What are the four common environmental performance indicators for waterproof connectors?

I. What are the four common environmental performance indicators of waterproof connectors? Common connector environmental performance indicators of the four major points: including moisture resistance, temperature resistance, salt spray resistance, vibration resistance and shock resistance, etc. 1, moisture resistance: moisture intrusion on the connector insulation performance has a great impact, easy to corrode metal parts. Constant humidity and heat test conditions for relative humidity at 95% (according to product specifications, up to 98%), the temperature of +40 ± 20oC, the test time according to product regulations for the lower limit of 96h. Alternating humidity and heat test is more severe. 2, temperature resistance: the current upper limit of the connector operating temperature of 200oC (in addition to the high-temperature special connectors), the lower limit of the temperature of -65oC. Due to the connector when working, the current in the When the connector works, the current in the contact point to generate heat, resulting in temperature rise, so it is generally believed that the operating temperature should be equal to the ambient temperature plus the temperature of the contact point. 3, salt spray: connectors in the environment containing moisture and salt work, its metal structural components, contact surface plating is very much produced galvanic corrosion, affecting the physical and electrical properties of the connector. Salt spray test is the connector suspended in a temperature-controlled test chamber, with a specified concentration of sodium chloride solution sprayed with compressed air, the formation of salt spray atmosphere, the exposure time specified by the product specification, at least 48h. 4, vibration and shock resistance: vibration and shock resistance is an important electrical connector performance, in special applications such as aviation and aerospace, railroads and highway transportation is particularly important, it is a test of the mechanical structure of the connector and the robustness of the electrical connector, the electrical connector. Connector mechanical structure of the robustness and electrical contact reliability of the important indicators.

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