The advantages of copper core cable over aluminum core cable: 1. Low resistivity: The resistivity of the aluminum core cable is about 1.68 times higher than that of the copper core cable. 2. Good ductility: The elongation rate of copper alloy is 20~40%, the extension rate of copper for electrical use is more than 30%, and the aluminum alloy is only 18%. 3. High strength: Permissible stress at room temperature, copper is 7~28% higher than aluminum. Especially the stress at high temperature, the difference between the two is even far. 4. Anti-fatigue: Aluminum repeatedly bends and breaks easily, but copper is not easy. In terms of elasticity, copper is about 1.7 to 1.8 times higher than aluminum. 5. Good stability, corrosion resistance: The copper core is resistant to oxidation and corrosion, while the aluminum core is susceptible to oxidation and corrosion. 6. Large current-carrying capacity: Due to the low resistivity, the copper-core cable of the same cross-section is about 30% higher than the allowable ampacity (maximum current that can be passed) of the aluminum-core cable. 7. Low voltage loss: Due to the low resistivity of the copper core cable, the same current flows through the same section. The voltage drop of the copper core cable is small. Therefore, the same transmission distance can ensure higher voltage quality; or, under the condition of allowable voltage drop, the copper core cable can reach a long distance to transmit electrical energy, that is, the power supply coverage area is large, which is conducive to network planning and reduction. The number of supply points is set. 8. Low heating temperature: Under the same current, the copper cable of the same section has a much smaller heating capacity than the aluminum core cable, making the operation more secure. 9. Low energy consumption: Since the copper has a low electrical resistivity, it is obvious that the power loss of the copper cable is lower than that of the aluminum cable. This will help improve the efficiency of power generation and protect the environment. 10. Anti-oxidation and anti-corrosion: The connector of the copper core cable has stable performance and will not cause accidents due to oxidation. The joints of the aluminum core cable are often unstable and cause accidents due to increased contact resistance and heat generation due to oxidation. Therefore, the accident rate is much greater than copper core cable. 11.Convenient construction: 1The copper core has good flexibility, and the allowable radius of curvature is small, so the turning is convenient, and the pipe is easy to wear; 2 The copper core is resistant to fatigue, repeated bending is not easy to break, so the wiring is convenient; 3 the mechanical strength of the copper core is high, It can withstand large mechanical tension and bring great convenience for construction and laying, and also creates conditions for mechanized construction. Aluminum core cable advantages: 1. Cheap: Copper rod is 3.5 times the price of aluminum rod, copper is 3.3 times the proportion of aluminum, so the aluminum core cable is much cheaper than the copper core cable, suitable for low-cost projects or temporary electricity. 2. The cable is very light: The weight of the aluminum core cable is 40% of that of the copper core cable, and the construction transportation cost is low. 3. Anti-oxidation, anti-corrosion: Aluminum reacts with oxygen in the air to quickly form an oxide film, which can prevent further oxidation, so aluminum wire is a must for high voltage, large cross-section, large-span overhead transmission. Although the aluminum core cable is cheap, the copper cable has prominent advantages in the cable power supply, especially in the field of underground cable power supply. Underground power supply using copper core cable has the characteristics of low accident rate, corrosion resistance, high reliability, and convenient construction and maintenance. This is also the reason why domestic copper cables are mainly used in underground power supply. Heat Preservation Anticorrosive Pipe Series Products
Anticorrosive and heat insulation fittings include anticorrosive insulation elbow, anticorrosive thermal insulation three links, anticorrosive thermal insulation bend pipes, anticorrosive and heat insulation different diameter pipes and so on. The anticorrosive and heat insulation pipe fittings are closely combined with high density polyethylene outer pipe, polyurethane foam insulation layer and inner work pipe body.
The heat insulation elbow is mainly used for the steering of the heat preservation pipe, which is generally used with the insulation pipe. It is used for compensation according to the heat insulation engineering pipeline design, so that the elbow can also have enough insulation performance, the standard elbow angle is 30, 45, 60, 90 degrees. Widely used in liquid and gas pipeline network, chemical pipeline insulation engineering oil, chemical, central heating network, central air conditioning ventilation pipe, municipal engineering pipe turning place. The main implementation standard CJ/T200 - 2004 "technical conditions for prefabricated direct buried steam insulation pipe for urban heating", CJ/T104---2005 "technical specification for direct buried steam pipeline for urban heating", SY/T114-2000, SY/T115-2001 "high density polyethylene polyurethane foam insulation Steel Pipe".
Pipeline anticorrosion refers to measures to slow down or prevent pipelines from being eroded and metamorphosed by chemical, electrochemical, or microbial metabolism.
Heat Preservation Pipe,Anti Corrosion Pipe,Underfloor Heat Preservation Pipe,Underfloor Anti Corrosion Pipe HeBei GuangHao Pipe Fittings Co .,LTD (Cangzhou Sailing Steel Pipe Co., Ltd) , https://www.guanghaofitting.com
Copper core cable and aluminum core cable comparison