Pre-terminated Copper Backbone Cable Selection Guide

In modern communication and power transmission systems, pre-terminated copper backbone cables play a crucial role. This guide will provide you with a comprehensive guide to selecting pre-terminated copper backbone cables, including technical specifications, application scenarios, performance comparisons, and industry standards, to help you make informed choices.

Overview of Pre-terminated Copper Backbone Cables
Pre-terminated copper backbone cables refer to cables that have been pre-terminated before leaving the factory, a design that can significantly improve installation efficiency and reduce on-site construction errors. Pre-terminated copper cables are commonly used in data centers, telecommunications rooms, and other situations requiring rapid deployment and high reliability.

Technical Specifications
Conductor Material: The conductor material of pre-terminated copper backbone cables is mainly pure copper, which has good electrical conductivity and mechanical properties. The conductor structure and performance parameters of copper core cables should comply with national standards such as "Electric Copper Round Wire" GB/T3953.
Insulation Layer: The main insulation materials include PVC, polyethylene (PE), cross-linked polyethylene (XLPE), etc., which prevent short circuits between conductors and ensure the safe operation of the cable.
Sheath Layer: The sheath materials include PVC, PE, aluminum foil, etc., mainly to protect the cable from external physical damage and chemical corrosion.
Armoring Layer: The armoring materials mainly include steel tape armoring, steel wire armoring, etc., used to enhance the mechanical strength of the cable and improve its tensile, compressive, and bending properties.

Voltage Rating and Transmission Current
Copper core cables come in various voltage ratings, such as low voltage, medium voltage, high voltage, etc., each corresponding to different usage scenarios and performance requirements. Transmission current refers to the maximum current that the cable can withstand under normal operating conditions.

Laying Methods
There are various laying methods for copper core cables, such as direct burial, overhead, pipeline, underwater, etc., each of which has a significant impact on the performance requirements and service life of the cable.

Application Scenarios
Pre-terminated copper backbone cables are widely used in data centers, telecommunications rooms, industrial automation, building power supply systems, and other fields. In data centers, they are used to achieve reliable connections between servers and switches. In the construction field, they are used in power supply systems to bring power from the external power grid to the distribution rooms within the building.

Performance Comparison
Conductivity: The conductivity of copper core cables is better than that of aluminum core cables, as copper is one of the best conductors in nature.
Cost and Weight: Under the premise of the same current-carrying capacity, the cost of aluminum alloy cables is slightly higher than that of aluminum core cables and much lower than that of copper core cables. However, under the condition of the same current-carrying capacity, the cross-sectional area of aluminum core and aluminum alloy core cables is about 1.5 times that of copper core cables, and the corresponding line losses and thermal stability are also different.
Corrosion Resistance and Mechanical Properties: Copper has good ductility and strong mechanical properties, while aluminum has poor mechanical properties. When stranding, if the compression coefficient is high, the conductor will have burrs and breakage.

Industry Standards
The production and application of pre-terminated copper backbone cables should follow multiple industry standards, such as "Power Engineering Cable Design Standard" GB50217-2018, as well as "Polyvinyl Chloride Insulated Installation Wire and Cable", etc.

Summary
Selecting the appropriate pre-terminated copper backbone cable requires a comprehensive consideration of technical specifications, application scenarios, performance comparisons, cost analysis, and industry standards. Through this guide, you can gain a more comprehensive understanding of the relevant knowledge of pre-terminated copper backbone cables and choose the most suitable cable solution for your project.