What Protective Measures Do Wire And Cable Manufacturers Take To Protect Cables?

It is used to protect cables from moisture that can affect the insulation. Cable jackets are made of lead alloys that are strong enough to withstand the internal pressure of pressurized cables. The material used for the inner sheath should be non-magnetic.

Aluminum sheathing is also used in power cables (twin and earth 4mm2 armored cable, copper armored cable 4 core 25mm2) because it is cheaper, lighter and mechanically stronger than lead sheathing. In cables and phones, cables use corrugated seamless aluminum sheathing because of its better bending properties, thinner thickness, and lighter weight.Lead-sheathed cables laid directly on the ground can be damaged by corrosion and electrolyte. To protect cables from corrosive layers of fibrous materials (such as paper, burlap, etc.) or PVC.

Armoring: Armoring is the process of applying a layer of galvanized steel wire or two layers of metal tape to a sheath to protect it from mechanical damage. Steel wire is often used for armoring (steel tape armored cables) because of its high longitudinal strength. Armoring is also used for cable grounding.

When a cable fails (due to insulation failure), fault current flows through the armor and to ground. The specifications of armored cables include armored cable 4 core, 16mm2 armored 4 core aluminum cable, 16mm armored cable 3 core, 2.5mm 3 core armored cable, etc.

It gives the cable mechanical strength. It protects the cable from overall damage such as moisture, corrosion, dirt, dust, etc. Thermoset or thermoplastic materials are used to make the sheathing.