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400w Led Flood Light Manufacturer Introduces Insulation Requirements For Flood Light

Today, the 400w Led Flood light manufacturer shares four key points for LED energy-saving lamp testing standards:

1. Insulation requirements
Due to the limited internal space of the LED energy-saving lamps, in the structural design, attention should be paid to the insulation requirements between the dangerous live parts and the accessible metal parts. The insulation can be a space distance and a creepage distance, or it can be an insulating sheet. According to the standard requirements, the distance between the hazardous live parts and the accessible metal parts should be 3.2 mm, and the creepage distance should be 6.4 mm. If the distance is not enough, you can add insulation sheet as additional insulation. The thickness of the insulation sheet is greater than 0.71 mm. If the thickness is less than 0.71 mm, the product should be able to withstand a high voltage test of 5000V.

2. Temperature rise test
The temperature rise test is a mandatory item for product safety testing. The standard has certain temperature rise limits for different components. In the product design phase, manufacturers should pay great attention to the heat dissipation of the product, especially for certain components (such as insulation sheets). Parts that work under high temperature conditions for extended periods of time may change their physical properties, posing a fire or electric shock hazard. The power module inside the luminaire is in a tightly enclosed space, and heat dissipation is limited. Therefore, when selecting components for the manufacturer, it is necessary to pay attention to selecting the specifications of the appropriate components to ensure that the components work under a certain margin, so as to avoid overheating due to the long-term operation of the components under conditions close to full load.

3. structure
In order to save costs, some LED lamp manufacturers solder the surface of the pin-type components to the PCB. This is not advisable. Surface-welded pin-type components are likely to fall off due to soldering or the like, posing a hazard. Therefore, it is necessary to adopt a jack welding method for these components. If it is necessary to adopt the surface welding method, it is necessary to use the "L foot" and glue fixing to the component to provide additional protection.

4. Fault test
Product failure testing is a very necessary test item in product certification testing. This test item is to short-circuit or open some components on the line to simulate the failures that may occur during actual use to evaluate the safety of the product under a single fault condition. In order to meet this safety requirement, in the product design, it is necessary to add a suitable fuse at the input end of the product to prevent overcurrent from occurring in extreme cases such as output short circuit and internal component failure, resulting in fire.

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Target Nation: Scotland
Target City : Ningbo
Last Update : 19 September 2019
Number of Views: 4
Item  Owner  : Cpcbeta
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2019-09-22 (0.112 sec)