Ajanta heavy duty armoured and unarmoured cables are manufactured with copper / aluminium conductors pvc insulated laid, up the inner sheath may be extrusion / taping process and is of thermoplastic material. The armouring is of galvanized mild steel wire / strip. For singlee core armoured cables intended to be used in a. C. Circuit, the armouring is of non-ferrous metals to avoid eddy current heating and finally sheathed with higher grade pvc. The cables are manufactured under strict quality control as per is specification no. S: 1554 (part—1) of 1988 and are suitable for operation upto 1100 volts.
In case of aerial bunch cable’s core are identified by embossed ridges along the length, 1, 2, and 3 as phase 1, 2 and 3 respectively where as inculator is concerned.
Inner sheath
cables of two or more cores have a common inner sheath. The minimum thickness of inner sheath is 0. 03-mm upto laid up diameter of 25 mm.
Armouring
where the calculated diameter of inner sheath doesn’t exceed 13 mm the armour is of round galvanized steel wires and for calculated diameter of inner sheath above 13 mm flat galvanized steel strips are used.
Core identification
different colours identify the cores:
single core | red, black, yellow, or blue. |
two core | red & black |
three core | red, yellow & blue |
four core | red, yellow, blue & black |
five core | red, yellow, blue, black and grey |
six core and above | two adjacent cores, (counting and directional core) in each layer, blue and yellow respectively and remaining cores grey |
* for reduced neutral conductors, the core shall be black.
Established in 1972, we Ajanta cables are a professional manufacturer for power & control cable, LT-XLPE cable, submersible and instrumentation cable, telecommunication, coaxial and house wire cable.The year 1965 marked the launch of PVC cables and its was in 1972 that Ajanta ventured its foray in this field.
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