1. OVERALL FACILITY CONFIGURATION 121.1. Major Components 12
1.2. Balance of Plant Support Systems 12
2. SITE CONDITIONS 142.1. Site Elevation and Barometric Pressure 14
2.2. Temperatures 14
2.3. Precipitation, Wind and Earthquake 14
3. CODES AND STANDARDS 153.1. State and Local Building Codes, Standards and Ordinances 15
3.2. U.S. Government Codes, Ordinances, and Standards 15
3.3. American Society of Mechanical Engineers 15
3.4. American National Standards Institute 16
3.5. Industry Standards 17
3.6. Electric Utility Requirements 19
4. TECHNICAL REQUIREMENTS 194.1. System Descriptions 21
4.2. Plant Identification System 21
4.3. Supplier Factory Tests 22
4.4. Testing 22
4.5. Welding 24
4.6. Lubrication 24
4.7. Consumables 25
5. OPERATIONAL REQUIREMENTS 256. MAJOR MECHANICAL EQUIPMENT AND SYSTEMS 266.1. Combustion Turbine 26
6.1.1. Turbine Supervisory Instrumentation 27
6.1.2. Inlet Air Filter 27
6.1.3. Acoustic Enclosures 28
6.1.4. Water Wash System 29
6.1.5. Combustion Turbine Exhaust Duct 29
6.2. Heat Recovery Steam Generator 29
6.2.1. HRSG Casing 34
6.2.2. HRSG Burner System Valves 34
6.2.3. Duct Burners 35
6.2.4. Feedwater System 35
6.2.5. Temperature Monitoring 36
6.2.6. Blowdown Tanks 36
6.2.7. Exhaust Stack 36
6.3. Steam Turbine and Associated Components 37
6.3.1. Lube and Control Oil Systems 38
6.3.2. Gland Steam Sealing System 39
6.3.3. Turning Gear 39
6.3.4. Piping 40
6.3.5. Steam Strainers 40
6.3.6. Drains 40
6.3.7. Insulation and Lagging 40
6.3.8. Chemical Cleaning 40
6.3.9. Guards 41
6.3.10. Main Steam System 41
6.3.11. Exhaust Hood Sprays 41
6.3.12. Instrumentation and Control 41
6.4. Heat Rejection Systems 42
6.4.1. Condenser 42
6.4.2. Steam Turbine Bypass 44
6.4.3. Condensate System 44
6.4.4. Circulating Water System 45
6.4.5. Auxiliary Cooling Water System 46
6.4.6. Closed Cooling Water System 46
6.4.7. Mechanical Draft Cooling Tower (as applicable) 46
6.4.8. Air-Cooled Condenser (if applicable) 48
6.4.9. Pumps 51
6.5. Piping 55
6.5.1. Piping Materials 57
6.5.2. Pipe Velocities 58
6.5.3. Pipe Hangers and Supports 59
6.6. Valves 59
6.6.1. Drain and Vent Valves and Traps 61
6.6.2. Low-Pressure Water Valves 61
6.6.3. Instrument Air Valves 61
6.6.4. Non-Return Valves 62
6.6.5. Motor-Actuated Valves 62
6.6.6. Control Valves 62
6.6.7. Safety and Relief Valves 65
6.6.8. Instrument Root Valves 65
6.6.9. Float-Operated Valves 65
6.6.10. High-Pressure Valves 65
6.7. Insulation and Freeze Protection 66
6.8. Tanks 66
6.9. Heat Exchangers 67
6.10. Pressure Vessels 67
6.11. Fuel Gas Supply System 68
6.12. Water Source and Treatment System 69
6.13. Demineralized Water (Condensate Makeup) 70
6.14. Wastewater Treatment and Discharge 71
6.15. Sump Pumps 72
6.16. Potable Water 72
6.17. Fire Protection System 73
6.17.1. General 73
6.17.2. Seller’s Responsibility 73
6.17.3. Fire Protection Master Plan and Design Basis 74
6.17.4. Codes, Standards and Recommendations 75
6.17.5. Other Codes and Standards 77
6.17.6. Materials, Equipment and System Components Listings and Approvals 78
6.17.7. Fire Protection Water Supply and Water Storage 78
6.17.8. Fire Pumps 79
6.17.9. Underground Fire Protection Water Main System and Hydrants 80
6.17.10. Fire Hydrants 82
6.17.11. Fire Protection and Detection System 82
6.18. Fire Detection System 87
6.19. Compressed Air System 89
6.20. Cranes, Hoists, and Trolleys 90
6.21. Heating Ventilating and Air Conditioning 91
6.21.1. System Function 92
6.21.2. Buildings and Enclosures 92
6.21.3. Air Conditioning System 92
6.21.4. Battery Room Exhaust System 93
6.21.5. Design Parameters 93
6.21.6. Standards 94
6.22. Chemical Injection Skids, Chemical Storage, and Bottled Gas Storage 95
7. MAJOR ELECTRICAL EQUIPMENT AND SYSTEMS 957.1. Frequency and Voltage Limits 96
7.1.1. Frequency 96
7.1.2. Voltage 96
7.2. Auxiliary Equipment 96
7.3. Synchronous Generator 97
7.3.1. Construction of the Generator 98
7.3.2. Accessories 98
7.3.3. Generator Neutral Grounding 98
7.3.4. Excitation Systems 98
7.4. Isolated-Phase Bus Ducts, Non-Segregated Phase Bus Ducts, and Generator Circuit Breakers 99
7.5. Plant Electrical Auxiliary Systems 100
7.6. Electrical System Design and Equipment Requirements 101
7.7. Automatic Generation Control Terminal 102
7.8. Generator Bus 104
7.9. Neutral Grounding Equipment 105
7.10. GSU Transformer Bank 105
7.10.1. GSU Cooling System 106
7.10.2. Generator Breakers 106
7.11. Unit Auxiliary Transformer 106
7.12. System Protection 107
7.12.1. Generator Protective Relaying 109
7.12.2. Generator Bus and Transformer Protective Relaying 110
7.12.3. Main Power Transformer Protective Relaying 110
7.12.4. Auxiliary System Relaying 110
7.12.5. Major Interlocks 111
7.12.6. Lockout Relay Actions 111
7.12.7. Protective Relays 111
7.13. Medium Voltage Bus Duct 111
7.13.1. Non-Segregated Phase Bus Duct/Cable Bus (as required) 111
7.13.2. Bus Ratings 112
7.13.3. Cable Bus Duct 112
7.13.4. Bus Ratings 112
7.13.5. Conductors 112
7.13.6. Medium Voltage System 112
7.14. Low-Voltage System 114
7.14.1. System Configuration 114
7.14.2. Transformers 114
7.15. Switchgear 114
7.16. Motor Control Centers 115
7.16.1. Operational Requirements 116
7.16.2. Protection 116
7.17. Alternate Power Source 116
7.18. Essential Service AC System 116
7.18.1. Uninterruptible Power Supply 116
7.18.2. Rectifier 117
7.18.3. Inverter 117
7.18.4. Static Transfer Switch 117
7.18.5. Essential Service 120V AC Distribution Panelboard 117
7.19. Essential Service DC System 118
7.19.1. Batteries 118
7.19.2. Battery Accessories 118
7.19.3. Battery Chargers 119
7.20. Motors 119
7.20.1. 4,000-Volt Motors 119
7.20.2. Low-Voltage Motors 121
7.20.3. Standby Power Generator 122
7.21. Miscellaneous 123
7.21.1. Communications Section 123
7.21.2. Security 124
7.21.3. Panelboards 125
7.21.4. Grounding and Lightning Protection System 125
7.21.5. Cathodic Protection System 125
7.21.6. Lighting Systems 125
7.21.7. Cable and Raceway Systems 127
7.22. General Wiring Requirements 130
7.23. Protective Relay Panel Functional Requirements 131
7.24. Workstations 131
7.25. Testing and Checking of Electrical Equipment 131
7.26. Embedded Work 131
7.27. Freeze Protection 132
7.28. Switchyard 133
7.28.1. Circuit Breakers 133
7.28.2. Disconnect Switches 133
7.28.3. System Protection 133
7.28.4. Control 134
7.28.5. Power Metering 134
7.28.6. Non-Revenue Metering 135
7.28.7. Steel Structures 136
7.28.8. Miscellaneous 137
7.28.9. Switchyard Grounding and Lightning Protection 137
7.28.10. Stability Study 137
8. INSTRUMENTATION AND CONTROL REQUIREMENTS 1378.1. Distributed Control System 139
8.1.1. Performance Requirements 140
8.1.2. Functional Requirements 140
8.1.3. Console Design 141
8.1.4. Hardware Requirements 141
8.1.5. DCS Partitioning 141
8.1.6. Power 141
8.1.7. System Failure Protection 142
8.1.8. DCS Communication Network 142
8.1.9. Printers 142
8.1.10. Computing Hardware and System I/O 142
8.1.11. System Cabinets 143
8.1.12. Electrical Design Criteria 143
8.2. Software Requirements 144
8.2.1. Data Acquisition 144
8.2.2. DCS Interfaces 145
8.3. Testing 149
8.3.1. Tools 149
8.3.2. Installation and Operating Instructions 149
8.4. Continuous Emissions Monitoring System 149
8.4.1. Analyzer Subsystem 150
8.4.2. Sample Transport System 150
8.4.3. Stack Gas Monitoring Equipment 151
8.4.4. CEMS Data Logger 151
8.4.5. CEMS Enclosure 151
8.4.6. Documentation 151
8.4.7. Shipping 152
8.4.8. Factory Checkout 152
8.5. Data Acquisition System 152
8.5.1. Software 152
8.5.2. Data Communications System 153
8.5.3. Reporting and Recordkeeping Requirements 154
8.5.4. Quality Assurance and Quality Control Data 154
8.6. Balance-of-Plant Instrumentation Installation Criteria and Installation Details 154
8.6.1. Scope of Specification 154
8.6.2. Instrumentation Electrical Requirements 157
8.6.3. Pressure Instruments 157
8.6.4. Temperature Instruments 159
8.6.5. Level Instruments 160
8.6.6. Level Gauges 162
8.6.7. Flow Elements – Flow Nozzles and Venturis 163
8.6.8. Flow Elements – Orifice Plates 163
8.6.9. Annunciators, Alarm Switches, and Electrical Devices 164
8.6.10. Process Analyzers and Analyzer Systems 165
8.6.11. Pressure and Temperature Switches 167
8.7. Instrument Air and Service Air Systems 167
8.8. Field-Mounted Instruments 168
8.8.1. Instrumentation - General Design 168
8.8.2. Instrument Cabinets and Local Control Panels 169
8.8.3. Instrument Tubing and Piping 171
8.8.4. Air Piping, Fittings, and Pneumatic Devices 172
8.9. Steam/Water Sampling and Analysis 173
8.10. Vibration Monitoring System 173
8.11. Plant Siren System 173
8.12. Instrument Calibration 174
8.13. I&C Maintenance Area Requirements 174
9. CIVIL AND STRUCTURAL WORKS 1749.1. Design Criteria 174
9.1.1. Dead Loads 174
9.1.2. Live Loads 175
9.2. Site Preparation 177
9.3. Geotechnical Investigations 178
9.4. Surveying 178
9.5. Site Development and Earthwork 178
9.6. Temporary Construction Facilities 179
9.7. Facility Grading 179
9.7.1. Earthwork 180
9.7.2. Clearing and Grubbing 181
9.7.3. Stripping 181
9.7.4. Disposal of Unusable Soils 182
9.7.5. Erosion Control 182
9.7.6. Existing Underground Facilities 182
9.8. Access 183
9.9. Storm Water Drainage 183
9.9.1. Clean Storm-Water Sewer and Ditch System 183
9.9.2. Miscellaneous Valved Storm-Water Runoff 184
9.9.3. Sanitary and Oily Waste Water Drainage Systems 184
9.9.4. Sanitary Wastewater 184
9.9.5. Oil-Contaminated Wastewater Sewer System 185
9.9.6. Process Wastewater 185
9.10. Roads, Parking Lots, and Walkways 186
9.10.1. Facility Roads 186
9.10.2. Road Width and Clearance Requirements 186
9.10.3. Road Pavement 187
9.10.4. Parking Lots 187
9.10.5. Chemical Unloading 187
9.10.6. Facility Area Surfacing 188
9.10.7. Surfacing Plan 189
9.11. Landscaping 189
9.12. Fencing and Signage 189
9.13. Buildings 190
9.13.1. Location and Footprint of Buildings 190
9.13.2. Building Requirements and Sizes 191
9.13.3. Architectural 195
9.13.4. Furnishings 197
9.13.5. Building Systems 198
9.14. Foundations for Equipment and Structures 198
9.15. Concrete Work 199
9.16. Masonry Work 199
9.17. Steel Work 199
9.17.1. Steel Grating and Steel Grating Stair Treads 200
9.17.2. Stairs and Ladders 200
9.18. Painting and Coatings 201
9.19. Design 202
9.20. Construction 203
9.21. Testing and Inspections 204
10. DOCUMENT SUBMITTALS 20510.1. Documents To Be Submitted For Purchaser Review and Comment 205
10.2. Performance Curves 209
10.3. Purchaser’s Right to Receive Additional Documents for Information 210
10.4. Documents To Be Submitted Before Turnover of Facility 212
10.5. Drawings and Lists 212
10.6. Instruction Books and Operating Manuals 213
