The choices of factory lighting plague many people, then which kind of plant and height and area of the plant and lighting is the most reasonable in the end? The lighting expert will tell you: how to choose and design the preferable factory lighting?

1 choice for the lighting way

(1) For the illumination requirements that is higher and the working position which is not of high density, the mixed lighting should be adopted a place where it is unreasonable to separately adopt the general lighting

(2) less demanding on the illuminance, when subjected to the technical conditions of production constraints, which is not suitable for installation of local lighting, or unreasonable use of mixed lighting, general lighting should be used alone.

(3) the partitioned general lighting can be adopted in work area where the lighting illuminance needed is more than the general.

(4) When the district illumination can not meet requirements for general illumination ,the local lighting should be added.

(5) the partial lighting shouldn’t only be installed in the work area.

2. illumination standards

The illuminance values of the factory lighting design should be based on the national standard GB 50034 – 2004 “architectural lighting design standards” requirement to select. This standard specifies the illuminance values of the general lighting of 16 Congress of industrial building. More specific illumination standards of all kinds of factories workplace shall also be relevant industry regulations.

3. Lighting quality

Lighting quality is the flag that measure the quality of factory lighting design. It mainly includes the following:

(1) select the lamps whose efficiency is high and the light distribution curve fit. According to the rate of Index feet of the height of hanging lamps in the plant room shelf is to select the different light fixtures.

When RI = 0.5 ~ 0.8, should use narrow light fixtures;

When RI = 0.8 ~ 1.65, the appropriate selection is light fixtures;

When RI = 1.65 ~ 5, should use width light fixtures.

(2) select the appropriate color temperature and the lighting source whose color rendering index meet the production requirements.

(3) achieve the required uniformity of illumination: general lighting illumination uniformity of the operating area should not be less than 0.7,illumination uniformity of adjacent to the surrounding of the operating area shall not less than 0.5.

(4) meet the quality requirements of the directly lighting glare limited: the unified glare rating (UGR) according to the requirements of GB 50034-2004,which is that the generally allowed rate is 22, fine processing rate is 19.

(5) take measures to reduce the voltage fluctuations, prevent the lighting effects of voltage flicker and stroboscopic effect.

(6) lighting device shall be operating within the allowable voltage, the compensation capacitor should be used to improve the power factor where the metal halide lamps and high pressure sodium is used.

4 Industrial lighting options

How to choose the light should be based on the characteristics and requirements of production process. The LED tube light and LED high bay light should be adopted in the office and in the workshop,the metal halide lamps can be used where the height of plant is higher (6m above), the high pressure sodium lamps should be used where there is no requirements on color index.

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Oznake: LED tube light, high pressure sodium lamps, architectural lighting design, unified glare rating, metal halide lamps, LED flood light, light source, RI