Are tubular busbars difficult to strip

Yes, tubular busbars are generally more difficult to strip due to their shape, high-voltage applications, and the need for careful handling during installation.

Tubular Busbar Characteristics

Tubular busbars are commonly used in electrical substations for very high voltages because they offer good ventilation and mechanical strength compared to flat or square busbars, which makes them ideal for high-current applications . Their hollow, cylindrical design improves heat dissipation and reduces weight while maintaining structural integrity, but it also introduces challenges when removing insulation or protective coatings.

Stripping Challenges

1. Complex Shape: The tubular form makes it harder to uniformly remove insulation, especially if the busbar is coated with PVC, polymer sleeves, or epoxy layers. Curved or bent sections further complicate the stripping process .
2. High-Voltage Considerations: Tubular busbars are often used in high-voltage systems, so any stripping must be done carefully to avoid damaging the conductor or creating partial discharge points .
3. Mechanical Handling: Due to their size and rigidity, tubular busbars require special tools and careful handling during installation, which adds to the difficulty of stripping insulation without deforming the tube .

Insulation Types and Stripping Implications

• PVC or polymer sleeves: These are simple and low-cost but can be difficult to remove on curved or complex-shaped tubular busbars, and uneven thickness may remain after stripping .
• Epoxy coatings: These provide a dense, uniform insulation layer with high adhesion, making stripping more challenging and often requiring mechanical or chemical methods .

Practical Advice

• Stripping tubular busbars is more labor-intensive than flat busbars and may require specialized tools or pre-designed access points.
• Care must be taken to avoid damaging the conductor, which could compromise electrical performance or safety.
• In high-voltage installations, it is often recommended to minimize stripping and instead use pre-insulated or pre-terminated sections to reduce risk. In summary, tubular busbars are indeed more difficult to strip compared to flat or flexible busbars due to their shape, insulation type, and high-voltage application requirements. Proper planning, tools, and handling techniques are essential to safely and effectively remove insulation when necessary .