How should heat-shrink insulators be properly installed over connectors?

The proper installation of heat-shrink insulators involves slipping the insulator over the connector and then applying heat for a few seconds to shrink it tightly around the connector. This method ensures a secure fit that protects the electrical connections from moisture, dust, and other environmental factors that could lead to corrosion or electrical failure.

When heat is applied, the shrink tubing reduces in diameter and conforms closely to the shape of the connector, creating a snug and effective barrier. This process is essential for maintaining the integrity of the electrical connection and ensuring reliable performance over time. It also distributes any stress evenly, reducing the risk of damage to the connector and improving overall durability.

Other methods mentioned, such as applying adhesive or heating the connector before placing the insulator, do not achieve the same secure fit and protection level as the correct approach. Tightening with a clamp would not ensure the heat-shrink properties are utilized effectively and may create points of stress rather than enhancing the protection of the connection.