Considering that street lamps are conductors, one way is major Cast light Combination of external lightning protection and internal lightning protection. As the material of street lamp is conductor, it is equivalent to lightning rod, and downlead and grounding grid need to be installed in the design. These systems constitute the external lightning protection system. After the completion of the external lightning protection system, the fire and personal safety accidents caused by the direct lightning stroke of the street lamp can be avoided. After the completion of external lightning protection, the internal lightning protection system can protect the equipment by grounding and setting voltage protection. major Cast light The internal lightning protection system is ready to prevent induced lightning and other forms of overvoltage intrusion, which may damage the power supply. This is also beyond the protection of external lightning protection system. Therefore, the built-in internal protection and external protection can complement each other.

There are many types of LED street lights, which can be classified according to the following categories. 1 major Cast light Height of street lights: high pole street lights, medium pole lights, street lights, garden lights, lawn lights; 2, according to major Cast light Material of lamp pole: hot-dip galvanized railway lamp, steel street lamp and stainless steel street lamp; 3. Divided by shape: Chinese lamp, antique lamp, landscape lamp, single arm street lamp, double arm street lamp. 4. According to the power supply mode: urban circuit light, solar street light, wind solar complementary street light.

Reason 1: The cost of installing street lights on expressways is very high, and the installation distance of street lights is generally 30 meters to 40 meters. If the 50 meter street light is regarded as hundreds of kilometers on any expressway in China, the street light will be installed. major Cast light The cost is very high. The second reason is that the expressway has a high safety factor. The expressway is a closed road connecting the city and the city. In the absence of pedestrians and non motorized vehicles, urban street lights are designed for the safety and convenience of non motorized vehicles and pedestrians. Third, automobile headlights and road reflective signs are sufficient to meet the lighting needs. Sichuan major Cast light Discontinuous and uneven. For drivers of high-speed vehicles, this kind of light dark alternation will cause visual illusion, which is very dangerous.

If there is a problem with the solar street lamp in the countryside, first check whether the photocell is correctly connected, whether the wiring position is in poor contact, and then check whether the battery connection is correct and whether the battery voltage is normal. If the battery is excessively discharged, a fault will occur and it will automatically recover after being fully charged. Among them, major Cast light The stability of the controller is very important for the service life of rural solar street lights, because the role of the solar controller is to control the use major Cast light The battery board charges and discharges the battery. When choosing a solar cell, you must choose a high stability battery to ensure the service life of the battery, because the quality of the battery will also directly affect the service life of the street lamp. It can extend the service life of the whole rural solar street lamp.

1. Compared with traditional lamps, LED lighting has obvious energy-saving advantages. Just use major Cast light The initial investment to replace traditional lamps has increased, but cost recovery can be achieved by saving electricity charges in a relatively short time. The earlier you replace it, the more you can enjoy the benefits of energy conservation. 2. The energy-saving performance of LED lighting is the choice to replace the traditional mining lamp. In the context of global energy contraction and the national conditions of governments at all levels to vigorously promote energy conservation and environmental protection, replacing traditional lamps will become major Cast light The general trend of. There is a lot to do.

(1) There are potential safety hazards in municipal lighting: due to the construction quality, garden engineering transformation, aging materials, abnormal power supply, water and electricity pipeline conflict, many potential safety hazards have been brought. (2) Solar street lamps are energy-saving and environment-friendly new energy power generation products. There is no electricity bill. High electricity charge for mains lighting: major Cast light Our jobs have fixed and high electricity bills. Solar lighting is free of electricity charge: solar road lighting is a one-time investment without any maintenance costs, the investment cost can be recovered within three years, and has long-term benefits. （3） major Cast light The installation of the solar street lamp is very simple: when installing the solar street lamp, you don't need to lay complex lines, just make a cement base and fix it with stainless steel screws. The installation of municipal lighting fixtures is very complicated: there are complex operating procedures in the municipal lighting project.