Removable luminaires are a kind of lighting products commonly used in residential luminaires. The purpose is to provide illumination levels that are significantly higher than the surrounding area in the work area. They are often used for reading (reading), writing, drawing and computer operation areas. It is characterized in that the working position of the luminaire is desktop or ground. According to the needs of use, the luminaire can be easily connected with the power supply; however, during use, the person can easily touch the outer surface of the luminaire, and the luminaire is easily dumped by external force, and the power cord of the luminaire is easily subjected to external force. In addition to the general safety requirements, the portable luminaire should have sufficient stability and be provided with a wire stress relief device. The outer surface of the luminaire that is easily accessible to humans should not be overheated. First, the main safety requirements and electromagnetic compatibility requirements of the internal wiring cross-sectional area of ​​the lamp and the cross-sectional area of ​​the external wiring should be no less than 0.5 square millimeter to 0.75 square millimeter.
The luminaire should be durable. Luminaires for fluorescent lamps should be used with ballasts that provide normal protection not only in normal conditions, but also in the event of aging and damage to the lamp. The outer casing, lampshade, and insulated lamp holder of incandescent lamps should not be burnt or deformed during the durability test.
Enough creepage distance and clearance.
The insulating material of the main safety components in the luminaire shall be heat and fire resistant.
The luminaire should have adequate protection against electric shock.
The luminaire should have a reasonable structural design and a complete processing technology.
The luminaire shall be fitted with a cord holder. The luminaire should have sufficient smoothness.
The electromagnetic disturbance of the luminaire shall be within the limits specified by the standard.
The harmonic current of the luminaire should be within the limits specified by the standard.
Second, how to choose portable table lamp
Table lamps are the most common type of portable general-purpose lamps. They are also essential lighting products on students' desks and teachers' desks. Product safety is particularly important because of the age of the people in use and the use of children. When purchasing, you should first consider the safety and quality of the luminaire, and then consider the performance and appearance factors.
1. Go to the regular store and buy regular goods. To formal invoices, do not buy products that are too cheap, buy products that have the "three guarantees" promise, and purchase lamps with 3C certification marks.
2. Advertising is for reference only. It is very important to check the inspection report. In particular, check whether the items such as protection against electric shock, durability test and combustion resistance are qualified in the inspection report.
3. You should look at it when you buy it. At first glance, whether the product identification is complete, the identification of regular products is often more standardized, at least the following contents should be identified: trademark and factory name, product model specifications, rated voltage, rated frequency, and rated power. Check whether the model number matches the model specification of the inspection report and safety certification certificate, and whether the electrical parameters are correctly identified; secondly, whether the lamp power cord has CCC safety certification mark, the external conductor cross-sectional area should be 0.75 mm 2 ; Whether the charged body is exposed or not, the finger should not touch the charged metal lamp head after the light source is installed in the lamp holder.
4. Select the table lamp with high protection against electric shock. According to the type of protection against electric shock, the table lamp can be divided into 0, I, II and III. Most of the products sold in the market belong to Class 0 or Class II. Class 0 lamps rely on basic insulation as protection against electric shock. In case of basic insulation failure, electric shock hazard is likely to occur. Class III luminaire protection against electric shock not only relies on basic insulation, but also has additional safety measures, such as double insulation or reinforced insulation. In case of basic insulation failure, it can also rely on supplementary insulation protection. Class II lamps marked with a Class II “back†symbol should be purchased as much as possible.
5. When choosing a lamp for a child, it should be avoided to purchase a metal case lamp with a high heat source such as an incandescent table lamp and a tungsten halogen table lamp. At the same time, you should pay attention to the smoothness of the luminaire at the time of purchase to avoid the overturning of the luminaire. The luminaire can be tilted 6 degrees to see if it has tipped over to determine the smoothness of the luminaire.
Third, the use of lighting instructions
After buying the lamp, don't be busy installing it. You should carefully look at the markings of the lamp and read the installation instructions. Install the lamp according to the instructions and use the lamp according to the rules of use in the manual.
According to the light source parameters provided by the sign, replace the aging lamp in time, and find that the two ends of the lamp are red. When the lamp does not illuminate, the lamp should be replaced in time to prevent the ballast from being burnt out and other unsafe phenomena.
When cleaning and maintenance, please pay attention not to change the structure of the luminaire, and do not replace the parts of the luminaire casually. After the cleaning and maintenance is finished, the luminaire should be installed as it is, and the parts of the luminaire should not be missed or misplaced.
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