Paul,

If you are asking wheather an enclosure with a keylock would be acceptable 
means to prevent access, I would think yes.  Why not?  Anyone could carry a 
screwdriver or a set of hex wrenches around on a keychain.  I would think that 
a key would be a more controlled means of securing access to your device. 

 my opinion...
George

> -----Original Message-----
> From: Paul Smith [SMTP:phsm...@excite.co.uk]
> Sent: Thursday, October 07, 1999 6:33 AM
> To:   emc-p...@majordomo.ieee.org
> Subject:      Removeable Module requirements
> 
> 
> Equipment designed to the requirements of EN60439-1 requires that any 
> removeable modules are only removeable with the use of  a key or tool.
> 
> That seems pretty well acceptable to me as we are protectingainst 
> unintentional contact with potentially live parts.
> 
> What if the modules are not locked in place but are covered by a door that is 
> only opened with the use of a key (easy) or a tool (not so easy).
> Is this an acceptable alternative or do we need to provide 'infinite' 
> barriers to prevent contact or is a 'lockable' door with warning labels 
> acceptable?
> The only electrical device the user could contact behind the door are circuit 
> breakers, there are no fuses etc.
> 
> Any thoughts?,
> 
> Thanks,
> Paul
> 
> 
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