Cable Construction Conductor: fine strands of oxygen-free copper wire, insulation standards meet the VDE0295CLASS 5: special PVC insulation color: color representation, in line with GB5023.6 (yellow, white, orange, green, pink) numbered (no yellow-green ground wire) a single digital cable black white numbering meet EN50214 standard lining: no shield: Yes (optional mode); stiffeners: high strength galvanized steel wire Aviation (optional); video transmission line : High-strength copper clad steel conductors military, low interference special coaxial video cable (optional); Sheath: special PVC jacket cold, gray (RAL7001) or black (RAL9005), such as the use of the elevator when the elevator cable is the word When arranged in a freely use a length greater than 35m; 2, run faster than 1.6m / s; should consider increasing the load-bearing element in the cable, the load-bearing element is generally galvanized mild steel wire rope or fiber rope such as aramid yarn elevator cables Plum is a twisted arrangement, freely suspended length greater than 80m; 2, running speed of 4.0m / s ~ 10.0 m / s; should consider increasing the load-bearing element in the cable, the load-bearing element is generally galvanized mild steel wire rope.