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Subject: Re: EN 50091-1-1 UPS Emergency switching device

Date: 10/12/02 at 7:53 AM
Posted by: CB
E-mail: consulting@microvolt.com
Message Posted:

In Reply to: EN 50091-1-1 UPS Emergency switching device posted by Cesar Gomez on 10/10/02 at 4:33 AM:

I don't have copies of standards you have mentioned above, however, I shall attempt to comment according to the above cited or given information.

(a) All (future) UPS shall be equipped with an integral single switch . This means there will be one switch, which will be part of UPS circuit. This switch can be some sort of terminal device which can CONTROL several UPS in a given installation(s)
(b) The word reliance refers to some sort of "interconnection" or "interlocking"

Hope this helps to clarify confusion(s).

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