Havells Lt Aluminum Armoured Cable

1. Scope Cable covered in this catalogue are manufactured and tested as per IEC 60502-1 & 2 and BS 5467 however, Havells can suppy XLPE/PVC insulated cables as per any other International & as per customer specification. 2. Construction & Material a) Conductor - Material of conductor shall be aluminium or plain annealed Copper - Shape of conductor shall be solid/stranded circular compacted & non compacted/stranded shaped compacted as per class -1 & Class-2 of IEC 60228 or BS 6360 b) Conductor Screening -All the cable s of rated voltage above 1.8/3.0 kV grade shall be manufactured with conductor screening which shall be consist of extruded layer of semiconducting compound confirming to IEC 60502-2 c) Insulation - The insulation shall be cross linked polyethylene (XLPE) confirming with the test requirement if IEC 60502 & IEC 60811 d) Insulation Screening All the cables of rated voltage above 1.8/3.0 kV grade shall be manufactured with conductor screening which shall be consist of not metallic part in combination with metallic part. The nonmetallic part shall consist of extruded layer of semiconducting compound as per IEC 60502-2. The metallic part shall consist of one or more layer of copper tapes & shall be applied helically over non metallic part. In order to meet the requirement of desired short circuit level of screen, concentric layers of copper wire may be applied with combination of copper tape. The avoid the cavities & voids formation in dielectric particularly on bending operation of cable, perfect bonding of layers of conductor screen, insulation & insulation screen is perferred. To ensure this, Havells applying three layers in one operation through tripple head extrusion. e) Core Identification - The core of cable of rated voltage below 1.8/3.0 kV grade shall be identified with Red, Yellow, Blue & Black coloured core - The Red, Yellow & Blue Coloured strips applied above nonmetallic part of insulation screening for rated voltage of 3.6/6.0 kV & above. f) Inner Covering - Inner covering shall be applied under armour & shall be consist of extruded/tapped layer of PVC as per IEC-60502 g) Armour Armour shall be as per IEC 60502 of following type - Round steel wire or flat steel strip - Double layer of metallic tape Material of armour shall be galvanized steel for Multicore cable & Aluminium for single core cables h) Outer Covering - All cables are normally provided with an extruded layer of PVC of black colour - Material of outer covering shall be PVC confirming to type-ST-2 of IEC 60502 Other material such as Flame Retardent Low Smoke PVC, anti-rodent & anti-termite PVC, Ultraviolet resistant PVC etc. also provided on request