The fixtures on the fixture mounting surface and the ceiling of the building are commonly referred to as ceiling fixtures. The ceiling fixtures are used to provide indoor ambient illumination. The light sources that can be used in indoor lamps include ordinary incandescent bulbs, fluorescent lamps, high-intensity discharge lamps, and tungsten halogen lamps. Different lighting sources have different places for ceiling lamps. How to buy ceiling lamps? Lamp main safety requirements and electromagnetic compatibility requirements How to buy ceiling lamps The ceiling lamps are often used in homes, offices, conference rooms and other places. When purchasing, you should first consider the safety and quality of lamps, and then consider the room size, height, and function. . 1, into the regular shops, buy regular goods, formal invoices, do not buy the price of too cheap products, buy a "three guarantees" commitment to the product. 2. Advertising is for reference only. It is very important to consult the inspection report. In particular, check whether the items such as protection against electric shock, durability test and resistance to combustion are qualified in the inspection report. 3, should look at three when purchasing. A look at the product identification is complete, regular product identification is often more standardized, at least should mark the following: trademark or factory name, product model specifications, rated voltage, rated frequency, rated power. Check whether the product model conforms to the model specifications of the inspection report and the safety certification certificate, and whether the electric parameter is correctly identified. Second, look at the lamp power line, the cross-sectional area of ​​the conductor should be ≥0.75mm2. Third, look at whether the lamp charged body is exposed. After the light source is installed in the lamp holder, the finger should not touch the live metal lamp holder. Lighting brand ceiling lamp room Touch Control Faucet Water Saving Devices,Energy Efficient Faucets,Water Saver Taps,Touch Switch Faucet SHENZHEN KING OF SUN INDUSTRY CO.,LTD , https://www.handybasinfaucet.com
1. The cross-sectional area of ​​the internal wiring of the lamp/external wiring should be greater than 0.5mm2/0.75mm2. 2. The lamp should be capable of durable use. Lamps that use fluorescent lamps should use ballasts that can not only function normally under normal conditions, but also provide abnormal protection in the event of lamp aging or damage. Incandescent light bulb housings, lampshades, insulated lampholders, etc. shall not be charred or deformed during the durability test. 3, enough creepage distance and electrical clearance. 4. The insulating materials of the main safety components in the lamps should be heat-resistant and fire-resistant. 5, lamps should have sufficient protection measures against electric shock. 6, lamps should have a reasonable structure design and complete processing technology. 7. The electromagnetic disturbance of the luminaire should be within the limits specified in the standard. 8. The harmonic current of the lamp should be within the limits specified by the standard.
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