Twin and Triple Bunched Paper Insulated Copper Strips are specialized conductors designed for high-power and high-voltage electrical applications. These strips consist of two or three copper strips bunched together and wrapped with multiple layers of specially treated paper insulation, usually impregnated with insulating oils.

This construction enhances tensile strength, flexibility, reliability, and current-carrying capacity, making them highly suitable for demanding industrial environments.

Design & Insulation Technology

The multi-layer paper insulation improves the dielectric strength and thermal performance of the copper strips. The bunched configuration offers greater flexibility, allowing easy handling, bending, and installation, especially in compact transformer windings.

At the same time, the design helps maintain low resistive losses while supporting higher current flow.

Applications

Twin / Triple Bunched Paper Insulated Copper Strips are commonly used in:

• Transformer Windings
• Electrical Generators
• High-Voltage Electrical Equipment
• Industrial Power Systems

They are ideal for applications requiring reliable insulation, durability, and consistent performance under high electrical stress.

What is a Paper Covered Copper Strip?

A paper covered copper strip is a malleable conductor made from high-purity copper that comes in specific widths and thicknesses to meet application requirements. Due to copper’s natural electrical and thermal properties, these strips are widely used in:

• Power Plants
• Welding Equipment
• Refineries
• Chillers & Heat Exchangers
• Defence & Heavy Industries

Key Features of Paper Covered Copper Strips

Alcutrans supplies twin and triple bunched paper insulated copper strips with the following features:

• Exceptional Thermal Conductivity
• High Electrical Conductivity
• Excellent Machinability
• High Ductility & Flexibility
• Strong Resistance to Corrosion & Biofouling
• Non-Magnetic Properties
• Antibacterial Characteristics
• Fully Recyclable & Environment-Friendly