Hydro Plant Risk Assessment Guide

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Missing fillet weld Improper profile Cavitation & corrosion on weld Mi i fill t E11-50
Weld performed by nonqualified welder Substantial loss of weld area from corrosion Undercut from corrosion Moderate loss of weld area from corrosion E11-51
Page 1 and 2: September 2006 Hydro Plant Risk Ass
Page 3 and 4: qualified personnel that are compet
Page 5 and 6: Condition Indicator 2 - Physical Co
Page 7 and 8: Table 3 - Valve Physical Condition
Page 9 and 10: power supply, inspections, exercisi
Page 11 and 12: Table 6 - Intake Valve Operator (Hy
Page 13 and 14: E11.11 TIER 1 - EMERGENCY CLOSURE S
Page 15 and 16: • Miscellaneous Damage or Other C
Page 17 and 18: Note: If the gate performs unaccept
Page 19 and 20: Test T2.2: Valves Valves - Structur
Page 21 and 22: Valves - Functional Operation Test
Page 23 and 24: Test T2.3: Gates and Valves Operato
Page 25 and 26: Table 26 - Improper Field Repair an
Page 27 and 28: Table 29 - Hydraulic Systems Result
Page 29 and 30: Table 32 - Actuation Performance Re
Page 31 and 32: extensive wearing. Extreme - Brake
Page 33 and 34: Table 39 - Gearboxes, External Gear
Page 35 and 36: Table 43 - Maintenance Escalation R
Page 37 and 38: EMERGENCY CLOSURE GATES & VALVES TI
Page 39 and 40: EMERGENCY CLOSURE SYSTEM TIER 2 CON
Page 47 and 48: Part II: Calculate the Net Emergenc
Page 49: Porosity Crack at flange diaphragm

Hydro Plant Risk Assessment Guide

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