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China Suppliers Factory Semi-Conductive Tetoron Tape for High-Voltage Cable Wrapping and Shielding
Product Description
Semi conductive Teflon tape for cables is a key material used in cable manufacturing to improve electrical and insulation performance.
1. Main features:
- Semiconductority: This type of tape has uniform semiconductive properties, which can provide effective electric field control in cable structures, reduce electric field concentration, and improve the electrical safety performance of cables.
- Good insulation performance: In addition to the semiconductive layer, the Teflon tape also includes an insulation layer to protect the interior of the cable from external environmental influences and ensure long-term stable operation of the cable.
- High heat resistance: Tetoron tapes can usually maintain stable electrical and physical properties at high temperatures, meeting the requirements for cable use in high-temperature environments.
- Easy to process: It can be easily cut, wrapped, and fixed according to the needs of cable design, improving the efficiency and accuracy of cable manufacturing.
2. Application scenarios:
The semi conductive Teflon tape for cables is mainly used in the manufacturing of high-voltage and ultra high voltage power cables, especially in the conductor shielding, insulation shielding, and semi conductive layer of the cable. They can optimize the electrical structure of cables, reduce partial discharge and electric field distortion, and improve the transmission efficiency and reliability of cables.
3. Matters Needing Attention:
- Choose the appropriate material: Select the appropriate semi conductive Teflon tape material according to the specific requirements of the cable, ensuring that its electrical, heat resistance, and mechanical properties meet the requirements.
- Strict control of process: In the cable manufacturing process, it is necessary to strictly control the process parameters such as winding tension and overlap rate of the Teflon tape to ensure the uniformity and continuity of the semiconducting layer.
- Quality inspection: Conduct strict electrical and physical performance tests on the produced cables to ensure that the semi conductive Teflon tape plays its due role in the cables.
- Storage and transportation: Tetoron belts should be stored in a dry, ventilated, and non corrosive gas environment, avoiding direct sunlight and rain. During transportation, care should be taken to avoid dropping, throwing, and squeezing heavy objects to prevent damage to the product.
Parameters
Common Specification Table
| Properties | 18 | 20 | 25 |
|---|---|---|---|
| Thickness (mm) | 0.18±0.03 | 0.20±0.03 | 0.25±0.03 |
| Grammage (g/m²) | 150±20 | 170±20 | 135±20 |
| Tensile strength (N/cm) | ≥220 | ≥220 | ≥140 |
| Elongation (%) | ≥25 | ≥25 | ≥25 |
| Surface resistance (%) | ≤1000 | ≤1000 | ≤1000 |
| Volume Resistance (Ω.cm) | ≤1X10⁵ | ≤1X10⁵ | ≤1X10⁵ |
| Short term stability (℃) | 230 | 230 | 230 |
| Long term stability (℃) | 145 | 145 | 145 |
Detailed image
Frequently Asked Questions
What is the primary function of semi conductive Teflon tape in cables?
It is a key material used to improve electrical and insulation performance. It provides effective electric field control in cable structures, reduces electric field concentration, and enhances the overall safety and reliability of the cables.
In what types of cables is this tape typically used?
It is mainly used in the manufacturing of high-voltage and ultra-high-voltage power cables, specifically within the conductor shielding, insulation shielding, and the semi-conductive layers.
How does the tape perform under high temperatures?
The tape features high heat resistance (with long-term stability up to 145℃ and short-term stability up to 230℃), allowing it to maintain stable physical and electrical properties in high-temperature environments.
What process parameters must be controlled during application?
During cable manufacturing, it is critical to strictly control parameters such as winding tension and the overlap rate of the tape to ensure the uniformity and continuity of the semiconducting layer.
What are the recommended storage conditions for this tape?
The tapes should be stored in a dry, well-ventilated environment free of corrosive gases. They must be kept away from direct sunlight and rain, and protected from dropping, throwing, or heavy squeezing during transport.