Article,

THE DEVELOPMENT OF OPTICAL COMMUNICATION SYSTEMS IN THE UNITED KINGDOM ELECTRICITY SUPPLY INDUSTRY

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Abstract

This paper will review the main types of optical fibre and the various cabling systems. Each option has advantages and disadvantages and each will fill a particular need. Fibres can be deployed on routes ranging from wooden pole lines carrying the lowest distribution voltages to tower lines carrying the highest transmission voltage and in underground networks. The mechanical, electrical and general engineering considerations which influence the choice of systems vary throughout the range. The many methods of installing fibres on power lines will be discussed in depth. The main meth.ods: optical overhead line conductors~~ables attached to the outside of conductors and separately suppo1·ted optical cables all have their merits. These, together with results and experience gained from the various trials c:.nd installations, will be fully discussed. Problems associated with installation, acceptance testing and interfacing are addressed. Optical conductor is more mature than the other options and is therefore covered in more detail. The plans of the UK Electricity Boards for future installations will also be discussed, with particular reference to the 140 Mbit/s trunk routes of the CEGB. The case for an all UK integrated network using the existing HV line infrastructure wi 11 be made.

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