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Solar street light design plan and component selection standards

by:CHZ Lighting     2021-07-29
As the most widely used light source for road lighting, solar street lights have achieved good applications in road lighting projects. However, with people’s strict requirements on the quality of solar street lights, only good design schemes and material selection standards can achieve high-efficiency and energy-saving road lighting.

Design requirements for solar street lights:
1. According to the requirements of the national standard, the solar street lamp design should adopt 36 or 72 monocrystalline silicon solar cells connected in series to form a 12V or 24V module design;
2. The output power of the solar cell group should be more than 3 to 5 times the power of the light source: (3 to 4) times or more in areas with abundant light when the light is turned on, and vice versa (4 to 5) times or more to ensure the stability of the system jobs;
3. The output power of the same solar cell is different at different times and different locations. The power design of solar street lights is based on the reasonable configuration of the solar light conditions around noon on a sunny day.
Component selection of solar street light:
Solar street lamp lighting commonly used solar panels are mainly monocrystalline silicon and polycrystalline silicon. When selecting solar panels, the anti-reflection film of solar panels should be silicon nitride film enhanced by plasma chemical vapor deposition. The unit area of u200bu200bsolar panels The output power is about 127Wp/m2, and the average conversion efficiency is >17%; in order to ensure the normal charging of the battery, the working voltage of the solar cell is about 1.5 times of the battery voltage. Generally, the 12V battery needs to be charged with 15-18V solar cells and 24V batteries. Requires 33~36V solar cells.
The above is the installation design plan made by Changhui Lighting for the road lighting project of solar street lamps. For the quality of solar street lamps, solar street lamp manufacturers must do a good job in street lamp design to achieve good road construction.


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