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**Which Henan cable is good, which Zhengzhou cable is good, choose Henan State Grid Cable.**
**Characteristics of Plastic Insulated Control Cable:**
1. **Conductor Core:** Generally, copper cores are used. For fixed installations, in addition to the single core structure, there are 7 twisted structures. For mobile uses, a Class 5 flexible conductor structure is employed to meet the requirements for softness and bending resistance.
2. **Insulation Layer:** Mainly uses insulation materials such as polyethylene, polyvinyl chloride, and natural rubber.
3. When the insulated conductor core is cabled, the adjacent twisting layers are in opposite directions, making the structure more stable. For outdoor cable cabling, nylon rope filling is used to enhance resistance. Conversely, same-direction cabling increases softness and bending performance.
4. **Sheath:** Mainly uses materials like polyvinyl chloride, neoprene rubber, and PVC compounds.
**Advantages of Cross-Linked Polyethylene Insulated Control Cables:**
1. Cross-linked polyethylene almost completely retains the inherent high electrical performance of polyethylene, with high breakdown strength, large insulation resistance, low dielectric constant, and low dielectric loss.
2. Cross-linked polyethylene has a low density, and the cable does not require a metal sheath, making the cable lightweight per unit length and easy to install.
3. Cross-linked polyethylene has high heat resistance and aging performance, low dielectric loss, and a long-term allowable working temperature of 90°C, significantly enhancing transmission capacity.
4. Suitable for vertical installations, high drop locations, and areas with vibration.
5. Good chemical resistance.
6. The cable has excellent insulation performance, waterproof, corrosion-resistant, and pressure-resistant features.
7. Uses halogen-free flame-retardant materials, improving the flame-retardant properties of the cable, reducing smoke density and harmful gas emissions during combustion, enhancing cable safety.
8. Shielded control cables have low dielectric loss, strong signal transmission capability, and good anti-interference performance, reliably transmitting weak analog signals.
**Future of Plastic Insulated Control Cables:**
1. High-temperature resistant control cables have properties such as high-temperature resistance, alkali resistance, oil resistance, and oxidizer resistance.
2. The long-term allowable working temperature for the cable core is -40°C to +200°C.
3. The bending radius of the cable should not be less than 6 times the cable's outer diameter.
4. Low smoke halogen-free control cables produce low smoke density during combustion, high light transmittance, no halogen acid gas release, and no harmful by-products, making them environmentally friendly products.
5. Armored control cables can withstand considerable mechanical forces, preventing rodent gnawing and improving operational safety.
**Design Features of Plastic Insulated Control Cables:**
1. **Structural Characteristics:**
- **Conductive Wire Core:** Generally uses copper cores. For fixed installations, it employs a single core structure along with 7 twisted structures. For mobile applications, a Class 5 flexible conductor structure is used to meet the requirements for softness and bending resistance.
- **Insulation Layer:** Primarily uses insulation materials like polyethylene, polyvinyl chloride, and natural rubber.
2. **Structural Schematic Diagram:**
- When the insulated conductor core is cabled, the adjacent twisting layers are in opposite directions, making the structure more stable. For outdoor cable cabling, nylon rope filling is used to enhance resistance. Conversely, same-direction cabling increases softness and bending performance.
- **Sheath:** Mainly uses materials such as polyvinyl chloride, neoprene rubber, and PVC compounds.