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Standard Detailed Explanation | Interpretation of the main points of the general standard IEC 60598-1:2020 (9th edition) for lamps and lanterns (2)
Date：2020/11/2 Clicks：1232
On August 17, 2020, IEC officially released the 9th edition of the General Standard for Luminaires IEC 60598-1:2020 Luminaires-Part 1: General requirements and tests, which also marks the global lighting industry has officially entered a new stage.
We will interpret the general lighting standard IEC 60598-1:2020 (9th edition) through nine points in four issues of articles. This issue will focus on the requirements of points two to five.
Point 2: LED lamps with constant light output function or programmable current output
◆ Constant light output is an important manifestation of the intelligence of lamps. The standard 1.2.95 constant light output function of the 20th edition gives the specific meaning of this term, that is, gradually increase the current through the LED module during the entire service life to compensate for the foreseeable Light decay. This function can be achieved through pre-programming of software algorithms, or through feedback control of the light sensor installed on the lamp.
◆ As the current gradually increases during long-term use, the heat of the product will gradually increase accordingly. Therefore, the 20th edition of the standard has made special provisions for such lamps in terms of durability test and thermal test: 12.3.1(f ), 12.4.1(m) and 12.5.1(f) The lamp control device is set to output the maximum current that can be output to the light source on the design of the lamp.
Point 3 Lamps delivered without lamp control device
◆ Compared with the traditional gas discharge light source, LED light source has flexible power supply mode is one of its important characteristics, so more manufacturers choose to deliver the lamp without control device. In response to this feature, the 20th edition of the standard adds 3.2.25 rated input constant voltage and 3.2.26 rated input constant current and maximum allowable Uout value marking requirements.
◆ Correspondingly, the test power supply conditions of 12.3 endurance test, 12.4 thermal test (normal state) and 12.5 thermal test (abnormal state) of this kind of lamps are uniformly revised to 1.1 times the rated input constant voltage or 1.1 times the rated input constant current .
Point 4 Use lamps that are not replaceable or non-user-replaceable light sources
◆ The definition of rated power in the lamp standard only refers to the power of the light source used by the lamp, and does not include the power consumed by other circuits. On the one hand, the power of ordinary lamps is low compared with other household appliances, and there is almost no need to consider the burden on the power supply system during installation and use, and there is no need to worry about it exceeding the capacity of household sockets; on the other hand, the life of traditional light sources is relatively Shorter, it is a consumable product, the user must know its power in order to replace it.
◆ However, the use of non-replaceable or non-user-replaceable light sources represented by LEDs has become the mainstream. Although the 14th edition of the standard has put forward requirements on marking, structure and protection against electric shock, the untimely mark of rated power has been retained. , Until the 20th edition of the standard 3.2.8.2, newly added the provisions of the rated input power of the luminaires in the visible position of the installation.
Point 5: Rail-mounted lamps
The requirements for rail-mounted lamps are already in the 14th edition of the standard or even earlier standard editions. In order to improve the connection between IEC 60598-1 and IEC 60570, the 20 edition of the standard adds the following definitions and requirements:
◆ 1.2.101 Rail-mounted luminaires clearly define the electrical and mechanical connection between the luminaire and the rail, and the matching requirements for the anti-shock category of the luminaire and the rail;
◆ 4.14.1 Test A The rail-mounted luminaire should be subjected to a 4 times deadweight load test;
◆4.36 Rail-mounted luminaires should meet the test requirements of Appendix A of IEC 60570:2003/AMD2:2019. The IEC 60570 cited here is the standard for the power rail system of lamps.
We will interpret the general lighting standard IEC 60598-1:2020 (9th edition) through nine points in four issues of articles. This issue will focus on the requirements of points two to five.
The interpretation of point one can be viewed by clicking the following link:
Point 2: LED lamps with constant light output function or programmable current output
◆ As the current gradually increases during long-term use, the heat of the product will gradually increase accordingly. Therefore, the 20th edition of the standard has made special provisions for such lamps in terms of durability test and thermal test: 12.3.1(f ), 12.4.1(m) and 12.5.1(f) The lamp control device is set to output the maximum current that can be output to the light source on the design of the lamp.
Point 3 Lamps delivered without lamp control device
◆ Compared with the traditional gas discharge light source, LED light source has flexible power supply mode is one of its important characteristics, so more manufacturers choose to deliver the lamp without control device. In response to this feature, the 20th edition of the standard adds 3.2.25 rated input constant voltage and 3.2.26 rated input constant current and maximum allowable Uout value marking requirements.
◆ Correspondingly, the test power supply conditions of 12.3 endurance test, 12.4 thermal test (normal state) and 12.5 thermal test (abnormal state) of this kind of lamps are uniformly revised to 1.1 times the rated input constant voltage or 1.1 times the rated input constant current .
Point 4 Use lamps that are not replaceable or non-user-replaceable light sources
◆ The definition of rated power in the lamp standard only refers to the power of the light source used by the lamp, and does not include the power consumed by other circuits. On the one hand, the power of ordinary lamps is low compared with other household appliances, and there is almost no need to consider the burden on the power supply system during installation and use, and there is no need to worry about it exceeding the capacity of household sockets; on the other hand, the life of traditional light sources is relatively Shorter, it is a consumable product, the user must know its power in order to replace it.
◆ However, the use of non-replaceable or non-user-replaceable light sources represented by LEDs has become the mainstream. Although the 14th edition of the standard has put forward requirements on marking, structure and protection against electric shock, the untimely mark of rated power has been retained. , Until the 20th edition of the standard 3.2.8.2, newly added the provisions of the rated input power of the luminaires in the visible position of the installation.
Point 5: Rail-mounted lamps
The requirements for rail-mounted lamps are already in the 14th edition of the standard or even earlier standard editions. In order to improve the connection between IEC 60598-1 and IEC 60570, the 20 edition of the standard adds the following definitions and requirements:
◆ 1.2.101 Rail-mounted luminaires clearly define the electrical and mechanical connection between the luminaire and the rail, and the matching requirements for the anti-shock category of the luminaire and the rail;
◆ 4.14.1 Test A The rail-mounted luminaire should be subjected to a 4 times deadweight load test;
◆4.36 Rail-mounted luminaires should meet the test requirements of Appendix A of IEC 60570:2003/AMD2:2019. The IEC 60570 cited here is the standard for the power rail system of lamps.
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