Hydro Plant Risk Assessment Guide
Hydro Plant Risk Assessment Guide
Hydro Plant Risk Assessment Guide
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EMERGENCY CLOSURE SYSTEM<br />
TIER 2 CONDITION ASSESSMENT SUMMARY<br />
Date: _________________________________ Location: _______________________________<br />
Unit: ___________________ Type of Valve: __________________________________<br />
Part I: Determine Adjustment to Tier 1 Emergency Closure System Condition Index.<br />
Emergency Closure System – Valves with Electric Operators<br />
Adjustment to<br />
Tier 1<br />
No. Tier 2 Test (Table No.) Condition Index<br />
Valves (Structural Integrity and Functional Operation):<br />
T2.2.1 Corrosion (17)<br />
T2.2.2 Yielding, Fracture, Fatigue, and Fabrication Discontinuities (18)<br />
T2.2.3 Improper Field Repair and/or Modifications (19)<br />
T2.2.4 Actuation Performance (20)<br />
T2.2.5 Seals, Sealing Surfaces, and Packing (21)<br />
T2.2.6 Bearings and Bushings (22)<br />
Electric Operators (Structural Integrity and Functional Operation):<br />
T2.3.1 Corrosion (23)<br />
T2.3.2 Anchoring (24)<br />
T2.3.3 Yielding, Fracture, Fatigue, and Fabrication Discontinuities (25)<br />
T2.3.4 Improper Field Repair and/or Modifications (26)<br />
T2.3.11 Actuation Performance (32)<br />
T2.3.12 Electric Controls (33)<br />
T2.3.13 Electric Motors (34)<br />
T2.3.14 Electric Brakes (35)<br />
T2.3.15 Wire Ropes and Chains (36)<br />
T2.3.16 Power Screws (37)<br />
T2.3.17 Drums and Sheaves (38)<br />
T2.3.18 Gearboxes, External Gearing, and Chain Sprockets (39)<br />
T2.3.19 Bearings and Bushings (40)<br />
Miscellaneous Tests and Conditions:<br />
T2.4 Miscellaneous Deficiencies (41)<br />
T2.5 Annunciation (42)<br />
T2.6 Maintenance Escalation (43)<br />
T2.7 Other Specialized Diagnostic Tests<br />
E11-45