PRISM Forum - Message Replies


Topic: PRISM Questions and Answers
Topic Posted by: SRC (src_forum@alionscience.com )
Organization: SRC
Date Posted: Wed Jan 12 8:33:33 US/Eastern 2000
Topic Description: Welcome to the PRISM forum! Please feel free to post your questions and comments about the PRISM assessment software here.

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Original Message:

Posted by: Giovanni Luciani (giovanni.luciani@galileoavionica.it )
Organization:Galileo Avionica
Date posted: Tue Apr 13 10:05:36 US/Eastern 2004
Subject: Duty cycle assessment/Operating hours conversion
Message:
Hello Suppose to have an item with 360 yearly operating hours distributed among 240 yearly operating days, the duty cycle will have to be assessed dividing the annual operating hour by 240*24 or 365*24? Thank you in advance for your support Thank you for your support


Reply:

Subject: Duty cycle assessment/Operating hours conversion
Reply Posted by: Nathan Holzhauer (nholzhauer@alionscience.com )
Organization: Alion Science and Technology
Date Posted: Tue Apr 13 11:04:40 US/Eastern 2004
Message:
The operating hours would be divided by 365*24 to obtain a proper Duty Cycle form PRISM. Calendar days, not Operating Days, are the basis of the RAC Rate Models. The Duty Cycle should be 4.21%. That there are some days of the year that the unit is completely non-operational is taken into account by this percentage.


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