Cable Terminal, welding, copper terminals, external terminals have many problems.
   
Cable terminations, the number of head we are talking about cable calculations, a cable has two tall son, so it is two terminal head, the middle because the cable length and other reasons, need to set the middle of the head, that is, the cable the middle of the head.
   
External wiring of the terminal board wiring is copper rafts. Welding of copper terminals is to use a welding method to connect, there is a hydraulic crimping copper nose. Cable Terminal leads from the power distribution room, or distribution cabinet to the loop of the distribution box or distribution box and distribution box connected each two cable terminal head, which refers to the construction of a single work their own production the cable terminal head rather than buy the finished cable gloves, in the case of finished the main material to be included, of course, off-site construction may be the cable is too long and need to increase the cable middle head system security. Terminals of the welding of copper means more than 6mm2 copper wire multi-strand or cord pressure clamp pressed into copper terminals. 6mm2 following copper cord, wire, such as BVR4/BVR2.5 specifications then the zero or ground terminal board installed only in the distribution box shall be calculated on the external wiring of the terminal board terminals, the zero line can only calculate terminal board external connection terminal.
   
To say only whether the external wiring terminals on the terminal board of the fixed before implementation.