Hydro Plant Risk Assessment Guide

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Tier 2 Adjustments to Condition Index (Sum of individual Adjustments) Tier 2 Data Quality Indicator (Value must be 0, 4, 7, or 10) Go to Part II. E11-42
EMERGENCY CLOSURE SYSTEM TIER 2 CONDITION ASSESSMENT SUMMARY Date: _________________________________ Location: _______________________________ Unit: ___________________ Type of Valve: __________________________________ Part I: Determine Adjustment to Tier 1 Emergency Closure System Condition Index. Emergency Closure System – Valves with Hydraulic Operators Adjustment to Tier 1 No. Tier 2 Test (Table No.) Condition Index Valves (Structural Integrity and Functional Operation): T2.2.1 Corrosion (17) T2.2.2 Yielding, Fracture, Fatigue, and Fabrication Discontinuities (18) T2.2.3 Improper Field Repair and/or Modifications (19) T2.2.4 Actuation Performance (20) T2.2.5 Seals, Sealing Surfaces, and Packing (21) T2.2.6 Bearings and Bushings (22) Hydraulic 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) T2.3.5 Actuation Performance (27) T2.3.6 Pistons (28) T2.3.7 Hydraulic Systems (29) T2.3.8 Electric Motors (30) T2.3.9 Electric Controls (31) Miscellaneous Tests and Conditions: T2.4 Miscellaneous Deficiencies (41) T2.5 Annunciation (42) T2.6 Maintenance Escalation (43) T2.7 Other Specialized Diagnostic Tests Tier 2 Adjustments to Condition Index (Sum of individual Adjustments) E11-43
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 41: 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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