On 18/05/2011 07:07, Oli Glaser wrote:
>> >  To be absolutely safe every potential (no pun intended) failure point
>> >  should be addressed
> Yep - I think if it was me standing in 3 feet of water I would probably
> opt for something that ran on a couple of AAs:-)

In an isolated rubber / plastic case, no metal work. There is a double=20
concentric box symbol for such equipment that runs from mains I think.



--=20
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