Tunnel engineering shielding structure of polyurethane cables

Key Technical Data

0.5mm
2mm
40℃
90℃
0.1mm
100MΩ
20℃
80%
300/500V
0.6/1kV
10kV
10mm

The key to selecting polyurethane cables lies in the operating conditions. Shanghai Suoqi polyurethane cables use a polyether type polyurethane outer sheath, conductors conforming to VDE 0295 CLASS 5 standards, and TPV composite insulation, suitable for environments with oil, acid, and alkali corrosion. They offer core advantages such as wear resistance, tensile strength, and oil resistance, and can be widely adapted to scenarios such as mines, tunnels, and wet spraying. Insulation: special blended PVC material is selected, with uniform insulation thickness ranging from 0.5mm to 2mm, precisely matched according to the cable's rated voltage. Temperature resistance: -40℃ to 90℃. Within this temperature range, all performance indicators of the cable remain stable, without hardening, brittleness, or softening. Voltage rating: can be customized according to actual needs, with common ratings of 300/500.

Product Features

Specifications Conductor: Made with multi-strand ultra-fine finely twisted oxygen-free copper wire, strictly compliant with VDE0295 CLASS 6 standards. Single wire diameter as fine as 0.1mm, with the number of strands ranging from dozens to hundreds depending on cable specifications, ensuring flexibility and conductivity.

Insulation layer: Uses special mixed PVC material, with uniform insulation thickness between 0.5mm and 2mm, precisely matched according to cable rated voltage. Insulation resistance ≥ 100MΩ·km (at 20°C).

Shielding layer: Made of tinned copper mesh braid, with a shielding density of ≥80%, and a uniform tin plating thickness, which can effectively prevent copper mesh oxidation and improve the longevity of the shielding effect.

Rated voltage: Can be customized according to actual needs, commonly 300/500V, 0.6/1kV, etc., and can be customized up to 10kV to meet the power requirements of different equipment.

Cable outer diameter: varies according to specifications, ranging from 10mm to 50mm, and can be selected according to the installation space of the equipment.

Application scenarios

Industrial automation, machinery manufacturing, port terminals, and mining operations

Technical Parameters

Parameter item

Technical indicators

Insulation layer

Selected special blended PVC material, with uniform insulation thickness ranging from 0.5mm to 2mm, precisely matched according to different cable rated voltages, with insulation resistance ≥100MΩ·km (at 20°C).

Shielding layer

Made of tinned copper mesh weaving, with a shielding density ≥80%, uniform tin plating thickness, effectively preventing copper mesh oxidation and enhancing the durability of the shielding effect.

Sheath

PURJ polyurethane material, with a sheath thickness of 1mm - 3mm, smooth surface, and good scratch resistance.

Operating temperature

-40°C to 90°C. Within this temperature range, all cable performance indicators remain stable, with no hardening, brittleness, or softening occurring.

Rated voltage

Customization can be made according to actual needs, with common options including 300/500V, 0.6/1kV, etc., and up to 10kV to meet the power requirements of devices with different power levels.

Cable outer diameter

The specifications vary, ranging from 10mm to 50mm, and can be selected according to the installation space of the equipment.

Minimum bending radius

For fixed installation, it is 4 times the outer diameter of the cable; for mobile installation, it is 8 times the outer diameter of the cable, facilitating wiring installation in different scenarios.

Customized services

Direct sales from Shanghai Suoqi cable factory source, supporting on-demand customization of multiple core counts and specifications. Ample stock available, nationwide shipping. Consultation hotline: 13311756197

Frequently Asked Questions

What is the temperature resistance of polyurethane cables?

Conventional polyether PUR is suitable for temperatures from -40°C to 90°C, and can be higher in the short term. When selecting, consider ambient temperature and mobile status for confirmation.

Will polyurethane cables hydrolyze?

Ether-based PUR has excellent hydrolysis resistance, far superior to polyester-based types. Ether-based formulations should be specified for long-term humid environments.