What Are The Types Of Wires?

1. Category by application field

According to their main purposes, cables for electrical equipment/electronic devices are divided into power engineering supply lines and electrical equipment data signal coaxial cables. When transmitting power lines, the magnitude of electric EE and current is very important to the cables, and the transmission method of electrical equipment signals is very important to the power lines. Therefore, understanding the structure and function of the wire is one of the criteria for model selection.

1. Cables for power engineering

Switching power supply cables are contacts with power engineering, so they are represented by internal wiring requirements and have a direct impact on safety production regulations in various countries. When choosing, the required commodities should be selected based on the relevant laws and regulations on production safety.

Electronic devices such as electronic computers and data converters have various levels of electrical characteristics regulations for cables. Wires and cables between electronic and computer peripherals are important power supply circuits for transmitting signals. Please complete the following categories:

a. The machine room must be equipped with the required electrical characteristics to connect the data signal

b. Anti-impact precautions (shielding, Category 5 twisted pair, etc.)

c. Have a certain degree of activity (good for wiring in small places)

2. According to the rated value of ambient temperature and rated current category

"Rated ambient temperature" refers to the phenomenon temperature that will not cause ultra-low temperature aging and continuous high temperature softening and deterioration. It varies depending on the material of the insulating layer. Generally, the application environment temperature is recorded in the information of new products, please distinguish according to this. Please note that it cannot be used under temperature.

"Rated current" refers to the applied working voltage that will not cause damage to the insulation and can be used continuously. Cables of 600V, 300V and below 100V are generally used for "connection of equipment in the cabinet" and "connection between cabinets" and "connection between cabinets" and 100V or less. Please refer to the materials of each new product for the specific content of the description of the working voltage.

3. Selection of relevant wires

When selecting cables for electrical equipment/electronic devices, please fully consider the working voltage, current size, main and tributary currents, communication and many other criteria before selecting. However, cables for electrical equipment/electronic devices are different from electric wires and cables and communication optical cables. There are many choices, and some products are not standardized, so it is difficult to choose. It can be seen that the electrical characteristics, bending resistance, flexibility, wear resistance and other mechanical characteristics of the required wires, as well as the relevant requirements for the use scene, must be established when selecting cables, and then select cables that incorporate various specified characteristics. .

In addition, when composing with RF connectors, terminals, etc. (during the production and processing of electrode connecting wires), be sure to select cables that meet various physical requirements, such as suitable cable specifications and suitable wire production and processing diameters. .

1. Selection of size

When choosing a cable size,

a. Select the specification according to the allowable current of the wire and the load current;

b. Select specifications according to operating voltage reduction.

For example, the load and comprehensive factors of the wire must be considered. For example, the shorter the time of the cable, the lower the operating voltage, so there are more cable specifications that can be selected according to the allowable current. On the contrary, if the cable is too long, the working voltage will be greatly reduced, and the size of the cable needs to be increased.