Publish Time: 2023-04-03 Origin: Site
When they are in a hurry to use electricity, many people want to buy cables, but there are too many wires and cables on the market. Which manufacturer's wires and cables are authentic? There are too many wire and cable manufacturers in China, tens of thousands, and basically all have formal business licenses and qualifications; if you want to find a better manufacturer, look for a large-scale company, and a listed cable manufacturer, and the establishment time is longer There are too many regular wire and cable manufacturers in China, what is regular? In addition to the procedures, the more important quality of the produced wires and cables meets the requirements of the national standard, so that everyone can use them without risk. If you don't know how to choose, you can choose from brands, word of mouth, recommendations, etc. Only those certified by the market are recognized by everyone, such as Far East, Shangshang, Qifan, Henan Pacific Cable, etc.
There are tens of thousands of formal wire and cable manufacturers in China, but it can be said that there is no strongest one. Compared with famous foreign cable companies, such as Alstom, General Motors, Furukawa, Nexans, etc., there are still considerable difference. Therefore, among the wire and cable companies in our country, it can only be said that there are relatively strong ones. You can search for "rankings or rankings of China's wire and cable companies" on the Internet, and you will know it at a glance.
Power cable manufacturer, Dongguan XSD Cable Technology Co., Ltd. has been focusing on the R&D and sales of wires and cables for 10 years. Its main business is special cables, driving cables, low-smoke and halogen-free cables, fire-resistant cables, silicone rubber cables, tensile cables, high-temperature resistant cables, etc.
The basic structure consists of four parts: core (conductor), insulating layer, shielding layer and protective layer.
1. Wire core The wire core is the conductive part of the power cable, which is used to transmit electric energy and is the main part of the power cable.
2. Insulation layer The insulation layer is to electrically isolate the wire core from the ground and the wire cores of different phases to ensure the transmission of electric energy. It is an indispensable part of the power cable structure.
3. Shielding layer 10KV and above power cables generally have a conductor shielding layer and an insulating shielding layer.
4. Protective layer The function of the protective layer is to protect the power cable from the intrusion of external impurities and moisture, and to prevent the power cable from being directly damaged by external force.
According to the insulation materials, the staff of power cable manufacturers can be divided into oil-impregnated paper insulated power cables, plastic insulated power cables, and rubber insulated power cables. According to the voltage level, it can be divided into medium and low voltage power cables (35 kV and below), high voltage cables (above 110 kV), extra high voltage cables (275~800 kV) and extra high voltage cables (1000 kV and above). In addition, it can also be divided into AC cables and DC cables according to the current system.
Oil-impregnated paper insulated power cables Cable manufacturers use oil-impregnated paper as insulated power cables. Its application history is long. It is safe and reliable, has a long service life and is inexpensive. The main disadvantage is that the laying is limited by the drop. Since the development of non-drip impregnated paper insulation, the problem of drop limitation has been solved, so that oil-impregnated paper insulated cables can continue to be widely used.
Plastic insulated power cables Power cables with extruded plastic insulation. Plastics commonly used by cable manufacturers are polyvinyl chloride, polyethylene, and cross-linked polyethylene. The plastic cable has simple structure, convenient manufacturing and processing, light weight, convenient laying and installation, and is not limited by laying drop. Therefore, it is widely used as medium and low voltage cables, and has a tendency to replace viscous impregnated oil-paper cables. Its biggest disadvantage is the existence of dendrite breakdown, which limits its use at higher voltages. PVC power cables are low in price and widely used, but have large dielectric loss, and are generally used in systems with operating voltages below 10 kV.
The insulation layer of rubber insulated power cable manufacturers is made of rubber plus various compounding agents, which are extruded on the conductive wire core after full mixing and vulcanized by heating. It is soft and elastic, suitable for occasions with frequent movement and small bending radius. Therefore, it is often used as mining cables, marine cables, mining machinery, and cables for X-ray machines. Its structural feature is that the wire core is twisted with multiple thinner monofilaments, and the twisting pitch is smaller. Commonly used rubber materials for insulation include natural rubber styrene-butadiene rubber mixture, ethylene-propylene rubber, butyl rubber, etc.
Low-voltage cables: suitable for fixed laying on transmission and distribution lines with AC 50Hz, rated voltage 3kv and below for power transmission.
Use characteristics: ①The maximum rated temperature of the cable conductor is 90°C. ②The maximum temperature of the cable conductor does not exceed 250°C during short circuit (the longest duration is not more than 5 seconds).
Medium and low voltage cables: (generally refer to 3 5 KV and below): PVC insulated cables, polyethylene insulated cables, XLPE insulated cables, etc.
High-voltage cables: (generally 110KV and above): polyethylene cables and XLPE insulated cables, etc.
Extra-high voltage cables: (275~800 kV).
UHV cables: (1000 kV and above). Representative type vv22 vv32 series; yjv32 yjv22 series. Including flame-retardant, fire-resistant power cables.
Executive standard: GB/T 12706-2002 (equivalent to IEC502), flame-retardant cables and fire-resistant cables also comply with IE332-3, IEC331, and can also be produced according to the technical requirements of users.
1. It is generally buried in the soil or laid indoors, in ditches, and tunnels. The insulation distance between lines is small, no poles and towers are needed, and it occupies less land, basically occupying no space on the ground.
2. It is less affected by climate conditions and surrounding environment, with stable transmission performance and high reliability.
3. It has more favorable conditions for the development of ultra-high voltage and large capacity, such as low temperature, superconducting power cables, etc.
4. Large distributed capacitance.
5. Less maintenance workload.
6. The possibility of electric shock is small.
Dongguan XSD Cable Technology Co., Ltd. was established in 2013. It is located in Dongguan City with convenient transportation and beautiful scenery. Sales, main production: manufacturers of plastic insulated cables, multi-core flexible cables, control cables, PVC insulated wires, XLPE power cables, armored cables, low-smoke halogen-free power cables and solar cables, silicone cables, YH-YHF welding cables, Aluminum alloy cables and mineral cables include flame-retardant series, coaxial cables, Ethernet cables, etc. At the same time, various special cables are supported.
XSD cable manufacturer has a skilled professional team, modern production equipment, and sophisticated testing instruments. Raw materials, production, and finished products are strictly tested in accordance with national standards. The products have passed UL, CCC, CSA and other quality system certifications, and have obtained many Patent certificate, with independent trademark. The products have been highly praised by many customers at home and abroad, and have established long-term cooperative relationships with customers in Southeast Asia, Africa, Australia, Latin America, the Middle East, Europe, North America and other countries.
Since our establishment in 2013, XSD Cable has been one of the professional manufacturer in the field of wire and cable.