Urban road lighting design is more reasonable?

In order to make the urban road lighting system more scientific and reasonable, this paper discusses the design of urban road lighting from the aspects of the choice of the mode of cloth light, the choice of light source and lighting control.

1, reasonable arrangement and selection of lamps

There are four basic forms of arrangement and arrangement of the road lighting in the District, namely, one side cloth lamp, the central cloth lamp (including the central single lamp cloth lamp, the central symmetrical cloth lamp) staggered cloth lamp and the symmetrical cloth lamp and so on.

Commonly used on the main road on both sides of the cloth light. There are two ways to distribute light on both sides: one is symmetrical arrangement and the other is staggered arrangement. Two kinds of layout have advantages and disadvantages. The advantages of symmetrical layout is more beautiful, but the lack of illumination is not uniform enough for a wide road. Although it is not as good as symmetrical cloth, it is more uniform. Taking into account the residential area of road lighting in the premise of meeting the functional requirements, but also to pay attention to aesthetics, you can choose some of the beautiful appearance of the garden lights. The lamp is high in 3-4 meters, the power of a single light source is not too large, the lamp is not installed in the residential building near the window, to avoid the impact of residents rest. Small square, parking lot larger venues can choose Garden lights, also can choose to fly, butterfly ball, mushroom shaped high pole lamp, but the height and angle of the lamp light source to have certain limitations, to avoid light pollution.

2, voltage, step-down, dimming, energy saving

In the road lighting, the luminous flux of the light source is affected by the voltage, resulting in different road surface illuminance at different times. In the evening, the peak value of power consumption is low, the luminous flux of the light source is low, the illumination of the road surface is low, and the network load is low at midnight, the voltage of the power grid is high, the luminous flux emitted by the light source is high, and the illuminance of the road surface is high. The utility model has the advantages that the utility model has the advantages that the utility model has the advantages that the utility model not only wastes energy, but also increases the loss of the network, and reduces the service life of the electrical equipment including the lamp. Therefore, the intelligent light source voltage regulation dimming device is installed on the control end of the street lamp, and the utility model has the functions of stabilizing voltage, stabilizing the luminous flux of the light source and prolonging the service life of the lamp.

3, the choice of light source type

At present, the main types of light sources used in street lighting are: metal halide lamp, high pressure sodium lamp, and energy saving lamp (compact fluorescent lamp). The high-pressure sodium lamp has the advantages of high luminous efficiency, energy saving and moderate color temperature, and is widely used in street lamps. The width of more than 8m of the road, should consider the functional street lamp adopts light interception or half light type. In the choice of light source, we can give priority to the high efficiency of high-pressure sodium lamp, metal halide lamp, the average illuminance is generally controlled at 1-5LX.

The selection of energy-saving lamps and ordinary road branch (compact fluorescent lamp), average illuminance should be higher than the main road, the general control in the 0.5-3LX, so that the whole area of a rich sense of the level, while providing a soft environment for outdoor low rise housing. Layout of lighting a courtyard lamp and the amount of lawn lamp combined in the green residential area attractions, generally do not consider the use of floodlights to render the environment, because it is easy to cause light pollution to the surrounding residents.