You need to have multiple units running at the same time. If you test 20 units for a period of 36.7 days you will accumulate the requied 17,606 hours of operation. Increasing the number of units reduce the calander time required. -----Original Message----- From: Jon Ilseng <[email protected]> To: '[email protected]' <[email protected]>; '[email protected]' <[email protected]> List-Post: [email protected] Date: Wednesday, July 22, 1998 9:58 AM Subject: Reliability Test
>For the reliability engineers out there, I am looking for ideas on how >to perform a reliability test for a Base Transceiver Subsystem with a >predicted MTBF of 16,006 hours. Researching the MIL-HDBK-781 test >plans, the shortest test time is Test Plan XXID. Test Plan XXID has a >test duration of 17,606.6 hours (1.1 X 16,006). This is equivalent to >733 days (2 years) plus Test Plan XXID allows no relevant failures. >There has to be a smarter and more cost effective method to perform a >reliability test to verify this 16,006-hour MTBF. Any ideas would be >greatly appreciated. > >Sincerely, > >Jon K. Ilseng >Senior Reliability Engineer >Samsung Telecommunications America >Richardson, TX >[email protected] >972-761-7438
