UL3664 High Voltage Silicone Insulated Specialty Lead Wire – BYC Cables

Product Overview

Feature Specification
Standard UL 3664
Rated Voltage 15,000V Alternating Current (15KV Extreme High Voltage)
Temperature Range -60°C to +180°C (-76°F to +356°F)
Conductor Type Tinned Copper or Nickel-plated Copper
Insulation Material Silicone Rubber (Extra Thick Heavy-Duty Wall)
Braiding (Optional) Fiberglass Braiding
Available Colors White, Blue, Red, Black, Brown, Yellow, Green, Transparent, Yellow/Green
Applications Internal wiring for specialized high-voltage power supplies, medical imaging equipment (X-ray/MRI), and heavy industrial pulse systems.

Technical Parameter Table

Nominal Cross-section (mm2) Conductor Construction (Number / Diameter in mm) Conductor Diameter (mm) Insulation Thickness (mm) Finished Outside Diameter (mm) Maximum Conductor Resistance at 20°C (68°F) (Ohm/km)
1.5 30 / 0.25 1.58 3.4 8.5 13.7
2.5 49 / 0.25 2.02 3.4 8.9 8.21
4 56 / 0.30 2.59 3.4 9.5 5.09
6 84 / 0.30 3.6 3.4 10.5 3.39
10 84 / 0.40 4.8 3.4 12.0 1.95
16 126 / 0.40 5.9 3.4 13.5 1.24
25 196 / 0.40 7.3 3.4 16.5 0.795
35 276 / 0.40 9.2 3.4 18.1 0.565
50 396 / 0.40 11.0 3.4 19.5 0.393
70 556 / 0.40 12.8 3.4 21.5 0.277
95 751 / 0.40 14.9 3.4 23.5 0.210
120 956 / 0.40 16.3 3.4 25.0 0.164
185 1473 / 0.40 20.8 3.4 29.0 0.102
240 1910 / 0.40 23.2 3.4 33.0 0.0817

Professional Performance Features

  • Extreme Dielectric Integrity: Specifically engineered with a specialized extra-thick silicone wall to withstand intense voltage stress up to 15,000V Alternating Current. This construction prevents insulation breakdown and ensures absolute safety in medical and industrial high-voltage environments.
  • Exceptional Thermal Stability: This wire maintains its physical flexibility and electrical properties across a wide thermal spectrum, ranging from cryogenic sub-zero environments at -60°C (-76°F) to constant high-heat industrial zones up to +180°C (+356°F).
  • Advanced Conductor Protection: By utilizing high-quality Tinned Copper or Nickel-plated Copper, the conductor remains highly resistant to environmental oxidation and chemical corrosion, providing long-term reliability in high-humidity or high-temperature power systems.
  • Optimized Pliability: Despite the heavy-duty insulation required for 15KV ratings, the flexible silicone material and high-strand count stranding allow for a manageable bend radius, facilitating easier installation in complex medical imaging gantries and industrial cabinets.
  • Environmental & Chemical Resistance: Fully resistant to ozone, UV radiation, moisture, and aging. The modified silicone jacket also provides excellent protection against various industrial fluids and ensures a long operational life under harsh conditions.

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