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China Semi-Conductive Cotton Tape Suppliers | Flexible Conductive Tape from Factory for Irregular Surfaces
Product Description
Semi conductive tape for cables plays an important role in cable manufacturing and maintenance. Its main characteristics and applications are as follows:
1、Characteristics
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Semiconductority
Semi conductive tape used in cables has a low electrical resistivity, which allows it to play a specific electrical role in the cable structure.
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Conductivity stability
During the stretching process, the semi conductive tape can maintain its conductivity unchanged, which is a key factor in ensuring the electrical performance stability of the cable under different working conditions.
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Heat resistance
Semi conductive tape can maintain stable performance at overload temperatures (such as 130 ℃/266 ℉), which is crucial for the safe operation of cables in high-temperature environments.
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Good compatibility
It has good compatibility with various cable and conductor materials, and can tightly bond with the insulation layer to form a smooth interface.
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Solvent resistance, UV resistance, and moisture resistance
These characteristics enable semiconducting tapes to maintain stable performance in various complex environments, extending the service life of cables.
2、Application
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Conductor shielding and insulation shielding
In cable manufacturing, semiconducting tape is commonly used for conductor shielding and insulation shielding. Its function is to improve the electric field distribution inside the cable, avoid partial discharge, and thus enhance the electrical resistance of the cable.
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Cable repair
In power system maintenance, semiconducting tape is also commonly used for rapid repair of cables, such as solving repair problems of cable joints, terminals, shielding layers, and edges of semiconducting layers.
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Uniform electric field and reduced electric field stress
In high electric field environments, semiconducting tapes can evenly distribute electric fields and reduce electric field stress, thereby protecting cables from electrical faults such as electrical breakdown.
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Cable shielding layer extension
For certain specific specifications of cables (such as cables below 5KV), semiconducting tape can also be used to extend the shielding layer to meet specific electrical performance requirements.
3、Precautions for use
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Wrapping method
When using semiconducting tape, it is usually necessary to wrap it in a semi overlapping manner to ensure the continuity and stability of electrical performance.
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Fully stretch
During the wrapping process, it is necessary to fully stretch the semiconducting tape to ensure a tight fit with the cable surface and avoid the formation of bubbles or wrinkles.
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Environmental adaptability
Although semiconducting tape has the characteristics of solvent resistance, UV resistance, and moisture resistance, it is still necessary to avoid prolonged exposure to harsh environments during use to avoid affecting its performance.
Parameters
| Properties | Thickness（mm) | Grammage（g/m²） | Tensile strength（g/m²） | Elongation（%） | Surface resistance（Ω） | Volume Resistance（Ω.cm) |
|---|---|---|---|---|---|---|
| Single-layer | 0.25±0.03 | 230±20 | ≥100 | ≥12 | ≤1000 | ≤1X10⁵ |
| 0.3±0.03 | 250±20 | ≥100 | ≥12 | ≤1000 | ≤1X10⁵ | |
| Double-layer | 0.3±0.03 | 250±20 | ≥100 | ≥12 | ≤1000 | ≤1X10⁵ |
| 0.35±0.03 | 260±20 | ≥100 | ≥12 | ≤1000 | ≤1X10⁵ | |
| Support customizing other specifications | ||||||
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Frequently Asked Questions
It is primarily used for conductor and insulation shielding to improve electric field distribution, prevent partial discharge, and enhance the electrical breakdown resistance of the cable.
No, the tape features conductivity stability, which ensures its electrical performance remains stable and unchanged even during the stretching process.
It offers excellent heat resistance, allowing it to maintain stable performance at overload temperatures of up to 130 ℃ (266 ℉).
It should be wrapped in a semi-overlapping manner and fully stretched during application to ensure a tight fit with the cable surface and to prevent bubbles or wrinkles.
Yes. It is commonly used for rapid repairs of cable joints, terminals, shielding layers, and the edges of semiconducting layers in power systems.
Yes, besides standard single-layer and double-layer specifications, we support customizing other specifications to meet your specific application requirements.