Soft Bare Copper Stranded Earth Cable – TJ Type
The TJ-type soft bare copper stranded earth cable is an uninsulated, annealed copper conductor engineered for electrical grounding, earthing systems, and lightning protection installations. With a copper purity of 99.99%, it delivers minimal resistance and maximum conductivity for dependable fault-current dissipation in industrial, commercial, and utility applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Conductor material | Soft-drawn (annealed) bare copper |
| Copper purity | ≥ 99.99% |
| Conductor type | Stranded (Class 2), TJ type |
| Standard | GB/T 3956, IEC 60228 Class 2 |
| Available cross-sections | 1.5 mm² – 400 mm² |
| Strand count | 7 – 61 strands (varies by cross-section) |
| Surface finish | Bright bare copper, no coating |
| Packaging | Coil or wooden drum, custom lengths |
Key Features
- 99.99% high-purity copper — superior conductivity and low impedance grounding path
- Soft-drawn (annealed) construction — excellent flexibility for tight bends and complex routing
- Fast fault-current dissipation — reliable protection for personnel and equipment
- No insulation — suitable for direct burial, concrete encasement, and exposed earthing runs
- Corrosion resistant — performs reliably in humid, saline, and outdoor environments
- Custom cross-sections and lengths — flexible MOQ for samples and bulk orders
Common Applications
- Industrial and substation earthing systems
- Lightning protection down conductors and earth electrodes
- Building foundation earth loops (concrete-encased electrodes)
- Overhead line neutral and grounding conductors
- Solar PV array and wind turbine grounding
- Telecommunications tower earthing
Why Choose CableApex
Manufactured in our Yangzhou facility with over 15 years of export experience. All TJ-type bare copper earth cables are produced to IEC 60228 Class 2 tolerances and are available with third-party test reports. MOQ is flexible for both sample orders and bulk procurement. Contact us for pricing and lead times.
