Why measure the surface temperature of the cable in operation?

The temperature of the cable is closely related to the load, but only checking the load can not ensure that the AAAC Cable is not overheated (1) the thermal resistance coefficient and side-by-side correction coefficient used in calculating the allowable ampacity of cables may be different from the actual situation. (2) when choosing cables to … Read more

Choose the wire and cable, quickly identify the type!

The main function of wire and cable is to transmit electric energy, signal and realize electromagnetic conversion. The transmission of electric power, such as power cable, overhead line, etc., is the same as shaft ABC Cable, and the wire with electromagnetic conversion is like paint wrapped wire. If you choose a wire or cable, you … Read more

How to select cable label

AAAC Cable label is an identification mark used in field installation and after maintenance. The purpose of cable identification is Ensure the organization and correctness of installation And the convenience of maintenance and inspection later. This paper is to share the purpose, characteristics and how to choose cable label for you. Application and characteristics of … 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

Discussion of the cable production process: conductor stranding

Discussion on the cable production process: conductor twisting and twisting : the process of twisting many small diameter monofilaments into a large cross-section conductive core according to certain rules. 1. There are two types of twisted wires: normal twisted wires and irregular twisted AAC Cables. Ordinary strands can be divided into ordinary concentric single stranded … Read more

Discussion on cable process: cable forming

1、 What is cable formation Definition of cable forming: the process of twisting multiple insulated cores into AAC Cables according to certain rules. 2、 The role of cable forming in cable production Cable forming is one of the important processes in the production of multi-core cables. The three core, four core (one core is the … Read more

Conductor outer diameter in selecting and purchasing wires and cables

With the development of national economy, urban construction is becoming more and more prosperous, and the market demand for decoration cloth and wire products is strong. Cloth and Wire Manufactor products belong to CCC compulsory certification products. Domestic manufacturers implement the national standard GB / T 5023-2008 when producing. Manufacturers must send the products to … Read more

Recommendations for BTLY cable cross-section selection

1. Select the cross section according to the temperature rise of the core When the load current is passed, the core temperature does not exceed the long-term working temperature allowed by the cable insulation. That is to say, select according to the allowable current-carrying capacity. Suggestion: The cable passes through different heat dissipation conditions. The … Read more

Advantages of BTTZ rigid mineral insulated cable

Due to the special structure of BTTZ rigid mineral insulated cables, it has some characteristics different from traditional cables; it is also the most superior fire resistance characteristic of mineral insulated cables. Advantages of BTTZ rigid mineral insulated cable 1) Completely fireproof BTTZ cable itself does not burn at all, and it will not cause … Read more