IEC 61936-1:2021 is a comprehensive standard that covers various aspects of power installations. Some of the key topics addressed in the standard include:
┌──────────────────────────────────────────────────────────┐ │ IEC 61936-1:2021 Scope │ ├──────────────────────────────────────────────────────────┤ │ ✔ Substations & Power Stations │ │ ✔ Industrial & Commercial Facilities │ │ ✔ Off-shore Wind/Generation Assets │ │ ✖ Excluded: Overhead Lines Between Stations │ │ ✖ Excluded: Prefabricated, Type-Tested Substation Units │ └──────────────────────────────────────────────────────────┘
| | Detail | | ---------------------------------- | ------------------------------------------------------------------------- | | Full designation | IEC 61936‑1:2021 | | Title | Power installations exceeding 1 kV AC and 1,5 kV DC – Part 1: AC | | Edition | 3.0 (2021) | | Pages | 245 | | Price | CHF 430 (approximately USD 480) | | Technical Committee | TC 99 (Insulation co‑ordination and system engineering of HV installations) | | Stability date | 2028 | | European version | EN IEC 61936‑1:2021 + A11:2025 | | Key amendments | A11:2025 (CENELEC) effective February 2026 | | Supersedes | IEC 61936‑1:2010 (including Amendment 1:2014) |
and renewable energy infrastructure Key Technical Exclusions iec 6193612021 link
: Agencies like ANSI (United States), BSI (United Kingdom), or DIN (Germany) provide localized or adopted versions (e.g., BS EN IEC 61936-1:2021). If you need help implementing this standard, let me know: What nominal voltage level is your project using? Are you designing an indoor or outdoor substation?
The standard applies to all electrical power installations operating at nominal voltages and nominal frequencies up to and including 60 Hz . Covered Installations
: Clear lines are now drawn between the erection phase and subsequent operations like maintenance and repair. IEC 61936-1:2021 is a comprehensive standard that covers
Do you need specific for a particular voltage level?
If this "link" to the ground is broken or poorly designed (violating the standard), the ground around the substation can become electrified. A person walking nearby—feeling safe because they aren't touching any equipment—could be electrocuted just by standing on the grass. This phenomenon, called "Step and Touch Potential," is a central character in the horror stories this standard is written to prevent.
The standard, titled "Power installations exceeding 1 kV AC and 1,5 kV DC – Part 1: AC" , serves as the international benchmark for the design and erection of high-voltage electrical power installations. Published in July 2021, this third edition replaces the 2010 version, introducing critical technical updates to align with modern engineering practices and safety protocols. Core Objectives and Scope Are you designing an indoor or outdoor substation
The safety and reliability of high-voltage power systems are paramount for modern society. IEC 61936-1:2021 provides the "common rules" for the design and erection of electrical power installations, serving as the primary reference for engineers, utilities, and regulators.
The 2021 edition replaces the previous 2010 version with approximately 20 major changes, including:
Power systems within large-scale commercial or industrial buildings.
IEC 61936-1:2021 has significant implications for the industry, particularly for companies and organizations involved in the design, construction, and maintenance of high-voltage power installations. Some of the key implications include:
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