Home lighting: how to choose and fixed dome light

Fixed dome light of the family, office, entertainment place, all sorts of places often choose the lamps and lanterns, such as when the choose and buy should first consider the safety quality of lamps and lanterns, and according to room size, height, the feature into consideration, the choose and buy.

1, in the big shops, have '3 packets' promise of products of choose and buy, the choose and buy to have the lamps and lanterns of CCC authentication marks.

2, when the choose and buy to three. A look at the product identification is complete, formal tend to be more standardized, the label of the product should identify the trademark and the name, product model specifications, rated voltage, rated frequency, rated power. 2 if the power cord of lamps and lanterns has CCC safety certification marks, external 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.

3, choose high protection against electric shock

according to the type of protection against electric shock, absorb dome light can be divided into 0 class, class I, Ⅱ classes and class Ⅲ. 0 class of lamps and lanterns of security is bad, should try to type I, Ⅱ and Ⅲ lamps and lanterns of choose and buy.

0 type lamps and lanterns is rely on basic insulation as a protection against electric shock, one thousand basic insulation failure, is prone to get an electric shock risk.

I class of lamps and lanterns is not only rely on basic insulation, protection against electric shock and may also include additional security measures, namely the accessible conductive parts connected to the protective grounding wires, make accessible conductive parts in the basic insulation failure is not charged type lamps and lanterns of earthing terminal and a grounding symbol, it should be noted that I kind of the metal shell of lamps and lanterns should be effective grounding, if in tubes that you can hit a ballast, ballast should be effectively grounded.

Ⅱ type lamps and lanterns is not only rely on basic insulation protection against electric shock, and has the additional security measures, such as double insulation or reinforced insulation, one thousand basic insulation failure, can also rely on the supplementary insulation protection. The lamps and lanterns of plastic shell is commonly 0 class or class II, best Ⅱ type lamps and lanterns of choose and buy, Ⅱ class lamps and lanterns has symbols.

Ⅲ lighting fixtures rely on the power for safety, low voltage protection against electric shock, and won't produce higher safety, low voltage inside the lamp voltage.

4, use the lamps and lanterns guidelines ( 1) Don't busy, buy back the lamps and lanterns and 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, should be timely replacement bulbs, prevent unsafe phenomenon such as ballast burn out.

　　( 3) , in the cleaning maintenance should be paid attention to, 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.

China lighting network Feng Yaoyuan

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