How to strengthen rural power grid safety management

1 Problems and obstacles in rural power grid management

1.1 Serious aging problem of wires

Due to the long service life of rural power grids, wires are aging. In addition, the rural population does not receive much education on electricity safety, and household wires and lines are replaced less frequently, with some villagers even using them for more than ten years. Although the wires are protected by rubber during use, they will inevitably be affected by friction. And under the influence of wind, the wires may be exposed. When the internal metal wires are exposed, there is a great safety hazard. Whether it is touched by humans, animals or rainwater, there may be electrical hazards. Furthermore, the protective layer of the wires will also age. Some wires are not set to standard lengths when erecting them. The excess parts are usually rolled into electric coils and hung on telephone poles. Multiple wires are hung at the same time, causing a "spider web"-like situation in rural areas. Commonly seen in the area. In addition, this situation may also cause wires to drag on the ground, which can easily cause electric shocks to children and livestock. Therefore, power grid managers should pay attention to publicity to villagers, increase the frequency of wire replacement, and promptly repair mopping and exposed wires to ensure safety.

1.2 Line erection is more arbitrary

Rural areas are less standardized than urban areas and do not have many rigid regulations in planning, so line erection may not be easy. The laying of wires was started without a perfect wire routing route, resulting in a chaotic layout. Unclear wire layout is not only cumbersome in actual installation operations, but also difficult to replace and repair in the future.

In addition, due to imperfect management systems, some wire routes may include tree branches, wall holes, etc., seriously affecting the safety of the power grid. Children in rural areas like to climb trees. The wires erected on the branches are a huge safety hazard. Once the metal wires are exposed due to the friction of the tree bark, it is extremely dangerous on rainy days. The main problem with wires passing through wall holes is the lack of protection. Surveys have found that it is not uncommon for wires to pass through wall holes in rural areas, and most of the areas around wall holes lack protective facilities. Electric shocks are prone to occur when no other isolation insulation is installed. , leakage situation.

1.3 The awareness of electricity safety is not strong

The village committee or township government should conduct unified publicity and education on electricity safety awareness to ensure that villagers have basic self-protection when they come into contact with wires on a daily basis. Skill. However, there are still serious problems in terms of villagers' current awareness of electricity use. For example, when villagers pump water, they directly drag the wires from one field to another by hand. In addition, villagers may only set up a tree stump in the field to install the electric switch knife for convenience. However, the electric switch knife is not only installed for a short period of time, and may cause pedestrians to trip or get electric shock at night.

2 Management and inspection points for rural power grids

2.1 Key points for power grid management security control

2.1.1 Management of protection equipment

Power grid management protection equipment is the guarantee for the effective implementation of emergency plans after safety problems occur. Protection equipment needs to be clearly distinguished according to unit differences to ensure that information such as numbers and identification plates can be fully and effectively displayed in the display area. It should be noted that the signal switch and terminal block need to have two numbers. In addition to the double number, the relay should also have the outlet marked. The purpose of this detailed labeling method is that the signboard can still be inspected during operation without the need for power outage.

2.1.2 Management of pressure plate equipment

Prepare pressure plate diagrams or pressure plate switching tables to ensure that the pressure plates are checked and recorded during each shift. The recording work will be inspected regularly and irregularly by the webmaster. Unsatisfactory work and laziness must be severely criticized and punished materially to reduce the chance of unqualified verification. The switching and cutting of the pressure plate not only needs to be recorded, but also should be written on the operation ticket. During operation, if there is a situation where it is necessary to exit and then put in again due to abnormal conditions or protection verification, attention should be paid to measuring the voltage value at both ends of the pressure plate to avoid accidentally moving the pressure plate during input.

2.1.3 Protection of branch insurance

Energy storage components and direct currents should be checked regularly to see if there are any abnormalities in their working conditions. For abnormal components or currents Maintenance should be done to ensure that no leakage occurs. All insurances should appear in the form of double numbers, and the rating table and number should be checked to check the DC voltage operating status after insurance.

2.2 Key points of power grid inspection safety control

2.2.1 Trip inspection

When a circuit trip occurs, attention should be paid to disseminating relevant knowledge to villagers and how to move the power grid. Moving the gate switch and checking the cause of tripping are the focus of education. Generally speaking, when a trip occurs, villagers will usually check the circuit breaker and try to solve it by themselves. In fact, in addition to checking the circuit breaker, they should also check whether the outlet relay contacts, signal relays and insurance are in good condition, and check the protection actions. Show signal. If necessary, check whether the auxiliary contact is cut off.

2.2.2 Power outage inspection

In the power outage state, in addition to checking the circuit breaker management items, the position light should also be checked to ensure that it is in a green state. There will be a delay in the instantaneous action of the signal during a normal power outage.

2.2.3 Power transmission inspection

Power transmission inspection is an inspection item implemented when delivering power to villagers after a power outage or tripping. It is necessary to check ammeters, circuit breakers, position lights, etc. . Specifically, the ammeter should be able to detect current and the pointer should have an indication; the circuit breaker should be in a closed state; the position light should change from green to red. At the same time, the normal power supply signal will be reset with delay.

3 Optimization strategies for rural power grid management

3.1 Increase publicity and enhance safety awareness

Power grid management in rural areas should be based on "prevention first, safety first" First" is the principle to ensure the safety of electricity. Safety publicity in electricity use needs to closely grasp the characteristics of rural areas (including terrain characteristics, housing characteristics, population characteristics, etc.), and strengthen publicity focusing on the two factors of "villagers" and "equipment".

In terms of publicity methods, the characteristics of houses in rural areas can be used to post promotional slogans on the walls. If conditions permit, cultural and recreational activities can also be carried out to incorporate electricity safety knowledge. The purpose of publicity and education is to let villagers understand the common sense of electricity use and avoid electric shocks in life due to their own improper behavior. For example, when you find that someone else has been electrocuted, you should not pull directly with your hands, but should use a wooden stick; or reduce the phenomenon of wires passing through randomly, etc. At the same time, we will strengthen the publicity of electricity regulations to help villagers use electricity safely.

3.2 Strengthen inspections and eliminate hidden dangers of accidents

Power grid managers should regularly inspect rural electricity consumption, strictly follow the defect management system and eliminate hidden dangers one by one. Staff should give full play to their subjective initiative in inspection work, and are strictly prohibited from passively treating problems when encountering them. They should take the initiative to find ways to solve problems. For example, if you see that a wire is dragging on the floor due to being too long, you need to arrange for personnel to solve it immediately to avoid excessive friction between the wire and the ground, causing the protective layer to crack and causing the risk of leakage.

3.3 Clarify the scope of responsibilities and jointly manage with villagers

Power facilities should be protected, based on the principle of localized management, and clear responsible persons and responsibilities should be set up to eliminate mutual blame in the event of an accident. responsibility phenomenon. Under this working mode, power grid managers will be more motivated to work and complete their jobs with a high degree of enthusiasm for line protection. In addition, managers can sign power grid facility protection contracts with villagers to let villagers clarify their responsibilities for power grid protection and reduce malicious damage to power grid facilities. Power grid management is essentially a matter completed by two entities. Only with coordination between both parties can the effectiveness of power grid management be guaranteed, thereby reducing risk factors and improving rural electricity safety.

4 Conclusion

In summary, rural power grid management should first eliminate ideological loopholes and behavioral defects such as villagers’ subconscious lack of attention to the power grid and non-standard management, and through publicity The joint deployment of power grid management, inspection, and management will strengthen the management of the power grid, let villagers understand the importance and necessity of power grid management, fundamentally change the problems existing in traditional management and use, and minimize the risks of electricity use. In short, power grid management should be carried out from both managers and villagers. Under the strict control of inspection and management points, safe operation results can be achieved through optimization in all aspects, making rural electricity use safer.