Definition and Basic Composition of High-Temperature Resistant Anti-Corrosion Shielded Cables
High-temperature resistant anti-corrosion shielded cables are specially designed cables primarily used for signal transmission and power distribution in high-temperature and corrosive environments. Their definition and basic composition are as follows:
1.Definition:
High-temperature resistant anti-corrosion shielded cables are cables capable of stable operation in high-temperature and corrosive environments, featuring properties such as high-temperature resistance, corrosion resistance, flame retardancy, and anti-interference. They are widely used in industries such as power, metallurgy, and petrochemicals, particularly in harsh environments with high temperatures, corrosive gases, or liquids.
2.Basic Composition:
Conductor: Typically made of corrosion-resistant materials such as oxygen-free copper or tinned copper to ensure conductivity in high-temperature and corrosive conditions.
Insulation Layer: Uses high-temperature resistant, aging-resistant materials such as cross-linked polyethylene (XLPE) to ensure signal or current transmission efficiency and safety.
Shielding Layer: Employs tinned copper braiding or tinned copper tape shielding to effectively block electromagnetic interference and improve anti-interference capability.
Sheath Layer: Usually made of fluoroplastics (e.g., PFA, FEP) or silicone rubber, offering excellent high-temperature resistance, corrosion resistance, and oil resistance.
Armor Layer: In certain models, steel tape or steel wire armor may be used to enhance mechanical strength and tensile performance.
3.Characteristics:
High-Temperature Resistance: Wide operating temperature range, up to 260°C, and even 285°C in some models.
Corrosion Resistance: Capable of resisting acids, alkalis, oils, water, and various corrosive gases.
Flame Retardancy: Complies with the GB12666-90 standard, ensuring minimal damage in case of fire.
Anti-Interference Capability: The shielding design effectively reduces electromagnetic interference, ensuring stable signal transmission.
Specific Performance and Advantages of High-Temperature Resistance in High-Temperature Resistant Anti-Corrosion Shielded Cables
1.High-Temperature Resistance:
High-temperature resistant anti-corrosion shielded cables are made of special materials that maintain stable operation in extreme high-temperature environments. For example, some cables can operate at temperatures up to 200°C or higher, making them suitable for high-temperature industrial fields such as petroleum, chemical, metallurgy, and power. These cables undergo special material treatment, providing excellent thermal stability and resistance to aging or deformation.
2.Corrosion Resistance:
High-temperature resistant anti-corrosion shielded cables use corrosion-resistant materials such as fluoroplastics and silicone rubber, effectively resisting corrosive gases or liquids in high-temperature environments and extending service life. For instance, some cables maintain performance in environments ranging from -40°C to 260°C.
3.Stable Electrical Performance:
High-temperature resistant anti-corrosion shielded cables exhibit excellent electrical insulation properties, can withstand high voltages, reduce high-frequency losses, and ensure reliable signal transmission. Additionally, their shielding design effectively minimizes electromagnetic interference (EMI) and radio frequency interference (RFI), ensuring stable and secure signal transmission.
4.Flame Retardancy and Safety Performance:
High-temperature resistant anti-corrosion shielded cables typically use flame-retardant materials, preventing combustion even under high temperatures or fire conditions, thereby reducing fire risks. For example, some cables comply with the GB 12660-90 standard, offering superior fire resistance.
5.Mechanical Strength and Aging Resistance:
High-temperature resistant anti-corrosion shielded cables possess high mechanical strength, enabling them to withstand tensile, bending, and compressive stresses. At the same time, their outer sheath materials have outstanding aging resistance, allowing long-term use in harsh environments.
6.Wide Applicability:
High-temperature resistant anti-corrosion shielded cables are suitable for various high-temperature and corrosive environments, such as high-rise buildings, oil fields, power plants, mines, and chemical plants. Their design and material selection meet the special requirements of different industrial sectors.
Post time: Jul-30-2025