Views: 9 Author: Site Editor Publish Time: 2019-10-26 Origin: Site
The terminal wiring refers to the multi-strand wire of 10 square meters or more and the soft control cable of 6 square meters or less connected to the terminal board, because a single multi-strand wire cannot be directly connected to the electric equipment according to the electrical specification.
Terminalless wiring mainly refers to a single strand of wire below 6 squares connected to the terminal board.
The first thing to look at is the insulation of terminal block. Insulation is very important for the safety of switch sockets, but it is difficult for ordinary consumers to judge. It is of course best to do a combustion test on the core components at the time of purchase. But when there is no condition, it can be judged by the appearance. A good material is generally hard and difficult to scratch, the structure is tight, and the weight is heavy after molding. Good resin material has characteristics of flame retardant, anti - arc, heat - resistant, hard.
The copper of the terminal block, although not visible at the time of purchase, is crucial for the socket. The easiest way to judge is to use a plug to try out whether the insertion force is moderate, and then rub it with your hand to judge the socket is really a bit heavy.
To choose a quality terminal block, you must first consider the power handling factor. Buyers can't just read the data sheet simply, which can't guarantee the correct comparison data. It is also necessary to know how the product function data listed in the manual is tested and determined.
About cable terminations, soldered copper terminals, external terminals, etc.
The calculated number of cable terminals, as well as external terminal blocks, internal contact terminals, soldered copper terminals and other concepts:
The number of cable terminal heads is calculated by cable. One cable has 2 heads, it is 2 terminal heads. If the middle head is needed because of cable length and so on, it is the middle head of the cable!
The external wiring of the terminal block is to be wired on the copper bar!
Solder copper terminal blocks are usually connected by soldering, and another way is to use a hydraulic press to crimp the copper nose!
The cable terminal is the circuit that leads from the power distribution room or the power distribution cabinet to the distribution box, or the connection between the distribution box and the distribution box. Each cable has two cable terminals, which refer to the cable is made by the construction worker instead of buying finished cable gloves, only if the finished main material is to be extra.
The copper soldering terminal refers to a copper core wire of 6 mm2 or more, which is a copper terminal block made of a multi-strand wire or a cord pressured by clamp.
Copper core cords up to 6mm2, such as BVR4/BVR2.5 and other specifications, whether the external wiring of the terminal board has terminals can only be calculated if there is a terminal in the distribution box connected to the zero or the ground terminal board. The external wiring of the terminal board can be calculated with BV2.5 neutral line. Only the 94 rating can be implemented whether there has terminals for the external wiring of the terminal board. The 03 quota has been canceled.
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