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With the general improvement of living standards, most rural areas are no longer associated with isolation and poverty. Everything is also developing towards modernization. In the past, at night, the countryside was shrouded in darkness except for the light coming from houses, making life very inconvenient. Nowadays, streetlights are quite common in rural areas, with solar streetlights being more popular than grid-powered ones. So, do you know how to protect rural solar streetlights from lightning strikes? Here, we will introduce you to this issue.
Any electronic device is susceptible to lightning strikes. There are many ways to try and prevent it, but according to the BS EN/IEC 62305 lightning protection standards, several key points must be considered.
A Lightning Protection Zone (LPZ) refers to an area where the equipment that needs protection should be placed, adapting to the electromagnetic characteristics and the withstand voltage or immunity of the equipment. Generally, the higher the number of zones, the lower the expected electromagnetic effects. LPZ3 is the highest level.
Lightning Protection Levels (LPL). The four protection levels are determined based on parameters obtained from previously published technical papers. There are two waveforms used for testing Surge Protective Devices (SPD): direct lightning strikes at 10/350μs and 8/20μs.
The voltage protection level or permissible voltage of the installed SPD must be coordinated with the insulation withstand voltage of the installed components and the interference withstand voltage of the electronic equipment. IEC 61312 explains the purpose and concepts of Surge Protective Devices (SPD). There are four coordinated variants.
Solutions:
Many rural solar streetlights must operate under extremely harsh weather conditions. These conditions make solar streetlights very susceptible to ESD (Electrostatic Discharge). Improper grounding, connections, or transient protection are the main reasons for lightning strike damage.
The above information on how to protect rural solar streetlights from lightning strikes is shared here. We hope this article is helpful to you. If you have any other questions regarding solar streetlights, feel free to follow our manufacturer or leave a message. We look forward to discussing with you!
