In the field of precise electronic transmission, electromagnetic interference and extreme environmental erosion are the key challenges that affect signal stability and equipment lifespan. The pure nickel tape-wrapped shielded conductor wire is a high-end transmission wire specifically developed to address these pain points. With the unique advantages of the pure nickel shielding layer, it can not only achieve full-band electromagnetic interference isolation, but also adapt to harsh conditions such as high temperatures and corrosion, providing “pure signal + environmental tolerance” dual protection for scenarios with strict requirements for transmission quality, such as aerospace, medical equipment, and industrial automation.
This cable adopts a four-layer precise structure of “core transmission – insulation protection – shielding isolation – outer layer protection”, with each layer working together to achieve high-performance transmission:
Core transmission layer: The conductor is made of high-purity oxygen-free copper (with a purity of ≥ 99.99%), and the multi-strand winding process is used to enhance conductivity and flexibility, ensuring low-loss transmission of current and signals. The conductor cross-section can be customized within the range of 0.5 – 10 mm² according to the load current requirements;
Insulation protection layer: The insulating material tightly wraps the conductor. The mainstream choices are polytetrafluoroethylene (Ptfe) or cross-linked polyethylene (XLPE), which not only can isolate the conductor from external electrical contact but also have the characteristics of high-temperature resistance and aging resistance, providing basic protection for internal transmission;
Shielding isolation layer: This is the core advantage layer of the product. Pure nickel strips with a purity of ≥ 99.6% are used in a spiral wrapping manner to cover the insulation layer. The wrapping coverage rate is 90% – 95%, forming a tight electromagnetic protection barrier. En même temps, the metallic property of the pure nickel strips can also serve as a grounding wire, simplifying the wiring;
Outer layer protection layer: The outermost sheath material can be selected as needed. PVC material is suitable for regular environments, while fluoroplastics (FEP/PFA) can further enhance temperature resistance (-60° C – 260° C), salt spray resistance, and acid-base resistance, suitable for extreme industrial scenarios.
Electrical performance: Rated voltage 0.6/1kV, insulation resistance ≥ 100MΩ・km, conductor DC resistance complies with GB/T 3956 standards, shielding attenuation ≥ 80dB (1GHz);
Material specifications: Conductor is oxygen-free copper, shielding layer is pure nickel strip (thickness 0.03-0.1mm), insulation layer can be selected as PTFE/XLPE, sheath can be selected as PVC / fluoropolymer;
Physical specifications: Conductor cross-section 0.5-10mm², number of cores 1-24, cable outer diameter 3-20mm;
Environmental tolerance: Working temperature – 60℃~200℃ (fluoropolymer sheath can reach – 60℃~260℃), passed salt spray, oil resistance, acid and alkali resistance tests.
Full-band electromagnetic protection, suitable for precision equipment: Compared with copper strips and aluminum foil shielding, pure nickel strips have an attenuation rate of ≥ 80dB for electromagnetic signals ranging from 1kHz to 1GHz. They can effectively prevent electromagnetic interference (EMI) generated by equipment such as motors and frequency converters from affecting signal transmission. For example, in medical diagnostic equipment, they can ensure accurate data collection and avoid signal distortion leading to misjudgment; in communication base station equipment, they can reduce external interference and ensure stable signal transmission.
Wide temperature resistance and corrosion resistance, suitable for extreme conditions: The pure nickel material itself has the characteristics of high-temperature resistance (long-term working temperature 200-400℃) and low-temperature resistance (-60℃ or below for normal operation). When combined with fluoropolymer sheathing, it can operate stably in acid and alkali environments in chemical workshops, high-temperature conditions of new energy equipment, and low-temperature environments at high altitudes in aerospace. This solves the problem of ordinary wire materials easily aging and breaking in extreme environments.
Flexible and durable, suitable for complex installation: The pure nickel strip winding structure is tight and has flexibility. The wire bending radius is ≥ 10 times the outer diameter, which can meet the complex wiring requirements inside the equipment. En même temps, the tensile strength is ≥ 15MPa and the elongation at break is ≥ 150%, which can resist pulling and wear during installation and use, reducing the risk of wire damage.
The pure nickel tape-wrapped shielded conductor wire is not a common transmission wire; rather, it is a “protective transmission solution” tailored for high-end scenarios. It is centered around a pure nickel shielding layer, integrating properties such as high temperature resistance, corrosion resistance, and flexibility. This design not only addresses the electromagnetic interference issues of precision equipment but also meets the usage requirements of extreme environments, becoming a crucial component for enhancing equipment stability and extending service life. It holds irreplaceable application value in high-end manufacturing and precision electronics fields.
