CABLE Instrumentation 300V 1Pair 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 One Red Wire For Triads 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 Shielded Aluminum foil bonded to non-hygroscopic polyester (Mylar)tape 0.022 mm (0.85 mil) minimum Helical minimum 25% overlap 100% coverage Drain wire Unarmoured PVC Jacket Low Smoke Per UL 13 And UL 1685 Flame Retardant UV Resistant and Oil Resistance .