This standard is equivalent to IEC60923:2006 "Performance requirements for ballasts for discharge lamps (excluding tubular fluorescent lamps) with accessories for lamps" (English version). For ease of use, this standard has made the following editorial modifications to IEC60923:2006: a) IEC60923 has been changed to this standard, and the term "IEC60923" has been changed to GB/T15042; b) Delete the preface and introduction of IEC60923; c) Using a decimal point instead of a decimal point,; d) For other international standards referenced in IEC60923:2006 that have been equivalently adopted as Chinese standards, this standard replaces the corresponding international standards by referencing these national or industry standards of China. For other international standards that have not been equivalently adopted as Chinese standards, they are directly referenced in this section (see 1.2 of this standard). This standard replaces GB/T15042-2005 "Performance requirements for ballasts for discharge lamps (excluding tubular fluorescent lamps) with accessories for lamps". The main differences between this section and GB/T15042-2005 are as follows: - In 3.7 of GB/T15042, special attention should be paid to lamp performance standards that contain information for ballast design. These materials must be followed for qualified lamp work. However, this standard does not require lamp performance testing as part of ballast type testing certification. One paragraph, forming the last paragraph of Chapter 4 of this standard--- Ballasts for discharge lamps of other models that meet the thermal performance requirements of A.2.5.1 in Appendix A of GB/T15042 have a large volume and high price. The reference ballast for other models of discharge lamps that meet the thermal performance requirements of A.2.5.1 of this standard has a large volume and high price--- Change the resistance symbol 犚 2 in 9.2 to 犚. Appendix A, Appendix B, Appendix C, and Appendix D of this standard are normative annexes, while Appendix E and Appendix F are informative annexes. This standard is proposed by the China Light Industry Federation. This standard is under the jurisdiction of the National Technical Committee for Standardization of Lighting Appliances (SAC/TC224). This standard was drafted by Fujian Yuanguang Yaming Electrical Appliances Co., Ltd., National Electric Light Source Quality Supervision and Inspection Center (Shanghai), and Foshan Huaquan Electric Lighting Co., Ltd. The main drafters of this standard are Zhang Hequan, Lin Xing, Yu Anqi, Qu Zhiyang, and Ke Baiquan. The previous versions of the standards replaced by this standard have been released as follows: - GB/T15042-1994; GB/T15042-2005