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Relationship between backbone cable, branch cable and distribution cable

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Relationship between backbone cable, branch cable and distribution cable

作者: Release Date: 2018-07-04 Author: Click:

Relationship between backbone cables, branch cables, and distribution cables

1. Contact:

The backbone cable refers to the cable directly connected to the power supply;

Branch cable refers to the cable that comes out of the drop box and connects to the user or each workshop;

Wiring cables are cables that are electrically connected to the distribution box.

Their role is to serve as a bridge chain from the telecommunications room to each user client.

2. Difference:

The number of trunk cables and distribution cables cannot be similar. There are one or two trunk cables. More than two branch cables are required by wire and cable manufacturers, and there should be more distribution cables. The branch cable is divided into two types: vertical branch and horizontal branch. For the vertical branch, it is mainly suitable for high-rise buildings. Generally, it is measured on site. The cable type is selected according to the level, and the cable length is selected according to the distance between the low-voltage distribution cabinet and the highest level of the branch. For the horizontal branch cable, the selection line is the same as the vertical branch, but the length of the horizontal branch cable can be longer than the trunk line. However, its cross-sectional area should be smaller than that of the main line. It should be noted that the vertical trunk line should be 3 levels higher than the branch line.

电线电缆厂家

The production of wires and cables is different from most electromechanical products. It takes length as the basic unit of measurement. All wires and cables are processed from the beginning, and structures such as insulation, shielding, sheathing, and armor are sequentially added to the conductor and then made. For wire and cable products, the more complex the structural specifications are, the more the layers are superimposed, and the higher the process complexity is.

Production process continuous superimposed combination production

The workshop equipment is reasonably discharged according to the production process, and the semi-finished products in each stage of the production process are sequentially transferred.

The production organization management must be scientific, reasonable, thorough and accurate, and the operator must strictly follow each step of the process requirements to prevent the flow of the process from being caused by a certain link error, which affects product quality and delivery time.

Throughout the entire production process, the quality management of wires and cables must be strictly controlled to improve the economic efficiency of the enterprise.

2. Many types of production processes and large material flow

The various materials required in the production of wires and cables are not only many types, varieties and specifications, but also a huge number. Therefore, each step in the production process must be reasonably arranged and dynamically managed, and the amount of materials, standby quantities and batch cycles must be verified.

3. Many special equipment

Each step of the wire and cable production process must use special equipment with clear process characteristics, such as: extruder series, wire drawing machine series, stranding machine series, winding machine series and so on.


URL of this article: http://herzheart.com/南方双彩网/397.html

Keywords: wire and cable manufacturers , Zhengzhou wire and cable , Henan wire and cable

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