CABLE Instrumentation 300V 24Pair x 16 AWG Stranded Circular copper conductor per ASTM B3 7 strands minimum; tinned as per ASTM B33 XLPE Primary Insulation Min Temp Rating 90 Deg C 0.38mm(15 Mils) Min Ave Insulation Thickness One Black Wire One White Wire For Pairs Minimum Temperature Rating 90 Deg C Jacket Min Thickness Per UL 13 Paragraph 13.1. Grey Color Outer Jacket Uniformly Twisted Pair As Per Ul 1277 Overall Shielded Aluminum Foil Bonded To Non-Hygroscopic Polyester (Mylar)Tape 0.022mm (0.85 Mil) Minimum Helical Minimum 25% Overlap 100% Coverage Overall Drain Wire. GSWA Armoured PVC Jacket Low Smoke Per UL 13 And UL 1685 Flame Retardant UV Resistant and Oil Resistance .