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Tongliao City is located in the eastern part of Inner Mongolia Autonomous Region. It is located at the western end of Songliao Plain. It is dry and windy in spring, and has many dusty weather. The annual average wind speed is 3.5-4.5 m/s, and the maximum wind speed can reach 19.0-31.0 m/s. The number of gale days in the month accounts for 50-60% of the number of gale days in the year, and April is the month with the largest number of gale days in the year. Every year, due to the accident of wind reversal, the lamps are often caused by wind damage, and the phenomenon of wind accumulation is also an important cause of the serious attenuation of the brightness of the lamps. Therefore, when choosing a street light, we must not only consider its aesthetics and function, but also focus on the wind and dust protection functions of the lamps and poles. Only in this way can we ensure the safe use of street lamps in urban infrastructure. It brings convenience to people's travel and life production.
First, the dust of the street lamp
The dustproof and waterproof level of the lamp can be reasonably selected according to the air pollution degree, dust content, investment cost and maintenance conditions of the illuminated place. Another simple and feasible dustproof design of the lamp is to install a waterproof and breathable rubber strip at the contact between the lampshade and the lamp holder. Since the current lighting manufacturers are mostly in Jiangsu and Zhejiang provinces, in the design and manufacture of the lamps, due to local In the climatic conditions, it is generally not considered to install sealing strips, but in the north, due to the difference in climate, dustproof and waterproof strips must be used. Waterproof and breathable strips are materials that are breathable but not water permeable. Use natural rubber or recycled rubber to ensure years of use.
In addition, the ballasts, triggers, bulbs and other components used in the lamps will generate heat. Therefore, the choice of lampshades should give priority to tempered glass materials. In the past, most of the lamps used in acrylic or synthetic plastic materials will appear after several years of use. The phenomenon of aging of the lampshade causes the light transmittance of the lamp to be poor, thus affecting the brightness of the street lamp, and the dust existing inside. The dust cannot be cleaned after the high temperature, and the lampshade or the entire lamp needs to be replaced to meet the use requirement, which undoubtedly increases the maintenance cost.
A sealing rubber ring is added to the screw head to prevent dust from entering the lamp cover from the lamp cap, which is also an aspect of the lamp dustproof.
Second, the windproof of the street lamp
(1) Lamps
As an important part of the street lamp, the quality and opening method of the lamp is very important. The material must be aluminum casting alloy. The thickness should meet the requirements. The lamp body is not allowed to have cracks and holes. The joints of various parts must have good contact points. The buckle part is the most important thing. The previous lamps are unreasonable because of the buckle design, which causes a large number of lamps to be damaged after each strong wind. Therefore, it is necessary to use spring buckles on the lamps, preferably two are installed, and the lamps are turned on. The upper part is straight open, and important components such as ballasts are fixed on the lamp body to prevent the lamp cover from being damaged and the parts falling off causing a safety accident.
(two) light pole
The height of the pole must be selected according to the width and use of the road. The wall thickness should be more than 3.5mm, hot and cold galvanized inside and outside, the thickness of the galvanized layer is more than 35 μm, the thickness of the flange is above 18mm, and the flange and the pole are required. Weld the ribs to ensure the strength of the bottom of the pole. In the past, because the galvanization of the lamp post was unqualified, and the welding rib was not applied, the bottom of the lamp post was severely corroded, and the phenomenon that the lamp post was blown off by the wind sometimes occurred. Therefore, the wall thickness of the pole, the thickness of the galvanizing and whether or not the welding rib is added is an important indicator of whether the pole is qualified or not, otherwise it cannot be used.
(3) Foundation
The street lamp foundation is used as a concealed project for the street lamp project, and it is also an important part of the overall windproof and safe use of the street lamp. First of all, C20 concrete should be selected for pouring. The choice of anchor bolts depends on the height of the pole. 8m poles should be Φ20 bolts, length 1100mm, base depth 1200mm; 10m poles should be Φ22 bolts, length 1200mm, The base depth is 1300mm; the 12m pole should be Φ22 bolt, the length is 1300mm, the foundation depth is 1400mm; the lower part of the foundation is larger than the upper part, which is beneficial to the stability of the foundation and enhance the wind resistance.
In short, with the gradual improvement of the role of street lamps in urban roads, road lighting must not only meet the requirements of use and enhance the taste of the city, but also be safe, reliable and durable, providing people with a good travel and living environment, creating social benefits and saving. Maintenance costs.