::PVC & XLPE Insulated Low Voltage control And Auxiliary Cables :: 600 / 1000 V as per BS : 5457, BS: 6346, IEC : 60502 (I)
Manufacturing And Construction Detail
Conductors :
The conductor are bunched seven wire strands, made from high conductivity plain annealed copper wires and meet the requirments of BS 6360 specification for "Conductors in insulated cables and cords "and also IEC 228 specification.
Insulation:
According to its particular standard specification, a cable will be insulated with either: XLPE (Cross-linked polythene) or PVC (Polyvinyl Chloride)
PVC is suitable for a maximum continous operating temparature of 70° c. XPLE is suitable for a maximum continous operating temparature of 90° c.
Core Identification :
Core identification is as follows unless otherwise specified:
Number of Cores
Core Indentificaion
Control Cables
Two
: Red and Black
Three
: Red,Yellow and Blue
Four
: Red, Yellow, Blue and Black
Auxiliary Cables
Five and more
white cores with number printing in black
Fillers
Wherever necessary non- hygroscopic polypropylene fllers are applied in The interstices of multicore cables during laying up.
A PVC inner covering is included in PVC insulated unarmoured Control and Auxilliary cables.
Below the outer sheath.
Bedding
The bedding normally consists of a layer of extruded PVC.
Armour
The armour is a single layer of galvanized steel wires. The direction lay of the Armour is left hand and the size of the armour -wires is a specified in the Cable standard specification.
Finish:
The standard finish of all cables consist of an extruded black PVC over-sheath, the external surface of which is embossed with the appropriate Legend. The over sheath PVC grade is usually
Type TM 1 or Type 9 or BS 7655 although other grades e.g. Type 5 (85 c Hard) PVC or PVC sheath with anti-termite properties can be provided when specified. The PVC grade ST-2 for cables conforming to IEC 60502 standard. Another option is medium density polyethene (MDPE) sheath where abrasion Resistance is important or where the cable is to be burried in a waterlogged area.
PVC is intrinsically flame retardant and all cables described in this publication Comform to IEC 332 Part 1
"Test on Electric Cables under Fire Conditions". For Special enquires.
PVC with high oxygen Index, specially formulated for enchance Fire performance can be considered.
Tera Cab India offer wide ranges of cable as per various national and internationalStandards and provides their complete cabling solution, the manufacturing ranges of Tera Cab India are : Telecommunication Sector, Power Sector and Cable for Special Application
