Per CSA standard C22.2 No. 107.1 (General Use Power Supplies), Clause 4.18.10, only electrical grade paper may be used as an insulating material barrier. UL 1012 (Power Supplies other than Class 2) allows for electrical grade paper as well as thermoplastic and other polymeric materials. I am wondering if thermoplastic (and polymeric materials) may also be used in Canadian standards, and if so, where is it specified?
Arjen Dragt Compliance Engineering Inverpower Controls Ltd. Phone: (905) 639-4693 Ext. 211 Fax: (905) 639-2918

