Dave, I am not aware of any 'specific requirement' for shutting down fans in the event of a fire, but I do know from my NEBS testing, that it is a worthwhile idea. It reduces the airflow in your product thereby reducing the intake of oxygen, as well as minimizing the progression of the fire from one shelf to the next. With the limited oxygen intake (along with the smoke not being so easily exhausted) the smoke inside the product will choke the fire out. Something to consider . . .
John Juhasz Fiber Options Bohemia, NY -----Original Message----- From: David Spencer [mailto:dspen...@oresis.com] Sent: Friday, May 26, 2000 7:18 PM To: EMC-PSTC (E-mail); Nebs List Serve (E-mail); TREG (E-mail) Subject: Fanning the Flames Hi All, I'm not sure where this question fits, so I'm sending it to all. Excuse the redundancy, as I'm sure many of you receive mail from all of these lists. An interesting question came up today regarding a fantray design and using a thermal shutdown to turn off power to the fans when it is presumed obvious that there may be a fire. It sounds like a great idea to me. However, it will be a lot easier to sell if there is a requirement somewhere to support it. Question: Does anyone know of a specific requirement to control fans in the event of a fire? This can from any source, i.e. ETSI, ANSI, or Telcordia, etc. Thanks and have a great weekend! Dave Spencer Compliance Engineer Oresis Communications, Inc. 14670 NW Greenbrier Parkway, Beaverton, OR 97006 (503)533-0717 Dir: (503)466-6289 Fax: (503)533-8233 http://www.oresis.com dspen...@oresis.com
