PVC covered copper tape (or
PVC Covered Copper Earthing Tapes) is an upgraded alternative to bare copper, offering a layer of protection that is essential for both structural safety and long-term durability. By adding a UV-stabilized PVC layer, manufacturers ensure that the conductor remains effective in varied climates without the maintenance required for exposed metal.
Key Advantages & Performance
- Aesthetic Integration: One of the primary benefits is the availability of different colors (black, grey, stone, white, green, etc.). This allows the PVC covered copper tape to be mounted on exterior walls while matching common building finishes like brick or stone.
- Superior Insulation: The robust PVC coating, typically 0.5mm to 1mm thick, provides high dielectric strength and prevents electrical leakage, making it safer for installation in areas where people may come into contact with the system.
- Environmental Durability: The coating is UV-stabilized, meaning it resists degradation from sunlight, chemicals, and harsh weather. This extends the lifespan of the copper core, which is usually 99.9% pure electrolytic grade copper.
- Standard Ratings: High-quality tapes are manufactured to standards like BS EN 13601 and are designed to handle fault current temperatures up to 250°C.
Common Applications
- Lightning Down Conductors: It provides the vital low-impedance path between the roof's air terminals and the earth termination network.
- Substations & Utilities: Used for earthing in substations where color-coding (like green/yellow) is required for safety and identification.
- Structural Grounding: Ideal for exposed mounting on commercial and industrial buildings due to its flexible, easy-to-install flat profile.
Technical Specifications (Standard Sizes)
The most commonly used dimensions for earthing and lightning protection include:
- 12.5mm x 1.5mm: Used for lighter residential or signal grounding.
- 25mm x 3mm: The industry standard for most building down-conductor systems.
- 50mm x 6mm: High-capacity tape used in large industrial plants or power stations
