Terminal shape looks simple, but the terminal must also undergo rigorous testing and product validation experiments cyclical production patterns . This paper describes the content of the mechanical properties of terminals , electrical and environmental performance testing methods and criteria .

Mechanical Testing

1, torque test (Tightening Torque Test)
The purpose of testing is to test the torque screw has sufficient mechanical strength to ensure the wire does not slip phenomenon occurs in the course of the pressure line , if the screw is not broken after the test , deformation, no damage to the screw head grooves affect the continued use of the phenomenon , is qualified .

2, the pressure line reliability test (Secureness TeST)
The purpose of the pressure line reliability test is to test whether the terminal to clamp the wire but not excessive damage wires. Terminal connected to the specified type and nominal cross-sectional area of the wire , hang some weight to 10 revolutions per minute (10 ± 2r/min) the speed of rotation, continuous 15min. After the test , if the wire does not slide clamp terminals , there is no break in the vicinity of the clamping member , the pressure line terminal reliability is qualified. If there is a wire break or fall off the terminal clamping mechanism , it is unacceptable.

3, the pull-out test (Pull Out Test)
The purpose of the test is to pull the test terminal can be firmly clamped between the metal wire surface . Specifies the type of the access terminal and the cross-sectional area of ​​the wire rated , use a certain force (lkgf), in an axial direction of the wire to pull the wire , kept 1min. If the wire does not fall out of the terminal , it is qualified .

4 , the mechanical strength test (Mechanical Strength Test)
The purpose is to test the mechanical strength test whether the terminal has sufficient mechanical strength , especially if the test terminals of the housing has a sufficient mechanical strength. During the test , the sample was placed in a drum test device, 5 the rotation speed rpm , for 5 minutes after the sample was taken off was observed , if the terminal is not damaged , the housing cracks , damage, etc. ,it is qualified .

5 , the mechanical life test (Fatigue Test)
The purpose of the test is mechanical life test terminals elastic element , can withstand a certain number of plug or other mechanical operations use, such as compression and release the spring-loaded terminal buttons. If the elastic element to the terminal after the test assembly , the mechanical and electrical performance should meet the requirements , it is qualified .