Why must the correct insulation type be used for distribution conductors?

Using the correct insulation type for distribution conductors is essential because it ensures that the conductors can safely withstand the voltage levels they are subjected to, as well as the specific environmental conditions in which they are installed. Different insulation materials have varying tolerances to temperature, moisture, chemicals, and mechanical stresses.

When insulation is not appropriate for the conditions, it can lead to insulation breakdown, which increases the risk of electrical faults, short circuits, or even fire hazards. For example, certain insulation types are designed to resist UV radiation if installed outdoors, while others may be more suitable for high-voltage applications. Therefore, selecting the right insulation is critical for the long-term safety, reliability, and efficiency of electrical distribution systems.