The computer cable is designed for use in computers and automatic connection systems that operate at a rated voltage of 500V or below and require strong electromagnetic interference (EMI) resistance. The ground core insulation uses K-type B low-density polyethylene, which offers excellent antioxidant properties. This material provides high insulation resistance, superior dielectric strength, a low dielectric constant, and minimal dielectric loss, ensuring reliable signal transmission and long-term durability under varying temperature and frequency conditions.
To minimize crosstalk and external interference between signal loops, the cable is equipped with shielding. The type of shielding depends on the application requirements, including twisted-pair shielding, overall shielding of the twisted pair, or a combination of both. Shielding materials include round copper wires, copper tapes, and aluminum-plastic composite tapes, all of which provide effective EMI protection while maintaining good insulation performance. Even if a potential difference occurs between the shield and the conductors during operation, it will not affect the integrity of the signal transmission.
**Technical Parameters**
- Rated Voltage (U0/U): 300/500V
- Maximum Continuous Operating Temperature: 70°C
- Installation Ambient Temperature: -40°C for fixed installation, -15°C for non-fixed installation
- Minimum Bending Radius: 6 times the cable diameter for unarmored cables, 12 times for armored cables
- Insulation Resistance: ≥2500 MΩ·km when tested with DC 500V for 1 minute at 20°C
- Continuity Test: Each twisted pair must have a continuous path, and there should be no breakdown during a 50Hz AC 2000V test for 5 minutes between cores and shields.
The control cable is ideal for industrial and mining enterprises, energy transportation sectors, and other applications requiring PVC-insulated and PVC-sheathed control cables operating at 450/750V or lower. These cables are commonly used for power supply and signal control in instrumentation and automation systems.
**Key Features**
- Rated Voltage: 450/750V
- Conductor Operating Temperature: 70°C or 95°C depending on the model
- Minimum Installation Temperature: Not below 0°C
- Recommended Bending Radius: 6 times the outer diameter for unarmored cables, 12 times for armored or copper-shielded cables, and 6 times for flexible shielded cables
- Application: Control and signal transmission in industrial equipment and instruments
Common models include KVV, KYJV, and other instrument wiring options. These cables are engineered to deliver reliable performance in demanding environments, ensuring safe and efficient operation of control systems.
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