Around the Conductor: Conductor Binders

In high-voltage (HV) and extra-high-voltage (EHV) cable manufacturing, applying a high-performance semi-conductive tape directly around the stranded conductor is a foundational requirement. These specialised tapes—known as conductor binders or conductor separators—are critical for mitigating electrical stress, protecting the core, and ensuring long-term insulation integrity. 

Production Selection:

We offer a versatile range of premium materials tailored to your specific application and engineering requirements: 

Material Classification

Semi-Conductive Nylon Tapes: BNLD100, BNLD120 

Semi-Conductive Polyester Tapes: BJZA100, BJZA120, BJZA140 

Semi-Conductive Polyester Tetoron Tapes: BTLA180, BTLA200, BTLA201 

The Tianrong Advantage: Our Features and Benefits

Minimised Pinholes:
Utilising a base of tightly woven nylon or polyester fabric finished with a consistent semi-conductive coating, these tapes minimise pinholes to prevent extrusion compound penetration during processing. 

Excellent Conformability:
The soft, pliable structure allows the tape to conform closely to the conductor profile, maintaining stable wrapping conditions during high-speed production. 

Low surface resistance and volume resistance:
Maintains continuous electrical contact to establish a uniform potential boundary. This prevents localized electric field concentrations (stress points) and eliminates charge accumulation in air gaps at the interface. 

High Coating Stability:
The semi-conductive coating retains its structural and electrical integrity when subjected to high temperatures and pressures during manufacturing. 

High Tensile Strength:
Delivers a rated tensile strength of up to 330 N/cm. This prevents tearing on high-speed wrapping lines and provides the necessary binding force required to firmly secure large-diameter conductors. 

Versatile Thicknesses:
Available in thicknesses of 0.10mm, 0.14mm, 0.18mm, and 0.20mm) to meet different conductor size requirements and design specifications.  

Engineered Solutions for Your Application

Every application has unique performance and manufacturing requirements. At Tianrong, we work closely with our customers to develop tailored cable material solutions designed to meet specific technical needs.

From customised specifications and material adjustments to application-focused solutions, our experienced team provides the expertise and flexibility needed to deliver the right product for your project.