What is Armored Cable Technology?

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The process of armored cable is to add a metal armor layer to the outer sheath of the cable. The following will introduce the outer sheath materials of the armored cable, as well as the structure and use of the outer sheath of the armored cable.


1. Outer sheath material of armored cable

1. Fiber material

(1) Paper: Cut from cable paper with a thickness of 0.12 mm.

(2) Hemp: cable hemp made of jute.

2. Metal materials

The metal materials used in the outer sheath are mainly steel strips, steel wire, aluminum strips (aluminum alloy strips), etc.


Steel belt

Steel strips are cold-rolled steel strips, painted steel strips, and galvanized steel strips.

Cold rolled steel strip

It is made of hot-rolled steel strip after cold rolling, and is mainly used for painted steel strips and galvanized steel strips for processing cable armor layers.

Painted steel strip

It is made by forming paint film on cold rolled steel strip by dip-coating method or electrophoresis method. Specifications and dimensions are the same as cold-rolled steel strips.

The tensile strength of the painted steel strip should not be less than 300 N/mm2, and the elongation should not be less than 20%.

Galvanized steel strip

The galvanized steel strip is made of a cold-rolled steel strip coated with a zinc layer. There are hot-dip plating (R) and electroplating (D).

The specifications, dimensions, and mechanical properties of the steel strip are the same as those of the cold-rolled steel strip.

The galvanized layer of the steel strip shall be uniform and complete, and there shall be no peeling, cracks, rust, and missing plating of the zinc layer, but defects such as individual missing plating points are allowed.

Steel wire

Galvanized steel wire for armoring is made of low carbon steel hot-rolled round wire rod.

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