When considering insulation, what is a critical factor related to electrical wiring systems?

In the context of insulation and electrical wiring systems, proximity to live wires is crucial due to safety concerns and the potential for electrical hazards. When insulation is installed close to live electrical wires, it must be capable of handling heat generated and the electrical fields produced without degrading. This is important because insufficient separation can lead to insulation breakdown, overheating, or even electrical arcing, which poses risks of electric shock or fire.

Insulation materials used in electrical systems are designed with specific standards to ensure they can tolerate heat and maintain electrical integrity when in contact with or near live components. While other factors such as the thickness of insulation, the type of insulation material, and the method of installation are important for performance and energy efficiency, the immediate concern regarding safety and preventing adverse interactions stems primarily from the insulation's proximity to live wires. Ensuring adequate space and correct type of insulation can protect against electrical failure and enhance overall system safety.