18.0

<div data-id="foreword" style="margin-left:0.5in;text-align:left;text-indent:-0.5in">FOREWORD</div>

<div data-id="1" style="margin-left:0.5in;text-align:left;text-indent:-0.5in">1. SCOPE</div>

<div data-id="2" style="margin-left:0.5in;text-align:left;text-indent:-0.5in">2. APPLICATION TO OTHER CODES OF PRACTICE</div>

<div data-id="3" style="margin-left:0.5in;text-align:left;text-indent:-0.5in">3. REFERENCES</div>

<div data-id="4-4.1" style="text-align:left">4.1 Accredited Laboratory ‡</div>

<div data-id="4-4.2" style="text-align:left">4.2 Actual <u class='defined-term'>Metering Point</u> ‡</div>

<div data-id="4-4.3" style="text-align:left">4.3 Adjustment ‡</div>

<div data-id="4-4.4" style="text-align:left"><span>4.4 </span><span><b>Blank Calibrated <u class='defined-term'>Meter</u> </b></span><span>‡</span></div>

<div data-id="4-4.5" style="text-align:left">4.5 <u class='defined-term'>Boundary Point</u> *</div>

<div data-id="4-4.6" style="text-align:left">4.6 Calibration ‡</div>

<div data-id="4-4.7" style="text-align:left">4.7 <span><b>Commissioning </b></span>‡</div>

<div data-id="4-4.8" style="text-align:left">4.8 Commissioning End to End Check ‡</div>

<div data-id="4-4.9" style="text-align:left"><span><b>4.9 </b></span><span><b>Compensation </b></span><span><b>‡</b></span></div>

<div data-id="4-4.10" style="text-align:left"><span><b>4.10 Compensated <u class='defined-term'>Meter</u> ‡</b></span></div>

<div data-id="4-4.11" style="text-align:left"><span><b>4.11 Defined <u class='defined-term'>Metering Point</u> ‡</b></span></div>

<div data-id="4-4.12" style="text-align:left"><span><b>4.12 </b></span><span><b><u class='defined-term'>electricity</u> *</b></span></div>

<div data-id="4-4.13" style="text-align:left"><span><b>4.13 <u class='defined-term'>Equipment Owner</u> *</b></span></div>

<div data-id="4-4.14" style="text-align:left"><span><b>4.14 </b></span><span><b>Independent Connection Provider </b></span><span><b>†</b></span></div>

<div data-id="4-4.15" style="text-align:left"><span><b>4.15 <u class='defined-term'>Meter</u> *</b></span></div>

<div data-id="4-4.16" style="text-align:left"><span><b>4.16 </b></span><span><b><u class='defined-term'>Meter</u> Type </b></span><span><b>‡</b></span></div>

<div data-id="4-4.17" style="text-align:left"><span><b>4.17 <u class='defined-term'>Metering Equipment</u> *</b></span></div>

<div data-id="4-4.18" style="text-align:left"><span><b>4.18 <u class='defined-term'>Outstation</u> *</b></span></div>

<div data-id="4-4.19" style="text-align:left"><span><b>4.19 </b></span><span><b>Overall Accuracy </b></span><span><b>‡</b></span></div>

<div data-id="4-4.20" style="text-align:left"><span><b>4.20 Reference Conditions ‡</b></span></div>

<div data-id="4-4.21" style="text-align:left"><span><b>4.21 </b></span><span><b>Reference Standard </b></span><span><b>‡</b></span></div>

<div data-id="4-4.22" style="text-align:left"><span><b>4.22 Reference Temperature ‡</b></span></div>

<div data-id="4-4.23" style="text-align:left"><span><b>4.23 Single Line Diagram (SLD) ‡</b></span></div>

<div data-id="4-4.24" style="text-align:left"><span><b>4.24 </b></span><span><b>Standard(s)</b></span></div>

<div data-id="4-4.25" style="text-align:left"><span><b>4.25 <u class='defined-term'>Systems Connection Point</u> *</b></span></div>

<div data-id="4-4.26" style="text-align:left"><span><b>4.26 Testing Facilities </b></span></div>

<div data-id="4-4.27" style="text-align:left"><span><b>4.27 </b></span><span><b>Test House </b></span><span><b>‡</b></span></div>

<div data-id="4-4.28" style="text-align:left"><span><b>4.28 Traceable ‡</b></span></div>

<div data-id="4-4.29" style="text-align:left"><span><b>4.29 Transfer Standard ‡</b></span></div>

<div data-id="4-4.30" style="text-align:left"><span><b>4.30 </b></span><span><b>Working Standard </b></span><span><b>‡</b></span></div>

<div data-id="4" style="margin-left:0.5in;text-align:left;text-indent:-0.5in">4. DEFINITIONS AND INTERPRETATIONS</div>

<div data-id="5-5.1-5.1.1" style="text-align:left"><b>5.1.1 Types of Calibration</b></div>

<div data-id="5-5.1-5.1.2" style="text-align:left"><b>5.1.2 <u class='defined-term'>Meter</u> Calibration Criteria</b></div>

<div data-id="5-5.1-5.1.3" style="text-align:left"><b>5.1.3 Sealing</b></div>

<div data-id="5-5.1-5.1.4" style="text-align:left"><b>5.1.4 Records</b></div>

<div data-id="5-5.1" style="text-align:left">5.1 <u class='defined-term'>Meter</u>s – Calibration</div>

<div data-id="5-5.2" style="text-align:left">5.2 Sample Calibrations</div>

<div data-id="5-5.2A" style="text-align:left">5.2A End of Life Sample Calibrations</div>

<div data-id="5-5.3-5.3.1" style="text-align:left"><b>5.3.1 Responsibility for Calibrations and maintenance of Records.</b></div>

<div data-id="5-5.3-5.3.2" style="text-align:left"><b>5.3.2 Initial Calibration</b></div>

<div data-id="5-5.3-5.3.3" style="text-align:left">5.3.3 Periodic Calibration</div>

<div data-id="5-5.3-5.3.4" style="text-align:left">5.3.4 Records</div>

<div data-id="5-5.3" style="text-align:left">5.3 Measurement Transformers and Testing Facilities</div>

<div data-id="5-5.4" style="text-align:left">5.4 Voltage failure alarm</div>

<div data-id="5-5.5-5.5.1" style="text-align:left">5.5.1 Instruments for Commissioning</div>

<div data-id="5-5.5-5.5.2" style="text-align:left">5.5.2 Commissioning Tests</div>

<div data-id="5-5.5-5.5.3" style="text-align:left">5.5.3 Sealing</div>

<div data-id="5-5.5-5.5.4" style="text-align:left">5.5.4 Records</div>

<div data-id="5-5.5" style="text-align:left">5.5 Commissioning</div>

<div data-id="5-5.6" style="text-align:left">5.6 Proving</div>

<div data-id="5-5.7" style="text-align:left">5.7 Commissioning End to End Check</div>

<div data-id="5-5.8" style="text-align:left">5.8 Single Line Diagram</div>

<div data-id="5" style="margin-left:0.5in;text-align:left;text-indent:-0.5in">5 HALF HOURLY METERING SYSTEMS<a class="sdfootnoteanc" name="sdfootnote4anc" href="#sdfootnote4sym" data-footnote="Save for those arrangements where the (only) metering used for <u class='defined-term'>Settlement</u> purposes is CoP 10."><sup>4</sup></a></div>

<div data-id="6-6.1" style="text-align:left">6.1 Commissioning</div>

<div data-id="6-6.2" style="text-align:left">6.2 Commissioning Tests</div>

<div data-id="6" style="margin-left:0.5in;text-align:left;text-indent:-0.5in">6 NON HALF HOURLY METERING SYSTEMS<span><a class="sdfootnoteanc" name="sdfootnote15anc" href="#sdfootnote15sym" data-footnote="This section is provided to cover the requirements for Commissioning and in-service testing of all non-half hourly <u class='defined-term'>Metering Equipment</u>, and HH <u class='defined-term'>Metering Equipment</u> where the (only) metering used for <u class='defined-term'>Settlement</u> purposes is CoP 10. In respect of in-service testing of <u class='defined-term'>Meter</u>s certified under the Electricity Act, the requirements of the national sample survey will apply until 2016. The requirements for in-service testing of MID approved (under Statutory Instruments 2016 No.1153) <u class='defined-term'>Meter</u>s will be populated to this section once they are agreed."><sup>13</sup></a></span> AND COP10 HH METERING SYSTEMS</div>

<div data-id="7-7.1-7.1.1" style="text-align:left">7.1.1 Temperature tolerance</div>

<div data-id="7-7.1-7.1.2" style="text-align:left">7.1.2 Calibration intervals</div>

<div data-id="7-7.1" style="text-align:left">7.1 Reference Standards</div>

<div data-id="7-7.2-7.2.1" style="text-align:left">7.2.1 Temperature tolerance</div>

<div data-id="7-7.2-7.2.2" style="text-align:left">7.2.2 Calibration intervals</div>

<div data-id="7-7.2-7.2.3" style="text-align:left">7.2.3. Outside specification</div>

<div data-id="7-7.2" style="text-align:left">7.2 Transfer Standards</div>

<div data-id="7-7.3-7.3.1" style="text-align:left">7.3.1 Temperature tolerance</div>

<div data-id="7-7.3-7.3.2" style="text-align:left"><span>7.3.2 </span>Calibration intervals</div>

<div data-id="7-7.3-7.3.3" style="text-align:left"><span>7.3.3 </span>Outside specification</div>

<div data-id="7-7.3" style="text-align:left">7.3 Working Standards</div>

<div data-id="7-7.4" style="text-align:left">7.4 Records</div>

<div data-id="7-8" style="text-align:left">8 Calibration Equipment for Measurement Transformers</div>

<div data-id="7-8.1-8.1.1" style="text-align:left"><span lang="en-US">8.1.1 Temperature tolerance</span></div>

<div data-id="7-8.1-8.1.2" style="text-align:left"><span lang="en-US">8.1.2 Calibration intervals</span></div>

<div data-id="7-8.1" style="text-align:left">8.1 Reference Standards</div>

<div data-id="7-8.2" style="text-align:left">8.2 Records</div>

<div data-id="7" style="margin-left:0.5in;text-align:left;text-indent:-0.5in">7 CALIBRATION EQUIPMENT FOR METERS</div>

<div data-id="appendix-a-calibration-period-table" style="margin-left:0.5in;text-align:left;text-indent:-0.5in">APPENDIX A. CALIBRATION PERIOD TABLE</div>

<div data-id="appendix-b-test-points" style="margin-left:0.5in;text-align:left;text-indent:-0.5in">APPENDIX B. TEST POINTS</div>

<div data-id="appendix-c-measured-errors" style="margin-left:0.5in;text-align:left;text-indent:-0.5in">APPENDIX C. MEASURED ERRORS</div>

<div data-id="appendix-d-measurement-uncertainty" style="margin-left:0.5in;text-align:left;text-indent:-0.5in">APPENDIX D. MEASUREMENT UNCERTAINTY</div>

<div data-id="appendix-e-annual-report-format" style="margin-left:0.5in;text-align:left;text-indent:-0.5in">APPENDIX E. ANNUAL REPORT FORMAT</div>

CONTENTS

Code of Practice 4: The Calibration, Testing and Commissioning Requirements of Metering Equipment for Settlement Purposes V18.0

Defined Terms

Cross-references