PVC Electric Cables Supplier
Basic Info.
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Voltage level: |
450/750V;300/500V |
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Implementing standard: |
GB/T 5023.3-2008/IEC60227-3:1997;JB/T8734.2-2016 |
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Maximum conduct temperature: |
70℃ |
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Core: |
Single core |
Specification
1. Conductor: solid copper conductor (the first conductor)
Tightly stranded round copper conductor (the second conductor)
2. Insulation: polyvinyl chloride insulation
Applications
High-voltage scenarios: 66kV and above transmission and distribution systems preferred, such as urban underground grids, cross-sea cables.
Special laying: direct burial, row of pipes, tunnels and other multi-environmental adaptability, especially suitable for large-capacity power transmission (cross-section up to 2500mm²).
Industrial field: power plants, petrochemical plants and other places with high reliability requirements.
Key considerations
- Eddy current protection: non-magnetic clamps are required in AC systems, and three-phase cables are arranged in zigzag pattern to reduce eddy current loss.
- Grounding requirements: the metal shield needs to be grounded at least at one end (high-voltage systems often use cross-interconnection grounding).
- Bending restrictions: the minimum bending radius is usually 15D (D is the outer diameter of the cable) to avoid insulation damage.
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