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Jiangsu Silver& Tin Thread Hi-temperature Wire and Cables Co., Ltd.
High-Voltage Cables Custom

High-Voltage Cables Manufacturer

Applications: Suitable for high-voltage power transmission in power plants, substations, transmission lines, and large industrial equipment. This product covers scenarios such as urban power grids, interregional power transmission, and renewable energy grid integration. It handles long- and short-distance transmission of high-voltage (typically 1kV and above) electricity.
Features: Its core function is to safely and efficiently transmit high-voltage power. Through its insulation and shielding design, it controls the high-voltage electric field, preventing power leakage and external interference, and ensuring stable operation of the power system.
Core Performance: The insulation layer has high voltage resistance to withstand high electric-field stress; the conductor is made of a highly conductive material to reduce transmission losses; and it also has high mechanical strength and environmental resistance (temperature, corrosion, and aging).
Product Highlights: Its high transmission capacity meets the needs of large-scale power transmission; its stable insulation performance provides high operational reliability and reduces failure risk.

About Us
Jiangsu Silver& Tin Thread Hi-temperature Wire and Cables Co., Ltd.
Jiangsu Silver& Tin Thread Hi-temperature Wire and Cables Co., Ltd., is China High-Voltage Cables Manufacturer and High-Voltage Cables Factory, founded in Taizhou, Jiangsu Province in 1994, successfully registered the "Yuanzhi" trademark in 2002. The company specializes in the production and R&D of high-quality high-temperature cables. Its products primarily use Teflon, silicone rubber, flame-retardant polyethylene, and fire-resistant mica tape as insulation materials, and pure nickel, silver-plated, nickel-plated, tin-plated, and oxygen-free bare copper wire as conductors. The production process involves more than twenty steps, including wire bundling, cabling, stranding, extrusion, rubber extrusion, shielding, braiding, and coating. The company manufactures nearly a thousand specifications across eight major series, including cables for electrical equipment, control systems, signal transmission, computers, compensation, fire resistance, high and low temperature resistance, and high voltage resistance. Currently, it has the production capacity for conductor cross-sections up to 400mm², voltage up to 100kV, and temperature ratings from -65°C to +1200°C.
Our company's products are manufactured according to advanced international and national standards. Its garden-style production base has passed ISO9001 quality management system certification and is a "Comprehensive Quality Management Standard Compliance" enterprise certified by the Ministry of Agriculture. Our products have received CCC quality certification, UL safety certification (USA), and have been recognized as a "Famous Product of Township Enterprises in Jiangsu Province." They have passed the full sampling inspections conducted by the National Wire and Cable Testing Center, the Provincial Quality Supervision and Testing Center, and the Taizhou Municipal Bureau of Quality and Technical Supervision. Listed as a "Key Protected Product of Taizhou City," our products are used by large enterprises like Chunlan and high-tech fields such as the 95856th Unit of the Ministry of Aerospace Industry. Some products are exported. To further demonstrate our commitment to providing peace of mind to our customers, our products have been insured with the People's Insurance Company of China for many years. We are a company that "honors contracts and keeps promises."
Our company will continue to adhere to the quality policy of "meticulous quality control, unwavering commitment to customers, and technological advancement for enterprise development," with "customer satisfaction" as our guiding principle, and comprehensively expand the "Yuanzhi" business.

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High-Voltage Cables Industry knowledge

In electric vehicles, medical X-ray equipment, semiconductor manufacturing, and industrial microwave systems, high-voltage (HV) cables carry the critical task of transmitting thousands or even hundreds of thousands of volts. Unlike standard wiring, the R&D of HV cables centers on dielectric strength, partial discharge control, and long-term insulation stability. Jiangsu Silver & Tin Thread Hi-temperature Wire and Cables Co., Ltd. produces a specialized range of high-voltage cables designed to handle high voltage, high heat, and space-constrained environments.

For high-voltage systems engineering, insulation uniformity and anti-corona performance are the definitive benchmarks for cable longevity. Our "Yuanzhi" brand HV cables utilize high-performance Silicone or modified Fluoroplastics, maintaining superior electrical integrity across voltage ratings from 1kV to 100kV+ and withstanding temperatures from -60°C to +200°C.

Material Performance Matrix: Silicone vs. Fluoroplastic HV Cables

The choice of insulation material dictates the reliability of the cable based on installation conditions and electrical frequency:

Technical Metric Silicone HV Wire Fluoroplastic (Teflon) HV Wire
Voltage Rating High (Ideal for HV pulses) High (Low dielectric constant)
Flexibility Superior (Highly flexible) Moderate (Rigid material)
Chemical Resistance Good Excellent (Acids/Alkalis/Solvents)
Typical Use EV Motors, Medical Imaging Aerospace, Ignition, Labs

Core Engineering Advantages: Breakdown Protection & EMC

At Jiangsu Silver & Tin Thread, we provide systematic solutions for the safety challenges inherent in high-voltage environments.

Anti-Corona & Breakdown Resistance

High-voltage field strength can lead to partial discharges within air gaps in the insulation. Through precision extrusion, we ensure a seamless bond between the insulation and the conductor. By utilizing raw materials with high dielectric breakdown strength, we significantly reduce the risk of insulation aging caused by corona discharge.

Shielding & Static Discharge

For high-frequency HV applications, our cables feature high-density copper braid shielding. This effectively isolates strong electromagnetic interference (EMI), protecting the signal accuracy of nearby precision instruments and providing a rapid discharge path to ground in the event of a fault.

Typical Application Scenarios

  • Electric Vehicles (EV/HEV): Connections for battery packs, drive motors, and On-Board Chargers (OBC).
  • Medical Diagnostic Equipment: HV generator connections for X-ray machines and CT scanners.
  • Vacuum & Plasma Systems: HV feedthroughs for semiconductor etching and mass spectrometry.
  • Power Electronics & Lasers: Internal wiring for HV power modules, laser cutters, and transformers.

Why Trust Jiangsu Silver & Tin Thread?

Founded in 1994, Jiangsu Silver & Tin Thread Hi-temperature Wire and Cables Co., Ltd. holds over 30 years of R&D expertise. As an IATF 16949 and ISO9001 certified manufacturer, we provide both standardized cables and customized HV connection systems.

Our HV cable series comply with UL, CE, CCC, and RoHS international standards. Every batch undergoes rigorous submerged voltage endurance and insulation resistance testing. Backed by global insurance from PICC, we provide a solid safety foundation for your industrial projects.

High-voltage Cable Industry FAQ

1. What is Partial Discharge (PD)?

PD is a localized electrical discharge that occurs within gaps or impurities in the insulation. Over time, it creates ozone and heat, carbonizing the insulation and leading to eventual breakdown. High-quality HV cables eliminate PD through high-precision manufacturing.

2. Why is Silicone rubber ideal for HV cables?

Silicone offers excellent dielectric strength and anti-corona properties. Even if surface tracking occurs, its residue is non-conductive silicon dioxide. Its flexibility also allows for tight bends in compact equipment.

3. How do I judge the effectiveness of the shield?

Shielding effectiveness depends on braid density. For precision applications, a density of 85% or higher is typically required. The shield must be properly grounded to prevent it from becoming a dangerous source of accumulated charge.

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