Conductors :
Wiring Cable conductor are stranded, high conductivity plain annealed copper wires meeting the requirements of the class in BS 6360 and IEC 228 specifications for "Conductors in insulated cables with solid copper conductors are offered up to 2.5 Sq.mm.

Insulation:

The insulation of standard wiring cables is PVC grade Type T1 1 of Bs 7655 Formerly BS 6746) suitable for a maximum continous conductor operating temperature of 70C

Where specifically required, wiring cables can be offered with heat resistance PVC insulated grade. Type 5 (85 cType T1 3 (90 c). These cables are identified by the grade of PVC.

Finish:

Wiring cable, both sheathed and unsheathed have a smooth finish and are countinously marked with TERA CAB by printing or embosing on the external surface.

Where a PVC sheath is required on wiring cable, it is extruded layer of PVC grade Type TM 1 or TM6, as applicable.

The PVC sheath colour of multi cable is grey, white or black and for single core cables it is black, brown, grey, red or white.

The above wiring cables conform to BS 6004 specification of PVC insulated cables (non-armoured) for electric power and lighting. The Cables also generally satisfy the Inernational Specification IEC 227 (6491 X only) and German standard VDE 0281 for "PVC Insulated Cables and cords rated voltage not exceeding 750V".