The Need for Effective Communication and Coordination During a Plant Shutdown
The Need for Effective Communication and Coordination During a ...
The Need for Effective Communication and Coordination During a ...
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<strong>The</strong> <strong>Need</strong> <strong>for</strong> <strong>Effective</strong><br />
<strong>Communication</strong> <strong>and</strong> <strong>Coordination</strong><br />
<strong>During</strong> a <strong>Plant</strong> <strong>Shutdown</strong><br />
Man’s Greatest Gift<br />
Machiney Installation &<br />
Maintenance, Inc.
Man’s Greatest Gift<br />
• <strong>The</strong> art of communication.<br />
• <strong>The</strong>re is much discussion in the academic world of<br />
communication as to what actually constitutes<br />
communication. Currently, many definitions of<br />
communication are used in order to conceptualize<br />
the processes by which people navigate <strong>and</strong> assign<br />
meaning. <strong>Communication</strong> is also understood as<br />
the exchanging of underst<strong>and</strong>ing.<br />
Machiney Installation &<br />
Maintenance, Inc.
A Near Miss<br />
• Previous Employer<br />
• Hydro <strong>Plant</strong> on the Sultan River.<br />
• Mechanical Constructor<br />
• Responsibility during plant shutdown<br />
• Summer hire programs<br />
• Will not allow photos.<br />
• Caused me some concern because;<br />
• What good is a near miss if you cannot share.<br />
• By not sharing, we loose the reasons <strong>for</strong> our gift.<br />
Machiney Installation &<br />
Maintenance, Inc.
Brad’s Lecture<br />
• <strong>The</strong> ability to talk <strong>and</strong> apply direction.<br />
• We would not be here in this present environment if not<br />
<strong>for</strong> the ability to transfer knowledge.<br />
• <strong>The</strong> ability to listen.<br />
• <strong>The</strong> second part of this gift we all need improvement.<br />
• <strong>The</strong> ability to comprehend the in<strong>for</strong>mation.<br />
Machiney Installation &<br />
Maintenance, Inc.
<strong>Plant</strong> Spec’s<br />
• 8 mile penstock<br />
• 500 psi at turbine with full reservoir.<br />
• 4 Units<br />
• Two 50 MW Peltons<br />
• Two Francis 8 MW Francis<br />
Machiney Installation &<br />
Maintenance, Inc.
<strong>The</strong> Outage<br />
• Shut down due to ball valve repair.<br />
• Required an empty penstock or pipeline<br />
• A long day shift to prepare <strong>and</strong> drain tunnel is required.<br />
Machiney Installation &<br />
Maintenance, Inc.
Getting Ready<br />
• Assemble the tools <strong>and</strong> equipment on Friday.<br />
• Ropes, lights, impact wrench, sockets.<br />
• Confine space <strong>and</strong> hole watch.<br />
• Harness.<br />
• Dreaded paperwork.<br />
• Pressure washer, rain gear.<br />
• Clean spiral case <strong>and</strong> penstock to the valves.<br />
• Inside must be cleaned to per<strong>for</strong>m the work.<br />
Machiney Installation &<br />
Maintenance, Inc.
Instructions<br />
• Shut down starting Sunday afternoon by<br />
closing the gate at Spada Lake<br />
• Draining Blue Mountain<br />
• Several hours due to water pressure behind rocks.<br />
• Monitor pressures during the ramping.<br />
• Forebay = 1450’<br />
• Spiral Case = 273’<br />
Machiney Installation &<br />
Maintenance, Inc.
<strong>The</strong> “Scene”<br />
• Two Summer hire “Overachiever” types.<br />
• I gave a list <strong>and</strong> would came back one hour later.<br />
• Most equipment was then in place.<br />
• <strong>The</strong>y were instructed to continue with gathering tools.<br />
• I left the area to unload a truck on top deck.<br />
Machiney Installation &<br />
Maintenance, Inc.
<strong>The</strong> “conversation”<br />
• Me….”when you get done come up <strong>and</strong> find<br />
me on the top deck”<br />
• <strong>The</strong>m…”OK, do the lights go inside?”<br />
• Me….”Yes”<br />
Machiney Installation &<br />
Maintenance, Inc.
<strong>The</strong> Horn<br />
• Usual call was four short beeps on the horn.<br />
• Several short beeps with short durations<br />
• Run to the control room to find two temporary<br />
employees soaking wet.<br />
• Operator….they started to open the m<strong>and</strong>oor.<br />
• Me….””””WHAT””””<br />
• I run down the stairs to the m<strong>and</strong>oor<br />
Machiney Installation &<br />
Maintenance, Inc.
<strong>The</strong> M<strong>and</strong>oor<br />
• Found turbine floor flooded<br />
• Water at 450psi shooting out of the bottom of<br />
hatch & bolt holes. (broken door O-ring)<br />
• Entire TSV pit flooded <strong>and</strong> st<strong>and</strong>ing 6” water on<br />
the floor<br />
• Quickly run upstairs <strong>and</strong> instructed operator to<br />
shut the unit down <strong>and</strong> transfer load to Unit One.<br />
• Back down to watch the TSV closing.<br />
• Several minutes of closing time, to long.<br />
Machiney Installation &<br />
Maintenance, Inc.
Machiney Installation &<br />
Maintenance, Inc.
Control Room<br />
• TSV closed <strong>and</strong> water continued to flow.<br />
• I was told to clear the building.<br />
• Me….”you guys hit the top deck, I am not losing<br />
this *.%^^$$ing Powerhouse.”<br />
• Back down to start installing bolts.<br />
• Four bolts left out of twenty with two of them loose.<br />
• Pressure was extreme.<br />
• Install bolts against no air.<br />
• Used air wrench to tighten each as I installed them.<br />
Machiney Installation &<br />
Maintenance, Inc.
M<strong>and</strong>oor<br />
• Found Electrical Engineer h<strong>and</strong>ing me bolts.<br />
• He did not want to loose it either.<br />
• Completed installing the bolts as water continued<br />
to flow. (Door would not now open)<br />
• Water suddenly stopped<br />
• Electrician had jumper’d a terminal block to allow the<br />
needles to open, relieving pressure on m<strong>and</strong>oor.<br />
• TSV was shut <strong>and</strong> seals were not engaged<br />
• Power unit under water.<br />
Machiney Installation &<br />
Maintenance, Inc.
<strong>Plant</strong> Saved<br />
• Had the m<strong>and</strong>oor opened<br />
• Water would fill the powerhouse in 2 ½ minutes<br />
• Building = 75’ x 180’ x 2ea 14’ levels.<br />
• Equipment <strong>and</strong> components take up some space.<br />
• Two temporary employees <strong>and</strong> one outside<br />
contractor drowned.<br />
• One plant destroyed internally.<br />
• 160 million dollars.<br />
• Two years to rebuild.<br />
• Civil damage to tunnel <strong>and</strong> lost generation.<br />
Machiney Installation &<br />
Maintenance, Inc.
After Action<br />
• <strong>Communication</strong> failure.<br />
• We all talked <strong>and</strong> completely understood the task.<br />
• Brad assumed they understood.<br />
• “Do the lights go inside”<br />
• “Yes”<br />
Machiney Installation &<br />
Maintenance, Inc.
Questions?<br />
Talk to me after the<br />
Banquet<br />
Machiney Installation &<br />
Maintenance, Inc.