Functions of Insulators:
Insulators play a crucial role in electrical systems by providing insulation and preventing electrical current from flowing where it is not intended to. The main functions of insulators are as follows:

Provide electrical insulation:
Insulators are primarily used to provide electrical insulation in various applications. They are designed to resist the flow of electrical current and maintain a high level of electrical resistance, preventing the flow of electricity through them. This is essential for ensuring the safety and proper functioning of electrical systems.

Prevent current leakage:
Insulators help to prevent current leakage at interfaces by creating a barrier that restricts the flow of electrons between conductive materials. This is important for maintaining the integrity of electrical circuits and preventing short circuits or other electrical malfunctions.

Isolate conductive materials:
Insulators are used to isolate conductive materials from each other to prevent unwanted electrical contact. By creating a physical barrier between conductors, insulators help to maintain the desired electrical paths and prevent interference or cross-talk between different parts of a circuit.

Protect against environmental factors:
Insulators also serve to protect electrical components and systems from environmental factors such as moisture, dust, and other contaminants. By forming a protective barrier around conductors, insulators can help to prevent damage and ensure the long-term reliability of electrical systems.
In conclusion, insulators are essential components in electrical systems as they provide insulation, prevent current leakage, isolate conductive materials, and protect against environmental factors. Their role in ensuring the safe and efficient operation of electrical systems cannot be overstated.