Product Overview
The J50 High-voltage EPR Rubber Tape is a professional-grade insulation solution engineered specifically for the docking and termination of high-voltage cables. Designed to handle extreme electrical environments, it provides critical primary insulation for solid medium cables ranging from 600V up to 138kV, ensuring maximum safety and reliability in power distribution systems.
Constructed from high-performance Ethylene Propylene Rubber (EPR), this tape is built to withstand emergency overload temperatures reaching up to 130°C. Featuring a specialized non-stick release paper for effortless unrolling, it is the ideal choice for all solid dielectric cable insulation layers, offering both superior electrical resistivity and robust mechanical protection.
Detailed Parameters
| Tensile Strength | ≥1.7 Mpa (GB/T 528) | Elongation at Break | ≥500 % (GB/T 528) |
|---|---|---|---|
| Dielectric Strength | ≥28 kV/mm (GB/T 1695) | Volume Resistivity | ≥1x10¹⁴ Ω·cm (GB/T 1692) |
| Dielectric Loss Tangent | ≤0.05 (GB/T 1693) | Dielectric Constant | ≤5.0 (GB/T 1693) |
| Self Viscosity | No loosening (JB/T 6468) | Heat-resistant Stress Cracking | No cracking (JB/T 6468) |
| Max Heat Resistance | 130 ℃ (JB/T 6468) | Standard Thickness | 0.76 mm |
Key Advantages
Ultra-High Insulation
Supports voltage levels from 600V to 138kV, providing critical safety for high-voltage cable recovery.
Thermal Stability
Capable of withstanding emergency overload temperatures up to 130°C without loss of integrity.
Superior Elasticity
With elongation at break ≥500%, it ensures a tight, seamless wrap around complex cable geometries.
No-Stick Release
Specialized release paper ensures the tape does not adhere to itself during unrolling for faster installation.
Mechanical Defense
Acts as a robust outer layer to provide essential mechanical protection against external abrasions.
Industry Certified
Fully compliant with GB/T and JB/T testing standards for guaranteed industrial reliability.
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Management Platforms
Precise Sizing
Available in widths of 19mm, 25mm, 38mm, and 50mm to fit any cable diameter.
Custom Core Options
Flexible core sizes available upon request to meet specific factory requirements.
Quality Control
Rigorous testing for dielectric strength and volume resistivity on every batch.
Rapid Deployment
Optimized for emergency cable recovery and rapid field termination.
Bulk Supply
Scalable production capacities for large-scale industrial and infrastructure projects.
Technical Support
Expert guidance on application methods for 600V to 138kV installations.
Investment Return Comparison
| Performance Metric | Standard PVC Tape | J50 EPR Rubber Tape |
|---|---|---|
| Voltage Capacity | Low/Medium | High (Up to 138kV) |
| Thermal Limit | Standard (60-80°C) | Extreme (Up to 130°C) |
| Elasticity | Limited | High (≥500% Elongation) |
| Dielectric Strength | Basic | Superior (≥28 kV/mm) |
| Long-term Reliability | Moderate | Industrial Grade (No Cracking) |
Frequently Asked Questions
It is primarily used for the docking and termination of high-voltage cables, specifically for the main insulation of solid medium cables from 600V to 138kV.
The J50 tape is designed for high thermal stability, with an emergency overload temperature threshold of up to 130°C.
Yes, it can be used for all solid dielectric cable insulation layers and is also effective as an outer layer for mechanical protection.
It features a special release paper that prevents the tape from sticking to itself during unrolling, ensuring a smooth application process.
Standard widths include 19mm, 25mm, 38mm, and 50mm, with lengths ranging from 5m to 9.1m. Custom sizes are also available upon request.
Yes, the product is tested according to GB/T 528, GB/T 1695, GB/T 1692, GB/T 1693, and JB/T 6468 standards.
