Supply JKLYJ-10KV-1 * 50 Zhejiang Wenzhou Overhead Insulated Line Manufacturer

Description :

Supply JKLYJ-10KV-1 * 50 Zhejiang Wenzhou Overhead Insulated Line Manufacturer

Function of overhead insulated lines:

Advantages of overhead insulated conductors

1.1 Ideal insulation performance

The outer layer of the overhead insulated conductor has an insulation layer, which can effectively reduce the distance between the lines compared to traditional bare conductors. The insulation requirements are not high, and it can also increase the number of circuits in the same pole line, avoiding the problem of phase to phase short circuit in the line. The schematic diagram of the structure of the overhead insulated conductor is shown in Figure 1.

1.2 Good anti-corrosion performance

The insulation layer of overhead insulated conductors can prevent the internal conductors from being affected by acid rain and oxidation factors, which can effectively improve the service life of the line.

1.3 Simple Structure

1.3 Simple Structure

The application of overhead insulated wires can simplify tower structures and be laid along walls, which can beautify streets and save materials. In addition, the application of overhead insulated wires is beneficial for the development of urban greening work and can reduce the amount of tree pruning.

1.4 Narrowing down the corridor

The application of overhead insulated conductors can reduce the distance between lines, narrow the corridors of lines, and facilitate the laying of lines.

1.5 Extended maintenance cycle

The application of insulation layer effectively improves the reliability and safety of overhead insulated wire operation, can effectively extend the maintenance cycle, and reduce power outage time.

Characteristics of using overhead insulated conductors:

1. Rated voltage: 0.6/1KV, 10KV;

2. The long-term allowable working temperature for cables is 70 ℃ for PVC insulation and 90 ℃ for cross-linked polyethylene insulation.

3. When short circuited (maximum time not exceeding 5 seconds), the temperature of the cable is 160 ℃ for PVC insulation, 150 ℃ for high-density polyethylene insulation, and 250 ℃ for cross-linked polyethylene insulation;

4. The ambient temperature during cable laying shall not be lower than -20 ℃;

5. Allowable bending radius of cable:

(1) Cables with a rated voltage below 1KV: For cables with an outer diameter (D) less than 25mm, it should not be less than 4D, and for cables with an outer diameter (D) of 25mm or more, it should not be less than 6D;

(2) The rated voltage of 10KV cable should not be less than 20 (D+d). In the formula: D-actual outer diameter of the cable, d-actual outer diameter of the cable conductor.

Overhead insulated conductors are a new series of products for transmitting electrical energy through overhead transmission lines, and are preferred for the construction and renovation of 10kV transmission lines in power grids. It is the most suitable series of products for line maintenance and safety. Soft copper wire core products are suitable for transformer down leads.

Overhead insulated lines, Aerial Insulation Line， An insulated wire made by twisting single or multiple layers of aluminum wire and extruding an insulation layer outside the wire. This type of wire is erected by a tower at a certain height to transmit power and is suitable for high and low voltage transmission and transformation overhead lines.

For the ground insulation of high-voltage transmission and distribution network overhead lines, air is generally used. In the past, distribution lines (except for 380V below 10kV) generally used bare wires. However, due to the complex distribution environment in urban areas, short-circuit grounding and lightning strikes often occur, resulting in reduced power supply reliability. Therefore, currently, insulated wires (i.e. the outer layer of the wire is wrapped with insulation) are generally used for overhead lines below 10kV, which is called insulated overhead lines.

Standard GB/T14049-2008 for all aluminum 10kV overhead insulated conductors

Supply JKLYJ-10KV-1 * 50 Zhejiang Wenzhou Overhead Insulated Line Manufacturer

　　Transportation precautions;

　　It is strictly prohibited to throw cables or cable reels containing cables from a height during transportation, especially at lower temperatures (usually around 5 ℃ or below). Throwing or dropping cables may cause insulation and sheath cracking. Try to avoid storing cables in an exposed manner outdoors as much as possible, and cable reels are not allowed to be laid flat. When lifting the packaging of the JKLYJ overhead line model, it is strictly prohibited to lift several reels at the same time. On vehicles, ships, and other transportation vehicles, cable reels should be secured using appropriate methods to prevent collisions or tipping over, in order to prevent mechanical damage to the cables. Cables must not come into contact with acids, alkalis, and mineral oils, and must be stored separately from these corrosive substances There shall be no harmful gases that damage insulation or corrode metals in the warehouse where cables are stored. During the storage period, the cable should be rolled regularly (once every 3 months in summer, and may be extended at discretion in other seasons). When rolling, roll the storage tray upside down to prevent the bottom from getting damp and rotting. When storing, it is important to regularly pay attention to whether the cable head is intact and undamaged.

　　Dazheng Electric Wire Co., Ltd. is one of the main production enterprises of wires, wires, cables, and optical cables in China. It is a modern enterprise engaged in the production, research and development, and sales of high-tech products such as wires, wires, cables, and optical cables. The company was established on May 16, 2007 and is located in Dazheng Industrial Park, Renqiu City, Hebei Province. It is situated in the center of Shijiazhuang, Beijing, and Tianjin, the provincial capital of Hebei Province, and is close to the beautiful North China pearl Baiyangdian, as well as the Daguang Expressway, Jinghu Expressway, Jinshi Expressway, 106 National Highway, Beijing Kowloon Railway, and Jinbao Highway running through the city, making transportation very convenient. The company covers an area of 13508 square meters, with a building area of about 8000 square meters and more than 200 employees, including 30 technical personnel. The registered capital is 105 million yuan, the fixed assets are 300 million yuan, and the annual production capacity is 900 million yuan. In 2016, the output value of aluminum products reached 120 million yuan. The company has six modern production workshops and more than 50 sets of production and inspection equipment. The production and testing equipment is advanced and complete, mainly including frame twisting machines, 1+1 cross-linking extruders, Shenma 630 tube twisting machines, 630 cage twisting machines, cold press welding machines, aluminum large pulling machines, tube twisting machines, extruders and other advanced production equipment such as DC bridges, metal tensile testing machines, electronic scales, wire winding and twisting testers, adhesion testers, etc. Testing equipment such as sexual experimental devices. Production: Overhead insulated conductors, steel cored aluminum alloy conductors, heat-resistant steel cored aluminum alloy stranded wires, steel cored aluminum stranded wires, aluminum clad steel cored aluminum stranded wires, OPGW conductor optical cables, OPPC composite phase line optical cables, steel stranded wires, aluminum clad steel stranded wires, cross-linked power cables, control cables and other products. Some products have a large inventory and can be shipped quickly.

　　Dazheng Electric Wire Co., Ltd. has been awarded multiple honorary titles such as provincial and municipal contract credit enterprises, consumer trustworthy units, and Hebei Province measurement qualified units for many years, thanks to advanced production equipment and exquisite technical processes, complete testing equipment and perfect testing methods, modern scientific management methods, and rigorous quality assurance systems. It has cooperated with state-owned enterprises such as China Petroleum Corporation, Hebei Construction Investment Group, State Grid Corporation of China, and Wind Power Investment Group, and has received high praise from customers for its excellent product quality and service. The development strategy of Dazheng Electric Line is to adhere to the development concept of "quality excellence, integrity pursuit forever", adhere to the development path of "strict quality, efficient management, keeping pace with the times, technological innovation, environmental protection and consumption reduction", improve scale efficiency, develop products, create the Dazheng Electric Line brand, serve China's power industry, and contribute to society!

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