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CONTENTS

  • FOREWORD
  • 1. SCOPE
  • 2. REFERENCES
  • 3. DEFINITIONS AND INTERPRETATIONS
    • 3.1 Active Energy *
    • 3.2 Active Power *
    • 3.3 Actual Metering Point ‡
    • 3.4 Apparent Energy ‡
    • 3.5 Apparent Power ‡
    • 3.6 Boundary Point *
    • 3.7 Central Data Collection Agent (CDCA) *
    • 3.8 Communication Line ‡
    • 3.9 CTN ‡
    • 3.10 CVA †
    • 3.11 CVA Customer †
    • 3.12 Defined Metering Point ‡
    • 3.13 Demand Period ‡
    • 3.14 Demand Values ‡
    • 3.15 Electricity *
    • 3.16 Export †
    • 3.17 Import †
    • 3.18 Interrogation Unit ‡
    • 3.19 Licensed Distribution System Operator (LDSO) *
    • 3.20 Maximum Aggregated Capacity ‡
    • 3.21 Meter *
    • 3.22 Meter Register ‡
    • 3.23 Metering Equipment *
    • 3.24 Offshore Platform ‡
    • 3.25 Offshore Power Park Module *
    • 3.26 Outstation *
    • 3.27 Outstation System ‡
    • 3.28 PARh Meter ‡
    • 3.29 Password ‡
    • 3.30 PSTN ‡
    • 3.31 Rated Measuring Current ‡
    • 3.32 Reactive Energy *
    • 3.33 Reactive Power *
    • 3.34 Registrant *
    • 3.35 Settlement Instation ‡
    • 3.36 Single Line Diagram (SLD)
    • 3.37 SVA †
    • 3.38 SVA Customer *
    • 3.39 SVA Meter Operator Agent *
    • 3.40 Systems Connection Point *
    • 3.41 UTC *
  • 4. MEASUREMENT CRITERIA
    • 4.1 Measured Quantities and Demand Values for Metering Systems Registered in CMRS
      • 4.1.1 Measured Quantities
      • 4.1.2 Demand Values
    • 4.2 Measured Quantities and Demand Values for Metering Systems Registered in SMRS
      • 4.2.1 Measured Quantities
      • 4.2.2 Demand Values
    • 4.3 Accuracy Requirements
      • 4.3.1 Overall Accuracy
      • 4.3.2 Compensation for Measurement Transformer Error
      • 4.3.3 Compensation for Power Transformer and Line Losses
  • 5. METERING EQUIPMENT CRITERIA
    • 5.1 Measurement Transformers
      • 5.1.1 Current Transformers
      • 5.1.2 Voltage Transformers
      • 5.1.3 Monitoring of Voltage Transformers
      • 5.1.4 Measurement Transformers Installed on Existing Circuits
    • 5.2 Testing Facilities
    • 5.3 Meters
    • 5.4 Displays and Facilities for Registrant or Supplier Information
      • 5.4.1 Displays
      • 5.4.2 Facilities
    • 5.5 Outstation
      • 5.5.1 Data Storage
      • 5.5.2 Time Keeping
      • 5.5.3 Monitoring Facilities
    • 5.6 Communications
      • 5.6.1 Local Interrogation
      • 5.6.2 Remote Interrogation
    • 5.7 Sealing
    • 5.8 Single Line Diagram
    • 6. ASSOCIATED FACILITIES
    • 6.1 Interrogation Unit
    • 6.2 Additional Features
  • 7. ACCESS TO DATA
  • APPENDIX A: DEFINED METERING POINTS
  • APPENDIX B: LABELLING OF METERS FOR IMPORT AND EXPORT
  • APPENDIX C: FUSING
  • APPENDIX D: PASSWORDS
  • APPENDIX E: GUIDANCE FOR THE USE OF MULTI CORE METERING CABLES
  • APPENDIX F: GUIDANCE FOR THE COMMUNICATION ARRANGEMENTS FOR METERING SYSTEMS LOCATED OFFSHORE AT OFFSHORE POWER PARK MODULES
  • APPENDIX G: GUIDANCE FOR THE USE OF BUSBAR VOLTAGE TRANSFORMERS

Code of Practice 2: The Metering of Circuits with a Rated Capacity not Exceeding 100 MVA for Settlement Purposes V21.0

Effective From Date:22/09/2025
Status:LIVE
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