In the face of typhoons, rainstorms and other bad weather, how to prevent the widely used photovoltaic power generation , in order to reduce the disaster losses of photovoltaic power plants and ensure the safety of people's property? The installation of
PV power station components occupies a large area, especially the installation of distributed components is high, and the screws of brackets and components are loose in long-term shaking, so the requirements for the installation stability of components are high. Preventing components from overturning and equipment from collapsing is the key work of typhoon prevention.
Generally, typhoons are accompanied by rainstorms, and the prevention of flooding and flooding of equipment is also the key work of typhoon prevention. Including drainage system inspection, cable trench and equipment foundation soaking, etc. Typhoon
prevention is mainly divided into four stages: preparation stage, early warning stage, response stage and post-disposal stage, as follows:
I. Preparation stage:
The operation and maintenance personnel shall strengthen the investigation of potential safety hazards of equipment in their daily work, timely manage the potential safety hazards of the power station, and ensure the stable and reliable operation of the photovoltaic power station equipment.
Establish a safety emergency committee to clarify and implement responsibilities for natural disasters such as typhoons and various emergencies, and to carry out unified management of various emergencies in photovoltaic power plants.
To formulate special contingency plan for typhoon prevention, carry out safety provention and control training for typhoon prevention, and carry out emergency drills for typhoon prevention before typhoon arrival, so that each operation and maintenance personnel is familiar with typhoon hazards and response measures when typhoon comes.
The photovoltaic power station shall prepare emergency supplies: sandbags, water pumps, tarpaulins, wires, flashlights, raincoats, rain boots, flood prevention sandbags, food, drinking water and emergency medicines.
2. Early warning stage:
In the typhoon season, pay attention to the "real-time typhoon path" through the WeChat, pay attention to meteorological news and other channels to receive weather information. According to the weather information, the typhoon warning notice was issued in time, and the power station started the anti-typhoon contingency plan.
3. Response stage:
1. Pre-disaster action prevention:
raise awareness of prevention, do a good job of leakage inspection in the control room and high-pressure room, ensure that the drainage facilities in the station and on the roof are unblocked, and the equipment cabin doors are closed.
Carry out special inspection of typhoon prevention in the whole station, carry out comprehensive inspection and fastening of components and brackets in the photovoltaic area, carry out inspection and binding and fixing of DC cables in the photovoltaic area to prevent large sag swing of DC cables, carry out inspection and fastening of cable bridge cover plates, and check the waterproof rubber strips of junction boxes and box transformers to ensure that the doors are closed and locked.
Ensure that the doors and windows of the house are in good condition, the walls and roofs are not leaking, and the walls are not in danger of collapse. The flood drainage ditches inside and outside the station shall be unblocked, and the cable trench leading to the indoor shall be blocked reliably without the possibility of flood backflow. The fire partition of the outdoor cable trench shall be opened in the flood season to ensure the drainage of the accumulated water in the trench. All outdoor equipment mechanism boxes and secondary terminal boxes shall be closed tightly, and sufficient emergency flood control measures such as water blocking sandbags shall be prepared. The primary equipment, secondary equipment and DC equipment of the
photovoltaic power station shall be inspected in a targeted manner, so as to find and deal with hidden dangers before the arrival of the flood season and ensure that the accident lighting of the photovoltaic power station is in good condition.
2. On-duty response during the disaster:
arrange personnel to be on duty for the power station when the typhoon comes, and take necessary measures according to the situation during the typhoon. In order to ensure their own safety, watchmen can monitor the situation of the power station in combination with the video monitoring system of the power station.
Keep normal communication with external telephone, fax and network, strengthen the tracking of weather forecast and typhoon path, strengthen the monitoring of weather conditions of photovoltaic power station, and timely report sudden changes and abnormal conditions of weather. Check the cable trench, equipment foundation and other low-lying areas
according to the rainfall conditions, observe the water level rise, and assign personnel to be on duty and keep in touch with the person in charge of emergency response. In case of water accumulation in local equipment, drainage work shall be carried out in time.
When the emergency disaster situation escalates, the group leader of the emergency group shall judge the disaster situation according to the relevant information and alarm, and formulate the personnel evacuation and evacuation plan in advance. When the emergency may affect the safety of the staff, the group leader shall report to the person in charge of the emergency in time, notify the evacuation and evacuation of the relevant personnel, and count the personnel in time. During the start-up of the
contingency plan scheme, no one in the photovoltaic power plant can act privately to prevent greater risks.
3. Post-disaster inspection and emergency repair:
When the climate and environmental conditions meet the safety requirements (the wind speed drops below level 6, there is no rainstorm, the visibility is good, and the indoor equipment inspection is based on the principle of ensuring safety), timely inspect the damage of equipment and facilities on site, and implement the emergency repair work.
Check the cable trench, equipment foundation and other low places where water is easy to accumulate, and eliminate the hidden danger of water accumulation.
Do a good job of personal safety, prevent secondary disasters, implement personal protective measures and guardianship system when going out to work, pay attention to environmental safety factors, and strictly prohibit unauthorized operation. Carry out a comprehensive inspection of the photovoltaic power station in a
timely manner, investigate equipment failures and potential safety hazards, coordinate property claims for damaged equipment, and repair and eliminate damaged equipment and facilities. For the common problems caused by the inconsistency between the design and the actual situation or the change of the surrounding environment in the
technical transformation
and restoration work, the technical transformation plan should be formulated and implemented after approval. After
summarizing and evaluating
the emergency repair and resumption of production, the post-emergency evaluation work, including emergency prevention, emergency support, early warning and response, recovery and reconstruction, is summarized in an all-round way, and the rectification plan is formulated and implemented, and a report is formed. The relevant member departments shall supervise and urge the completion of the closed-loop implementation of the rectification measures according to the evaluation results.
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