Russia dam accident, dozens missing

[VaughnCampbell]

dumbasses closed the valve too fast

water hammer

[staplez2low]

in soviet russia.. wait this is too fucked up when your high

[barten10]

damm accident!!!

[GAPEALLDAY]

DONT READ THIS CAUSE IT ACTUALY WORKS. YOU WILL GET KISSED ON THE NEAREST POSSIBLE FRIDAY BY THE LOVE OF YOUR LIFE. TOMMARROW WILL BE THE BEST DAY OF YOUR LIFE.HOWEVER IF YOU DONT POST THIS COMMENT TO AT LEAST THREE VIDEOS YOU WILL DIE WITHIN TWO DAYS.NOW YOU STARTED READING THIS DONT STOP.THIS SO SCARY.PUT THIS ON AT LEAST FIVE VIDEOS IN 143 MINUTES WHEN YOUR DONE PRESS F6 AND UR LOVERS NAME WILL APPEAR IN BIG LETTERS. THIS IS SO SCARY CAUSE IT ACTULLY Works

[MrLongwei]

this is what you get when you buy made in china

P.S Rest in peace russians.... my god embrace you in his arms

[wg390]

I feel bad

Innocent Russians die

RIP

and my condolences to Russian hard working people

[XenonMan1]

HOLY FUCK!

[greenassassin97]

ur RUSSIANS! this anit nun to yall

[jasonsmumusa]

ANY loss of innocent life is tragic, just ask those left behind, the hurt never goes away !!

[NorEastBeast]

I bet thats the same dam from

"Golden Eye"

[somebizkit]

@NorEastBeast That one is in Switzerland

[patienceking]

Damn Dam, you scary

[nuggert]

Don't act like you know everything lmao.

" what I don't understand is the high loss of life "

Like you know fucking anything about dams breaking and leaking a lot of water. LMFAO

[dxareready1]

are dams safe to swim in??

[digitalfuk]

@dxareready1 ABSOLUTELY SAFE TO SWIM IN A DAMN, GO AHEAD IM RIGHT BEHIND YOU.

[draco134]

maybe Megatron escaped...

[PoshtarBoba]

Tom, when the problem is just beginning - there caused a lot of workers.

[legonightmare65]

0:01 to skip adds

[drewkay2007]

An engineer with Hydro experience had a look at this one. His best estimate is a piece of debris, small enough to bypass trash grates but large enough to jam if wedged a certain way, jammed in the turbine and the rotation of the turbine w/ attached piece slapped the turbine gates shut. At 40RPM (typical speed) that's enough to shut the entire gate assembly in under 3 seconds which, given the mass of water moving through the penstocks, is enough to cause a serious water hammer effect.

[scubadev]

yea i work at hydro here and thats the best guess we had too

[malibumilk1]

the spirit of chernobyl

[menatwar]

@malibumilk1 yeah poor maintenance.

[steveingorge]

Yeah I have been trying to figure this one out. I'm supposing the water hammer was so devastating because it is a high head dam. Head cover failure was not the cause rather the result. I still can't understand why the wicket gates would close so fast to have that kind of water hammer. Headgate / bulkhead / tainter valve failure could explain the damage but if that were what happened it would be obvious. It is hard to believe incoming debris came in and slammed all the wicket gates closed

[TomFehring]

What I don't understand is the high loss of life. There typically are very few employees present in a hydro turbine hall -- not much for anything to do with an operating plant. The high loss of life would suggest that there must have been some extensive maintenance underway - or being staged. There is got to be more to this story than has been reported.

[user26049]

1) staff locker rooms and some workshops are located in the very that building, below water level.

2) they had a shift 10-20 minutes before the accident

(so both shifts might had been present)

3) another generator was on maintenance/upgrade

(so, some people were busy with that)

And some rumors:

4) problems might had started several hours before, and extra people were asked to come to work

5) there might had been extra people doing minor cosmetic repairs to building internals

[TomFehring]

Your speculation might explain the high loss of life. However, it would be helpful if some information was forthcoming from the government or plant operator to explain the incident.

It is typical for incident reports to be issued shortly after an accident, so that other facilities can guard against similar incidents. By this process the industry has worked collaboratively to improve safety for everyone.

Do you believe we can anticipate the same in this case?

[user26049]

Government already announced that it is because turbine cover (not one you can see in the hall, but one that separates "wet" part of the machine [turbine] from "dry" part [generator]) tore off and water pushed everything up.

Inet forums say that studs holding the cover were found to be corroded and one even had no nut on it.

[user26049]

Government also announced that this machine recently had a major maintenance service by a subcontractor company established by top management of this power plant - i.e. they signed an act accepting the work done by the subcontractor company that belongs to them. The power plant belongs to company, controlled by the government (~60%).

Also this year this power plant established its record of monthly power production - highest for all the 30 years it exists.

[metermatch]

@TomFehring A plant that size would have perhaps 10-15 operating personnel. But you would also have a manager or two, some clerical and janitorial staff, probably 20 electrical mechanics on staff. In addition, hydro turbines are taken down on schedule, perhaps every 2500 hrs. That is why there are so many. There could have been 20-50 extra mechanics on site during the day. I operate a 1250 megawatt plant, and I can have 100 people on site on a busy day. So forget your coverup theory.

[huntncomfort]

@metermatch Lock out tag out with redundant steps and actual verification that all energy is isolated and documented. No conspiracy just complacency, from the outside looking in, I would have liked to see the root cause investigation.

[whitewaterdriver]

Headgate/bulkhead perhaps? But I wouldn't think that would cause the wicket gates to close fast enough to water hammer, it would take hydraulic action from the governor to the servo motors to close the gates and they don't close in an instantaneous fashion. But, the obstruction could have ruptured a penstock though, which would have collateral damage in short order...or something like a failed penstock inspection door, bad weld, structure failure, etc.

[postchevelle]

Water Hammer pushed the 900 ton turbine #2 completely out of its seat - most likely caused by a large obstruction that made it's way into the turbine, closing all the wicket gates. Turbines 7 and 9 went into runaway mode and self-destructed. Flooding and flying debris shorted the enclosed bus, resulting in the transformer explosion. New death toll is at 76. Although the powerhouse can be rebuilt for 400M, the economy will lose 500,000 tons of Alumimum production resulting in the billions.

[meatpie27]

66 DEAD

[FenderStratoccaster]

Sad..

[BayArreaMami]

horrible