进入公司商铺 EV-SS充电桩电缆Submarine cable (submarine cable) is a wire wrapped with insulating material, laid on the seabed and river water for ecommunications transmission. Modern submarine cables use optical fiber as a material to transmit ephone and Internet signals. The world's first submarine cable was laid between England and France in 1850. China's first submarine cable was completed in 1888, a total of two, one is between Fuzhou and Taiwan, Shanghai, Shanghai and Shanghai (fresh water), a long sea of another one by the Tainan Anping to Penghu, up to 53 nautical miles in length ().
海底电缆分海底通信电缆和海底电力电缆。海底通信电缆主要用于通讯业务,费用昂贵,但保密程度高。海底电力电缆主要用于水下传输大功率电能,与地下电力电缆的作用等同,只不过应用的场合和敷设的方式不同。由于海底电缆工程被世界各国*为复杂困难的大型工程,从环境探测、海洋物理调查,以及电缆的设计、制造和安装,都应用复杂技术,因而海底电缆的制造厂家在世界上为数不多,主要有挪威、丹麦、日本、加拿大、美、英、法、意等国,这些国家除制造外还提供敷设技术。目前我国应用的海底电力电缆仍然需要进口。
Submarine cable submarine communication cable and submarine power cable. The submarine communication cable is mainly used for communication business, the cost is high, but the degree of confidentiality is high. The submarine power cable is mainly used for the transmission of high power electric power under the water, which is equivalent to the underground power cable. The submarine cable project is recognized as the world of large complex engineering difficulties, from environmental exploration, marine geophysical survey, and cable design, manufacture and installation, the application of complex technology, so the manufacturer of submarine cables in the world are few, mainly in Norway, Denmark, Japan, Canada, the United States and Britain and France, Italy and other countries, these countries in manufacturing but also provide installation technology. At present, China's submarine power cables still need to import.
海底电缆分类
Classification of submarine cables
浸渍纸包电缆：适用于不大于45kV交流电及不大于400kV直流电的线路。目前只限安装于水深500m以内的水域。
Impregnated paper cable: not less than 45kV AC and not more than 400kV DC line. Currently only installed in the water depth of less than 500m.
自容式充油电缆：适用于高达750kV的直流电或交流电线路。由于电缆为充油式，故可以毫无困难地敷设于水深达500m的海域。
Self contained oil filled cable: suitable for DC or AC lines up to 750kV. As the cable for oil filled, it can be difficult to apply to the water depth of 500m of the sea.
挤压式绝缘（交联聚乙烯绝缘、乙丙橡胶绝缘）电缆：适用于高达200kV交流电压。乙丙橡胶较聚乙烯更能防止树枝现象及局部泄电，使海底电缆更有效地发挥功能。
Extruded insulation (XLPE insulated, ethylene propylene rubber insulated) cable: suitable for up to 200kV AC voltage. Ethylene propylene rubber is better than polyethylene to prevent the phenomenon of branches and local discharge, so that the submarine cable to play a more effective function.
“油压”管电缆：只适用于数公里长的电缆系统，因为要把极长的电缆拉进管道内，受到很大的机械性限制。
"Oil" pipe cable: only for a few kilometers long cable system, because the cable into the very long cable into the pipeline, subject to a lot of mechanical limitations.
充气式（压力辅助）电缆：使用浸渍纸包的充气式电缆比充油式电缆更适合于较长的海底电缆网，但由于须在深水下使用高气压操作，故此增加了设计电缆及其配件的困难，一般限于水深为300m以内。
Inflatable (pressure assisted cable): the use of submarine cable network packet inflatable impregnated paper cable than oil filled cable is more suitable for long, but must use high pressure operation in deep water, therefore increases the design difficulty of cables and accessories, generally limited to the depth of less than 300m.EV-SS充电桩电缆
海底电缆用途
Submarine cable
海底通信电缆主要用于长距离通讯网、通常用于远距离岛屿之间、跨*事设施等较重要的场合。海底电力电缆敷设距离较通信电缆相比要短得多,主要用于陆岛之间、横越江河或港湾、从陆上连接钻井平台或钻井平台间的互相连接等。在一般情况下,应用海底电缆传输电能无疑要比同样长度的架空电缆昂贵,但用它往往比用小而孤立的发电站作地区性发电更经济,在近海地区应用好处更多。在岛屿和河流较多的国家,此种电缆应用较广泛。
Submarine communication cable is mainly used for long-distance communication network, usually used for remote islands, cross sea military facilities and other important occasions. The laying distance of submarine power cable is much shorter than that of communication cable, which is mainly used for the connection between land island, crossing rivers or bays, and connecting with the drilling platform or drilling platform on land. In general, the transmission of electrical cable can be used is more expensive than the overhead cable of the same length, but it more often than in small isolated power station for regional power in the offshore area of application is more economical, more benefits. In countries with more islands and rivers, such cables are widely used.
