John,
I am very insterested in your explaination on fused plug requirement
between the ring main supply system and branch or spur systems. Could you
please shed more light on to me about the fused plug requirement on the
ring main supply and a simply way to identify the said main supplies.
Thanks and regards,
Raymond Li
===================================================
John Allen <[email protected]> on 17/11/99 04:41:13 pm
Please respond to John Allen <[email protected]>
To: "'[email protected]'" <[email protected]>, "'Laura Leyba-Newton'"
<[email protected]>
cc: (bcc: Raymond Li/DixonsNotes)
Subject: RE: internet information
Laura
All UK standard power cords require to be fused - regardless of the fusing
in appliance to which they are connected - because we use a totally
different building "ring main" supply system to most other countries which
use "branch" or "spur" systems !
The main reason is that the power cord cross-sectional (0.75 - to 1.5 sq
mm) area is much less than that of the ring main (2.5 to 4 sq mm) , and
fuses have to be inserted wherever such a change occurs.
Fusing in the appliance is to protect the appliance - not the power cord.
Regards
John Allen
Racal
UK
PS: the previous threads are on the RCIC.com website.
----------
From: Laura Leyba-Newton[SMTP:[email protected]]
Sent: 16 November 1999 18:36
To: '[email protected]'
Subject: internet information
Could someone please tell me where previous EMC and safety discussions are
posted on the internet.
Also I am interested to know if a detachable UK power Cord is required to
be
fused. Products using this line cord have integral fuses in both AC lines.
You help would be greatly appreciated.
-Laura
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