IEC Central Office 3, rue de Verenbe, P.O. Box 131, 1211 Geneva 20 SWITZERLAND http://www.iec.ch
TUV Rheinland Group Am Grauen Stein, D-51105 Cologne http://www.tuv.com
Underwriters Laboratories, Inc. Publications Stock 333 Pfingsten Road Northbrook, Illinois 60062 USA http://www.ul.com
China Compulsory Certification mark http://www.ccc-mark.com
Japanese standards Association 1-24, Akasaka 4, Minato-ku Tokyo 107 Japan http://www.jsa.or.jp
VDE-Verband Deutscher Elektrotechniker Merlinstrasse 28 D-63069 Offenbach Federal Republic Of Germany http://www.vde.de