Overhead Lines Articles
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What is HV and LV Power Distribution System?
An HV power distribution system simply means a high voltage distribution system while an LV is a low voltage or tension power distribution system. LV power supply can be around 230 Volts for a single-phase connection and 400 Volts for a three-phase connection. On the other hand, the HV distribution system can even reach 11Kilo-Volts, meaning it is highly used by bulk power purchasers like ...
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What is the structure of ACS
The interior of ACSR conductor is steel core, and the exterior is wrapped around the steel core with aluminum wire by twisting; The steel core mainly plays the role of increasing strength, and the aluminum strand mainly plays the role of transmitting electric energy. The ACSR bare conductor has the characteristics of very simple structure, convenient erection, convenient maintenance, low line ...
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Why ACSR conductors are used?
In the modern era of advanced science and technology, many modern industrial facilities have appeared in our world and exist in our lives. ACSR also plays an important role in power. ACSR refers to the reinforced conductor with single or multi-layer aluminum strands stranded outside the galvanized steel core wire. It is mainly used in the power and transmission line industries. The ACSR bare ...
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underground cables have become increasingly expensive
With the acceleration of urbanization and economic and social development, overhead lines affect the city's appearance and landscape, which can no longer meet people's pursuit of visual perception and the safety needs of production and life. The investment in the transformation and construction of urban center distribution network cables into the ground has been increasing year by year, and ...
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Medium strength aluminum alloy conductor overhead insulated cable
Henan Qingzhou Cable Co., Ltd. belongs to Henan Qingzhou Group. A comprehensive enterprise specializing in the research, manufacturing, production, sales and service of wires, cables and refractory materials. Products include overhead bare conductors, overhead insulated cables, PVC/XLPE armored/non-armored power cables below 36kv, wires, concentric service cables, control cables, construction ...
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Hazards of Transmission and Distribution Lines in Winter
Freezing is an important reason for the breakdown of towers (poles) of power overhead transmission lines and power distribution lines in winter. Strengthen and improve the anti-freezing ability of power transmission and distribution lines, ensure safe, reliable and economical operation, and effectively reduce the accident rate of power transmission and distribution lines. It is related to the ...
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ACSR's Corrosion Resistant Product Range
Generally speaking, the design life of overhead bare conductors is 30-50 years. However, with the development of the times and the advancement of technology, people's life expectancy for overhead conductors continues to increase. In coastal areas and industrial areas, the corrosive environment is complex and diverse. Moisture, acidity, industrial pollutants, etc. will cause chemical corrosion and ...
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What are the types of opgw cable
According to the different components and structures of the OPGW, the OPGW is classified as follows. 1 According to the material of the light unit protection tube, the OPGW structure type is divided into stainless steel tube type OPGW and aluminum tube type OPGW (including aluminum clad stainless steel tube type OPGW). 2 According to the different positions of the optical unit in the OPGW ...
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What is the magnet wire (winding wire)?
Winding wire is mainly used for various motors, instruments and so on. Derivatives/new products of wires and cables: Derivatives/new products of wires and cables are mainly due to the requirements of different applications, application requirements, convenience of equipment and reduction of equipment costs, etc., and adopt new materials, special materials, or change product structure. Different ...
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What are the products of power cable
The main features of power cable products are: extruding (winding) an insulating layer on the outside of the conductor, such as overhead insulated cables, or twisting several cores (corresponding to the phase wire, neutral wire and ground wire of the power system), such as overhead insulation with more than two cores cable, or add a jacket layer, such as plastic/rubber sheathed wire and cable. ...
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Product classification of wires and cables
Product classification of wires and cables Wires and cables are usually divided into the following three parts: 1. Power system The wire and cable products used in the power system mainly include overhead bare wires, bus bars (buses), power cables (plastic cables, oil paper power cables (basically replaced by plastic power cables), rubber sheathed cables, overhead insulated cables), branch cables ...
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How to choose the cross-sectional area of the power cable
The choice of the cross-sectional area of the power cable is related to the investment, the loss and voltage quality of the line, and the service life of the cable. If the cross-sectional area of the power cable is too small, the voltage quality will drop, the line loss will be too large, and the initial investment will be too high. Therefore, the appropriate cross-sectional area should be ...
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What are the advantages of power cable compared with overhead line?
Qingzhou wire and cable manufacturer will analyze for you the advantages of power cables compared with overhead lines? (1) The operation is reliable. As it is installed in concealed places such as underground, it is less damaged by external forces, has less chance of failure, and the power supply is safe, so it will not cause harm to people; (2) The maintenance workload is small, and frequent ...
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How to lay direct buried underground cables and find fault points
How to lay temporary cables on site? Problem supplement: for the newly-built plant, the construction transformer and high-voltage line are far away from the construction center. As it is a steel structure plant, overhead lines cannot be adopted to avoid conflict with the installation of steel structure. Only low-voltage cables can be led from the transformer to the primary distribution box on the ...
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dried food! How to select specifications and models of overhead insulated cables
LV & MV Aerial Bundle Cable (ABC) Overhead Distribution Lines Application Aerial Bundle Cable (ABC cable) is a very innovative concept for overhead power distribution as compared to the conventional bare conductor overhead distribution system. It provides higher level of safety and reliability, lower power losses and ultimate system economy by reducing installation, maintenance and operative ...
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ADSS Fiber Optic Cable
Introduction of ADSS Fiber Optical CableADSS cable, All-dielectric Self-supporting Optical Cable (also known as All-dielectric self-supporting fiber optic cable). All-dielectric fiber optic cable is made of all-dielectric materials. Self-supporting means that the reinforcing member of the optical cable itself can withstand its own weight and external load. Because of its self-supporting , its ...
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Station Post Insulator
We offer different kinds of Station Post Insulator for Substation, such as Circuit Breaker (CB), Post Insulator, Disconnector, Potential Transformer (PT), Surge Arrester, etc. Contact us get more details about Station Post Insulator, such as TDS, Application Method, OEM etc. We can supply different type of polymer station post insulators,also customer required. The Introduction of Station Post ...
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RTV High Voltage Insulator Coating
Anti-pollution Flashover Coating (rtv insulator coating) High Voltage Insulator Coatings (HVIC) To prevent the electrical equipment from pollution flashover in humid climate; Free of surface maintenance and cleaning after coated. Features of RTV High Voltage Insulator Coating: 1. Excellent hydrophobicity and hydrophobic migration, so it can prevent pollution flashover effectively. 2. Resist to ...
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High Voltage Insulator Coating Series
High Voltage Insulator Coating (HVIC) is used on excessive voltage insulators to forestall flashover and arcing, particular in severely contaminated environments. Following the following 2 tips, you will get good results: Clean all surfaces of dust, grease and wax & Check temperature and humidity when applying. High Voltage Coating FunctionInsulator contamination, from salt spray, industrial ...
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6 Typical electrical hazards in the workplace
What’s at Stake? Electrical shock is a leading cause of workplace fatalities and almost every day approximately one electrocution, 10 disabling injuries and 100 electrical shocks are reported. What’s the Danger? There are four main electricity-related injuries: Electrocution; Shock, which is caused when contact is made with a live wire or equipment that is not grounded, ...
By SafetyNow
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