargers of Apple, Samsung, JBL, LG, etc. for mobile phones, BT speakers, 
headphones, etc. do not have a fuse in the plug.  However,  Apple’s chargers 
for iPads and Microsoft chargers for Surface tablets do have a fuse in the plug 
of their direct plug-in equipment.

Looking forward to hearing the legal basis from other experts!

Scott




From: John Woodgate <jmw1...@btinternet.com<mailto:jmw1...@btinternet.com>>
Reply-To: John Woodgate <jmw1...@btinternet.com<mailto:jmw1...@btinternet.com>>
Date: Saturday, 3 December 2016 at 9:01 PM
To: <EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG>>
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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