At present, in home renovations, water pipes, wires, telephone lines, cable TV lines, etc. are generally not buried under the floor, they are buried in walls, covered with cement, and then surface decoration. This totally closed way has brought great obstacles to the maintenance of pipelines in the future. First of all, it is required to retain the complete drawing of the pipeline, otherwise it is impossible to start. Secondly, repair and replacement must completely destroy the surface decoration, which not only takes time and effort but also causes waste of materials. If the floor or wall is covered with special materials, such as marble, precious wood, etc., it is almost impossible to reconfigure the same.
How to change the laying method of this pipeline now, experts recommend the following methods:
1. The pipeline is grooved and walked along the foot of the wall. After laying and rowing, it is not closed with cement. It is nailed directly to the skirting board. In the future maintenance, it is sufficient to tear the skirting board. At present, the pvc baseboard on the market is generally less than ten yuan per meter, and the loss is not great. In this way, because pipelines have to go at right angles, waste of pipeline materials is more cost-effective than knocking out expensive floors and marbles in the future.
2. If you are decorating a villa or an old apartment house, you may wish to keep the traditional mirror line. The pipeline is buried under the mirror line and maintenance is more convenient.
3. As far as possible, the kitchen and toilet pipes are to be walked in the ceiling, and the vertical pipes are best closed with a removable moisture-proof plate or a stainless steel cabinet.
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3.2 Standard type: usually used as indicator light, with half value angle of 20 °~45 °;
3.3 Scattering type: This is an indicator light with a large angle of view. The half-value angle is 45 °~90 ° or more, and the amount of scattering agent is large.
4. Classification according to the structure of LED
4.1 According to the structure of LED, it is divided into full epoxy encapsulation,
4.2 Metal base epoxy encapsulation
4.3 Ceramic base epoxy packaging and glass packaging.
5. Classification by luminous intensity and working current:
5.1 LED with ordinary brightness (luminous intensity 100mcd) is divided according to luminous intensity and working current;
5.2 The luminous intensity between 10 and 100 mcd is called high brightness LED.
5.3 The working current of general LED is between 10 mA and 10 mA, while the working current of low current LED is below 2 mA (the brightness is the same as that of ordinary LED).
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