What Is 4 Core Armoured Cable Used For?

Armoured or screened cable, such as a 4mm 4 core cable, are cables used in electrical applications where there’s a need for greater protection of the cable. You’ll see electricians commonly use them, such as 25mm armoured cable 4 core, in environments where the cable might sustain unusual amounts of stress or tension. The stress to the cable might arise at installation, when cables are tugged and pulled, or during operation when weights and tension bear on the cable.

A 4 core screened cable might also be used to protect cables from electrical magnetic interference (EMI) from other nearby sources of electricity. For example, if you used two sets of a 4 core 35mm armoured cable to power two sets of sensitive electrical equipment, there would be less electrical interference between the two (low cross talk). Unshielded cables might, on the other hand, compromise the integrity of the application.

Another great use of armoured 4 core copper cable is in underground applications. Typically, because those cables experience wet and harsher conditions than indoor cables, the cables need extra layers of protection. A 4 core shielded cable provides that additional protection is better than an unshielded version.