Plastic and porcelain are types of what in electrical applications?

In electrical applications, plastic and porcelain are classified as insulators due to their ability to resist the flow of electric current. Insulators are materials that do not allow electric charge to flow freely, making them essential for preventing unwanted electrical leakage and ensuring safety in electrical systems. Plastic is widely used in various components such as wire coatings and enclosures, while porcelain is often employed in insulators for overhead power lines and electrical fixtures. Their high dielectric strength and thermal stability make them ideal for protecting conductive parts from each other and from external environments, thereby maintaining the integrity and efficiency of the electrical system.