Экранированный провод из чистого никеля с ленточной намоткой
Pure nickel tape-wrapped shielded conductor wire is a precise transmission cable designed for focused electromagnetic interference protection. Its core structure is layered from the inside out: the center is a high-purity copper conductor (mostly made of oxygen-free copper to ensure current transmission efficiency), the outer layer of the conductor is wrapped with a temperature-resistant insulating layer (commonly made of polytetrafluoroethylene, cross-linked polyethylene, и т. д.), the outer layer of the insulating layer is spirally wound with continuous pure nickel tape at a specific pitch to form a shielding layer, and the outermost layer is covered with a protective sheath (such as PVC, fluoroplastics, и т. д., to enhance mechanical protection). The pure nickel tape used here is made of high-quality nickel with a purity of ≥ 99.6%, processed through precise rolling and annealing. The thickness is controlled between 0.03-0.1mm, and the coverage rate of winding can reach 90%-95%, ensuring the shielding integrity.
Outstanding shielding performance: Pure nickel tape possesses excellent magnetic shielding and electromagnetic shielding capabilities. Compared to traditional copper tape and aluminum foil shielding, it has a stronger attenuation ability for electromagnetic signals ranging from low frequency to high frequency (1kHz – 1ГГц). It can effectively prevent external electromagnetic radiation from interfering with the signal of the conductor and prevent the leakage of the conductor’s own signal, ensuring the purity of the transmitted signal.
Strong environmental stability: Pure nickel material has excellent resistance to high temperatures (long-term working temperature can reach 200-400℃, adjusted according to the sheath material), low temperatures (-60℃ or below can work stably), and corrosion resistance. It can resist the erosion of humid, acidic, alkaline media, salt fog, и т. д., is not prone to oxidation and aging, and extends the lifespan of the wire.
Excellent mechanical properties: The pure nickel tape has a tight winding structure and certain flexibility. During winding, it is not prone to breaking or wrinkling. The wire can adapt to bending, twisting, и т. д.. installation scenarios. В то же время, the bonding degree between the shielding layer and the insulation layer, the sheath is high, and its tensile strength and wear resistance are superior to ordinary wrapped shielding wire.
Good compatibility: The shielding layer is a good conductor and can be directly used as a grounding wire, simplifying the wiring structure. It has strong adaptability to different insulating and sheath materials and can customize the conductor cross-section (0.5 – 10mm²), winding pitch, and sheath color according to the application scenario to meet diverse needs.
Signal protection: In precision electronic equipment, instruments, and communication systems, it can block electromagnetic interference (ЭМИ) generated by motors, frequency converters, and radio frequency equipment, preventing signal distortion and errors, ensuring the accuracy and stability of data transmission. Например, in medical equipment, it can ensure the precise collection of detection signals.
Security guarantee: The shielding layer can limit the electromagnetic radiation leakage from conductors within a specified range, reducing the radiation impact on surrounding sensitive components and the human body. В то же время, it can assist in guiding current during circuit short circuits, enhancing the safety of equipment power usage.
Environmental adaptability: In extreme conditions such as high temperatures, low temperatures, humidity, and corrosion (such as in aerospace, industrial automation, and new energy equipment), it can protect the internal conductors from environmental damage, maintain the transmission performance of the wires, and ensure the continuous and stable operation of the equipment.
Lengthen equipment lifespan: By reducing the loss of equipment internal components due to electromagnetic interference, lowering the occurrence rate of equipment failures, and indirectly extending the lifespan of the entire system, it also reduces maintenance costs.
Material properties: Проводник – бескислородная медь. (purity ≥ 99.99%), Экранирующий слой представляет собой полосу из чистого никеля. (purity ≥ 99.6%), insulation layer can be selected as polytetrafluoroethylene (ПТФЭ) или сшитый полиэтилен (СПЭ), and the sheath can be PVC or fluoroplastics (ФЭП/ПФА);
Электрические свойства: Номинальное напряжение 0,6/1 кВ, сопротивление изоляции ≥ 100 МОм・км, затухание при экранировании ≥ 80 дБ (1ГГц), Сопротивление проводника постоянному току соответствует GB/T 3956 стандартный;
Mechanical properties: Curvature radius ≥ 10 times the outer diameter of the cable, tensile strength ≥ 15MPa, elongation at break ≥ 150%;
Environmental properties: Working temperature range – 60℃~200℃ (fluoroplastics sheath can reach – 60℃~260℃), resistant to salt spray, масло, and acid-base corrosion;
Specification properties: Сечение проводника 0,5-10 мм², core number 1-24 cores, shielding layer wrapping coverage 90%-95%, Внешний диаметр кабеля 3-20 мм.
Pure nickel tape-wrapped shielded conductor wires, with their outstanding electromagnetic shielding performance, environmental stability, and flexible customization advantages, have become the core transmission components in high-end fields such as precision electronics, industrial control, aerospace, and new energy. They not only solve the signal transmission problems in complex environments but also provide reliable guarantees for the safe and efficient operation of equipment. They are the key wire choices for enhancing system performance and stability.
