A recent Clear Roads synthesis project surveyed state DOTs with winter maintenance programs about their best practices for avoiding corrosion of electrical connectors.
Common agency practices for reducing corrosion include installing a waterproof or weatherproof connector, using dielectric silicone and dielectric grease for sealing connections, and applying a heat shrink tubing to cover the crimped or soldered area where a new terminal meets a wire.
Read the synthesis report: Avoiding Corrosion of Electrical Connectors on Winter Maintenance Equipment, January 2023.
Image source: Clear Roads