Gary,
T1 is the steady state time at each temperature and does not include the ramp times. A full cycle will therefore nominally take 5 hrs 20 mins. Regards, Amanda ------------------------------------------------------------------------------------------------------------------ Dr. Amanda Rawlinson Laboratory Services Director E-mail: [email protected] Tel: +44 (0) 2476 56 4507. MCNet 740 4507 FAX: +44 (0) 2476 56 2613 Mobile: +44 (0) 07801 609 768 Laboratory Services Test Centre http://www.marconi.com "Gary McInturff" <[email protected]>@majordomo.ieee.org on 12/12/2002 22:53:20 Please respond to "Gary McInturff" <[email protected]> Sent by: [email protected] To: "EMC-PSTC (E-mail)" <[email protected]> cc: Subject: ETSI mechanical specs ETSI 300-019-2.3 I'm lost and looking for just a quick sanity check. We normally don't need to comply with these specifications so I don't yet have the underlying standards IEC60068-2-14 method Nb, for example. Table 5 of the ETSI test spec for air temperature says for air/air Test Severity is -40/+30 and a 1C/min change. The duration says 5 cycles T1 = 3h Assuming by cycle they mean up and back that only accounts for 140 minutes out of the 210 minutes in the 3 hour test cycle. Are they trying to tell me that there is a dwell time and teach level, of about 35 minutes each. That at least accounts for the missing 70 minutes? Gary ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list" ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
