GB/T 7249

📋 Scope / 适用范围 ai_extracted

This standard specifies the maximum overall dimensions of incandescent lamps (including tungsten halogen lamps). Note: For lamps with E26 and E39 lamp caps not used in China, the maximum overall dimensions may refer to IEC 60630. 1.2 Normative References The following standards contain provisions that, through reference in this standard, constitute provisions of this standard. At the time of publication of this standard, the editions indicated are valid. All standards are subject to revision, and parties using this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. GB 1406-2001 Types and dimensions of screw caps (eqv IEC 60061-1:1999) QB/T 1112-1991 Designation method for bulb shapes of electric light sources (idt IEC 60887:1988) IEC 60061-1:1969 Lamp caps, lampholders, and gauges for the control of interchangeability and safety – Part 1: Lamp caps IEC 60061-3:1969 Lamp caps, lampholders, and gauges for the control of interchangeability and safety – Part 3: Gauges IEC 60064:1993 Tungsten filament lamps for domestic and similar general lighting purposes – Performance requirements IEC 60357:1982 Tungsten halogen lamps (non-vehicle) IEC 60432 Safety requirements for incandescent lamps IEC 60432-1:1993 Safety requirements for incandescent lamps – Part 1: Tungsten filament lamps for domestic and similar general lighting purposes IEC 60432-2:1994 Safety requirements for incandescent lamps – Part 2: Tungsten halogen lamps for domestic and similar general lighting purposes IEC 61126:1992 Procedure for establishing maximum lamp outlines 3 General requirements Compliance with these requirements in luminaire design ensures compatibility with lamps conforming to this standard. This standard does not address temperature requirements; such requirements are specified separately in the relevant lamp standards. The procedure for establishing maximum lamp outlines is given in IEC 61126. The designation method for bulb shapes is given in QB/T 1112. This standard does not address safety requirements for lamps. For safety requirements, reference should be made to IEC 60432. This standard does not address performance requirements for lamps. For characteristics such as luminous flux, life, or power consumption, reference should be made to IEC 60064 or IEC 60357. Requirements for lamp caps and gauges are given in IEC 60061.

📝 Foreword / 前言 ai_extracted

This standard is a revision of GB/T 7249-1987 "Maximum lamp outlines for general lighting incandescent lamps". This standard equivalently adopts the international standard IEC 60630:1994, second edition "Maximum lamp outlines for incandescent lamps", including Amendment 1 (1997), Amendment 2 (1998), and Amendment 3 (1999), to revise the original national standard GB/T 7249-1987. The content of this standard is not entirely consistent with IEC; the E26 and E39 lamp cap series, which are not used in China, have been omitted. The technical content of this standard is fully consistent with the corresponding content of IEC 60630. The numbering rule for the sheets of this standard is as follows (e.g., GB/T 7249-1010-2): The first group of digits indicates the standard number, the second group indicates the IEC sheet number, and the third group indicates the version number of that sheet. Upon implementation of this standard, GB/T 7249-1987 "Maximum lamp outlines for general lighting incandescent lamps" shall be simultaneously replaced. This standard was proposed by the China Light Industry Council. This standard is under the jurisdiction of the Subcommittee on Electric Light Sources and Their Accessories of the National Technical Committee on Lighting Appliances Standardization. Drafting organizations of this standard: Beijing Electric Light Source Research Institute, Philips Yaming Lighting Co., Ltd. Drafters of this standard: Zhu Zhiying, Dong Jianming, Huang Pei, Yang Xiaoping. GB/T 7249-2002 IEC Foreword 1) IEC (International Electrotechnical Commission) is a worldwide standardization organization composed of national electrotechnical committees (IEC National Committees). The object of IEC is to promote international cooperation on all questions concerning standardization in the electrical and electronic fields. To this end, in addition to other activities, IEC publishes International Standards. Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) Formal decisions or agreements of the IEC on technical matters, prepared by technical committees on which all the National Committees having a special interest therein are represented, express, as nearly as possible, an international consensus of opinion on the subjects dealt with. 3) They have the form of recommendations for international use published as standards, technical reports or guides and are accepted by the National Committees in that sense. 4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. Any divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter. 5) The IEC does not provide any mark indicating conformity approval and is not responsible for any equipment declared to be in conformity with one of its standards. International Standard IEC 60630 has been prepared by subcommittee 34A: Lamps, of IEC technical committee 34: Lamps and related equipment. This second edition cancels and replaces the first edition published in 1979. The text of this standard is based on the following documents: | Draft | Report on voting | |---|---| | 34A(CO)456 | 34A(CO)518A | | 34A(CO)585 | 34A(CO)600A | | 34A(CO)638 | 34A(CO)689 | Full information on the voting for the approval of this standard can be found in the voting reports indicated in the above table. National Standard of the People's Republic of China GB/T 7249-2002 eqv IEC 60630:1994 Maximum lamp outlines for incandescent lamps Replaces GB/T 7249-1987

📚 References & Relations / 引用与关联

🔗 Related Standards / 同类标准