Understanding FEP Cable
1. Introduction to FEP Cables
- What is an FEP Cable?
- FEP cables are cables insulated and sheathed with FEP (Fluorinated ethylene propylene). The temperature range of these cables is -100 to +200°C. The conductors are usually tinned copper or silver plated copper. Its VDE code is 6Y.
- Why Choose FEP?
- Compared with other plastics, FEP cables have superior resistance to high and low temperatures, corrosion, weathering, acids and alkalis, and electrical insulation. Therefore, in the modern cutting-edge science and technology, military production and all kinds of high-demand industrial fields, many engineers will prefer with FEP cable.
2. Key Characteristics of FEP Cables
Electrical Properties
- Breakdown Voltage: 25KV/mm (20℃)
- Spezific Volume Resistivity Ohm*cm (20℃): 10^18
- Dielectric Constant 50Hz (20℃): 2.1
- Dielectric Factor: 3×10^-4
Thermal & Fire Resistance
- Working Temperature: -100°C to +205°C
- Melt-temperature: 230℃
- Flame Retardancy: Self-extinguishing
- Halogen-Free: NO
Mechanical & Chemical Resistance
- Tensile Strength (N/mm2): 15-25
- Elongation at break %: 250
- Shore hardness: 55-60(D)
- Corrosion Behavior: Very Good
Weather
- Weather resistance : Very Good
- Cold Resistance: Very Good
3. Comparison: FEP vs. Other Cable Insulation Materials
| Property | FEP | PVC | Silicone Rubber |
| Temperature Resistance | -100°C to 205°C | -30°C to 70°C | -60°C to 200°C |
| Flexibility | Moderate | Moderate Good | Excellent |
| Flame Resistance | Self extinguish | Flammable | High flash point |
| Tensile Strength | 15-25 | 10-25 | 5-10 |
| Cold Resistance | Very Good | Moderate Good | Very Good |
| Weather Resistance | Very Good | Medium in black | Good |
4. Common Applications of FEP Cables
- Equipment control cabinets with high thermal effects
- In brick and tile factories, water heaters and kitchen equipment and measuring equipment and in the chemical industry
- Aerospace Industry
- Military
- Race Car Wiring
5. Conclusion
FEP cables are characterised by excellent electrical properties, flame retardancy, weather resistance, ozone resistance, low and high temperature resistance. However, this type of cable also faces challenges such as high processing requirements and high cost. Looking for a suitable FEP factory? Feel free to contact us.
