Street lamp industry knowledge: what are the types of street lamps
1. Types of road lighting fixtures
1. According to the height of street lights: high pole street lights, middle pole lights, road lights, garden lights, lawn lights;
2. According to the material of the street lamp pole: hot-dip galvanized iron street lamp, hot-dip galvanized steel street lamp and stainless steel street lamp;
3. According to the street light source: sodium lamp street lamp, LED street lamp, energy-saving street lamp, new Somin xenon street lamp.
4. According to the shape: Chinese lamps, antique lamps, landscape lamps, single-arm street lamps, and double-arm street lamps.
5. According to the power supply mode: city circuit lights and solar street lights, wind-solar hybrid street lights
Street lights involve lighting technology and are suitable for street lights. The purpose is to design a high-efficiency electronic energy-saving street lamp with long life, low power consumption, high power factor and small current harmonic content.
2. Types of road lighting fixtures
Street lights are usually classified according to the shape of the light they emit. For the specific division method, the International Committee on Illumination (CIE) recommends that it be carried out according to the three contents of projection, expansion and control.
① Projection. Indicates the degree of diffusion of the light emitted by the lamp along the longitudinal direction of the road, and is divided into three types: short, medium and long.
②Extended. Indicates the degree of diffusion of the light emitted by the lamp in the lateral direction of the road, and is divided into three types: narrow, general and wide.
③Control. Indicates the degree to which the lamp controls glare, and is divided into three types: limited, moderate, and strict.
The installation methods of street lamps include bracket type, high-rise type, straight rod type, suspension cable type and suction wall type.
Third, what is the use of street lights?
The best high-pressure sodium lamp for street lighting is D metal halide lamp.
From the professional point of view of lighting, incandescent lamps have the best color rendering, but low luminous flux and poor luminous efficiency. Their luminous principle is thermal radiation luminescence; mercury vapor lamps, like common fluorescent lamps, are called fluorescent lamps and have the same luminous principle. It relies on gas ionization to excite phosphors to emit light. Its color rendering is low, but its luminous flux and luminous efficiency are much better than incandescent lamps; neon lights have almost no other benefits except for their good looks, and the illumination they can provide is extremely low. Lighting lamps; metal halide lamps perform very well in all aspects, especially their power can be very large and their lifespan is longer than other lamps.
Fourth, the difference between street lights and landscape lights
1. Different heights
The conventional height of street lights is 6-12 meters, and there are also some street lights with a conventional height of 6-20 meters. However, the general height of landscape lights is 3-6 meters. This is because landscape lights are ornamental and do not need to be made too high. The higher it is, the more materials are needed, and the more expensive the cost is.
2. Different lighting power
The lighting power of street lamps is generally relatively large, in the range of 250-400W, and it should be considered according to the width of the road, the surrounding trees, the height of the light pole and whether it affects the surrounding residents.
The lighting power of landscape lights is relatively small, generally 80-150W, and it may be smaller. This is because the landscape light has a basic lighting function. Its biggest function is to be more ornamental. Its light source power can reflect the overall shape of the lamp, and it does not need to be too bright.
3. Different application places
Street lights are generally used in urban or rural main roads, secondary roads, city squares, communities and other places, and the lighting needs are generally larger.
Landscape lights are generally installed in independent areas, such as parks, gardens, high-end communities, commercial pedestrian streets and leisure squares. Landscape lights will also appear in many tourist attractions.
4. Different functions
The main function of road lights is lighting, which should be able to provide better lighting brightness for pedestrians and vehicles. However, landscape lights only need basic lighting. The most important thing is ornamental, which is used to decorate the surrounding environment and create an atmosphere.
The shapes of street lamps are not so diverse, generally only a few. However, there are many shapes of landscape lights, which are very random and unconstrained. It can be customized according to the surrounding environment and special reasons.
