Integrating optical communications within the power network-the practice

Because of the availability of `all dielectric self supporting optical cables´ (ADSS) offering secure interface free operation, some power utilities are now installing various forms of optical communications on their overhead transmission network, weather on AC of DC lines, for both power system control and general telecommunications duty. Based on successful trials on ADSS systems on overhead lines, East Midlands Electricity has embarked on a programme of installing a network of overhead optical cables to support and supplement its existing digital radio network. The authors discuss the application and experiences of one particular type of ADSS optical cable installed on existing 132 kV tower lines and include a description of the severe snow storms experienced by the midlands region of the UK in December 1990. Recommendations regarding standards for component design, system security future expectations and further development work in ADSS optical cable technology are addressed