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China Suppliers Factory Semi-Conductive Tetoron Tape for High Voltage Cable Wrapping and Shielding
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China Suppliers Factory Semi-Conductive Tetoron Tape for High Voltage Cable Wrapping and Shielding

Introducing our high-quality semi-conductive Tetoron tape, expertly crafted by impregnating and drying Teflon tape with a specialized semi-conductive adhesive. This innovative tape boasts exceptional semi-conductive properties, effectively reducing electric field strength while offering impressive mechanical strength and heat resistance. It is ideal for a variety of applications, including conductor wrapping, core wire shielding, and binding high-voltage cross-linked polyethylene cables, as well as high-voltage and ultra-high voltage power cables and mining cables. As a leading supplier and factory in China, we ensure that our products meet the highest standards of quality and performance for all your electrical insulation needs

    Product Description

    Semi conductive Teflon tape for cables is a key material used in cable manufacturing to improve electrical and insulation performance.

    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.

    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.

    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

    Q: What is the primary function of semi-conductive Teflon tape in cables?
    Semi-conductive Teflon tape is used in cable manufacturing to optimize the electrical structure, control electric fields, reduce concentration and partial discharge, and ultimately improve the overall electrical and insulation safety performance of high-voltage cables.
    Q: Does semi-conductive Teflon tape offer heat resistance?
    Yes, these tapes possess high heat resistance. They maintain stable physical and electrical properties at high temperatures, with short-term stability up to 230℃ and long-term stability up to 145℃.
    Q: In which cable parts is this tape typically applied?
    It is primarily applied in conductor shielding, insulation shielding, and the semi-conductive layer of high-voltage and ultra-high-voltage power cables.
    Q: What process parameters must be controlled during application?
    During cable manufacturing, it is critical to strictly control the winding tension and overlap rate of the tape to ensure the semiconducting layer remains uniform and continuous.
    Q: What are the storage guidelines for Tetoron/Teflon tapes?
    They should be stored in a dry, well-ventilated space free from corrosive gases. Keep them protected from direct sunlight and rain, and handle them carefully during transport to prevent damage from squeezing or impact.