Optical Ground Wire (OPGW) cables are advanced composite overhead conductors that combine the functions of a ground wire and optical fiber communication within a single integrated solution. Installed at the top of high-voltage and extra-high-voltage transmission lines, OPGW cables provide lightning. worldwide quality standards. Prysmian has a built-in multi-step quality assurance programme, which covers the entire production process from cable design and raw materials purchasing, to final inspecti tion for any single project. An OPGW cable contains a tubular structure with. ZTT forms about 42,000km annual capacity in China, 20,000km in India, 12,000km in Indonesia and other 8,000km in Brazil. ZTT has become a professional company which has the biggest OPGW output and has satisfied different customers' requirements with quickest delivery time. Application OPGW is mainly applied in communication line of newly constructed high voltage transmit electricity system with 35 KV or above, or replacement of existing ground wire of previous overhead high voltage transmit electricity system.
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