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China Semi-Conductive Tetoron Tape Suppliers - High-Quality Factory Product for High-Voltage Cable Applications
Product Description
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.
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.
Tetoron tapes can usually maintain stable electrical and physical properties at high temperatures, meeting the requirements for cable use in high-temperature environments.
It can be easily cut, wrapped, and fixed according to the needs of cable design, improving the efficiency and accuracy of cable manufacturing.
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.
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.
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.
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.
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
| 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 (°C) | 230 | 230 | 230 |
| Long term stability (°C) | 145 | 145 | 145 |
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Frequently Asked Questions (FAQ)
It is a key material used to improve the electrical and insulation performance of cables. It provides uniform semiconductive properties to control electric fields, reduce concentration, and enhance electrical safety.
It is primarily used in high-voltage and ultra-high voltage power cables, specifically within conductor shielding, insulation shielding, and the semi-conductive layers to optimize electrical structures and reduce partial discharge.
The Tetoron (Teflon) tape features high heat resistance. It has a short-term stability rating of 230°C and a long-term stability rating of 145°C, allowing it to maintain stable electrical and physical properties in high-temperature environments.
During cable manufacturing, process parameters such as the winding tension and the overlap rate of the Teflon tape must be strictly controlled to ensure the uniformity and continuity of the semiconducting layer.
The tape should be stored in a dry, ventilated, and non-corrosive gas environment, away from direct sunlight and rain. During transport, avoid dropping, throwing, or squeezing heavy objects against it to prevent damage.
Depending on the specific type (18, 20, or 25), the tensile strength ranges from ≥140 N/cm (for type 25) to ≥220 N/cm (for types 18 and 20).