What type of insulation material would you expect in cables designed for high voltage applications?

In high voltage applications, insulation materials need to provide excellent electrical resistance, durability, and thermal stability. PVC (polyvinyl chloride) and thermoplastics are commonly used in this context because they offer good dielectric properties, which are crucial for preventing electrical leakage and breakdown.

PVC is widely utilized for its strong insulation qualities and resistance to moisture, chemicals, and abrasion. These properties make it suitable for high voltage applications where environmental conditions can vary.

Thermoplastics, like polyethylene and polyolefin, also provide effective insulation due to their high dielectric strength. They are flexible, can withstand high temperatures, and are less prone to cracking, making them reliable choices for high voltage cables.

Using both PVC and thermoplastics allows for a synthesis of their beneficial characteristics, enhancing overall cable performance in high voltage systems. In contrast, materials such as rubber, while useful in some applications due to their flexibility and waterproofing capability, may not consistently provide the same level of performance required for high voltage insulation. Therefore, the combination of PVC and thermoplastics is preferred for ensuring safety and functionality in high voltage scenarios.