In message <ce176571.1bbc2%[email protected]>, dated Thu, 25 Jul 2013, Scott Xe <[email protected]> writes:

Now more and more new portable extension sockets have USB power sockets in addition to normal multiple socket-outlets.  What is appropriate standard for this type of product?  The following standards have been considered:-

BS 1363-2 ? As the multiple socket-outlets contain electronic circuitry, it is outside this standard. EN/BS 60950-1 ? It fits the USB power sockets whereas the 13A multiple socket-outlets are more suitable for BS 1363-2.

Apply these two to the parts to which they are obviously applicable

BS 5733 ? As above, the product has specific standards.  It may not fully applicable for this one.

It isn't.

If a product falls into more than one standards, should it apply to them all or the most worst one.  Your guidance is appreciated.

All, but each to the part it's intended for. It's not usually possible to pick a 'worst' one and any way if you did, it probably wouldn't be right. For example, you wouldn't apply a 6 kV test to a USB socket!

The standards work hasn't really caught up with the type of extension board that you mention. Unfortunately, BSI doesn't disclose what updating work is going on.
--
OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk
Why is the stapler always empty just when you want it?

John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK

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