水库光缆线路的工程设计

水底光缆是直埋光缆的薄弱环节，也是光缆设计的一个重要部分。文中以穿越阿什河、蚂蜒河和倭肯河的水底光缆为例介绍了水底光缆的路由选择、长度和程式的确定、敷设要求和施工方式，以及岸滩和穿堤保护等方面的设计过程。     

水底光缆研制

本文介绍一种敷设在江、河、湖底的水底光缆，重点讨论光缆结构设计，铠时层强度计算，制造工艺及光缆试验等问题。     

长江口崇明过江水底光缆的建设

简要介绍了长江口崇明过江水底光缆建设工程光缆传输网的构成,过江水底光缆路由方案的确定,光缆结构的选定及施工中应考虑的问题。     

DGPS及其在长江水底光缆敷设中的应用

１ＧＰＳ的发展ＧＰＳ（ＧｌｏｂｌｅＰｏｓｉｔｉｏｎｉｎｇＳｙｓｔｅｍ）全球卫星定位系统可以在全球范围内实现全天候、实时地确定用户的精确位置并提供精确时间。ＧＰＳ系统是由美国提出并实施的一项庞大的宇宙及航天工程。１９７３年１２月,美国国防部批准其陆海空三军联合研制新的军用卫星导航系统———ＮＡＶＳＴＡＲＧＰＳ系统,即ＧＰＳ系统;１９７８年２月２２日,第一颗ＧＰＳ实验卫星的发射成功,标志着工程研制阶段的开始;１９８９年２月１４日,第一颗ＧＰＳ工作卫星的发射成功,宣告ＧＰＳ进入生产作业阶段。ＧＰＳ系…     

光缆通信系统工程设计

本文系按照光纤通信技术的特点,着重对公用通信网中长途干线及市话中继线光缆通信系统工程设计的主要技术方案作一论述。     

Optical fiber submarine cable systems

Optical fiber submarine cable systems especially developed for international systems throughout the world are reviewed, and the future technologies for optical fiber submarine cable systems are discussed. The discussion covers: system design; cable design and the fiber used; mechanical design of submarine optical repeaters; branching repeaters; repeater circuits; reliability; terminal equipment; repeater supervisory systems; initial system applications; and future trends     

浅析10kV电力电缆线路设计技术要点

电力电缆具有耐用、美观等优点,因此其使用范围愈发广泛。但与此同时,由于电力电缆工程的隐蔽性,导致其检修、维护工作难度较大。本文以10kV电力电缆线路设计中存在的问题为切入点,对其线路设计要点进行了简要的分析。     

Characteristics of wire-space-type submarine optical cable

A new type of submarine optical cable, called wire space cable, is proposed for utilisation in shallow sea areas. In the cable, optical fibres are inserted into spaces formed between stranded wires, which are used as tension members. It has been found from a cable pulling test that nonarmoured cable elongation at 8000 m in water depth is 0.3% and armoured cable elongation at 6000 m is 0.5%. Furthermore, a hydraulic pressure test has shown that single-mode-fibre loss at 1.3 ?m wavelength does not increase up to a water depth of 2700 m.     

Estimation of submarine optical-fiber cable elongation

The tensile strain on a submarine optical-fiber cable may reach a nonlinear elastic region when recovered from the sea floor. In this paper, a method is shown to characterize cable elongation up to the nonlinear plastic region by extending wire theory previously developed to evaluate cable strain in the elastic linear region. The results of applying this method to several optical-fiber cables agrees well with tensile test results of the cables when cable ends are prevented from twisting, as well as when they are free to rotate. Also, by evaluating the dependence of cable strain on cable materials, such as stranded-strength members and pressure-resistant conductor pipe, a practical submarine optical-fiber cable structure for deep-sea use is determined.     

Optical-fibre unit for optical submarine cable

An optical-fibre unit with a strain-relaxing effect is proposed for realising a highly reliable optical-fibre submarine cable. The basic design of the new type of optical-fibre unit means that optical fibres are not subjected to the same strain as the fibre unit directly when the unit is elongated. The test result of the strain-relaxing effect of an experimental optical-fibre unit was about 0.2%, and optical fibres returned to the original position in the fibre unit after the tension was released.     

URC-HA型无中继海底光缆

本文介绍了无中继海底光缆系统的原理，比较了电再生中继海底光缆和无中继海底光缆（利用光纤放大器）的特点，对海底光缆结构作简单的解剖，并介绍了上海Ａｌｃａｔｅｌ最近生产ＨＡ型海底光缆的性能。     

海底光缆研究

自从1985年世界上第一条海底光缆问世以来,海底光缆在全世界得到了广泛发展.海底光缆以其大容量、高可靠性和优异的传输质量等优势,在通信领域,尤其是国际通信中起到了重要的作用.文章简要介绍了海底光缆的技术要求,对海底光缆的典型结构作了分析,概述了海底光缆的关键制造技术和施工程序,并指出了其发展趋势.     

The Long Island Sound submarine cable interconnection

This article discusses the design and installation of a 300-MVA, 19-km, 138-kV, high-pressure, oil-filled submarine cable for spanning the Long Island Sound between Norwalk, Conn., and Northport, N.Y. The use of self-contained, oil-filled cable for this crossing represents a major contribution in the field of cable technology. This long-desired intertie became a reality with the development of new low-viscosity impregnants?capable of coping with severe hydraulic transients?and with improved design, manufacturing, and installation techniques. The associated terminal facilities and system considerations are also described.     

海底光缆结构与发展

简要介绍了海底光缆结构,对海底光缆一般技术要求及结构的发展趋势作了简单说明.     

长距离海底光缆系统的技术动向

随着全球经济一体化和各国实现自身信息化的需求,国际间的通信和信息流量激增,尤其是以因特网为首的多媒体通信急剧发展,４５Ｍｂ／ｓ、１５５Ｍｂ／ｓ国际数字专用线业务的需求量逐年增加,造成了通信容量不足,因此为海底光缆通信提供了广阔的市场空间。本文将对长距离光放大海底光缆系统的开发现状、主要技术和发展动向进行探讨。