Hello Heiko: To my knowledge, this should not be a problem.
Mel Pedersen Midcom, Inc. Homologations Engineer Phone: (605) 882-8535 [email protected] Fax: (605) 886-6752 ---------- From: Heiko K|hling[SMTP:[email protected]] Sent: Tuesday, June 03, 1997 3:16 PM To: [email protected] Subject: Tracking Index (CTI) Hello Treckers, I have a question regarding the tracking index. The tracking index will be "measured" according to IEC 112. The test condition for applied probes is given with a minimum thickness of 3mm . (If the sample has a thickness less than 3mm, they shall be stapled up to 3mm in order to garantee the comparebility of testresults). I checked the yellow book from UL and usually plastic materials under 3mm are not tested for CTI. Can we apply a higher CTI - value in order to reduce creepage distances for materials with a thickness less than 3mm? Heiko K|hling e-mail: [email protected] RCIC - http://www.rcic.com Regulatory Compliance Information Center
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