Cable Insulation Breakdown: Causes and Long-Term Solutions
Insulation breakdown in electrical cables is a critical fault that compromises the performance, safety, and reliability of power distribution, control, and communication systems. This phenomenon, which can lead to leakage currents, short circuits, or complete system failure, is particularly concerning in low-voltage (0.6/1 kV) and medium-voltage (3.6/6 kV to 26/45 kV) cables. Understanding the causes and implementing long-term solutions is essential for ensuring a cable lifespan of 25–30 years and compliance with standards like IEC 60502. This guide provides a comprehensive analysis of insulation breakdown, its causes, and effective prevention strategies, presented in a formal and structured manner. Table of Contents 1. Overview of Insulation Breakdown 2. Causes of Insulation Breakdown 3. Long-Term Solutions for Prevention 4. Testing and Monitoring Techniques 5. Standards and Compliance 6. Challenges and Solutions 7. Conclusion 1. Overview of Insulation Breakdown Insulation break...