... along with numberingSheath materials PVC ST-1, ST-2, HR, FRLS, Unarmoured, Armoured round wire, flat stripJacket materials PVC ST-1, ST-2, HR, FRLSDescription ... confirming to IS: 8130 1984. Individual core insulated with extruded PVC compound type 'A' confirming to IS:5831 1984. All ... to IS: 3975, 1979 and finally jacketed with extruded PVC type ST-1 confirming to IS: 5831, 1984. Technical Data For ...