How to distinguish the rigidity or flexibility of mineral insulated cable

The structure of mineral insulated ABC Cables with different names is convenient for us to design and select better, and there is no confusion about many naming rules. What are (rigidity) and (flexibility)? For a long time, the domestic mineral insulated cables are divided into two types: rigidity and flexibility. The internationally used magnesium oxide … Read more

What should be paid attention to when storing wire and cable reel?

Attention should be paid to the following points when storing and transporting wires and AAAC Cables on shelves: 1、 In storage, first of all, it is forbidden to contact with acidic, alkaline and corrosive substances and store them separately. Insulated wires and cables should be stored in a dry and ventilated warehouse. The suitable temperature … Read more

Cable fault detection and search method, you should understand

For direct short circuit or broken cable fault, the multimeter can be used to measure and judge directly; For non direct short circuit cable fault and grounding AAC Cable fault, the insulation resistance between cores or insulation resistance between cores to ground can be measured by megohmmeter, and the type of cable fault can be … Read more

Teach you to choose high quality wire through insulating layer!

There are many types and sizes of wires on the market. In addition, there are many kinds of inferior wires manufactor. Many consumers don’t know where to start when choosing wires. We shared the general selection points before. Now let’s take a closer look at the simple and important aspects of insulation. Why is it … Read more

Analysis of the causes of insulation breakdown of wires and cables

Breakdown refers to the damage of the original insulation function caused by external force damage, (extrusion, lightning stroke, etc.) of the insulation layer, aging of insulation data, etc., and the original insulation function is lost. During the operation of the AAC Cable, the core wire is discharged from the core to the core wire, the … Read more

The relationship between the rated voltage of cable and the number of cable cores

1、 Selection conditions of 1-5-core cable for 1kV and below (1) Single core cable When the line is long and the working current is large, or when it is laid under water, in order to avoid or reduce the intermediate joints, or when the single core AAC Cable has better comprehensive technical economy than the … Read more

Suggestions on the development of power cable industry

Based on the large demand of medium and low voltage Cable Manufactor in China, the manufacturing level and equipment level of cable industry, the new product technology and the gap with the international advanced level, the following suggestions are put forward for the follow-up development: One is the standard of medium and low voltage power … Read more

Discussion on cable production process: extrusion process

Extrusion process is an indispensable part in cable manufactor, which includes insulation and sheath production process. Insulation production methods include coating, winding, extruding and their combination. Now the main insulation production is coating (winding wire, no longer in the scope of production license management) and extrusion (wire and cable). 1、 Plastic extrusion equipment and mould … Read more