Fire-retardant design of power cables in subway construction

With the acceleration of modernization, my country’s wire and cable industry is also rising. However, in the current vigorous development of the industry, my country’s per capita consumption of wires and cables is low, and counterfeit and inferior products on the market are prevalent. All have restricted the healthy development of the wire and cable … Read more

Frequency Conversion Cable Structure Design

The energy saving effect of frequency conversion device is very obvious, the use of frequency conversion speed regulating motor in high power motor, the whole generator set can save 30% electricity. And after the use of frequency conversion speed regulation, the soft start of the motor is realized, so that the motor works smoothly, the … Read more

Cable Quality Defects and Their Elimination Methods

The crosslinking degree (thermal elongation) is not acceptable If the crosslinking degree is not up to the standard, the thermal and mechanical properties of the cable are not qualified and can not meet the requirements of the working temperature of 90℃. The reasons for the unqualified crosslinking degree are as follows: first, the formula is … Read more

International Advanced Level of Environmental Protection Wire and Cable Indicators

Environmental protection wire refers to the material is environmental protection wire. The material includes insulating material, conductor material and shielding material. Insulation such as PVC, irradiated cross-linked PVC (XL-PVC), irradiated cross-linked polyethylene (XL-PE), low smoke free (Halogen-free), silicone rubber, Teflon Telflon and so on. The environmental protection of insulation materials is mainly the EU’s RoHS … Read more

The Advantages of Copper Cable and Aluminum Cable

We all know that copper and aluminum are the main materials of wire and cable, so who knows what advantages copper cable and aluminum cable have? 1.Low resistivity: the resistivity of copper-core cable is 1.68 times lower than that of aluminum-core cable, with less energy consumption. 2.Good ductility: the extension rate of copper for electrical … Read more

The discrimination of flame-retardant cables

Nowadays, electricity is used more and more frequently, and life is inseparable from electricity. Today, the editor brings you a mine-used flame-retardant cable worthy of trust in mines. Advantages and disadvantages of mine flame retardant cables The characteristic of flame-retardant cable is to delay the spread of flame along the cable so that the fire … Read more

Test method for flame retardant performance of cable materials

Most polymer materials are flammable and combustible materials. They have a large heat release rate during combustion, high calorific value, fast flame propagation speed, difficult to extinguish, and sometimes produce dense smoke and toxic gases, which cause huge damage to people’s lives and the environment. harm. Today we will introduce in detail the three common … Read more

There are so many types of cables, how can I remember them?

Each industry has skills and shortcuts for each industry, so in the wire and cable industry, how to remember the problem of cable models is a skill of the industry. Only those who are knowledgeable can remember, and those who don’t understand can learn and understand. There are many specifications and models of power cables, … Read more