INTRODUCTION
The Distribution Network is the link between the EAC Transmission system and the Authority’s customers.
CONSTRUCTION PROJECTS
Technical Specifications
The Networks Business Unit is responsible for the drawing up of technical specifications for all distribution network equipment and materials.
The technical specifications are under constant revision due to changes to international standards, improvements in technology or alterations in the use of materials. There is a total of 245 approved technical specifications concerning 1,445 materials. In 2007, seven new technical specifications were drawn up while 29 were revised.
Code of Practice
The correct and uniform application of distribution network construction work requires the existence of a detailed Code of Practice. Revision of the code for overhead power lines has already been completed and revisions take place at regular intervals to cover new applications. Preliminary work has also begun on the drawing up of a Code of Practice for the underground network.
Network construction standards
In order to carry out studies that include distribution networks, Distribution Network Specifications have been drawn up for all types of construction. The Distribution Network Standards are maintained and reviewed by the Networks Business Unit to ensure the proper use of materials and the correct costing of studies.
New methods for the scaling and recovery of poles and pylons
In order to comply with the law on safe working at heights, a plan was drawn up during 2007 for the introduction of new methods for safe scaling and pole/pylon recovery by the EAC’s linesmen.
In accordance with prepared specifications, a complete range of personal equipment was purchased for the EAC’s 380 linesmen. The Networks Business Unit made a substantial contribution to the organisation and monitoring of an external training programme which included specialised techniques for scaling and maintaining poles and pylons, the training of safety equipment inspectors and provisions for regular refresher courses.