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Is it necessary to disconnect the photovoltaic system during lightning weather?

   There are two main types of lightning hazards: direct lightning strikes and indirect lightning strikes.
Protection against direct lightning strikes: Setting up metal lightning conductors to the ground on tall buildings, including lightning rods, lightning strips, and grounding devices, can release the charge of huge thunderstorm clouds. All electrical equipment in the photovoltaic system cannot be protected from direct lightning strikes.
Lightning protection: The photovoltaic system has lightning protection modules in electrical equipment such as combiner boxes and inverters to protect against indirect lightning strikes. The inverter has secondary lightning protection and tertiary lightning protection. The secondary lightning protection adopts lightning protection module, which is generally used in medium and large photovoltaic power stations. There are no tall buildings around the power station. The third-level lightning protection adopts lightning protection devices. It is used for household small photovoltaic power station, and there are tall buildings around the power station.
Distributed photovoltaic power generation systems are equipped with lightning protection devices, and there is no need to disconnect them in normal lightning weather. If there is a strong thunderstorm, it is recommended to disconnect the DC switch of the inverter or combiner box, and cut off the circuit connection with the photovoltaic modules, so as to avoid the harm caused by the induction lightning.
The operation and maintenance personnel should usually check the lightning protection facilities to ensure the normal operation of the lightning terminal, down-conductor and grounding system, ensure that the short-circuit resistance value of the lightning protection grounding system is below 4 ohms, and regularly check the performance of the lightning protection module in the equipment. Prevent failures, so you can ensure that the equipment will not be damaged during a thunderstorm.

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