National Standard GB7000.203-2013 "Lamps Part 2-3: Special Requirements Roads and Street Lighting" was officially implemented on July 1, 2015. This standard will replace the street lamp standard GB7000.5-2005 that has been used for 10 years. . So, what is the difference between the new standard and the old standard? How should related companies deal with it? The following will answer you in detail.
What is the difference between the old and new standards?
Compared with the old standard, the new standard has the following three technical differences:
1. Increasing the maximum installation height mark requires the manufacturer to specify the maximum installation height of the product in the lamp manual. When the height of the mark is greater than 5 meters, the glass cover of the luminaire (if any) shall meet the safety requirements of Clause 6.5 of the standard.
2, modify the glass cover safety test requirements The old standard only specifies the test method of flat glass, and the new standard also incorporates the molded glass into the assessment scope, which means that the street lamp using the curved glass lampshade also needs to meet the safety requirements of the glass cover.
Compared with the old standard, the new standard adds an optional conformity assessment method, which requires the glass cover to meet the following two conditions: (1) Apply 5 joules of impact energy to the glass cover using a pendulum or vertical drop hammer. After that, the glass cannot be broken. (2) The glass is crushed using an impact head, and the number of glass fragments in a square area having a side length of 50 mm should be greater than 20.
In addition, the new standard also modified the conformity assessment method in the old standard. The conformity assessment method in the old standard is: after crushing the glass with the impact head, the number of glass fragments in a square area with a side length of 50 mm should be greater than 60. The new standard only requires glass fragments to be greater than 40.
The reader is reminded of the difference between this requirement and the requirements in the second paragraph. If the number of glass fragments is greater than 40, it can be directly judged as qualified, and the number of fragments is greater than 20, and the requirement that the glass does not break after 5 joules of impact energy is required.
3. The glass cover should be used under thermal limits. The glass cover should be used at the thermal limits claimed by the glass manufacturer. The thermal limits should include the minimum and maximum temperatures allowed for the glass, as well as the maximum Δt value.
What should the relevant companies do after the implementation of the new standards?
After the implementation of the new standard, relevant enterprises should pay more attention to the safety performance of the glass lampshade. In actual use, the temperature change of the glass should be within the thermal limit. At the same time, for the molded glass, a glass with high safety including curved tempered glass should be used to ensure that it can be broken into smaller pieces once it is broken, so as to reduce the damage to humans.
After the implementation of the new standard, it is expected that the China Quality Certification Center will issue a notice of revision in the near future. Therefore, for products that have obtained CQC voluntary certification, relevant manufacturers should always pay attention to the website of China Quality Certification Center, and complete the certificate revision work in time. Do not make the product certificate ineffective due to negligence.
What is the difference between the old and new standards?
Compared with the old standard, the new standard has the following three technical differences:
1. Increasing the maximum installation height mark requires the manufacturer to specify the maximum installation height of the product in the lamp manual. When the height of the mark is greater than 5 meters, the glass cover of the luminaire (if any) shall meet the safety requirements of Clause 6.5 of the standard.
2, modify the glass cover safety test requirements The old standard only specifies the test method of flat glass, and the new standard also incorporates the molded glass into the assessment scope, which means that the street lamp using the curved glass lampshade also needs to meet the safety requirements of the glass cover.
Compared with the old standard, the new standard adds an optional conformity assessment method, which requires the glass cover to meet the following two conditions: (1) Apply 5 joules of impact energy to the glass cover using a pendulum or vertical drop hammer. After that, the glass cannot be broken. (2) The glass is crushed using an impact head, and the number of glass fragments in a square area having a side length of 50 mm should be greater than 20.
In addition, the new standard also modified the conformity assessment method in the old standard. The conformity assessment method in the old standard is: after crushing the glass with the impact head, the number of glass fragments in a square area with a side length of 50 mm should be greater than 60. The new standard only requires glass fragments to be greater than 40.
The reader is reminded of the difference between this requirement and the requirements in the second paragraph. If the number of glass fragments is greater than 40, it can be directly judged as qualified, and the number of fragments is greater than 20, and the requirement that the glass does not break after 5 joules of impact energy is required.
3. The glass cover should be used under thermal limits. The glass cover should be used at the thermal limits claimed by the glass manufacturer. The thermal limits should include the minimum and maximum temperatures allowed for the glass, as well as the maximum Δt value.
What should the relevant companies do after the implementation of the new standards?
After the implementation of the new standard, relevant enterprises should pay more attention to the safety performance of the glass lampshade. In actual use, the temperature change of the glass should be within the thermal limit. At the same time, for the molded glass, a glass with high safety including curved tempered glass should be used to ensure that it can be broken into smaller pieces once it is broken, so as to reduce the damage to humans.
After the implementation of the new standard, it is expected that the China Quality Certification Center will issue a notice of revision in the near future. Therefore, for products that have obtained CQC voluntary certification, relevant manufacturers should always pay attention to the website of China Quality Certification Center, and complete the certificate revision work in time. Do not make the product certificate ineffective due to negligence.
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