Mounting surface of lamps and lanterns and building close to the ceiling lamps and lanterns is commonly known as to absorb dome light, dome light is used to provide indoor environment illumination. Indoor lamps and lanterns can use the light source are ordinary incandescent bulbs, fluorescent lamp, high intensity gas discharge lamp, halogen tungsten lamp, etc. With applicable light dome light different place is different, use the fluorescent lamp and incandescent lamp dome light is mainly used in household, classroom and office space such as the height is about 3 m place lighting, power and light volume larger high intensity gas discharge lamp is mainly used for sports venues, such as shopping malls and workshop floors in 4 to 9 meters high places lighting.
in order to make enough energy saving at the same time in the face of the brightness, home, school, shops and offices of choice for lighting products is fluorescent absorb dome light. By use of fluorescent absorb dome light should satisfy the basic safety requirements.
main safety and electromagnetic compatibility requirements of lamps and lanterns
1, lamps and lanterns of the internal connection area/external sectional area should be greater than zero. 5 mm2/0。 75mm2。
2, lamps and lanterns should be durable in use. Using fluorescent lamps and lanterns, should choose not only works in normal state, and in the case of a lamp aging, damage can provide exception to protect the ballast. Incandescent light bulb lamps shell, lampshade, insulation cap should not burning, not deformation when durability test.
3, enough creepage distance and clearance.
4, lamps and lanterns of the main insulation material shall be heat resistant, fireproof safety components.
5, lamps and lanterns should have sufficient protection against electric shock.
6, lamps and lanterns should have reasonable structure design and complete machining process.
7, the electromagnetic disturbance of lamps and lanterns should be within the limits prescribed by the standard.
8, the harmonic current of lamps and lanterns should be within the limits prescribed by the standard.
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how to choose to absorb dome light absorb dome light of the family, office, conference room and other places often choose the lamps and lanterns, when the choose and buy should first consider the safety quality of lamps and lanterns, and then from the aspects of room size, height, function considering the choose and buy.
1, into the formal shop, buy a regular goods, to the formal invoice, don't buy too cheap price product, have '3 packets' promise of choose and buy products.
2, advertising is for reference only, refer to inspection report is very important, especially should consult the test report of protection against electric shock, durability test, burning resistance and other project is qualified.
3, when the choose and buy should be three to see. A look at the product identification is complete, formal tend to be more standardized, the label of the product should be identified at least the following trademark or name, product model specifications, rated voltage, rated frequency, rated power. Check whether the product model and test report and safety certification model specifications, electrical parameter is correct. 2 see lamps and lanterns is the power cord, wire cross-sectional area should be 0 or higher. 75mm2。 Three see if charged body of lamps and lanterns, light source into the lamp holder, finger should not touch the charged metal lamp holder.
use information
1, buy back the lamps and lanterns of lamps and lanterns, don't busy installation, should read the installation instructions carefully look at the mark of lamps and lanterns and, pursuant to the provisions of the manual install lamps and lanterns, according to the instruction of using rules used lamps and lanterns.
2, according to the sign to provide light source parameters in a timely manner to replace aging tubes, found that is red on both ends of the tube, tube to jump not bright, should be timely replacement bulbs, prevent unsafe phenomenon such as ballast burn out.
3, should be paid attention to when cleaning maintenance, don't change the structure of the lamps and lanterns, also don't replace the parts of lamps and lanterns, at the end of the cleaning maintenance, should install lamps and lanterns is good according to the sample, don't packing, wrong parts of lamps and lanterns.
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