Re: Hazardous zone

From: <Jack>
Date: Thu Mar 22 2007 - 12:45:00 EDT

Hi Bruce

....I appreciated your answer to Amit....These things are critical and I think you gave him good advice. Can I ask about the strategy of reducing, say a Class 1, Div 2 area, to an unclassified area?.....my understanding is that this can be done if the ventilation rates are 12 air changes per hour or higher. This requires that the Fans have a proof of operation and perhaps alarmed for failure. Is this something you know about and can comment on?

thanks for your answer in advance.....

Jack

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Jack Osborn, P.E.
Mechanical Engineer
IC Engineering
510 242 - 3094

[Non-text portions of this message have been removed] Received on Thu Mar 22 12:45:00 2007