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Various equipment materials for overhead insulated conductors
Release time:
2022-08-02
Overhead insulated conductor arrester An appliance used to protect electrical equipment from high transient overvoltage hazards and to limit the duration (usually amplitude) of current. This term includes any external cleaning necessary for the normal operation of the appliance during operation and installation, whether or not it is part of an integral whole.
1. Lightning arrester
Overhead insulated conductor arrester An appliance used to protect electrical equipment from high transient overvoltage hazards and to limit the duration of current (usually amplitude). This term includes any external required for the normal operation of the appliance during operation and installation. Clean up, whether it is an integral part or not.
Popular explanation: overhead insulated wire arrester is a device installed on the line, usually in a closed state, when the line is struck by lightning or induced lightning lead to excessive line current open circuit, the lightning current into the earth, in order to ensure the normal operation of the power grid. There is a 66kV lightning arrester on the overhead insulated conductor, and then a distribution network is placed on the pole.
2. Pull wire
It is often seen that the wire rope is pulled on the pole of the overhead insulated wire. The main function is to pull the pole to prevent the pole from toppling to the other side.
3. Grounding system
Lightning arresters, towers, grounding wires and other overhead insulated conductor related facilities on the line into the ground, the main function is when the tower, grounding wire and other equipment should not be charged, they introduce current into the grounding facilities.
4. Vibration damping device
The wire on the overhead insulated conductor line is affected by the wind, and the breeze vibration under uniform low wind speed often occurs. In order to avoid the damage caused by this vibration, there is an anti-vibration hammer. When the overhead insulated wire vibrates in the breeze, the vibrating hammer suspended on the cable vibrates with the operation of the cable, and friction occurs between the steel strands of the vibrating hammer. The vibration energy transmitted to the vibration hammer is dissipated through the friction energy between the steel strands, which effectively controls the wind vibration of the steel cable.
5. Bird repellent device
The main reason for bird repellent on overhead insulated wires is to prevent bird nests from being built on towers. In fact, bird nests are also good. The main problem is that bird excrement is easy to cause flashover circuits. Think about it because bird excrement is cut off in your house, which sounds a bit strange. However, this is the case, so all kinds of bird repellent equipment for overhead insulated wires are developed. Moreover, each part of the power grid also depends on different birds in different regions, A variety of bird repellent devices have been developed to prevent birds from nesting on the tower without harming them.
6. Alarm device
This does not need to elaborate on the overhead insulated wire has electricity is electrical danger! It should be emphasized that electricity is really very dangerous. Do not fish or fly kites under overhead insulated wires. The voltage at home is only 220V, while the overhead insulated wires in fishing places are basically 10kV, that is, 10000V. In case of an accident, there is no possibility of survival at all! Pay attention to the Golden Great Wall to learn more about overhead insulated conductors.
golden great wall cable is a collection of research, development, production, sales in one of the integrated modern cable production enterprises. Its superior geographical location, advanced equipment, innovative ideas, rich human resources. On this basis, we have always insisted on introducing advanced equipment, equipped with high-pressure cross-linking three-layer co-extrusion production line with international advanced level, and domestic advanced production equipment such as wire drawing machine, stranding machine, cable forming machine, shielding machine and extrusion unit, etc.; established high-specification laboratories such as material laboratory, fire-resistant laboratory and high-pressure bureau discharge laboratory, it has advanced testing equipment such as tensile testing machine, plastic combustion test device, DC double arm bridge, insulation resistance tester, projector, fault detection and positioning tester, which provides favorable guarantee for the production of cable products. Welcome friends to come to consult.
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