Weather and climate impact overhead lines in many ways –
wind and ice loads, storms, floods and temperature. Changing climatic
conditions can affect the frequency, severity and distribution of extreme
events that should be taken into account in the design.
The objective of
this CEATI research was to prepare a state of the art report with
recommendations for utilities, designers and operators of overhead lines on how
those climatic changes can be taken into account for improved resiliency and
more reliable design requirements for the electrical grid. The
information includes literature reviews on climate implications for overhead
lines, industry approaches to adaptation and utility experience, methods and
procedures for improved design adaptations, and an assessment of future
research needs to support improvements in estimating design loads,
particularly in complex terrain.