How to classify wire and cable?
Yanggu Haohui cable tell you how to classify wires and cables?
China's wire and cable products are divided into five categories according to their use:
1. Bare wire: refers to products with only conductors and no insulation layer, such as LJ,TJ,LGJ,(JL/G), etc.
2. Winding wire: a wire used to cut magnetic lines of force in a magnetic field in the form of a winding to induce a current or to generate a magnetic field through a current. Therefore, it is called electromagnetic wire, which includes enameled wire and winding wire with various characteristics.
3. Power cable: a cable product used to transmit and distribute large functional electric energy in the main line of the power system. The basic structure of the power cable is composed of four parts: core (conductor), insulation layer, shielding layer and protective layer
4, communication cable and communication cable: transmission of audio and audio above all kinds of telecommunications information with wire and cable products, including the city communication cable, long-distance symmetrical cable and the same column (trunk) communication cable. Communication cable is optical fiber (optical fiber) as a light wave transmission medium, information transmission, so also known as fiber optic cable. Because of its small transmission attenuation, frequency bandwidth, light weight, small diameter, not subject to electromagnetic interference and other characteristics, communication cable has gradually replaced the communication cable.
5. Wires and cables for electrical equipment: from the power distribution point of the power system to directly transmit electric energy to the power connection lines of various electrical equipment. Wires and cables for electrical installation and control signals in various industrial and agricultural equipment are all in this category of products.
The above questions are answered by Shandong Yanggu Haohui Cable Co., Ltd.
Shandong Yanggu Haohui Cable Co., Ltd.Located in the capital of Dongyi, the ancient city of thousands of years, the hometown of Wu Song-Shandong Yanggu Xiangguang (national) ecological industrial demonstration park. The company's leading products are:Mineral fireproof cables, PVC insulated control cables, PVC insulated power cables, XLPE insulated power cables, overhead insulated cables, aluminum stranded wires and steel-core aluminum stranded wires and cables, cross-linked polyolefin insulated wires and cables, high-life wires and cables, PVC insulated unsheathed (soft) cables and wiresand other series of products,
What are the main points of purchasing wires and cables? Let's take a look. As the main carrier of power transmission, wire and cable are widely used in electrical equipment, lighting circuits, household appliances, etc. Its quality directly affects the quality of the project and the safety of consumers' lives and property. There are many wire varieties on the market, and appropriate wires should be used according to their own power load.
What are the precautions for wires and cables? Let's take a look. Common cable faults: wire surface markings-according to national standards, the wire surface should have continuous markings of the manufacturer's name, product model and rated voltage. This helps to find the manufacturing plant in time when there is a problem during the use of the wire, and consumers should pay attention to this when buying the wire.
There are many kinds of wire and cable products for electrical equipment on the market, which are difficult for ordinary consumers to distinguish. So what are the main categories of wire and cable products? What are the product naming principles of wire and cable? The editor brings you a brief understanding of relevant content knowledge.
The wires and cables for electrical equipment are mainly used for internal or external connection of electrical equipment, low-voltage transmission lines and various electrical signal transmission lines. Generally speaking, except for power cables, communication cables and magnet wires, most insulated wires and cables are classified as wires and cables for electrical equipment.
Electrical equipment with wire and cable is a large class of wire and cable products, a wide range of applications, many varieties, many series, large output, process type complex. The rated voltage of wires and cables for electrical equipment is low, and the working voltage is 450/750v and below, which is not more than 0.6/1kv. The working voltage of signal and instrument cables is usually 300/500v and below. The ampacity of the cable is determined according to the requirements of the cable.
Low voltage power cable winter pay attention to matters? As the weather gets colder and colder, manufacturers of low-voltage power cables usually become more difficult, which brings inconvenience to construction. Here are some precautions for winter construction. Let us take a brief look.