We have used the design you are proposing, removable modules buried inside
with a front door requiring a tool to open. We also include the "general"
service warning advising of hazardous voltages, etc. We have our medical
equipment UL Classified to UL 2601 (based on en60601-1)and had no problem
with the classification. 
Hope this helps.

-----Original Message-----
From: Paul Smith [mailto:[email protected]]
Sent: Thursday, October 07, 1999 5:33 AM
To: [email protected]
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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