This research brief was created as part of Clear Roads project CR16-06, "Training Video for the Implementation of Liquid-Only Plow Routes," published May 2018.
This research brief was created as part of Clear Roads project CR16-04, "Emergency Operations Methodology for Extreme Winter Storm Events," published May 2018.
This research brief was created as part of Clear Roads project 15-03, "North American Study on Contracting Snow and Ice Response," published in January 2017.
This research brief was created as part of Clear Roads project 16-03, "Mobile Technologies for Assessment of Winter Road Conditions," published March 2019.
This research brief was created as part of Clear Roads project CR15-02, "Identification and Recommendations for Correction of Equipment Factors Causing Fatigue in Snowplow Operations," published November 2017.
This research brief was created as part of Clear Roads project CR15-01, "Synthesis of Material Application Methodologies for Winter Operations," published April 2019.
The electrical connectors of lighting systems used on snowplows and other winter maintenance equipment are exposed to the elements during winter operations. While lighting systems can fail because of mechanical or environmental issues, a more significant concern is the impact of corrosion.
A survey of winter maintenance professionals and review of relevant literature gathered information to aid transportation agencies in reducing—or avoiding—the corrosion of electrical connectors. The survey received responses from almost two-thirds of the 38 Clear Roads members and a small number of other agencies. Respondents described up to three electrical connector products their agencies use. Deutsch (TE Connectivity) and Weather Pack (Aptiv) connectors are the most frequently used by respondents, who also reported using a range of other connectors.
Respondents’ best practices to avoid corrosion of electrical connectors were often echoed in the literature:
• Relocate electrical connectors to the interior of the vehicle’s cab or other protected areas.
• Use modular electrical systems that can expand easily through standardizing wiring segments with connectors and have reservoirs of dielectric grease to deter moisture.
• Insulate electrical lighting and harness connectors with heat shrink tubing or use waterproof electrical connectors and high-quality, weatherproof terminals with dielectric grease.
• Avoid piercing or slicing cable wiring, which can open areas to corrosion.
• Inspect cables and wiring regularly for oxidation, corrosion, loose connectors and broken wires.
• Clean (and replace, if necessary) connectors frequently and apply dielectric grease or spray after cleaning.
• Establish a preventive maintenance program that maintains the vehicle’s electrical system throughout the year.
