Sayano-Shushenskaya – 2009 August 17

Accident_at_Russia's_Biggest_Hydroelectric_-_Rev_00_Part1.pdf (1,243 KB, 160 downloads) Sayano-Shushenskaya Part 1

quote:

Sayano-Shushenskaya

Part 2

Accident_at_Russia's_Biggest_Hydroelectric_-_Rev_00_Part2.pdf (1,510 KB, 128 downloads) Sayano-Shushenskaya Part 2

Sayano-Shushenskaya Part 3

Terry O

Accident_at_Russia's_Biggest_Hydroelectric_-_Rev_00_Part3.pdf (965 KB, 129 downloads) Sayano-Shushenskaya Part 3

Terry,

I have worked at hydro plants, and I have seen damage from water hammer at a large fossil power plant. All I can say is WOW! Thanks for sharing.

Walt

WOW What a mess!

Terry O',
It is a great pity that 78 people had to pay with their lives for what would appear to be, if the analysts' theory is correct, an avoidable accident.
We often take Technical Integrity as a 'given', depending on the designers, operators and maintainers to do their jobs correctly. Yet, eternal vigilance is the only route to a safe environment. If indeed a log or other foreign body got into the penstock, clearly the trash racks have not done their job. The trash racks are under water, physically hidden from view. Such equipment need careful inspection and prompt attention if defects are found in these inspections.
The human cost is enormous, overshadowing the huge economic costs. When (if) the truth become known, I hope it will not be a repeat of the old story - a horse, a horse, a kingdom for a horse!
You put out a blog in AMP questioning the idea of deliberately lowering Reliability to reduce Maintenance Costs (in the context of hard times of belt-tightening). I hope that kind of approach did not result in this disaster.
Thank you for sharing the presentation.

http://www.youtube.com/watch?v=TBo2WEl7u08