Semi-Conductive Self-Adhesive Tape

Semi-Conductive Self-Adhesive Tape

Product Description

Semi-Conductive Self-Adhesive Tape is a specialized electrical tape designed to manage electric field distribution and provide electromagnetic shielding in medium and high-voltage cable systems. Composed of a polymer base (typically EVA or rubber) loaded with conductive carbon black particles, this tape exhibits tailored resistivity to ensure smooth electric field transition while preventing localized stress concentrations. Its self-adhesive property allows for easy application onto cable cores, splices, or terminations, conforming tightly to irregular surfaces without gaps or bubbles. The tape serves as a critical component in cable accessories by replicating the semiconducting layer of the cable, ensuring continuity of the electrical field shielding system and suppressing partial discharge.

Ideal for cable splicing, termination, and repair applications, this tape is widely used in constructing joints for XLPE-insulated cables, reinforcing stress control layers, and shielding conductor connections. It offers excellent thermal stability, mechanical flexibility, and environmental resistance, maintaining performance under operational temperatures ranging from -30°C to +90°C. The tape is essential for utility power networks, industrial plants, and renewable energy infrastructure where reliable high-voltage performance is required.

Specification Model 

BDD-50 BDD-20

Product Dimensions

0.6*40*5000 (T×W×L)

0.6*25*5000 (T×W×L)

0.8*25*1000 (T×W×L)

Product Application

Mainly used for the production of power cable joints and shielding repair, as well as the insulation treatment of electrical equipment such as transformers and high - voltage switches. It is also used for the shielding and joint protection of coaxial cables in communication cables, which can equalize the electric field, prevent interference and improve insulation performance. With its self - adhesive structure, it can closely fit irregular surfaces without the need for tools during construction, and is widely used in the power and communication fields.

Product Advantages

• Semi - conductive Property: Releases charge and equalizes the electric field, effectively avoiding electric field concentration, reducing partial discharge, and improving the stability and safety of electrical equipment operation.

• Static Electricity Release: Quickly releases accumulated static electricity, protecting electronic components and equipment from damage caused by static electricity.

• Strong Self - Adhesion: Can firmly adhere to the surface of objects, making construction convenient and fast, and maintaining good adhesion under different environmental temperatures.

• Good Flexibility: Soft in texture, can be bent and twisted, and can closely fit objects of various shapes and sizes.

• High Mechanical Strength: Has a certain tensile strength and tear resistance, not easy to be broken or torn, prolonging the service life.