Export LED lighting products failed to detect these reasons!

LED lighting products exports have a blowout, but the quality of security has yet to be strengthened. The author is a staff member of entry-exit inspection and Quarantine Bureau, this paper analyzes the typical cases of the LED light source and LED lighting products, and gives some suggestions to improve the quality of export products.

1 case analysis

1.1 case one

A certain enterprise to accept the export of a number of LED bulbs, according to the requirements of sampling, inspection agencies in accordance with the requirements of the 1EC62560-2011 version of the product testing. After testing, found that the LED light bulb has two problems: 1, the lack of standard requirements of the mark; 2, withstand voltage test was breakdown.

1.1.1 labeling requirements are as follows: 1, the source sign (which can take the trademark, manufacturer or vendor name); 2, rated voltage or voltage range ("V" or "V" said); 3, rated power ("W" or "W"); 4, rated frequency ("Hz" said).

Manufacturers, trademarks and other marks are an important part of. The lack of source mark, consumers can not find the bulb manufacturers or distributors by instruments, product quality problems are found and there is no way to return; the lack of source markers, the government and other relevant departments lack of tracking important means of production enterprise through the product, disturbed the market order.

The 1.1.2 standard requires a test of resistance between the L/N and other accessible parts of the bulb. The test voltage is 2U+2000V (U lamp rated voltage), the test time is 1 minutes.

The electrical strength test is a major test item to be exported to the LED bulb. Not through the test of electrical strength will make the internal components of the short circuit, the risk of electric shock and fire, people's lives and property caused a serious threat to security. During the test, the LED bulb is flashover and breakdown. After dismantling, found that the LED lamp inside the live parts and metal heat dissipation shell is too small, the gap between the LED bulb can not withstand the standard provisions of the electrical strength.

1.2 case two

A certain number of enterprises to accept the export of the EU LED lights, according to the requirements of sampling, inspection institutions in accordance with the requirements of the 1 EC60598- 1-2008 version of the product testing. The LED lamp has the following problems: 1, to mark by wiping experiment; 2, not through the dielectric strength test; 3, ground unmarked, unused yellow green color ground; 4, the supply cord diameter less than the standard requirements.

1.2.1 logo is an important reference data for consumers to use appliances, in order to ensure the long-term readability of the label, LED lamp must be marked durability test. Test methods are as follows: water and gasoline to wipe the 15s, the label should not appear off, curling or fuzzy can not be identified. The sample did not use the screen printing or increase the protective film and other means to protect the product marks, resulting in failure to mark the durability test.

1.2.2 electrical strength test, to prevent the impact of surge, to protect the safety of consumers and appliances, electrical equipment must be tested by the electrical strength. The voltage between the two poles of the sample and the earth outside the 1500V should last for 1 minutes. After analysis, the cause of the failure of the electrical strength of the reasons for the use of isolation transformers can not meet the standard requirements, isolation transformer in the 1200V when the breakdown has occurred.

1.2.3 grounding terminals shall be grounded symbols, and the use of special yellow and green two-color power supply wire. The grounding wire should use the yellow green color and yellow green color line can only be used for grounding, grounding devices at the same time, through cognitive marker symbol grounding installation and maintenance personnel can clearly part of the grounding device has good performance, safe use of electricity consumer protection.

1.2.4 samples show that the product of the waterproof and dustproof grade is greater than lP20, to achieve a certain waterproof and dustproof requirements for non ordinary lamps. Non ordinary lamp working environment is bad, the mechanical strength of higher requirements for power line, to ensure that the products in the process of using the power line is not broken and power requirements, standards of non ordinary lamps external cord wire diameter of at least 1.0mm square requirements. The power cord supplied by the sample is only 0.75mm square, less than the standard requirements.

2 summary and business solutions

2.1 according to statistics, the export of LED lighting products are mainly focused on the identification of substandard items. Identification of the total number of unqualified projects accounted for more than 50%, but the problem is the easiest to identify the problem. Mainly because the company failed to pay attention to the problem of marking, or their own scientific research strength is not enough to understand the standard requirements of the project.

Enterprises can strengthen their own degree of attention, improve the factory inspection process to ensure the integrity and durability of the mark, you can put the leakage mark, durability and other issues such as marking.

2.2 the failure rate of the electrical strength of the overall unqualified items accounted for more than 20%, the strength of the electrical resistance is caused by a variety of reasons. Mainly the use of unqualified electronic components or structural design is unreasonable, creepage distance and electrical clearance is too small, etc..

Enterprises need to establish incoming inspection system, to ensure that the selected components meet the requirements of the standard; at the same time, improve the quality of staff, participate in safety training, to ensure the products designed to meet the creepage distance and clearance requirements for electrical appliances.

2.3 grounding measures, as well as the external connection of the project and the reasons for the failure of the label, can enhance the degree of attention