Application of High-voltage Substation Electronic Fence in Security Industry

With the continuous development of China’s economy and the advancement of heavy industry and light industry, the demand for electricity continues to grow year by year. Thermal power plants, nuclear power plants, wind power plants, and hydropower plants continue to increase. The nationwide renovation project of the power-related sector network is implemented, and the power network continues to Development covers the major north and south of China. With the continuous improvement of the intelligent system for power security prevention, various substations, substations, communication stations, hub stations, and power supplies warehouses in the country have to achieve few or no one's duties, so that technical protection can be used instead of air defense to increase production efficiency. The traditional manual management mode of substations has not met the needs of various developments of the power system. The power system is gradually beginning to implement the centralized control station to implement remote management systems for all sub-controls, thereby more effectively improving efficiency.

On the other hand, in recent years, with the changes in the socio-economic structure, urban construction has become more modernized, and the migration of population has increasingly turned into economically developed regions. At the same time, these regions have also brought some unrest. The investigation of all types of crimes revealed that theft is the most rampant. Among them, incidents of burglary accounted for a high proportion. In the case of high-voltage power transmission and transformation substations around the country, large-scale enclosed sites with sound facilities such as 50KV, 110KV and 220KV, and 500KV substations have often become the primary targets for theft and patronizing. Although these sites are equipped with a security team, but the manpower prevention, after all, the control surface is incomplete, it is inevitable that there is a blind spot, a little negligence, can easily be holed in by the leaked, resulting in damage to property and even people, but also caused a bad social impact There is harmony in the social environment.

In large-scale substations, there have been illegal actions such as the perimeter fences of transformer substations, attempts to break into substations for theft, destruction of power generation and transmission equipment, and so on. This poses a great threat to power transmission security, self-safety, and property safety.

The main features of high-voltage power transmission stations:

1. Decentralized substations, unattended or less attended by personnel, and difficulties in timely dispatching to the police;

2. The physical barrier is weak, and intruders are more likely to climb in and out. At present, there is only a simple concrete wall or fence-type physical fence around the perimeter of the substation. There is almost no perimeter alarm system or only a simple infrared radiation shooting alarm system. The intruder is more likely to climb into and intruder, and there are potential safety hazards.

3. In the event of an accident, it will cause great harm to people and property, and its perimeter protection requirements are very high;

4, the use of equipment stability, reliability and anti-electromagnetic interference intensity requirements; transmission and reception of different signal energy, frequency bands, all require equipment from electromagnetic interference;

The customer requires that the system false alarm rate requirement is close to zero and the reliability is high;

The system adopts advanced technology and mature products;

The availability of the system meets the actual needs of customers for perimeter protection;

The economics of the system, the overall cost must not only be economic, but also consider the long-term operating costs of the system;

The confidentiality of the system, the confidentiality of the core technology must be narrow, and it must be strictly limited;

Deterrence, blocking, alarm, front-end fence warning deterrence, high-voltage pulse with electric shock function, host alarm function;

Perimeter zones are accurately divided, and security guards can quickly detect and promptly rush to the scene when someone invades.

High stability of the host, uninterrupted use 24 hours, easy maintenance;

Strong anti-interference, will not interfere with the normal use of other communications equipment;

Design Ideas The LACME Intelligent Perimeter Blocking Alarm System is the first line of defense that intruders need to traverse. It conforms to the advanced international security concept of “mainly blocking and assisting the police”, with good safety and reliability, and a high degree of intelligence. Low false alarm rate, simple installation and maintenance, etc., and can be networked with other security systems to increase the level of perimeter deterrence and the level of alert monitoring.

The electronic fence perimeter prevention system is integrated into the peripheral boundary wall or the outer wall of the inner building. The first time, the situation is alerted to the scene of the incident. When the intruder threatens the intruder, it promptly informs the security personnel to rush to the crime site. deal with. From the structural principles of the system, the purpose of prevention, and the analysis of the suitability of places in enclosed areas, the electronic fence perimeter defense system has certain advantages.

The system has introduced advanced warning concepts. Before the intruders actually commit the theft, they terminate the continuation of the crime and minimize the economic losses. While protecting their own interests, they also prevent the thefters from continuing their criminal activities. Moreover, the average cost of the early-stage costs of a large-scale electronic fence perimeter defense system is far lower than that of an indoor intrusion alarm system, but its effect is far better than the latter.

The electronic fence perimeter defense system is mainly used to detect intruders attempting to cross perimeter fences, cut or climb metal fences, attempt to break into walls, etc. These forced intrusions are monitored and analyzed by electronic processor units. This system detects special signature signals and converts them into alarm signals through simulation analysis of real intrusion attempts.

The LACME Intelligent Perimeter Blocking Alarm System is an advanced intrusion detection system. The advanced signal processing capability achieves a high level of detection range, eliminating false alarm rates from vibration of unrelated alloy wires such as wind, rain, animals, aircraft, and automobiles. And is not a source of vibration caused by intruders. This system has high reliability, minimal maintenance requirements, and is suitable for perimeter safety applications of various types and terrains.

Front-end and equipment components 1) Wall-top front-end fence composition:

The front part of the electronic fence is an important part of the electronic fence system. In order to ensure the normal operation of the entire electronic fence system and a long service life, the front end of the electronic fence must have basic functions such as anti-high pressure, anti-fouling, anti-oxidation and anti-corrosion. The front end consists of dozens of accessories, each of which is professionally developed for the production of electronic fences and molds. The accessories used in this design have obtained a number of design patents.

The front end fence of this case is composed of support rods, high-strength and pressure-resistant insulators, special alarm aluminum-magnesium alloy wires, high-voltage insulated wires, wire retractors, wire connectors, arresters, and warning signs and other components, forming a closed perimeter protection area. , Effectively block the invasion of humans or small animals.

Six-wire wall type front-end fence: Most of the substations have a solid wall with a perimeter of 2 meters or more. Our installation method: The wall-top front end fence is directly installed on the top of the wall, and the terminal rod should be installed on the center line of the wall. Hanger rod installation, there may be welding, embedded or clamp three ways, depending on the surrounding wall structure, choose a more appropriate way. For example, on the iron fence wall, the welding method may be adopted; on the concrete wall, the embedded method may be adopted; the clamp method may be adopted on the brick wall. As long as it is stable and beautiful, you can also use other methods. For medium-diameter 9mm resin glass fiber rods (middle rods), holes can be drilled directly on the wall and embedded directly after the stainless steel casing with an inner diameter of not less than 10mm; it can also be fixed by the casing pin.