Coaxial Cable with Physically Foamed PE Insulation for Cable Distribution System
Product Overview
Section titled “Product Overview”This coaxial cable with physically foamed polyethylene insulation is designed for branch and subscriber lines in closed-circuit television, common antenna TV and cable distribution systems below 1GHz. Physically foamed PE insulation supports low attenuation and consistent high-frequency transmission.
Applications
Section titled “Applications”- Closed-circuit and common antenna TV systems below 1GHz.
- Branch lines, subscriber lines and electronic equipment in cable distribution systems.
- Cable trays, brackets and tunnels in indoor, wet outdoor or dry environments.
Product Features
Section titled “Product Features”- PVC or PE outer sheaths are available.
- Inner conductor can be a single round copper wire or copper-clad aluminium wire.
- The outer conductor uses dual shielding with aluminium-plastic composite tape and tinned round copper or aluminium-alloy braid.
- Insulation resistance: at least 5000MΩ·km.
Key Parameters
Section titled “Key Parameters”| Type | Inner conductor | Insulation OD | Outer conductor | Sheath OD | Unit weight |
|---|---|---|---|---|---|
| SYWV-75-5 | 1.0±0.02mm | 4.8±0.2mm | ≤5.8mm | ≤7.5mm | 46kg/km |
| SYWV-75-7 | 1.66±0.02mm | 7.25±0.25mm | ≤8.3mm | ≤10.6mm | 85kg/km PVC / 75kg/km PE |
| SYWV-75-9 | 2.15±0.03mm | 9.00±0.25mm | ≤10.3mm | ≤12.6mm | 120kg/km PVC / 110kg/km PE |
Electrical Performance
Section titled “Electrical Performance”- Characteristic impedance at 200MHz: 72.0-78.0Ω for SYWV-75-5 and 72.5-77.5Ω for SYWV-75-7 and SYWV-75-9.
- Shielding attenuation at 50MHz, 200MHz and 800MHz: up to 60, 70 and 70dB respectively.
- Immersion and spark-test voltages vary by type from 2.0 to 8.0kV.
Standard
Section titled “Standard”SJ/T 11138-97.
Product Downloads
Section titled “Product Downloads”View this product PDF catalogue online, or return to the Wire & Cable downloads page for related documents.
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