Hydro Plant Risk Assessment Guide

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Tier 2 Data Quality Indicator (Value must be 0, 4, 7, or 10) Go to Part II. E11-40
EMERGENCY CLOSURE SYSTEM TIER 2 CONDITION ASSESSMENT SUMMARY Date: _________________________________ Location: _______________________________ Unit: ___________________ Type of Gate: __________________________________ Part I: Determine Adjustment to Tier 1 Emergency Closure System Condition Index. Emergency Closure System – Gates with Electric Operators Adjustment to Tier 1 No. Tier 2 Test (Table No.) Condition Index Gates (Structural Integrity and Functional Operation): T2.1.1 Corrosion (11) T2.1.2 Yielding, Fracture, Fatigue, and Fabrication Discontinuities (12) T2.1.3 Improper Field Repair and/or Modifications (13) T2.1.4 Raising/Lowering Performance (14) T2.1.5 Slots, Seals, and Sealing Surfaces (15) T2.1.6 Wheels, Rollers, Roller Chains, Bearings, and Bushings (16) Electric Operators (Structural Integrity and Functional Operation): T2.3.1 Corrosion (23) T2.3.2 Anchoring (24) T2.3.3 Yielding, Fracture, Fatigue, and Fabrication Discontinuities (25) T2.3.4 Improper Field Repair and/or Modifications (26) T2.3.11 Actuation Performance (32) T2.3.12 Electric Controls (33) T2.3.13 Electric Motors (34) T2.3.14 Electric Brakes (35) T2.3.15 Wire Ropes and Chains (36) T2.3.16 Power Screws (37) T2.3.17 Drums and Sheaves (38) T2.3.18 Gearboxes, External Gearing, and Chain Sprockets (39) T2.3.19 Bearings and Bushings (40) Miscellaneous Tests and Conditions: T2.4 Miscellaneous Deficiencies (41) T2.5 Annunciation (42) T2.6 Maintenance Escalation (43) T2.7 Other Specialized Diagnostic Tests E11-41
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: EMERGENCY CLOSURE SYSTEM TIER 2 CON
Page 43 and 44: EMERGENCY CLOSURE SYSTEM TIER 2 CON
Page 45 and 46: EMERGENCY CLOSURE SYSTEM TIER 2 CON
Page 47 and 48: Part II: Calculate the Net Emergenc
Page 49 and 50: Porosity Crack at flange diaphragm
Page 51: Weld performed by nonqualified weld

Hydro Plant Risk Assessment Guide

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