The CE marking is a symbol of the manufacturer's self-declaration indicating that the product or machine conforms to all relevant European regulations. The requirements are contained in the various European directives (laws) and standards (tests and design). Directives,along with the appropriate European standards, cover all safety, electromagnetic compatibility (EMC), health, and environmental concerns. CE marking of machinery came into effect on January 1, 1995, and EMC conformity has been required since January 1, 1996. Electrical products must bear the CE marking as of January 1, 1997, for safety. The essential requirements (ERs) for product safety have been in effect since 1973.引自第1页