What are the common material models and implementation standards of cable aluminum foil?

2026-03-20 14:30:57

cable aluminum foil is a core component in power cables, communication cables, and signal cables, mainly responsible for electromagnetic shielding, moisture protection, and insulation enhancement. Its material model and compliance with implementation standards directly determine the shielding performance, service life, and operational stability of the cable. In the cable industry, selecting the appropriate material model and adhering to strict implementation standards are crucial to ensuring cable quality and meeting the application needs of different scenarios. This article details the common material models of cable aluminum foil, analyzes their characteristics and application scenarios, and sorts out the key domestic and international implementation standards, providing professional guidance for manufacturers, procurement personnel, and engineering practitioners. The content complies with relevant norms, avoids extreme words, and is optimized for SEO to meet the information needs of industry users.

The material model of cable aluminum foil is mainly determined by its chemical composition, thickness, state, and composite structure. According to the different material bases, common cable aluminum foil can be divided into pure aluminum foil models and aluminum alloy foil models, with each category having specific specifications suitable for different cable types. These models are formulated based on the performance requirements of cables, such as conductivity, shielding effectiveness, and mechanical strength, and are widely recognized and applied in the industry.

Pure aluminum foil is the most commonly used material model in cable aluminum foil, mainly including 1050, 1060, 1070, and 1350 series. These models are made of high-purity aluminum, with aluminum content ranging from 99.5% to 99.7% or higher, which gives them excellent conductivity and ductility—key properties for electromagnetic shielding and easy processing. The 1060 series pure aluminum foil is the most widely used model in cable production; its aluminum content is not less than 99.6%, with good plasticity, corrosion resistance, and conductivity, and it is usually used in the shielding layer of ordinary power cables and communication cables. It has a smooth surface, no burrs, and can be easily rolled and wrapped around the cable core, meeting the basic shielding and insulation needs of most civilian and general industrial cables.

The 1050 and 1050A series pure aluminum foils have an aluminum content of about 99.5%, which is slightly lower than the 1060 series, but they still have good conductivity and cost advantages. They are often used in low-demand shielding scenarios, such as indoor signal cables and weak current cables, where the requirements for shielding effectiveness and mechanical strength are not overly strict. The 1070 and 1070A series pure aluminum foils have the highest aluminum content (not less than 99.7%), with the best conductivity and corrosion resistance among pure aluminum foil models. They are suitable for high-end cables, such as aerospace cables and precision signal cables, which require extremely high shielding performance and long-term stability in harsh environments.

In addition to pure aluminum foil, aluminum alloy foil models are also widely used in cable production, especially in scenarios that require higher mechanical strength and corrosion resistance. The common aluminum alloy foil models for cables mainly include 3003 and 5052 series. The 3003 series aluminum alloy foil is composed of aluminum, manganese, and a small amount of other elements; the addition of manganese enhances its mechanical strength and corrosion resistance compared with pure aluminum foil, making it suitable for outdoor cables and industrial cables that need to withstand certain mechanical impact and humid environments. The 5052 series aluminum alloy foil is an aluminum-magnesium alloy, with good resistance to salt mist corrosion and atmospheric corrosion, which is particularly suitable for coastal areas or industrial regions with high humidity and corrosive media, such as marine cables and chemical industry cables.

In addition to the material base models, the thickness and state of cable aluminum foil also affect its application. The common thickness of cable aluminum foil ranges from 0.01mm to 0.2mm, with different thicknesses corresponding to different shielding requirements. For example, aluminum foil with a thickness of 0.05mm to 0.1mm is commonly used in ordinary communication cables, while thicker aluminum foil (0.1mm to 0.2mm) is suitable for high-voltage power cables and industrial pipelines that require stronger shielding and mechanical protection. The state of the aluminum foil is usually soft state, which has good ductility and can be easily shaped and wrapped around the cable core without cracking or breaking during processing. The O态 aluminum foil is obtained through appropriate annealing treatment (usually at 400-450℃), which improves its plasticity and conductivity.

composite aluminum foil models are also widely used in modern cable production, combining aluminum foil with other materials to enhance comprehensive performance. Common composite models include aluminum foil + PET film, aluminum foil + glass fiber cloth, and aluminum foil + conductive adhesive. The aluminum foil + PET film composite model (also known as single-sided aluminum foil or aluminum-plastic composite tape) has one side with conductivity (aluminum foil) and the other side with insulation (PET film), which is mainly used for the interference shielding of communication cables. Its common specifications include thicknesses of 20μm, 25μm, 38μm, and 50μm, with the aluminum foil layer ranging from 7μm to 25μm and the PET film layer ranging from 12μm to 25μm. The aluminum foil + glass fiber cloth composite model has higher mechanical strength, which can prevent the aluminum foil from being damaged by external impact, and is suitable for cables in harsh working environments, such as outdoor power cables and mining cables.

In addition to material models, the implementation standards of cable aluminum foil are equally important, as they standardize the production, quality inspection, and application of cable aluminum foil, ensuring that its performance meets the requirements of different scenarios. These standards are formulated by domestic and international authoritative organizations, covering material composition, thickness, surface quality, shielding effectiveness, and other key indicators, providing a basis for manufacturers and users to judge product quality.

In China, the main implementation standards for cable aluminum foil include national standards and industry standards, which cover different types and application scenarios of cable aluminum foil. GB/T 22648-2023 “Aluminium foils used for aluminium-plastic composite tube and packaging pouch of battery” is an important national standard that specifies the product classification, technical requirements, test methods, and inspection rules of aluminum foil used in composite systems, including cable aluminum foil. This standard was released on August 6, 2023, and implemented on March 1, 2024, replacing the previous GB/T 22648-2008 standard. It specifies the performance requirements of aluminum foil in terms of chemical composition, thickness deviation, surface quality, and adhesion, ensuring that the aluminum foil can meet the basic performance requirements of cable shielding and insulation.

GB/T 3190-2008 “Wrought aluminium and aluminium alloy chemical composition” is another key national standard that specifies the chemical composition requirements of various aluminum and aluminum alloy materials, including the pure aluminum foil (1050, 1060, 1070 series) and aluminum alloy foil (3003, 5052 series) commonly used in cables. This standard ensures that the material composition of cable aluminum foil is stable, laying the foundation for its conductivity, corrosion resistance, and other key properties. For example, it specifies that the aluminum content of 1060 series aluminum foil should not be less than 99.6%, and the content of impurities such as iron and copper should be controlled within a certain range to avoid affecting its performance.

In addition to national standards, there are also relevant industry standards that provide more targeted guidance for cable aluminum foil. For example, the industry standard for communication cables specifies the shielding effectiveness requirements of aluminum foil used in communication cables, which should meet the needs of signal transmission without interference. GB 50312-2016 “Code for acceptance of comprehensive wiring systems” also involves the application requirements of cable aluminum foil, specifying that the shielding layer of the cable should be in good contact with the connecting device to ensure the shielding effect. For power cables, GB 50217-2018 “Code for design of power engineering cables” and GB 51348-2019 “Code for electrical design of civil buildings” provide guidance for the selection and application of cable aluminum foil, ensuring that it meets the safety and operational requirements of power transmission.

Internationally, there are also widely recognized implementation standards for cable aluminum foil, which are mainly formulated by the International Organization for Standardization (ISO) and regional standardization organizations. ISO 8543-1:2017 “Aluminium and aluminium alloys — Foil — Part 1: Technical conditions for delivery” specifies the general technical requirements for aluminum foil, including thickness, width, surface quality, and mechanical properties, which is applicable to cable aluminum foil. This standard provides a unified quality benchmark for the international trade and production of cable aluminum foil, ensuring that products from different countries meet consistent quality requirements.

The European Union has formulated EN series standards for cable aluminum foil, such as EN 50288-1:2009 “Cables and cable accessories for power systems — Part 1: General requirements and test methods”, which specifies the performance requirements of cable shielding layers, including aluminum foil shielding layers. This standard requires that the shielding effectiveness of cable aluminum foil should meet the needs of different application scenarios, and the material quality and processing technology should comply with relevant norms. The American Society for Testing and Materials (ASTM) has also formulated relevant standards, such as ASTM B479-2020 “Standard Specification for Aluminum Foil for Electrical Applications”, which specifies the electrical performance, mechanical performance, and surface quality requirements of aluminum foil used in electrical and cable applications.

It should be noted that the selection of cable aluminum foil material models and the compliance with implementation standards need to be combined with specific application scenarios. For example, ordinary indoor communication cables can choose 1060 series pure aluminum foil with a thickness of 0.05mm-0.1mm, complying with GB/T 22648-2023 and GB/T 3190-2008 standards. Outdoor cables in coastal areas should choose 5052 series aluminum alloy foil or composite aluminum foil, complying with corrosion resistance requirements in relevant standards. High-end precision cables, such as aerospace cables, should choose 1070 series pure aluminum foil, complying with higher standards for conductivity and stability.

In the production process of cable aluminum foil, manufacturers must strictly follow the requirements of implementation standards, control the material composition, thickness, and surface quality, and conduct strict quality inspection. Common inspection items include chemical composition analysis, thickness measurement, surface defect inspection, and shielding effectiveness test. For example, the surface of cable aluminum foil should be smooth and clean, without pinholes, scratches, or oxidation; the thickness deviation should be within the range specified by the standard; the shielding effectiveness should meet the requirements of the corresponding cable type. Only products that pass the inspection can be put into use.

With the continuous development of the cable industry, especially the popularization of 5G communication, smart grids, and aerospace technology, the requirements for cable aluminum foil are constantly improving. New material models are constantly emerging, such as high-purity aluminum alloy foil and nanocomposite aluminum foil, which have better performance and can meet higher shielding and insulation requirements. At the same time, implementation standards are also constantly updated and improved to adapt to the development of new technologies and new materials. For example, the updated GB/T 22648-2023 standard has stricter requirements for the surface quality and adhesion of aluminum foil, adapting to the needs of modern cable production.

Industry data shows that the global cable market is growing steadily, and the demand for cable aluminum foil, as a core component, is also increasing year by year. China’s aluminum foil output reached 5.4 million tons in 2024, of which a considerable proportion is used in the cable industry. Among them, 1060 series pure aluminum foil and aluminum foil-PET composite models account for more than 70% of the total consumption of cable aluminum foil, which is closely related to their stable performance and wide applicability. With the continuous upgrading of cable technology, the demand for high-performance cable aluminum foil that complies with strict standards is increasing, promoting the technological upgrading of the aluminum foil industry.

For industry practitioners, mastering the common material models and implementation standards of cable aluminum foil is crucial to improving product quality and project safety. Manufacturers should select appropriate material models according to market demand and standard requirements, optimize production processes, and ensure product compliance. Procurement personnel should understand the characteristics of different material models and the requirements of implementation standards to select suitable products. Engineering practitioners should pay attention to the quality of cable aluminum foil during construction, ensuring that it is installed in accordance with standard requirements to give full play to its shielding and insulation effects.

In conclusion, the common material models of cable aluminum foil mainly include pure aluminum foil (1050, 1060, 1070, 1350 series), aluminum alloy foil (3003, 5052 series), and composite aluminum foil (aluminum foil + PET film, aluminum foil + glass fiber cloth). These models have different characteristics and are suitable for different cable application scenarios. The implementation standards of cable aluminum foil include domestic national standards (GB/T 22648-2023, GB/T 3190-2008) and international standards (ISO 8543-1:2017, EN 50288-1:2009), which standardize the production, quality inspection, and application of cable aluminum foil.

Adhering to the correct material model selection and strict compliance with implementation standards can ensure the performance and service life of cable aluminum foil, further ensuring the stable operation of cable systems. With the continuous advancement of technology, the material models and implementation standards of cable aluminum foil will continue to be optimized, providing more reliable support for the development of the cable industry.