Power Cable China

Detailed Description of the Cable Process

electric wire manufacturer


The electrical power cable’s process flow is not simple. The technological process of wire and cable is as follows. Copper rod – Tie rod- stranding – insulation – spark – cable – inner sheath – metal armoring – outer sheath. I’ll explain these processes one by one. The copper rod is the raw material, so, it does t have to be explained.

Tie rod

The first step of making an electrical cable line is drawing. The Tie rod means is draw the rods and making them become various specifications’ thin wire.


The second step of making an electrical wire is stranding. Stranding means stranding thin conductor wires together after drawing them.


The third step of making an electrical cable is insulation. Insulation means wrapping the stranded wire with insulating material. There are many kinds of insulating materials. They are PE, PVC, XLPE, and so on. Among them, XLPE has the best performance and is the most widely used.


The fourth step of making an electrical power cable is the Spark test. Spark test is a real-time voltage test in power cable manufacturing. It’s a very important part of it.


The fourth step of making an electrical power cable is that makes the cable after the spark test becomes various specifications. Sometimes, there is a step to add shielding before the various specifications of the cable are made. There are many types of shielding, and different types of shielding are used for different cables.

Inner Sheath

The fifth step of making an electrical power cable is the inner sheath It’s under the metal armor. It can play the role of gasket metal armor, and can also be used for corrosion protection of metal sheath.

Metal Armoring

The sixth step of making an electrical power wire is metal armoring. Metal armoring materials mostly use galvanized steel strips or galvanized steel wire. Metal armor can protect cables from damage caused by mechanical action. Metal armoring is subdivided into steel tape armoring (STA) steel wire armoring (SWA) aluminum tape armoring (ATA) aluminum wire armoring (AWA). Different types of metal armor are used for different electrical cables.

Outer Sheath

The seventh step of making an electrical power cable is the outer sheath. The outer sheath is the outermost protective sheath of the cable. It protects the metal armor from erosion. The outer sheath materials are mostly PE, PVC, XLPE, and F. Under the premise of considering the cost performance, the general outer sheath uses PVC as the material.

The cabling process is introduced here. If you have any ideas, you can consult me and I will be happy to answer them for you. In addition, our company has been committed to cable trade, our price and transport speed are the best in the industry. Welcome to consult the price.