December 14, 2025

Iec 6193612021 Link < RELIABLE >

The IEC 61936-1:2021 standard (Edition 3.0) updates safety and design requirements for high-voltage AC power installations exceeding 1 kV, superseding the 2010 version. This revision introduces critical technical improvements, including updated gas-insulated switchgear (GIS) requirements, enhanced environmental protections, and modified earthing safety criteria. Purchase the standard directly from the IEC Webstore. IEC 61936-1:2021

The official link for IEC 61936-1:2021 is available at the IEC Webstore

. This third edition is the primary international standard for the design and erection of AC electrical power installations with nominal voltages exceeding Key Technical Updates in the 2021 Edition

This version constitutes a technical revision that cancels and replaces the previous 2010 edition. Significant changes include: Clarified Scope

: Improved distinction between the erection of installations and subsequent maintenance or repair activities. Enhanced Safety Guidelines : Introduction of

, providing informative guidelines for safe working procedures where local regulations are unavailable. Refined Clearances

: Updated minimum clearances in air based on modern practices and specific safety requirements for bare conductors in closed areas. Asset-Specific Improvements : Reintroduced missing requirements for Gas-insulated switchgear (GIS) and improved regulations for transformer installations HVAC ventilation Fire & Earthing

: Modified fire protection clearances and updated safety criteria for earthing systems, including modified touch voltage curves. Where to Access or Buy EN IEC 61936-1:2021/A11:2025 - iTeh Standards

Understanding IEC 61936-1:2021 - The Latest Standard for Power Installations

The International Electrotechnical Commission (IEC) is a global organization that develops and publishes standards for electrical and electronic technologies. One of its most recent publications is IEC 61936-1:2021, which focuses on power installations exceeding 1 kV AC and 1.5 kV DC. This standard is crucial for ensuring the safety and efficiency of high-voltage power installations, and in this article, we will explore its significance, contents, and implications for the industry.

What is IEC 61936-1:2021?

IEC 61936-1:2021 is a standard that provides guidelines for the design, construction, and maintenance of power installations that operate at voltages exceeding 1 kV AC and 1.5 kV DC. The standard covers a wide range of applications, including power generation, transmission, and distribution systems, as well as industrial and commercial installations. iec 6193612021 link

Importance of IEC 61936-1:2021

The importance of IEC 61936-1:2021 cannot be overstated. High-voltage power installations can be hazardous if not designed, constructed, and maintained properly. The standard helps to ensure that such installations are safe for workers, the general public, and the environment. By following the guidelines set out in IEC 61936-1:2021, companies and organizations can minimize the risks associated with high-voltage power installations and ensure compliance with regulatory requirements.

Contents of IEC 61936-1:2021

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:

  1. Design and planning: The standard provides guidelines for the design and planning of power installations, including the selection of equipment, layout, and safety considerations.
  2. Safety requirements: IEC 61936-1:2021 outlines the safety requirements for power installations, including protection against electric shock, fire, and other hazards.
  3. Electrical equipment: The standard specifies the requirements for electrical equipment used in high-voltage power installations, including transformers, switchgear, and cables.
  4. Testing and commissioning: IEC 61936-1:2021 provides guidelines for testing and commissioning power installations to ensure that they are safe and functional.
  5. Maintenance and operation: The standard offers guidance on the maintenance and operation of power installations, including routine inspections, maintenance schedules, and emergency procedures.

Link to IEC 61936-1:2021

For those interested in accessing the full text of IEC 61936-1:2021, a link to the standard can be found on the IEC website or through various online databases that provide access to international standards. It is essential to note that IEC 61936-1:2021 is a copyrighted document, and users may need to purchase a copy or subscribe to a service that provides access to the standard.

Implications for the Industry

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:

  1. Compliance: Companies must ensure that their power installations comply with the requirements of IEC 61936-1:2021 to avoid regulatory penalties and reputational damage.
  2. Safety: The standard helps to ensure that power installations are safe for workers, the general public, and the environment, reducing the risk of accidents and injuries.
  3. Efficiency: IEC 61936-1:2021 promotes efficient design, construction, and maintenance of power installations, which can lead to cost savings and improved performance.
  4. Innovation: The standard provides a framework for innovation in the development of new technologies and solutions for high-voltage power installations.

Conclusion

IEC 61936-1:2021 is a critical standard for the power industry, providing guidelines for the design, construction, and maintenance of high-voltage power installations. By understanding the contents and implications of this standard, companies and organizations can ensure compliance, safety, efficiency, and innovation in their power installations. As the demand for electricity continues to grow, the importance of IEC 61936-1:2021 will only continue to increase, making it essential for industry professionals to stay up-to-date with the latest developments and best practices.

Recommendations

For companies and organizations involved in high-voltage power installations, we recommend:

  1. Accessing the full text of IEC 61936-1:2021: Obtain a copy of the standard from the IEC website or through online databases to ensure compliance with its requirements.
  2. Training and education: Provide training and education for employees on the requirements of IEC 61936-1:2021 and its implications for the industry.
  3. Reviewing and updating designs and procedures: Review and update designs, procedures, and maintenance schedules to ensure compliance with the standard.
  4. Engaging with industry experts: Engage with industry experts and consultants to ensure that power installations are designed, constructed, and maintained to the highest standards.

By following these recommendations, companies and organizations can ensure that their power installations are safe, efficient, and compliant with the requirements of IEC 61936-1:2021.

It seems you are looking for information on IEC 61936-1:2021 (the correct designation), likely with a typo in the search term ("6193612021" instead of "61936-1 2021").

IEC 61936-1:2021 is a critical international standard titled:
"Power installations exceeding 1 kV a.c. – Part 1: Common rules"

Here is a helpful guide to understanding and using this standard.

Key concepts and structure

  1. Fundamental safety principles

    • Protection of persons and property from electric shock, thermal effects, overcurrent, overvoltage and fault currents.
    • Risk assessment and mitigation measures.

  2. General design requirements

    • System identification: single-line diagrams, nominal voltages, earthing arrangements.
    • Selection of equipment rated for system voltage, frequency, and environmental conditions.
    • Clearances and creepage distances based on insulation coordination.

  3. Insulation coordination and overvoltages

    • Assign insulation levels (rated basic impulse level — BIL or Uc) and coordinate with surge arresters and insulation strength.
    • Consider switching and lightning overvoltages; apply protective devices.

  4. Earthing (grounding) and equipotential bonding

    • Define earthing system (solidly earthed, resistance earthed, isolated, compensated) and earthing grid design.
    • Protect against touch and step voltages; layout to limit touch/step potentials within safe limits.

  5. Protection against electric shock

    • Protective devices, barriers, interlocks, signage, restricted access and safe working clearances.
    • Procedures for isolation and earthing during maintenance.

  6. Short-circuit and fault studies

    • Calculate prospective short-circuit currents, interrupting ratings for switchgear and protective device settings.
    • Equipment ratings must exceed calculated fault current and thermal/mechanical stresses.

  7. Overcurrent protection and coordination

    • Select protective relays/fuses/circuit-breakers with correct time-current characteristics and coordination (selectivity) between stages.

  8. Switching, control and protection devices

    • Requirements for circuit-breakers, isolators, earthing switches, relays, control wiring and redundancy where needed.

  9. Cables and conductors

    • Sizing for current-carrying capacity, temperature rise, dielectric strength; mechanical protection for cables; route planning and separation.

  10. Busbars, busducts and switchgear

    • Mechanical support, clearances, insulation, cooling, monitoring and accessibility for maintenance.

  11. Indoor and outdoor installation specifics

    • Environmental considerations (pollution, humidity, corrosive atmospheres), building fire protection, ventilation and drainage.

  12. Testing, commissioning and maintenance

    • Pre-commissioning checks, insulation resistance tests, functional testing of protection schemes, routine periodic testing and maintenance schedules.

  13. Documentation

    • As-built drawings, single-line diagrams, equipment data sheets, protection settings, test reports, operating and maintenance manuals.

4. Fire Protection (Clause 8)

Transformer fire separation walls must be 120 minutes fire-rated (REI 120). Oil containment pits require a capacity of at least 100% of the transformer oil volume.

3.3 Gas-Insulated Switchgear (GIS) and SF6 Alternatives

A critical update involves the handling of switchgear. With the global push to reduce SF6 (Sulfur Hexafluoride) gas due to its high Global Warming Potential (GWP), the 2021 edition adapts design rules to accommodate GIS technologies that use alternative insulation gases (e.g., fluoroketones or compressed air). This includes updated pressure vessel safety guidelines and leak detection requirements.

5. Access and Egress (Clause 5.2)

Substations must have at least two emergency exits if the working area exceeds 300 m². Doors must open outward in the direction of escape.

The Correct Standard: IEC 61936-1:2017 + A1:2021

The closest valid match to your keyword is IEC 61936-1:2017+AMD1:2021. This is the consolidated version of Part 1: General rules with Amendment 1 published in 2021. The IEC 61936-1:2021 standard (Edition 3

✅ Correct Official Link:
IEC 61936-1:2017+AMD1:2021 CSV
(Note: This link leads to the official IEC Webstore. The standard costs CHF 345.00 as of 2025.)