National standard manufacturer JKLYJ-10KV-35 for overhead insulated lines

Description :

　　National standard manufacturer JKLYJ-10KV-35 for overhead insulated lines

　　Details of overhead insulated conductors;

　　JKLY JKLYJ aluminum core cross-linked polyethylene insulated overhead cable

　　JKLY/Q aluminum core lightweight cross-linked polyethylene insulated overhead cable

　　JKLGYJ aluminum core cross-linked polyethylene insulated strip steel core overhead cable

　　JKLGYJ/Q aluminum core lightweight cross-linked polyethylene insulated strip steel core overhead cable

　　Technical Specifications:

　　1. Purpose: Suitable for overhead power lines with AC rated voltage of 35KV and below, used in places with high safety requirements such as urban areas, high-rise buildings, and forest areas.

　　2. Usage characteristics:

　　The rated voltage is 1KV, 10KV, and 35KV

　　Long term operating temperature of cables:

　　Polyvinyl chloride (PVC) and polyethylene (PE) insulation should not exceed 70 ℃;

　　Cross linked polyethylene (XLPE) insulation should not exceed 90 ℃.

　　Temperature of cable conductor during short circuit (maximum duration not exceeding 5 seconds);

　　Polyvinyl chloride insulation shall not exceed 160 ℃;

　　Polyethylene insulation not exceeding 150 ℃;

　　Cross linked polyethylene insulation shall not exceed 250 ℃.

　　The temperature for cable laying should not be lower than -20 ℃.

　　Allowable bending radius of cable:

　　1KV cable

　　Cable outer diameter D<; 25mm……４D;

　　Cable outer diameter D ≥ 25mm... 6D

　　10KV cable

　　Single core cable 20 (D+d) ± 0.5%.

　　Multi core cable 15 (D+d) 0.5%.

　　In the formula: D - actual outer diameter of the cable (mm);

　　D - The actual outer diameter of the conductor (mm).

　　Overhead insulated cables are mainly used in the renovation of urban and forest power grids. This product has a simple structure, is safe to use, and has excellent mechanical, physical, and electrical properties. Excellent resistance to electric traces, surface discharge, and atmospheric conditions. When overhead cables are used for long-distance power transmission in suburban areas, the cable inductance value is very low, the line voltage drop is small, and there is no need to add voltage boosting measures, which has high economic benefits. 2. Usage Characteristics 2.1 The long-term allowable working temperature of the cable for polyvinyl chloride (PVC) and polyethylene (PE) insulation should not exceed 70 ℃; Cross linked polyethylene insulation (XLPE) should not exceed 90 ℃. 2.2 During a short circuit (with a maximum duration of 5 seconds), the conductor temperature for polyvinyl chloride (PVC) insulation should not exceed 130 ℃; Polyethylene (PE) insulation should not exceed 150 ℃; Cross linked polyethylene insulation (XLPE) should not exceed 250 ℃. 2.3 Allowable bending radius for cables: For 10kV and 35kV cables, the allowable bending radius for single core cables is 20 (D+d); The allowable bending radius for multi-core cables is 15 (D+d); Where D is the actual outer diameter of the cable and d is the actual outer diameter of the conductor. For 1kV cables: for cables with an outer diameter (D) less than 25mm, the bending radius should not be less than 4D; for cables with an outer diameter (D) greater than or equal to 25mm, the bending radius should not be less than 6D. 2.4 Cable laying temperature: The cable laying temperature should not be less than -20 ℃. 3. Cable model specifications and implementation standards 3.1 Cable model specifications The cable model specifications are shown in Table 13.2 Implementation standards GB12527-90 "Overhead Insulated Cables with Rated Voltage of 1kV and Below" GB14049-93 "Overhead Insulated Cables with Rated Voltage of 10kV and 35kV"

　　National standard manufacturer JKLYJ-10KV-35 for overhead insulated lines

　　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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• National standard manufacturer of overhead insulated lines