The BDD Semi-Conducting Self-Adhesive Tape is a high-performance industrial solution engineered specifically to manage electric field stress in high-voltage applications. By providing a uniform electric field, this specialized tape significantly reduces stress concentrations, making it an essential component for the extension of cable shielding layers above 5kV and as a primary shielding layer for solid dielectric insulated cables.
Designed for precision and reliability, this semi-conductive tape is ideal for repairing conductive layers and ensuring electrical stability in demanding environments. Its superior self-adhesive properties allow for seamless wrapping around connectors, terminals, and shields, ensuring a secure and conductive bond that maintains system integrity under high-voltage stress.
Detailed Parameters
| Model | XF_BDD50-S68 | Tensile Strength | ≥1.3 Mpa (GB/T528) |
|---|---|---|---|
| Elongation at Break | ≥500 % (GB/T528) | Volume Resistivity | ≤1x10³ Ω·cm (GB/T3048.3) |
| Self Viscosity | No loosening (JB/T6468) | Heat-resistant Stress Cracking | No cracking (JB/T6468) |
| Heat Resistance | 13.0 ℃ (JB/T6468) | Standard Width | 25mm |
| Standard Length | 5m | Thickness | 0.8mm |
Key Advantages
Stress Reduction
Effectively homogenizes the electric field to minimize stress concentrations in high-voltage cables.
High Durability
Excellent elongation at break (≥500%) ensures the tape withstands mechanical deformation.
Superior Adhesion
Strong self-viscosity ensures no loosening over time, maintaining a permanent conductive seal.
Precision Shielding
Perfect for extending cable shielding layers above 5kV and repairing conductive layers.
Heat Stability
Tested against stress cracking to ensure stability under varying thermal conditions.
Flexible Application
Easy to stretch and wrap around complex terminals and semi-conductive layers.
Product Gallery
Management Platforms
Quality Control
Strict adherence to GB/T and JB/T standards for every production batch.
Custom Sizing
Flexible manufacturing for customized widths and core sizes upon request.
Technical Support
Expert guidance on wrapping techniques for optimal electric field distribution.
Rapid Delivery
Optimized supply chain for fast global shipping of industrial rubber products.
Inventory Management
Large-scale stock of BDD and other insulating tapes for immediate dispatch.
Compliance Tracking
Full traceability of raw materials and testing reports for all orders.
Investment Return Comparison
| Comparison Factor | Standard Tapes | BDD Semi-Conductive Tape |
|---|---|---|
| Electric Field Stress | High Risk of Concentration | Uniformly Reduced |
| Application Voltage | General Purpose | Optimized for >5kV |
| Mechanical Stretch | Limited Flexibility | High Elongation (≥500%) |
| Installation Life | Frequent Maintenance | Long-term Stability |
| System Reliability | Moderate | Enterprise Grade High-Voltage |
Frequently Asked Questions
It is primarily used to create a uniform electric field under high voltage, reducing stress and extending cable shielding layers above 5kV, particularly for solid dielectric insulated cables.
No, the BDD tape is not oil-resistant. It should not be used for oil-bearing joints or terminal cables.
The tape should be wrapped in a semi-overlapping manner. When wrapping around edges of connectors, terminals, or shields, the tape must be stretched fully to ensure conductivity without damaging the material.
Standard sizes are 25mm in width, 5m in length, and 0.8mm in thickness, though other custom sizes are available through the factory.
Unlike insulating tapes which block current, the BDD tape is semi-conductive, meaning it is designed to manage and distribute electrical stress rather than simply insulate it.
The product is tested according to GB/T528 (tensile and elongation), GB/T3048.3 (volume resistivity), and JB/T6468 (viscosity and heat resistance).
