From the strong radiation and vacuum environment of outer space to cryogenic scenes at liquid helium temperatures, from high-temperature and high-pressure conditions in deep-sea oil wells to the low-noise transmission requirements of precision instruments, cables, as core connecting components, directly determine the operational stability of the system.
TST CABLE, leveraging its core extrusion technology, has created a full range of extruded polyimide (PI) cables, precisely tailored to the demanding requirements of extreme environments in multiple fields. With excellent electrical performance, mechanical strength, and environmental resistance, they have become a key supporting product for high-end equipment. Core Product Series and Technical Parameters
1. Aerospace-Specific Series
(TST-HKTPI 300V / TST-HKTPIP2 300V)
1. Core Configuration
Conductor: Silver-plated conductor or silver-plated copper alloy conductor, compliant with GJB773A-2000 standard
Insulation/Sheath: PI extruded material, shielding layer uses silver-plated conductor or silver-plated copper alloy conductor
2. Key Parameters
Voltage Rating: Rated voltage 300V AC, AC test voltage 1500V AC, DC test voltage 3600V DC
Temperature Range: -220℃~+260℃ (short-term resistance to +300℃), stable operation at extremely low temperatures down to -269℃
Minimum Bending Radius: 3 × cable outer diameter (D)
Radiation Resistance: Resistant to α and γ rays, no cracking of insulation and sheath under 1×10⁹ rad irradiation
Abrasion Resistance: ≥10000 cycles, meeting EN45545-2 fire resistance HL3 level
3. Application Scope
Outer space spacecraft, satellites, space stations and other strong radiation vacuum environments, internal wiring of aerospace instruments, motor windings and other critical parts
4. Performance Advantages
Compared with traditional PI film wrapped wires, AS 22759/180-192 and MIL-W-22759 series, it has the advantages of higher voltage resistance, lighter weight, smaller outer diameter, and smoother surface. The 0.035mm² cable weighs only 0.74kg per 100m, and has low signal loss (1.0mm² specification, 20℃ conductor resistance 19Ω/km)
2. Ultra-Low Temperature Specific Series
Liquid Nitrogen 77K Low Noise Series
(TST-SDJPI-DYT 600V)
Core Parameters:
Rated voltage 600V AC
Temperature range -196℃~+260℃
Minimum bending radius 6×D
Abrasion resistance ≥ 20000 cycles
Key Performance:
Cable noise value ≤ 5mV
Conductor resistance at 20℃ ≤ 92.6Ω/km
Insulation resistance ≥ 500MΩ.km
No cracking or breakdown in -196℃ low-temperature test
Applicable Scenarios:
Cables for vibration sensors of submersible motors in LNG storage tanks and LNG ships
Advantages:
Smaller outer diameter, better vibration resistance and low-temperature stability compared to FEP cables, approximately 20% lighter weight
Liquid Helium 4K High Voltage Series
(TST-GYPIT DC 15kV/20kV/30kV)
Core Parameters:
Rated voltage DC 15-30kV,
Temperature range -269℃~+260℃,
Minimum bending radius 30×D,
Abrasion resistance ≥ 20000 cycles
Test Voltage:
15kV class: AC 22kV, DC 32kV
30kV class: AC 42kV, DC 62kV
Applicable Scenarios:
High-voltage introduction to scientific experimental equipment and superconducting power supply cables at liquid helium temperature
Advantages:
Strong radiation resistance (no cracking at 1×10⁹ rad), stable performance in extremely high vacuum environments, low smoke, halogen-free and non-toxic
Ultra-low Temperature Ultra-vacuum Series
(TH/J-PIPIP-DYT 300V)
Core Parameters:
Rated voltage 300V AC,
Temperature range -269℃~+260℃ (short-term +300℃)
TML < 0.8% in 5×10⁻⁴pa environment,
CVCM < 0.10%
Applicable Scenarios:
Military industry, aerospace field, vacuum medical applications, digital signal and power transmission in liquid nitrogen/liquid oxygen environments
Advantages:
Abrasion resistance ≥ 20000 cycles,
PI material maintains chemical, electrical, and mechanical stability from -269℃ to 400℃
3. Special Series for Submersible Oil Motors
(Special Polyimide Copper Round Wire)
Standards:
Company Standard, JB/T Standards: 5331-2011, JB/T 23311-2009, GB/T 3048-2007, etc.
Core Parameters
Temperature Resistance: Stable operation at 260℃ high temperature, no cracking under thermal shock at (260±5)℃
Insulation Performance: Insulation thickness 0.12-0.30mm, withstand voltage 4000-10000V, breakdown voltage 10000-23000V
Mechanical Performance: Abrasion resistance 5000-20000 cycles (depending on insulation class), no breakdown at 450℃ for 2 minutes, resistant to oil and water corrosion
Applicable Scope
Submersible oil-filled motor winding wires below H-class, oil-filled special motor winding wires, submersible pump cable insulation cores
Performance Advantages
High-pressure extrusion process achieves seamless and dense insulation layer, high space utilization, increased power density, smaller conductor size, moisture-proof and leak-proof, uniform aging, and long service life
Core Common Advantages
Material Characteristics: All series use PI extruded insulation/sheath, possessing common characteristics of low smoke, halogen-free, non-toxic, and high flame retardancy
Process Advantages: One-time extrusion molding, dense and uniform structure, strong adhesion, and excellent flexibility
Environmental Adaptability: Stable operation in complex environments such as extreme temperature zones, strong radiation, high vacuum, high pressure, and corrosion
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