The main manufacturing technology of cable

The shielding of 1.8/3kV and the special cable for the special cable for the following frequency conversion motor is generally shielded by total shielding. The shield of special cable for 6/10kv inverter motor is made up of phase separation shielding and total shielding. The phase shielding shield generally can be shielded with copper ribbon or copper wire. The total shielding structure can be composed of copper wire and copper band combination shielding, copper wire woven shielding, copper ribbon shielding, copper wire woven copper ribbon shielding, shielding layer section and the main line core section in a certain proportion. The shielded cable of this structure can resist electromagnetic induction, poor grounding and power line conduction interference, reduce inductance and prevent induced electromotive force. Shielding layer not only plays an important role in restraining electromagnetic wave's external emission, but also acts as a channel for short-circuit current. It can protect the neutral core.

6/10kV frequency conversion motor special cable, considering that the cable is often subjected to radial force during the use process, the galvanized steel strip pin layer is added outside the shield layer of the cable (adding isolation sleeve between the shielding layer and the steel strip pin layer). The steel strip pin is mainly used as the radial mechanical protective layer of the cable. At the same time, it also plays an additional shielding effect, especially the steel belt armour and copper wire and copper ribbon shielding. It is used two different shielding materials, and plays a complementary role on the electromagnetic shielding, and the shielding effect will be better.

In the production process of special cables for variable frequency motors, the core process is the insulation core extrusion process and the cable formation process. The insulation core quality of the insulated core extrusion process will directly affect the electrical performance of the cable. In order to improve the quality of the cable, we choose the production of high electrical insulation material, such as the special cable for 1.8/3kv frequency conversion motor, 10kV crosslinked insulating material, and 35kV crosslinked insulating material for the special cable of 6/10kv inverter motor. The conductor shielding, insulation shielding and insulating material all use the imported materials. In the process of production, we pay special attention to the purification of raw materials, the shielding and insulation material squeezing tightly, control the uniformity of the insulation eccentricity and insulation outer diameter, so that the interface effect can be reduced and the electrical performance of the cable is improved.

SITONG CABLE is a professional overhead line cable manufacturer with years‘s experience. Our main products: AAC,AAAC,ACSR,Guy wire, Stay wire, ABC cable, Concentric cable, Electric wire. We warmly welcome customers to visit factory research on cable production technology