PART 1. Check the structure of the power station, balance weights, and install windproof tie rods

Before the typhoon passes, we need to conduct a comprehensive and detailed inspection of the installation situation, especially the installation structure, of the photovoltaic power plant in a timely manner, including whether the screw fasteners and fasteners are securely fastened, whether there is any detachment at the welding points, and whether the compression blocks in and around the components are securely stored.

For photovoltaic power plants installed using hooks and fixtures, it is necessary to check whether the hooks and fixtures are securely installed and fixed in a timely manner.

Check if the balance weight of the power station meets the requirements. If the balance weight of the power station is insufficient, use sandbags or other tools to increase the balance weight of the power station.

Of course, the weight design needs to be calculated and configured based on the load-bearing capacity of the roof. For power plants that are unable to increase or have limited counterweights, other measures can be taken to increase the fixing force, such as binding component supports with wire ropes and fixing building structural rivets.

Install windproof pull rods and tighten them to prevent the photovoltaic bracket from twisting in the wind. The ground power station should compact the ground anchors on both sides of the array.

PART 2. Check the power station drainage system, electrical equipment, and clean foreign objects

For large ground photovoltaic power plants, it is necessary to promptly check whether the drainage channels of the photovoltaic system are unobstructed.

If there are blockages, they should be promptly cleared to prevent regional water accumulation in the power plant. Pay attention to the weather forecast in real time, prepare the drainage emergency plan in advance, and add temporary drainage facilities before the rainstorm.

Check the status and insulation sealing of various electrical equipment in the photovoltaic power station. If the sealing status is poor, it must be dealt with in a timely manner. At the same time, key electrical nodes such as DC and AC wiring must be investigated. If there are sealing and wiring problems, they need to be dealt with immediately.

For photovoltaic power plants with low-lying terrain and prone to water accumulation, consideration can be given to removing the grid connected inverter from the site or relocating it to a higher location.

For household and commercial power plants with inverters installed on the roof, it is necessary to check whether the inverter bracket is secure and fixed reliably.

It is also recommended to close the DC switch of inverter and the circuit breaker of the combiner box of AC distribution box before typhoon and rainstorm weather. And reopen it after inclement weather.

In addition, it is necessary to check whether the lightning protection grounding of the system is reliable to prevent the impact of lightning strike on the system in rainstorm days.

There are some foreign matters near the power station, such as satellite antenna, water heater, etc., which are sometimes placed on the roof of the household power station.

The billboards and exterior wall signboards near the industrial and commercial power stations should be timely treated or reinforced to prevent the photovoltaic facilities from being damaged by dumping or thunder caused by rainstorm.

PART 3. Verify the power plant insurance policy

Natural disasters are unpredictable, and the impact of disasters is also difficult to estimate. Therefore, purchasing photovoltaic insurance in advance to share risks can provide compensation and reduce losses in case of unexpected disasters. Suitable photovoltaic insurance options include:

Property insurance:

（1） Natural disasters: lightning strike, rainstorm, flood, storm, tornado, hail, typhoon, hurricane, blizzard, ice slush, sand storm, sudden landslide, collapse, debris flow, sudden subsidence of the ground, falling of flying objects and other aerial objects, and other natural phenomena with irresistible destructive force;

（2） Accident: refers to unexpected and unexpected events that the insured cannot control and cause material damage, such as fires and explosions;

（3） After the occurrence of an insurance accident, the insurer shall also be responsible for compensating the necessary and reasonable expenses paid by the insured to prevent or reduce the loss of the insured subject matter in accordance with the provisions of this contract.

Three liability insurance:

（1） During the insurance period, if the subject matter of the insurance collapses, falls off, or falls due to natural disasters, accidents, or the insured’s general negligence, resulting in personal injury or property damage to a third party, the insurer shall be responsible for compensating the economic compensation liability that should be borne by the insured in accordance with the provisions of this additional insurance contract.

（2） After the occurrence of an insurance accident, if the insured is sued for arbitration or litigation due to the insurance accident, the insurer shall also be responsible for compensation in accordance with the provisions of this additional insurance contract, corresponding to the arbitration or litigation fees paid by the insured and other necessary and reasonable expenses paid with the prior written consent of the insurer.

PART 4. Summary of this article

Finally, we remind everyone that after a storm, there is a risk of electric shock when approaching or coming into contact with the connection between photovoltaic inverters, solar panels, and power cables.

Solar panels damaged by floods may have poor insulation and other faults, and there is a risk of electric shock when in contact. We must avoid barehanded contact or take anti electric shock measures (such as using rubber gloves and boots) to reduce the risk of electric shock and ensure personal and property safety.