Qingdao cable manufacturers: About the main uses of various wires and cables

1. Power cables and overhead wires and overhead wires in the power system (main line) are used to transmit and distribute high-power power lines.

2. Winding wire Winding wire is a conductive metal wire with an insulating layer used to wind coils or windings for electrical products. Its role is to generate a magnetic field through the current, or cut the magnetic field line to generate induction current to achieve the conversion of electrical energy and magnetic energy, so it is also known as the electromagnetic line.



3. Communication cables

It is a cable that carries telephone, telegraph, television, radio, fax, data and other telecommunication information.

Its uses are divided into:

(1) Local communication cables are used in telephone lines in the city, suburbs and local areas.

(2) long-distance communication cable carrier multichannel communication line; Long distance high frequency carrier communication and low frequency communication; Trunk line of long-distance communication.

(3) The interconnection of communication cable switches and other transmission equipment, telephone and telegraph equipment and data processing equipment for telecommunications equipment; Primary distribution, secondary distribution and connected with the distribution equipment; The audio connection between the main distribution frame in the program-controlled switching office and the user circuit board of the switching office can also be used for the audio connection between other communication equipment; Short connections within or between digital switching devices.

(4) Digital communication Symmetrical cable digital communication systems such as integrated services digital network (ISDN), local area network (LAN) and data communication systems.

(5) Radio frequency cables transmit radio frequency signals in radio communication equipment and related radio electronic equipment; Closed circuit television, common antenna television systems for branch and subscriber lines, and other electronic devices; Radio waves cannot be transmitted directly or in special environments such as tunnels, tunnels, and underground buildings with poor transmission, and dual functions of signal transmission and wireless are used at frequencies below 1GHz.

(6) Submarine communication cable Communication between the mainland and offshore islands, connecting the mainland and islands and carrier communication lines between islands, 120 submarine trunk communication system, as a communication line between coastal cities and islands.

(7) General communication line Communication user terminal equipment to the cable distribution box (box) between the user communication line; Indoor cable for telephone; Connect the telephone to the microphone or junction box, connect the switch to the plug.

(8) Optical cable is a kind of communication cable at present, the band used is within the near-infrared light, the wavelength range is 0.8 ~ 1.6μm. Since the communication capacity increases in direct proportion to the electromagnetic wave frequency, and the optical cable communication frequency of 1014 ~ 1015 orders of magnitude is 104 ~ 105 times higher than the commonly used microwave frequency, the characteristics of optical cable communication bandwidth and large capacity are obvious.

4, electrical equipment with wire and cable

Electrical equipment with wire and cable use a wide range of varieties, mainly involved in power supply, distribution and electricity needed for a variety of general and special wire and cable, as well as control, signal, instrumentation and temperature measurement of weak current system used in the wire and cable.

(1) Marine cable Marine cable is a special power cable for the power, lighting, control, communication, microcomputer and other systems of all kinds of ships in rivers and oceans, offshore oil platforms and water buildings.

(2) Mining cable Mining wire and cable refers to the coal mining industry dedicated to the ground and underground equipment for wire and cable products. These include cables for shearer, communication, lighting and signal equipment, as well as electric drill cables, cap lamp wires and 6kV power cables for underground mobile substations.

(3) Control, signal cable control, signal cable is used as a connection between various types of cable instruments and automatic devices, mainly used for control, monitoring contact circuit and protection line and other occasions, plays the role of transmission control, signal and so on. Widely used in a variety of industrial and mining enterprises, transportation and other important economic sectors, such as power plants, substations, power lines and petrochemical and other industries have adopted a large number of control cables, for the safe use of electricity and the operation of production systems, its function even exceeds the power cable used in the main trunk line. The signal cable in the railway signal interlocking system is also very important for the normal and safe operation of railway transportation.

4) DC high-voltage flexible cable DC high-voltage flexible cable is used for a variety of equipment, devices, or instruments that require DC high-voltage power cables as connections. Such as used in industrial flaw detection equipment, electron microscope, X-ray crystal instrument, electrostatic dust removal, electrostatic dressing, electrostatic painting and coating, electron bombardment furnace, electron beam welding machine, high voltage electric furnace and a series of equipment supporting cables, are of this kind.

(5) General rubber sheath flexible cable is widely used in a variety of electronic meter gas equipment, such as mobile power lines for daily electrical, electromechanical, electrical equipment and appliances, and can be used in indoor or outdoor environmental conditions. According to the mechanical external force of the cable, it is divided into light, medium and heavy three categories in structure.

(5-a) Cable for welding machine Welding machine cable is working under low voltage and high current conditions, to have a certain heat resistance, softness, a certain oil resistance, solvent resistance, wear resistance and so on.

(5-b) Flat cable for submersible pump Flat cable for submersible pump is used for AC voltage 500V and below, rubber insulated rubber sheathed flat cable for submersible motor.

(6) Elevator cable Elevator cable is mainly used for the power control of the elevator moving up and down in the elevator staircase room. The cable moves up and down with the elevator and bends frequently, which requires good cable bending performance. The cable is laid vertically, and the cable should have a strengthening core to make it have a certain tensile strength. The working environment of the cable has oil pollution and fire protection requirements, and the cable flame retardant performance.

(7) Locomotive and vehicle cable Locomotive and vehicle with a variety of power supply devices, cables used in the rated voltage of 750V and 1500V and 3000 V and below the internal combustion engine and electric vehicle electrical equipment. The AC voltage of communication and broadcasting lines is below 200V.

(8) Oil and geological exploration cables This kind of cable is a special cable in the cable, the use of harsh environment, special manufacturing, more difficult, high requirements, products often use a variety of disciplines. For example, as the depth of oil drilling increases, the temperature rises, the pressure increases, and the mechanical load increases, which puts forward considerable requirements on the mechanical, electrical, weight, geometric size and other aspects of the product.

The petroleum industry, geological exploration (including Marine exploration, etc.) itself incorporates the achievements of modern science. Such as electronic computers, digital technology, optical fiber communication, Marine biology, space remote control technology and so on.

(9) Cables for nuclear power plants The cables used in nuclear power plants have different special performance requirements according to the different areas where they are used. High-temperature and high-radiation cables used in the nuclear island, high-temperature and medium-radiation cables used near the nuclear island, and low-radiation room temperature cables used near the conventional island. All cables must be low smoke halogen-free flame retardant and non-corrosive gas requirements. (There are IE class K1 and K3 class two)

(10) Locomotive and vehicle cables according to the installation site, there is no mineral oil and fuel oil pollution; Having mineral oil but not contaminated by fuel oil; There are three cases of mineral oil and fuel oil pollution, and there are different requirements for use, such as control cables, communication cables, instrument cables, etc

11) Compensation wire

The compensation wire is suitable for connecting pyrometer to thermocouple galvanometer. The conductive wire core adopts various alloy combinations according to the need of thermocouple temperature measurement. Insulation and sheath general varieties of PVC or nitrile polyvinyl chloride composite, heat-resistant varieties of fluorine plastic or glass wire wrapped composite structure. There are two types of wire structure: general structure and soft structure, soft wire is suitable for mobile equipment connection, and general structure is used for fixed laying.

(12) Wire and cable other kinds of special wire and cable are suitable for special occasions

Such as kV level overhead insulated cables, single-core intermediate frequency coaxial cables, photographic light source flexible cables, low-voltage frequency conversion tape cables, electronic computer cables and so on.

Qingdao Tianxing Cable Co., Ltd. focuses on the production of customized wire and cable manufacturers, main: fire wire and cable, power cable, control cable and other products, exported to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable. Hotline: 16678668098