How harsh an environment can the connector be used in

We all know that the general wire or charging line in the bad situation is not to support a long time, in the life of the earth inside a variety of environments, then the connector is better is also applicable to a variety of environments is better, the connector can be used in which case under what circumstances it is? 1. Temperature resistance of the connector's higher operating temperature of 200 ℃ (except for a small number of high-temperature special connectors), the lower temperature of -65 ℃. Temperature Resistance As 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 and the temperature rise of the contact point and the sum. In some specifications, it is specified that the connector in the rated operating current under the allowable higher temperature rise. 2. Resistant to moisture moisture intrusion will affect the connection h insulation properties, and corrosion of metal parts. Constant humidity and heat test conditions for relative humidity 90% ~ 95% (according to product specifications, up to 98%), temperature +40 ± 20 ℃, the test time according to product regulations, at least 96 hours. Alternating humidity and heat test is more demanding.3. Salt spray connector containing moisture and salt in the environment, its metal structure, contact surface treatment layer may produce galvanic corrosion, affecting the connector's physical and electrical properties. In order to evaluate the ability of electrical connectors to withstand this environment, the salt spray test is prescribed. It is the connector suspended in a temperature-controlled test chamber, with a specified concentration of sodium chloride solution with compressed air spray, the formation of salt spray atmosphere, the exposure time specified by the product specification, at least 48 hours.4. Vibration and shock vibration and shock resistance is an important performance of the electrical connector, in special application environments, such as aviation and aerospace, railroads and highway transportation is particularly important, it is the test of the electrical connectors mechanical It is to test the mechanical structure of the electrical connector and the robustness of the electrical contact reliability of the important indicators. In the relevant test methods have clear provisions. Impact test should be specified in the peak acceleration, duration and impact pulse waveform, as well as the time of electrical continuity interruption.5. Other environmental performance according to the requirements of the use of electrical connectors and other environmental performance sealing (air leakage, liquid pressure), liquid impregnation (on the specific liquid resistance to abusive chemical ability), low air pressure and so on.

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