Standards are the basis of product quality. Understanding standards and implementing standards is an important task to improve product quality. When we implement standards and ensure product quality as the basic principle of the company, ubiquitous lamps will provide safe and harmonious work. The living and entertainment environment enables people to fully enjoy the happy life brought by the light. The significance of the standard GB7000.1-2007 "Lamps Part 1: General Requirements and Tests" was released on November 12, 2007, and will be implemented on January 1, 2009. As a general requirement and test standard in the safety standards of lamps, GB7000.1 is cited by other standards of GB7000 series and is the basic standard for lamp safety. Compared with the 2002 version, GB7000.1-2007 has changed a lot, such as the removal of Class 0 luminaires in the luminaire classification, the increase of the abnormal conditions in the durability test, and the expansion of the illuminating abnormal circuit conditions. Scope, etc., these changes will have an impact on the lighting industry, especially the lighting industry. Differences between old and new basic standards For the implementation of GB7000.1-2007 standard, the author now makes the main difference between GB7000.1-2007 and the previous version of GB7000.1-2002 "General Safety Requirements and Tests for Luminaires" (hereinafter referred to as "old standard") analysis. (1) The new standard removes Class 0 lamps Definition of Class 1.0, Class I, Class II and Class III lamps According to the type of anti-shock type, the lamps can be classified into Class 0, Class I, Class II or Class III lamps, which are defined as follows: (1) Class 0 lamps Relying on basic insulation as a luminaire for protection against electric shock. This means that the accessible conductive parts of the luminaire (if such parts) are not connected to the protective conductors in the fixed wiring of the facility, and in the event of a failure of the basic insulation, they have to rely on the environment. (2) Class I lamps The protection against electric shock of the luminaire not only depends on the basic insulation, but also includes additional safety measures, that is, the accessible conductive parts are connected to the protective grounding conductors in the fixed wiring of the installation, so that the accessible conductive parts fail in the event of basic insulation failure. Do not bring electricity. (3) Class II lamps (4) Class III lamps Protection against electric shock relies on a supply voltage that is safe extra low voltage (SELV) and does not produce a luminaire that is higher than the SELV voltage. The necessity of deleting type 2.0 lamps (1) Basic rules for protection against electric shock Under normal conditions or under single fault conditions, hazardous live parts should not be touched and accessible conductive parts should not be dangerous live parts. Protection under normal conditions is provided by basic protection and protection under single fault conditions is provided by fault protection. Enhanced protection measures provide protection in both cases.
The protection against electric shock of luminaires depends not only on basic insulation, but also on additional safety measures such as double or reinforced insulation, without protective earthing or depending on installation conditions.