Working Groups Meeting at the Spring 2024 Meeting
See the Meeting Schedule Link for more information.
| 3.3.11 – Continuous revision of C62.11 |
| 3.4.8 – P&C of Transformers |
| 3.4.9 – Surge Protection of AC Machines |
| 3.4.14 – HV Arrester Application Guide |
| 3.4.18 – Insulation Coordination |
| 3.5.7 – Neutral Grounding |
| 3.5.7 TF3 and TF4 |
| 3.6.2 & .3 – LV Solid State SPD Components & Application Guide – Session 1 |
| 3.6.2 & .3 – LV Solid State SPD Components & Application Guide – Session 2 |
| 3.6.4 – Characterization on LV Circuits |
| 3.6.7 – LV Comm SPDs |
| 3.6.10 – Surge Protection of Equipment Connected to Both LV AC & Comm Circuits |
| 3.6.12 – Photovoltaic Facilities Protection Guide |
| 3.6.13 – Smart Grid Protection Guide |
| 3.6.14 – Electric Vehicle Supply Equipment |
| 3.6.15 – LV AC Power System SPDs Combining 3.6.6 and 3.6.9 meetings |
| SC 3.2 Definitions / Bibliography |
| SC 3.3, 3.4, 3.5 – HV Sub-Committee |
| SC 3.6 – LV Sub-Committee |
| SC 3.7 |
Open Projects/PARs as of 02-26-2024
| Project Number | Project Type | Committee | Project Title | Scope | Purpose |
| P1862 | Revision | PE/SWG/AdsCom/1862 | Recommended Practice for Overvoltage and Insulation Coordination of Transmission Systems at 1 MV Alternating Current (ac) and Above | This recommended practice applies to transmission system at 1 MV ac and above. It defines standard insulation levels and specifies procedures for selecting insulation levels of ac transmission lines and substations. It also describes reliability criteria under switching and lightning overvoltages. Suggestions on insulation coordination design are described. Overvoltage mitigation measures are recommended according to the characteristics of such ac systems. Some examples of insulation coordination are also presented. | Ultra-high voltage (UHV) ac power transmission system is an effective approach to achieve efficient allocation of energy resources utilizing the advantages of large capacity with long distance, and low loss. Some countries have already carried out research on UHV technologies, and several UHV ac projects have been constructed and put into operation. This recommended practice is formulated specifically for the design and application of insulation coordination for transmission systems at 1 MV ac and above. |
| P2770 | New | PE/SPDC/HV3.3.11 | 60099-11 Surge Arresters – Part 11: Metal-Oxide Line Surge Arresters to Protect Power Line Insulation | This standard defines the design/type tests, routine test, acceptance tests and classifications for line surge arresters (LSA). The arresters covered by this standard are Non-Gapped Line Arresters (NGLA) and Externally Gapped Line Arresters (EGLA) for use on AC or DC transmission and distribution power lines with system voltages > 1kV. | To define tests that demonstrate that the line surge arrester (LSA) can survive the rigors of reasonable environmental conditions and system phenomena while protecting equipment and/or the system from damaging overvoltages caused by lightning, switching, and other system disturbances. |
| P3170 | New | PE/SPDC/UHVAC-CMOA | Recommended Practice for Controllable Metal Oxide Arrester of 1 MV Ultra High Voltage (UHV) Alternating Current (AC) System | This recommended practice applies to a Controllable Metal Oxide Arrester (CMOA) device designed to limit the switching overvoltage for 1 MV UHV AC systems. The recommended practice specifies the use conditions and overall technical characteristics of a CMOA device. Technical recommendations for the arrester body, controllable switch (including mechanical switch, power electronic switch, gap, and fast switch) and controller (controllable device) are described. Recommendations for test and inspection, marking, transportation, storage, material delivery, and operation and maintenance are also provided. | The purpose of this recommended practice is to provide guidance for practitioners, and support the correct application, operation and maintenance of CMOA devices. At the same time, it provides reference to engineers, teachers and students who are engaged in the research of UHV AC transmission technology. |
| P3369 | New | PE/SPDC/STLI | Standard for Testing of Lightning-protective Insulator of Overhead Transmission Lines | This standard describes the testing procedures for evaluating the flashover prevention of lightning-protective insulators caused by lightning on alternating current (AC) overhead transmission lines. | This standard defines tests that demonstrate that a lightning-protective insulator of AC overhead transmission lines can survive the rigors of reasonable environmental conditions and system phenomena while protecting AC overhead transmission lines from flashover caused by lightning. |
| PC62.11 | Revision | PE/SPDC/HV3.3.11 | Standard for Metal-Oxide Surge Arresters for AC Power Circuits (>1 kV) | This standard applies to metal-oxide surge arresters (MOSAs) designed to repeatedly limit the voltage surges on 48 Hz to 62 Hz power circuits (>1000 V) by passing surge discharge current and automatically limiting the flow of system power current. This standard applies to devices for separate mounting and to devices supplied integrally with other equipment. | This standard defines tests that demonstrate that an arrester can survive the rigors of reasonable environmental conditions and system phenomena while protecting equipment and/or the system from damaging overvoltages caused by lightning, switching, and other system disturbances. |
| PC62.21 | Revision | PE/SPDC/HV3.4.9 | Guide for the Application of Surge Voltage Protective Equipment on AC Rotating Machinery 1000 Volts and Greater | This guide covers the application of surge voltage protective equipment to AC rotating machines rated 1000 V and greater. The guide does not cover motors applied in solid-state switched adjustable speed drives. This guide covers the insulation surge withstand strength of motors and generators with windings having form-wound multi-turn coils and the application of surge protection to form-wound multi-turn coil motors. | This guide aids users at all levels of surge protection knowledge in deciding whether particular machines should have surge protection. The guide may be used in estimating the surge withstand capability and switching surge exposure of AC rotating machinery. The manufacturer should be contacted for specific insulation surge voltage withstand values for machinery of particular interest or importance. For those machines which should be protected, the purpose is to provide guidance in selecting and applying the protective devices. A simple look-up method using tables and a graph is provided for quick estimation of surge rise times and surge voltage levels, and for general use where 85% or greater accuracy is acceptable. This method is based on single-phase analysis, neglecting the influence of ground mode surge propagation. A more complex method is provided by formulas to model the three-phase and ground mode propagation. The formulas can be used with calculators or personal computers. |
| PC62.22 | Revision | PE/SPDC/HV3.4.14 | Guide for the Application of Metal-Oxide Surge Arresters for Alternating-Current Systems Over 1000 Volts | This guide covers the application of metal-oxide surge arresters (see IEEE Std C62.11-2020) to safeguard electric power equipment against the hazards of abnormally high voltage surges of various origins. Step-by-step directions toward proper solutions for various applications are provided. In many cases, the prescribed steps are adequate. More complex and special situations requiring study by experienced engineers are described and specific solutions are included. These procedures are based on theoretical studies, test results, and experience. This application guide does not cover the application of low-voltage surge protective devices below 1000 V alternating current (ac), except when applied to the secondary of a transformer. | Because the subject is broad and has many ramifications, this guide provides detailed considerations and instructions to properly apply surge arresters to achieve acceptable insulation coordination for various types of equipment which are designed and tested to different standards and may be applied under different system typologies. In addition, this guide provides instructions to interpret the test results of IEEE Standard for Metal-Oxide Surge Arresters for AC Power Circuits (1kV) [IEEE Std C62.11-2020 TM], which has changed since the last revision of this guide. |
| PC62.220 | New | PE/SPDLV/3.6.13 Smart Grid Protection | Guide for the Application of Surge Protective Devices for the Smart Grid | This document focuses on surge protective devices that operate on systems with voltages 1,000 Volts(ac)/1500 Volts(dc) and below. However, it may include cases that involve smart grid equipment attaching or coupling to higher voltage circuits such as electric utility medium voltage distribution. Included within this scope are communications, data acquisition equipment, and associated circuitry and interfaces.
Guidance is given on protecting the variety of mostly electronic equipment that will be added to homes, businesses, government facilities and industrial plants as part of the Smart Grid. |
The purpose of this document is to outline how surge protective devices play an integral part in improving the operability and reliability of the Smart Grid. |
| PC62.37 | Revision | PE/SPDLV/LV3.6.2 | Standard for Test Methods and Preferred Values for Thyristor Surge Protective Components | This standard sets terms, test methods, test circuits, measurement procedures and preferred result values for silicon thyristor-based surge protective components used for overvoltage or overcurrent or both protection in low-voltage information technology communications system items. The thyristor variants covered are: Unidirectional characteristic Bidirectional characteristic Two terminal (diode) fixed voltage Three or more terminal gate controlled Integrated series diode types for low capacitance. |
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| PC62.38 | New | PE/SPDLV/LV3.6.2 | Test Methods and preferred values for hybrid integrated circuit components containing gas discharge tube and metal oxide varistor technologies | This standard sets terms, test methods, test circuits, measurement procedures, and preferred result values for two-terminal hybrid integrated circuit surge protective components (SPCs) containing gas discharge tube and metal oxide varistor technologies connected either in series or parallel. These SPCs are used in the construction of surge protective devices (SPDs) and equipment used in Information & Communications Technologies, (ICT) networks with voltages up to AC 1000 V and DC 1500 V, to mitigate overvoltage surges. Series connected gas discharge tube and metal oxide varistor configurations are applicable for AC mains surge protection and the tests reflect this use. Parallel connected gas discharge tube and metal oxide varistor configurations are suited to communications line surge protection and the tests reflect this use. This standard contains information on — terminology; — letter symbols; — graphical symbols; — environments; — essential ratings and characteristics; — rating verification and characteristic measurement; — mechanical requirements and identification; — preferred values; — qualification. |
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| PC62.39 | Revision | PE/SPDLV/LV3.6.2 | Standard for Test Methods and Preferred Values for Self-Restoring Current-Limiter Components Used in Telecommunication Surge Protection | This standard sets terms, test methods, test circuits, measurement procedures and preferred result values for series connected, self-restoring current-limiter components used in low-voltage telecommunication circuit surge protection. It is only applicable for components in telecommunications circuits with sinusoidal ringing voltages up to 150 V rms at 15 Hz to 70 Hz and dc powering voltages up to 400 V. The self-restoring current limiters covered by this standard have the following properties: – Excessive current causes a transition from a low-resistance state to a high-resistance state – Reverts to a low-resistance state when the excessive current ends – Directly operated by the current flow through the component – Solid-state (no moving parts) – Withstands specified levels of impulse – Withstands specified ac voltage levels when in the high-resistance state Examples of this type of current-limiter technology are positive temperature coefficient (PTC) stepfunction theremistors of ceramic or polymeric material and silicon semiconductor based electronic circuits. This standard does not cover self-restoring current-limiter components used in applications other than low-voltage telecommunication circuit surge protection such as heaters, inrush-current limiters, or sensing devices. Current interrupting type components, which reduce the current to zero by a mechanical circuit break, are not covered by this standard. In this standard, a telecommunications circuit is a circuit that uses metallic conductors to handle the remote transmission of information, such as data, communications, and signaling. | The test criteria and terms of this standard provide a means of component comparison and a common engineering language for users and manufacturers of self-restoring current-limiter components intended for use in low-voltage telecommunication circuit surge protection. The test and measurement of low-voltage telecommunication (data, communications, and signalling) surge protectors is given in IEEE Std C62.36 (IEEE Standard Test Methods for Surge Protectors and Protective Circuits Used in Information and Communications Technology (ICT) Circuits, and Smart Grid Data Circuits). This standard provides the corresponding component tests for the surge protector non-surge and active tests. |
| PC62.41.2 | Revision | PE/SPDLV/LV3.6.4 | Recommended Practice on Characterization of Surges in Low-Voltage (1000 V and less) AC Power Circuits | The scope of this recommended practice is to characterize the surge environment at locations on ac power circuits described in IEEE Std C62.41.1 by means of standardized waveforms and other stress parameters. The surges considered in this recommended practice do not exceed one half-cycle of the normal mains waveform (fundamental frequency) in duration. They can be periodic or random events and can appear in any combination of line, neutral, or grounding conductors. They include surges with amplitudes, durations, or rates of change sufficient to cause equipment damage or operational upset. While surge protective devices (SPDs) acting primarily on the amplitude of the voltage or current are often applied to divert the damaging surges, the upsetting surges might require other remedies. | The purpose of this recommended practice is to offer to equipment designers and users a set of standard and additional surge-testing waveforms and stress levels derived from the surge environment described in the companion guide IEEE Std C62.41.1. The selection and specification of which waveform and what stress level should be considered for specific equipment remain the prerogative and responsibility of designers and users. This recommended practice is only the basis for making an informed decision made possible by a simplification of a complex database. This simplification will then allow consistent, repeatable, and cost-effective specification of surge performance for equipment connected to low-voltage ac power circuits. |
| PC62.42.5 | New | PE/SPDLV/LV3.6.3 | Guide for the Application of Surge-Protective Components in Surge Protective Devices and Equipment Ports – Part 5: 2-Terminal Electronic Current Limiters | The C62.42 guide series covers surge protective components used in Information and Communications Technology (ICT) surge protective devices (SPDs) and equipment ports. This part 5 is for 2-terminal electronic current limiters (ECLs) having a continuous characteristic. Items covered are: • ECL terms and definitions • Evolution of ECL technology • Essential characteristics and ratings • Applications examples |
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| PC62.42.7 | New | PE/SPDLV/LV3.6.3 | Guide for the Application of Thyristor Surge Protective Components | The IEEE C62.42™ guide series covers surge protective components (SPCs) used in power and telecom surge protective devices (SPDs) and equipment ports. This part, Part 7 of the series, describes Silicon Thyristor SPCs, including the fixed voltage, gated and low-capacitance (for broadband use) thyristor technology variants. Component construction, characteristics, ratings and application examples are also described. | |
| PC62.44 | Revision | PE/SPDLV/PE/SPDCLV/WG3.6.15 | Guide for the Application of Low-Voltage (1000 V rms or Less) Surge Protective Devices Used on Secondary Distribution Systems (Between the Transformer Low-Voltage Terminals and the Line Side of the Service Equipment) | This guide encompasses the application of surge protective devices (SPDs) (secondary arresters) from the secondary terminals of the distribution transformer to the line side of the service equipment. | The purpose of this guide is to address many of the aspects to be considered when applying surge protective devices between the secondary terminals of the distribution transformer and the line side of the service equipment. |
| PC62.50 | Revision | PE/SPDLV/LV3.6.10 | Standard for Performance Criteria and Test Methods for Plug-in (Portable) Multiservice (Multiport) Surge-Protective Devices for Equipment Connected to a 120 V/240 V Single Phase Power Service and Metallic Conductive Communication Line(s) | The scope of this standard is to define performance criteria and test methods for plug-in (portable) multiservice (multiport) surge protective devices (MSPDs) intended to protect equipment connected to one or more metallic conductive communication line(s) and a 120 V/240 V single phase ac power service, with the neutral grounded at the service equipment. These devices are intended for installation at receptacles supplying power via a branch circuit of the installation, and jointly at receptacles or ports delivering signals from communications services, for the purpose of providing protected power and signals to a variety of information technology equipment. | The purpose of this standard is to provide a uniform specification/test document for design and application engineers, specifiers, and test laboratories to use in designing and testing this type of surge protective device. |
| PC62.55 | Revision | PE/SPDLV/LV3.6.7 | Guide for Surge Protection of DC Power Feeds to Remote Radio Heads | This guide covers the application of Surge Protection Devices (SPDs) used to protect the dc power feeds of remote radio heads (RRHs) and power supplies of optical fiber cable systems feeding the antenna systems. | |
| PC62.72 | Revision | PE/SPDLV/PE/SPDCLV/WG3.6.15 | Guide for the Application of Surge-Protective Devices for Use on the Load Side of Service Equipment in Low-Voltage (1000 V or Less, 50 Hz or 60 Hz) AC Power Circuits | This guide covers the application of surge-protective devices (SPDs) for installation on the load side of the service equipment for 50 Hz or 60 Hz, ac power circuits rated 1000 V rms or less. | The purpose of this guide is to provide users, specifiers, installers and manufacturers with guidance on the use, selection, application and installation of SPDs for installation on the load side of the service equipment for 50 Hz or 60 Hz, ac power circuits rated 1000 V rms or less. |
| PC62.92.3 | Revision | PE/SPDC/HV3.5.7 | Guide for the Application of Neutral Grounding in Electrical Utility Systems, Part III -Generator Auxiliary Systems | This guide summarizes the general considerations in neutral grounding of electrical utility generating station auxiliary power systems. It discusses the factors to be considered in selecting between the appropriate grounding classes and specifying equipment ratings. This guide applies to both medium-voltage (1 kV to15 kV) and low-voltage (less than 1 kV) auxiliary power systems. The intent of this guide is to discuss grounding methods which may be used to limit equipment damage by limiting excessive fault currents and system overvoltages during ground faults. The emphasis is on reliability and availability of auxiliary power system service, achieved through control of ground-fault currents and transient overvoltages.
This guide is specifically written for electrical utility systems and does not consider the neutral grounding requirements for dispersed storage and generation. These requirements must take into consideration the restrictions imposed by the specific network to which the dispersed storage or generation is connected. However, neutral grounding of dispersed storage and generation needs to be coordinated with the electrical utility system. |
The purpose of this guide is to present some basic considerations for the selection of neutral grounding parameters that will provide for the control of ground-fault currents and overvoltage on auxiliary systems of electrical utility three-phase generators. |
| PC62.92.4 | Revision | PE/SPDC/HV3.5.7 | Guide for the Application of Neutral Grounding in Electrical Utility Systems–Part IV: Distribution | This part of the guide is concerned with the neutral grounding of single- and three-phase ac electric-utility primary distribution systems with nominal voltages in the range of 2.4 kV to 34.5 kV. For the purpose of this guide, the term “distribution” includes the substation providing power to distribution feeders, the distribution feeders, and the distribution transformers providing service at utilization voltages. The scope of this guide does not include the grounding of the low-voltage secondary systems supplied by distribution transformers or consumer-owned facilities that are covered by other documents such as the National Electrical Code(R) (NEC(R)) (NFPA 70, 2011 Edition) | The purpose of this guide is to provide information regarding neutral grounding of electric-utility primary distribution systems with nominal voltages in the range of 2.4 kV to 34.5 kV. Classes of distribution systems grounding are defined while basic consideration is given to economics, control of temporary overvoltages (TOVs), control of ground fault currents, and ground relaying. |
| PC62.92.6 | Revision | PE/SPDC/HV3.5.7 | Guide for Application of Neutral Grounding in Electrical Utility Systems, Part VI–Systems Supplied by Current-Regulated Sources | This guide applies to three-phase electrical utility systems and is Part VI of the IEEE C62.92(TM) series. This part provides definitions and considerations related to system grounding where the dominant sources of system energization are current-regulated or power-regulated power conversion devices. | This guide defines neutral grounding in the context of current-regulated and power-regulated sources and presents basic considerations of the selection of neutral grounding parameters that will provide for the control of overvoltage on three-phase electrical utility systems in which such sources are dominant. |
Active Standards as of 02-26-2024
| Standard Number | Year | Committee | Project Title | Standard Expiration Date | SASB Approval Date |
| 2771 | 2021 | PE/SPDC/Arcing Horns | IEEE Guide for Parameter Configuration of Arcing Horns of DC Earth Electrode Lines | 31 Dec 2031 | 09 Nov 2021 |
| C62.11 | 2020 | PE/SPDC/HV3.3.11 | IEEE Standard for Metal-Oxide Surge Arresters for AC Power Circuits (>1 kV) | 31 Dec 2030 | 06 May 2020 |
| C62.23 | 2017 | PE/SPDC/HV3.4.13 | IEEE Application Guide for Surge Protection of Electric Generating Plants | 31 Dec 2027 | 06 Dec 2017 |
| C62.230 | 2022 | PE/SPDLV/3.6.14/EVSE Surge Protection | IEEE Guide for Surge Protection of Electric Vehicle Infrastructure | 31 Dec 2032 | 08 Nov 2022 |
| C62.31 | 2020 | PE/SPDLV/LV3.6.1 | IEEE Standard for Test Methods and Preferred Values for Low-Voltage Gas Discharge Tube Surge-Protective Components | 31 Dec 2030 | 24 Sep 2020 |
| C62.33 | 2016 | PE/SPDLV/LV3.6.2 | IEEE Standard for Test Methods and Performance Values for Metal-Oxide Varistor Surge Protective Components | 31 Dec 2026 | 07 Dec 2016 |
| C62.34 | 2017 | PE/SPDLV/LV3.6.9 | IEEE Standard for Test Methods and Performance of Low-Voltage (1000 V rms or Less) Surge Protective Devices Used on Secondary Distribution Systems (Between the Transformer Low-Voltage Terminals and the Line Side of the Service Equipment) | 31 Dec 2027 | 28 Sep 2017 |
| C62.36 | 2016 | PE/SPDLV/LV3.6.7 | IEEE Standard Test Methods for Surge Protectors and Protective Circuits Used in Information and Communications Technology (ICT) Circuits, and Smart Grid Data Circuits | 31 Dec 2026 | 15 May 2016 |
| C62.41.3 | 2020 | PE/SPDLV/LV3.6.4 | IEEE Guide for Interactions between Power System Disturbances and Surge Protective Devices | 31 Dec 2030 | 24 Sep 2020 |
| C62.42.0 | 2016 | PE/SPDLV/LV3.6.3 | IEEE Guide for the Application of Surge-Protective Components in Surge-Protective Devices and Equipment Ports–Overview | 31 Dec 2026 | 07 Dec 2016 |
| C62.42.1 | 2016 | PE/SPDLV/LV3.6.3 | IEEE Guide for the Application of Surge-Protective Components in Surge Protective Devices and Equipment Ports–Part 1: Gas Discharge Tubes (GDTs) | 31 Dec 2026 | 22 Sep 2016 |
| C62.42.2 | 2022 | PE/SPDLV/LV3.6.3 | IEEE Guide for the Application of Surge-Protective Components in Surge-Protective Devices and Equipment Ports–Part 2: Metal- Oxide Varistors (MOVs) | 31 Dec 2032 | 09 Feb 2022 |
| C62.42.3 | 2017 | PE/SPDLV/LV3.6.3 | IEEE Guide for the Application of Surge Protective Components in Surge Protective Devices and Equipment Ports — Part 3: Silicon PN-Junction | 31 Dec 2027 | 23 Mar 2017 |
| C62.42.4 | 2020 | PE/SPDLV/LV3.6.3 | IEEE Guide for the Application of Surge-Protective Components in Surge Protective Devices and Equipment Ports–Part 4: Thermally Activated Current Limiters | 31 Dec 2030 | 04 Jun 2020 |
| C62.42.6 | 2018 | PE/SPDLV/LV3.6.3 | IEEE Guide for the Application of Surge-Protective Components in Surge Protective Devices and Equipment Ports–Part 6 High Frequency Signal Isolation Transformers | 31 Dec 2028 | 05 Dec 2018 |
| C62.43.0 | 2017 | PE/SPDLV/LV3.6.7 | IEEE Guide for Surge Protectors and Protective Circuits Used in Information and Communications Technology Circuits, Including Smart Grid Data Networks–Overview | 31 Dec 2027 | 23 Mar 2017 |
| C62.43.1 | 2020 | PE/SPDLV/LV3.6.7 | IEEE Guide for Surge Protectors and Surge Protective Circuits Used in Information and Communication Technology Circuits (ICT), Including Smart Grid–Part 1 Applications | 31 Dec 2030 | 30 Jan 2020 |
| C62.43.1a | 2023 | PE/SPDLV/LV3.6.7 | IEEE Approved Draft Guide for Surge Protectors and Surge Protective Circuits Used in Information and Communications Technology (ICT), Including Smart Grid–Part 1 Applications – Amendment 1 | 31 Dec 2033 | 21 Sep 2023 |
| C62.44 | 2016 | PE/SPDLV/LV3.6.9 | IEEE Guide for the Application of Low-Voltage (1000 V rms or Less) Surge Protective Devices Used on Secondary Distribution Systems (Between the Transformer Low-Voltage Terminals and the Line Side of the Service Equipment) | 31 Dec 2026 | 07 Dec 2016 |
| C62.55 | 2020 | PE/SPDLV/LV3.6.7 | IEEE Guide for Surge Protection of DC Power Feeds to Remote Radio Heads | 31 Dec 2030 | 04 Jun 2020 |
| C62.59 | 2019 | PE/SPDLV/LV3.6.2 | IEEE Standard for Test Methods and Preferred Values for Silicon PN-Junction Clamping Diodes | 31 Dec 2029 | 05 Sep 2019 |
| C62.62 | 2018 | PE/SPDLV/LV3.6.6 | IEEE Standard Test Specifications for Surge-Protective Devices (SPDs) for Use on the Load Side of the Service Equipment in Low-Voltage (1000 V and Less) AC Power Circuits | 31 Dec 2028 | 15 Feb 2018 |
| C62.69 | 2016 | PE/SPDLV/LV3.6.2 | IEEE Standard for the Surge Parameters of Isolating Transformers Used in Networking Devices and Equipment | 31 Dec 2026 | 29 Jan 2016 |
| C62.69a | 2017 | PE/SPDLV/LV3.6.2 | IEEE Standard for the Surge Parameters of Isolating Transformers used in Networking Devices and Equipment – Amendment 1: Addition of Saturated Core Secondary Winding Parameters | 31 Dec 2026 | 23 Mar 2017 |
| C62.72 | 2016 | PE/SPDLV/LV3.6.6 | IEEE Guide for the Application of Surge-Protective Devices for Use on the Load Side of Service Equipment in Low-Voltage (1000 V or Less, 50 Hz or 60 Hz) AC Power Circuits | 31 Dec 2026 | 03 Mar 2016 |
| C62.72a | 2020 | PE/SPDLV/LV3.6.6 | IEEE Guide for the Application of Surge-Protective Devices for Use on the Load Side of Service Equipment in Low-Voltage (1000 V or Less, 50 Hz or 60 Hz) AC Power Circuits–Amendment 1: SPD Disconnector Application Considerations and Coordination | 31 Dec 2026 | 04 Jun 2020 |
| C62.82.2 | 2022 | PE/SPDC/HV3.4.18 | IEEE Guide for the Application of Insulation Coordination | 31 Dec 2032 | 03 Dec 2022 |
| C62.92.1 | 2016 | PE/SPDC/HV3.5.7 | IEEE Guide for the Application of Neutral Grounding in Electrical Utility Systems–Part I: Introduction | 31 Dec 2026 | 07 Dec 2016 |
| C62.92.2 | 2017 | PE/SPDC/HV3.5.7 | IEEE Guide for the Application of Neutral Grounding in Electrical Utility Systems, Part II–Synchronous Generator Systems | 31 Dec 2027 | 14 Feb 2017 |
| C62.92.4 | 2014 | PE/SPDC/HV3.5.7 | IEEE Guide for the Application of Neutral Grounding in Electrical Utility Systems–Part IV: Distribution | 31 Dec 2024 | 10 Dec 2014 |
| C62.92.5 | 2020 | PE/SPDC/HV3.5.7 | IEEE Guide for the Application of Neutral Grounding in Electrical Utility Systems–Part V: Transmission Systems and Subtransmission Systems | 31 Dec 2030 | 24 Sep 2020 |
| C62.92.6 | 2017 | PE/SPDC/HV3.5.7 | IEEE Guide for Application of Neutral Grounding in Electrical Utility Systems, Part VI–Systems Supplied by Current-Regulated Sources | 31 Dec 2027 | 28 Sep 2017 |