Polyvinyl Chloride (PVC) insulated and sheathed cables are used in a wide variety of applications from fixed wiring to flexible installations, and are available in a number of sizes, colours and conductor materials.
The armour provides additional protection where mechanical stress has the potential to cause damage to the cable, such as direct burial, outdoors or underground. The armour also enables the cable to withstand higher pulling loads. It should be noted, however, that the armour provides no protection for climatic conditions.
If protection of equipment or people is a design requirement, consider low-smoke zero-halogen (LSZH). They emit fewer toxic fumes than standard PVC-based cable. Typically, LSZH cable is used in confined spaces such as mining operations where ventilation is of concern.
XLPE is Cross-linked Polyethylene. The process of cross-linking consists of producing chemical bonds at intervals between the long molecular chains which prevents slippage between molecules. As a result of cross-linking, the material becomes heat resistant and does not soften at high temperatures. It develops resistance to stress cracking and ageing.