How to choose the cable?

Published on:

2022-09-29

Wires and circuits are hidden projects, and even small hidden problems can cause serious safety accidents. Therefore, before laying the wiring, we should be well prepared. For example, when choosing wires and cables, we need to determine the right cables based on various considerations. There are so many types of wire and cable, how do we choose them?

1. Selection of wire and cable models

(1) When choosing wire and cable, consider the use, laying conditions and safety.

(2) according to the use of different: can choose power cables, overhead insulated cables, control cables, etc..

(3) According to different laying conditions, you can choose general plastic insulated cable, steel belt armored cable, steel wire armored cable, anti-corrosion cable, etc..

(4) according to the safety requirements, can choose flame retardant cable, low smoke halogen-free cable, fire-resistant cable, etc..

2. Selection of wire and cable specifications

(1) in determining the use of wire and cable specifications (conductor cross-section), should consider heating, voltage loss, economic current density, mechanical strength and other conditions.

(2) Due to the large load current of low-voltage power lines, generally first select the cross-section according to the heating conditions, and then check the voltage loss and mechanical strength.

(3) As the low-voltage lighting line requires high voltage level, the section can be selected first according to the allowable voltage loss condition, and then check the heating condition and mechanical strength.

(4) For high-voltage lines, the cross section is first selected according to the economic current density, and then the heating conditions and allowable voltage loss are checked.

The cable is usually a rope cable consisting of several groups or sets of conductors (at least two in each group). Each group of conductors is insulated from each other and usually twisted around the center. The whole is covered with a highly insulated covering. Most of them are installed in the air or installed underground or underwater for telecommunications or power transmission.

Although there are many factors to consider when choosing a cable, one thing that should never be overlooked is the quality of the wire and cable. The quality of wire and cable directly affects the proper operation of a circuit. Substandard wire and cable not only affects the use, but also directly endangers our lives. Therefore, we must choose high-quality cables with quality assurance.

Today, more and more manufacturers sell cables. If you want your cables to work better, you will have a good advantage in terms of professional safety. You must know the quality standards of the various manufacturer brands and determine the specific needs during the actual application. Only then will you be able to choose the right brand and naturally use better quality?

First of all, do not blindly go for cheap. If you want the cable you buy to present the results of use, you must make sure that the quality of use of the cable is up to standard and that the stability and functionality of the cable needs to meet industry requirements. Only in this way can you ensure that the cable you buy will avoid all kinds of accidents. If you choose a cheap cable of very poor quality, naturally, all kinds of safety hazards will easily appear.

Secondly, you need to find out if the manufacturer's brand has better public recognition, as well as other consumer customer reviews and word of mouth to determine if the brand has better advantages. As there are more and more wired brands and different brands have different characteristics, people will inevitably feel very torn and confused when choosing. If they want to achieve a better standard of use, then it is necessary to fully measure the reputation and reviews of different brands.

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图片ALT信息： Yunnan Qianlie Cable Co., Ltd.

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