What is the compression mechanism of a terminal block?

Alphanumeric symbols to mark the principles and methods of terminals, a single component of the two endpoints with two consecutive figures. The middle of a single component terminals with a natural progression of the number of digital representation. The same component group, in front of the number of letters, such as the sign of the three-phase AC system letters U1, V1, W1 and so on. If there is no need to distinguish between phases, the numbers 1.1, 2.1, 3.1 can be used to mark. Groups of components of the same type. Marking of electrical terminals connected to specific wires. Terminal compression mechanism is the conductor and the conductive strip between the pressure generated by the mechanism, only to generate sufficient pressure to ensure low contact resistance, the formation of a good connection, so the reliability of the compression mechanism directly affects the conductor connection is good or bad. For threaded terminals, screws, copper columns and pressure plates are important components of the compression mechanism; for non-threaded terminals, springs or spring cards are important components of the compression mechanism. Non-threaded terminals, the compression mechanism is mainly spring, so the selection of the spring is crucial, both to ensure that there is enough contact pressure, to ensure that there will not be excessive damage to the wire, the spring terminal is currently more reliable non-threaded terminals. Into the line, you can push the block or screwdriver to press the spring, into the line, release the spring, the use of the spring's pull back tightly to the wire pressure, generating sufficient contact pressure, and then use the edge of the spring to pinch the wire, so that it will not be loose or artificially pulled out.

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