Saudi Arabian Grid Code May 2024

Meters (i) Meters shall be of the three-element type independent for each phase, rated for the required Site, comply with IEC Standard 62052-11: Electricity Metering Equipment (AC) — General requirements, tests, and testing conditions or IEC Standard 62053-21: Electricity Metering Equipment (AC) — Particular requirements (or their equivalent ANSI/IEEE/Saudi national/TSP standards), for static watt-hour meter and other types of Meters, and shall be of the accuracy class of 0.2 or equivalent. The Meters shall measure and locally display at least the kW, kWh, kvar, kvarh, and cumulative Demand, with additional features such as time-of-use, maintenance records, Power Quality monitoring, and pulse output. The pulse output for remote metering must be for all the major measurement features. (ii) The Meters may be digital or analogue as per the agreement between the TSP and the User. Chapter 7 - Metering Code The Saudi Arabian Grid Code Updated Version: May 2024 (iii) A cumulative record of the parameters measured shall be available on the Meter. Bi-directional Meters shall have two such records available. If combined Active Energy and Reactive Energy Meters are provided, then a separate record shall be provided for each measured quantity and direction. The loss of auxiliary supply to the Meter shall not erase these records. (iv) Data storage shall be provided internally or externally to the Meter by way of a data logger which shall provide an output per measured quantity. Testing and Inspection of Metering Installations 7.9.1 All Meters, CTs and VTs, shall be tested for accuracy at initial Commissioning. Tests shall also be carried out thereafter at intervals not less frequently than every twelve (12) months for Main Meters and not less than six (6) years for CTs and VTs, or as specified in the relevant Connection Agreement to verify that their operation is within the prescribed limits of error. 7.9.2 Test terminals shall be provided for Main and Check Meters to facilitate on site tests. 7.9.3 Meters shall be tested in service and should be tested out of service only if the accuracy is suspected to be not within the limits. 7.9.4 A User may request a test and shall bear the full cost of such testing if the Meter is found to be not operating within the prescribed limits. Tests will be organized such that all relevant parties are notified of the tests, and are invited to witness them, if required. Test results will be made available to the User involved. 7.9.5 Meters may also be tested by the TSP whenever the TSP notices or suspects an error in metering. 7.9.6 In carrying out of tests on Main Meters, any interruption to measurement will be taken account of and appropriately compensated. The testing measurement will be taken by another Meter and will be appropriately compensated. 7.9.7 Care shall be taken in carrying out tests to ensure that any Interruption to measurement is avoided or minimized. 7.9.8 Certified test Equipment and reference standards (traceable to a recognized national or international standard) shall be used in such tests and if, by Chapter 7 - Metering Code The Saudi Arabian Grid Code Updated Version: May 2024 agreement, it is deemed necessary, an approved independent laboratory may be employed. 7.9.9 Where a test indicates that an error exceeds the limits of error prescribed in the applicable standards, then these errors shall be recorded before promptly adjusting, repairing or renewing the Metering Equipment (or part thereof) or replacing any defective components. 7.9.10 Pursuant to (7.9.9) above, the reading taken previously, and all charges based therein, shall be corrected on the basis of this test for a period as set in the applicable Connection Agreement.