Suspension bridge types other end tied into a conventional cable stay. The underspanned portion of the span is long and has three vertical members. The Akashi Kaikyō Bridge, one of the longest suspension bridges in the world, is a suspended-deck suspension bridge with a stiff truss girder deck. Its main span is 1,991 meters long. Unlike many other types of bridge, suspension bridges often can be built without use of falsework. In many cases, the main cables are constructed first, then the deck is added. This often involves the use of a pilot cable. For details of their construction methods, see the articles
Telecommunications cable use RHH or RHW type insulation materials as defined in NFPA 70®, "National Electrical Code®," for use in dry, damp, and wet locations. Products with dual RHH/RHW ratings can be used in all locations. The following cable location definitions are derived from the 2008 NEC. To maintain a continuing level of quality on the production of cable, suppliers typically administer a Quality Management System (QMS) consistent with the latest issue of standards documents ISO 9000 and TL 9000 or an equivalent alternate quality system satisfactory to the purchaser. Quality and reliability requirements are of two types: Product and Qualification. Testing