Solar street lights face many challenges in extreme climate conditions, and their reliability becomes a key consideration.
In extremely cold climates, low temperatures can affect the performance of batteries, resulting in reduced capacity, lower charging efficiency, and even solidification of the electrolyte. Countermeasures include selecting batteries suitable for low-temperature environments, such as gel batteries, which have good cold resistance; and equipping batteries with insulation devices, such as incubators or wrapping them with insulation materials to reduce heat loss and ensure that they can still work normally at low temperatures.
Hot environments also have an adverse effect on solar street lights. High temperatures may reduce the efficiency of photovoltaic panels, accelerate component aging, and affect the stability of electronic components such as controllers. To this end, photovoltaic panel mounting brackets with good heat dissipation performance can be used to increase the contact area with the air to facilitate heat dissipation; for components such as controllers, heat sinks or small fans can be installed for active heat dissipation to ensure that they can continue to operate reliably at high temperatures.
In areas with strong winds, the stability of street lights is crucial. The light pole needs to have sufficient strength and wind resistance design. Thickened and thick-walled high-quality steel can be used to make the light pole, and deep-buried foundation installation can be used to increase the connection firmness between the light pole and the ground; at the same time, optimize the appearance design of the street lamp to reduce wind resistance, such as using a streamlined lamp head design to reduce the force of wind on the street lamp and improve its reliability in strong winds.
Heavy rain and humid environment are prone to cause circuit short circuits, corrosion and other problems. The circuit part of solar street lights should be waterproof and sealed, and waterproof joints and sealants should be used to ensure that no water enters the line connection; the surface of the light pole and components should be treated with anti-corrosion, such as galvanizing and painting, to prevent rain erosion and rust damage, and ensure the long-term use of street lamps in humid environments.
In areas with frequent sandstorms, sand and dust may cover the surface of photovoltaic panels and reduce their lighting efficiency. Regular cleaning and maintenance of photovoltaic panels is the key. Automatic cleaning devices can be installed, such as using rainwater flushing or timed water spraying to clean the photovoltaic panels in time to ensure their normal photoelectric conversion efficiency.
In areas prone to lightning, street lights are easily damaged by lightning. It is necessary to install effective lightning protection devices, such as lightning rods and lightning strips, to guide lightning into the earth. At the same time, do a good job of grounding to reduce grounding resistance and ensure the safety of street lights in lightning weather.
Through targeted response measures for different extreme climatic conditions, the reliability of solar street lights in harsh environments can be greatly improved, so that they can operate stably in various climatic conditions and continue to play a lighting function.
