The requirement for more reliable and cost effective power networks continues, with downtime measured (and penalized) in minutes as well as seconds. Over the past 20 years, there has been increasing realization that the uncontrollable external impact of wildlife is responsible for a far greater proportion of unplanned outages than previously acknowledged....
Among the most vulnerable links in any power network are the points of interaction between live equipment and wildlife – from birds to scavenging carnivores. Taken together, these creatures present a constant threat to the safe operation of network assets.... Read More
Pollution problems affecting insulators are certainly not new to power companies operating in the southeastern United States. For example, INMR articles from the 1990s reported on major ‘salt storms’ that led to widespread outages, such as in 1991 when... Read More
As industrial contamination is coming under more and more scrutiny and control in many countries, the issue of flashover outages attributed to birds (often included under the category of ‘unexplained outages’) is becoming a growing problem. As service... Read More
The problem of outages on overhead transmission lines due to streamer-type flashovers is caused by typical bird behavior after perching on a tower cross-arm. Before taking-off, they usually empty their bowels and release up to 60 cm3 of excrement mixed with... Read More