There are many misunderstandings in the cable industry that you do not understand. Today I will take you to explore the so-called high-voltage cable industry. (1) : The voltage reaches 10kv(kW) or more than 10kv(kW) is called a high-voltage cable. (2) : One of the most obvious features of high-voltage cables is that it has only 1-3 cores. (3) : The high voltage cable contains a colloidal insulator (magnesium oxide), outside the online core.

Power distribution box is a kind of distribution box. The power distribution box is divided into power distribution box and lighting distribution box, which are the final equipment of the distribution system. The switchgear, measuring instruments, protective appliances and auxiliary equipment are assembled in a closed or semi-closed metal cabinet or screen according to the electrical wiring requirements to form a low-voltage distribution device. The power distribution box is divided into power d

Cable is a kind of blood vessels and central nervous system, from power installation projects, traffic lines, urban traffic, communications, construction projects to general home decoration must use wire and cable. However, in the long-term use of the cable, it will be damaged by many factors, leading to the aging of raw materials, resulting in a decline in product performance, very much the aging of cable sheath raw materials may lead to common problems, and even lead to safety accidents. There

Live construction or home improvement will use wire and cable, commonly used wire BVJ single-core hard wire and BVR single-core flexible wire, that BYJ is what wire Ni? What is the difference with BVJ and BVR wires?

Low-voltage cable structure: composed of three parts: core, insulation layer and protective layer. The wire core is used to conduct current and is generally twisted by multiple strands of copper wire or multiple strands of aluminum wire. Low voltage cable has single core, double core, three core, four core and so on. Two-core cables are used for single-phase lines, three-core and four-core cables are used for three-phase three-wire lines and three-phase four-wire lines, respectively, and single-

First, what is flame retardant cable: flame retardant cable refers to the cable that under specified test conditions, the sample is burned, and after removing the test fire source, the spread of the flame is only within a limited range, and the residual flame or residual burn can extinguish itself within a limited time. The basic characteristics are: in the case of fire, it may be burned out and cannot run, but it can prevent the spread of the fire. Generally speaking, in case of fire, the wire