Copper & Aluminum Wire
Les revêtements polyester sont largement utilisés dans les secteurs de la construction, de l’automobile, de l’électronique et de l’aérospatiale, tels que les façades de bâtiments, les carrosseries de voitures et les boîtiers de produits électroniques, afin d’en améliorer la durabilité et l’esthétique.
China’s GB standards have been almost equivalent to IEC or ISO, almost no equivalent ASTM standards, that is, if you meet the requirements of IEC or ISO standards, you can usually find the corresponding GB standards, while encountering the requirements of ASTM standards, only reference to adjust. With a broader range of practical guidance and reference significance.
According to the cable laying environment and the different load, is designed to choose the cable specification type specifications. The non-armor type is suitable for overhead, indoor, tunnel, cable trench, etc. It cannot bear the action of J mechanical external force, while the armor type can be buried underground under the same conditions as the non-armor type. Can withstand certain mechanical external force. Single-core cables are not allowed to be laid in pipes that produce magnetism. Flammable and explosive, chemically corrosive and high temperature, low temperature and other occasions should choose a special type of cable.
Cable waterproof way is generally divided into two kinds of longitudinal water resistance and radial diameter water. Longitudinal water resistance is generally used to block water yarn, water-blocking powder and water-blocking tape, their water-blocking mechanism is in these materials contain a water-expandable material, when the water from the end of the cable or from the sheath defects into the water, this material will be water quickly expand to prevent further diffusion of water along the cable longitudinal, so that the purpose of the cable longitudinal waterproofing. Radial water resistance is mainly achieved by extruding HDPE non-metallic sheathing or hot pressing, welding, cold drawing metal sheathing.
The difference between high-voltage cables and low-voltage cables lies mainly in the rated voltage withstood and the difference in the environment and use. Therefore, when selecting and using cables, it is necessary to determine the appropriate cable type according to the specific application requirements and standard regulations.
Communication cable (English name: communication cable) is a cable used for near-range audio communication and long-range high-frequency carrier and digital communication and signal transmission, and is one of the five major cable products in...
Wire drawing machine is a kind of production equipment used to produce wires and cables, mainly for stretching and forming the metal core of wires or cables. It works by feeding metal wire into...
The stator core is an important part of the magnetic circuit of the motor, which together with the rotor core and the air gap between the stator and the rotor form the complete magnetic circuit of the motor. In an asynchronous motor, the magnetic flux in the stator core is alternating, thus producing core losses.
Bare copper wire is a pure copper rod drawn from the copper wire, the material is single, both inside and outside the copper metal, the appearance of the past is yellow, because the bare...
The standards developed by NEMA cover all aspects of electrical equipment, including wire and cable, motors, switches, receptacles, lamps and lanterns, batteries, transformers, generators, and more. These standards are not only important to the development and application of the U.S. electrical manufacturing industry, but also have a positive impact on the development and application of the global electrical manufacturing industry.
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