Standards

1. ANSI C12.1-2026 Unreviewed

   The code sets performance criteria for new AC watthour meters, demand meters and related devices, acceptable in-service performance levels for revenue meters, and recommended measurements, installation requirements and test schedules.

2. ANSI/NETA ATS-2025 Standard for Acceptance Testing Specifications Agent reviewed

   ANSI/NETA ATS-2025 is the NETA standard of acceptance testing specifications for electrical power equipment and systems before first energization.

3. ANSI/NETA ECS-2024 Standard for Electrical Commissioning Specifications Unreviewed

   ANSI/NETA ECS-2024 is the designation of the document titled ANSI/NETA ECS-2024 Standard for Electrical Commissioning Specifications.Value: ANSI/NETA ECS-2024.

4. ANSI/NETA MTS-2023 Standard for Maintenance Testing Specifications Unreviewed

   ANSI/NETA MTS-2023 is the designation of the document titled ANSI/NETA MTS-2023 Standard for Maintenance Testing Specifications.Value: ANSI/NETA MTS-2023.

5. FAA AC 150/5345-10H Unreviewed

   The circular contains a specification for constant current regulators and for a monitor used with airport lighting circuits, and it cancels the earlier revision G.

6. IEEE Guide for Field Testing of Relaying Current Transformers Unreviewed

   IEEE C57.13.1-2017 is the designation of the document titled IEEE Guide for Field Testing of Relaying Current Transformers.Value: IEEE C57.13.1-2017.

7. IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications Unreviewed

   IEEE 450-2020 is the designation of the document titled IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications.Value: IEEE 450-2020.

8. IEEE Recommended Practice for Testing Insulation Resistance of Electric Machinery Agent reviewed

   IEEE 43-2013 is the IEEE recommended practice for direct-voltage insulation resistance and polarization index measurements on machine windings.

9. IEEE Recommended Practice for the Design of DC Power Systems for Stationary Applications Unreviewed

   IEEE 946-2020 is the designation of the document titled IEEE Recommended Practice for the Design of DC Power Systems for Stationary Applications.Value: IEEE 946-2020.

10. IEEE Standard for General Requirements for Dry-Type Distribution and Power Transformers Unreviewed

    IEEE C57.12.01-2020 is the designation of the document titled IEEE Standard for General Requirements for Dry-Type Distribution and Power Transformers.Value: IEEE C57.12.01-2020.

11. IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers Unreviewed

    IEEE C57.12.00-2021 is the designation of the document titled IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers.Value: IEEE C57.12.00-2021.

12. IEEE Standard for Harmonic Control in Electric Power Systems Unreviewed

    IEEE 519-2022 is the designation of the document titled IEEE Standard for Harmonic Control in Electric Power Systems.Value: IEEE 519-2022.

13. IEEE Standard for High Accuracy Instrument Transformers Unreviewed

    IEEE C57.13.6-2005 is the designation of the document titled IEEE Standard for High Accuracy Instrument Transformers.Value: IEEE C57.13.6-2005.

14. IEEE Standard Practices and Requirements for Semiconductor Power Rectifier Transformers Unreviewed

    IEEE C57.18.10-2021 is the designation of the document titled IEEE Standard Practices and Requirements for Semiconductor Power Rectifier Transformers.Value: IEEE C57.18.10-2021.

15. IEEE Standard Requirements for Instrument Transformers Unreviewed

    IEEE C57.13-2016 is the designation of the document titled IEEE Standard Requirements for Instrument Transformers.Value: IEEE C57.13-2016.

16. IEEE Standard Test Code for Dry-Type Distribution and Power Transformers Unreviewed

    IEEE C57.12.91-2020 is the designation of the document titled IEEE Standard Test Code for Dry-Type Distribution and Power Transformers.Value: IEEE C57.12.91-2020.

17. IEEE/IEC International Standard: Power transformers, Part 21: Standard requirements, terminology, and test code for step-voltage regulators Unreviewed

    IEEE/IEC C57.15-2017 is the designation of the document titled IEEE/IEC International Standard: Power transformers, Part 21: Standard requirements, terminology, and test code for step-voltage regulators.Value: IEEE/IEC C57.15-2017.

18. NFPA 70, National Electrical Code (NEC) Unreviewed

    NFPA 70 is the designation of National Electrical Code (NEC), which the publisher catalog lists in its 2026 edition.Value: NFPA 70.

19. Utility-Type Battery Chargers Unreviewed

    NEMA PE 5-1997 (R2003) is the designation of the document titled Utility-Type Battery Chargers.Value: NEMA PE 5-1997 (R2003).