What is the correct procedure for installing heat-shrink conductors?

The correct procedure for installing heat-shrink conductors involves slipping the insulator over the connector and then applying heat for a few seconds. This method is crucial because heat shrink tubing is designed to shrink and conform tightly around the conductor when exposed to heat. The heat causes the material to contract, creating a secure and moisture-resistant seal around the connector, which is essential for preventing corrosion and maintaining connection integrity.

Applying heat before inserting the conductor will not allow for a proper fit as the tubing may have already shrunk and become rigid, making it impossible to slide over the connector. Soaking the insulator in water is unnecessary and could compromise the insulation properties, as water may linger inside and promote corrosion or degrade the material. Using a lubricant could also be counterproductive, as it may interfere with the adhesion of the heat shrink material when it is heated, preventing a proper seal.

Therefore, slipping the insulator over the connector first and then applying heat ensures that you achieve the correct fit and effective sealing for the connection, which is critical for reliable electrical performance.