In all kinds of aerospace and defense equipment, the use of electrical connectors is large, especially the use of electrical connectors on aircraft. Generally speaking, the use of an aircraft electrical connector can reach hundreds to thousands of pieces, involving tens of thousands of lines. Therefore, in addition to meeting the general performance requirements, the particularly important requirement is that the electrical connector must be in good contact, reliable, easy to maintain, and its reliability directly affects the normal operation of the aircraft circuit.


　　It involves the safety of the whole host. For this reason, the host circuit has very strict requirements for the quality and reliability of electrical connectors, and it is also widely used in military systems such as aviation, aerospace and national defense because of the high quality and high reliability of electrical connectors.

　　Connector testing generally involves the following items: plugging force test, durability test, insulation resistance test, voltage resistance test, vibration test, mechanical shock test, cold and hot shock test, mixed gas corrosion test, etc.

　　The specific test items of connector are as follows: plug force test reference standard: EIA-364-13purpose: verify that the plug force of connector conforms to the principle of product specification: plug or pull the connector completely at the specified rate, Record the corresponding force value durability test reference standard: EIA-364-09 purpose: evaluate the impact of repeated plugging on connector, simulate the actual use of connector plugging principle: according to the specified rate of continuous plugging connector until the specified number of times. Insulation resistance test reference standard: EIA-364-21 purpose: to verify that the insulation performance of the connector meets the requirements of circuit design or withstand high temperature, humidity and other environmental stresses, its resistance value conforms to the relevant technical conditions. Principle: the resistance value presented by applying a voltage to the insulation part of the connector so that the surface or interior of the insulation part produces leakage current. Voltage resistance test reference standard: EIA-364-20 purpose: to verify whether the connector can work safely at rated voltage and can withstand overpotential, To evaluate the suitability of connector insulation material or insulation gap: apply a specified voltage and maintain a specified time between a specified time to observe whether the sample has breakdown or discharge.

　　Contact resistance test reference standard: EIA-364-06/EIA-364-23 purpose: to verify the principle of resistance when the current flows through the contact surface of the contact member: by specifying the current to the connector, By measuring the voltage drop at both ends of the connector, the reference standard of resistance value vibration test is obtained: EIA-364-28 purpose: to verify the effect of vibration on the performance of electrical connectors and their components, vibration type: random vibration, sinusoidal vibration mechanical shock test reference standard: EIA-364-27 purpose: to verify the impact resistance of connectors and their components or to assess whether their structures are firmly tested waveform: semi-sinusoidal wave, reference standard for square wave cold and hot shock test: EIA-364-32 purpose: to evaluate the connector under the rapid large temperature difference change, EIA-364-31 purpose: to evaluate the effect of connectors on connector performance after storage in high temperature and high humidity environment high temperature test reference standard: EIA-364-17 purpose: to evaluate whether the terminal and insulator properties of connectors change after exposure to high temperature environment at a specified time salt spray test reference standard: EIA-364-26 purpose: to evaluate connectors, Terminal, Test reference standard for corrosion resistance of mixed gases: EIA-364-65 purpose: to evaluate the corrosion resistance of connectors exposed to different concentrations of mixed gases and its influence on their properties: EIA-364-41


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