This paper studies the environmental adaptability of different sealing techniques for electric connector cables in marine atmospheric environment.The GJB599 series circular connectors commonly used in aviation were selected,and four different cable sealing protection measures were implemented.The natural environmental exposure test was carried out in a natural exposure station in the South China Sea for three years.The environmental adaptability of different cable sealing protection technologies was verified by testing the changes of insulation resistance and withstand voltage test results of electrical connectors.There is a certain deviation between the test results and the accelerated test of simulating marine environment in the laboratory.Through the cause analysis and comprehensive evaluation of the test results,some practical suggestions are given for the follow-up research and application of connector cable sealing.
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