IEC 61472:2013
Live working - Minimum approach distances for a.c. systems in the voltage range 72,5 kV to 800 kV - A method of calculation
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About This Item
IEC 61472:2013 provides a technical method for calculating minimum approach distances for live working on a.c. systems in the voltage range 72,5 kV to 800 kV. For engineering teams, utilities, and contractors, IEC 61472:2013 is relevant when reviewing work methods, defining safe working clearances, and supporting risk management for high-voltage activities. It helps structure technical assessment and documented evaluation where operating proximity to energized equipment must be controlled with consistency.
What is IEC 61472:2013?
This document sets out a calculation-based approach for minimum approach distances used in live working on high-voltage a.c. systems. Its scope is centered on determining separation distances that support safe working practices, technical validation, and compliance workflows in transmission and substation environments. As a primary technical reference, it is commonly used during engineering documentation review, conformity assessment preparation, and the development of procedures for work carried out near energized electrical equipment.
Applications of IEC 61472:2013
The standard is applicable where organizations need to define or verify approach distances for live working across high-voltage networks, including overhead lines, substations, and related electrical installations. It may be used by asset owners, maintenance planners, safety engineers, and technical reviewers when preparing work instructions, performing laboratory evaluation of procedures, or checking operational consistency across projects. IEC 61472:2013 is also useful in procurement and contractor qualification workflows where clear compliance references are required.
Why is IEC 61472:2013 important?
Approach-distance calculation is a practical safety control for reducing electrical hazard exposure during live work. IEC 61472:2013 supports engineering validation by providing a consistent basis for selecting distances, which can improve testing consistency, quality assurance, and technical compliance across sites and teams. It also helps organizations align internal procedures with regulatory preparation and conformity assessment expectations, especially where documented evaluation of live working methods is needed for high-voltage operations.
- Calculation framework for minimum approach distances in high-voltage a.c. live working
- Supports safe-work method development and risk reduction in energized environments
- Useful for technical review, compliance reference, and procedure validation
- Relevant to transmission, substation, and utility maintenance workflows
- Helps maintain operational consistency in engineering and contractor documentation
- Publication Date: 2013-11-04
- Standard Status: Original
- Publisher: IEC
- Edition: 3
- New Version Available: IEC 61472:2013 (2015-10-29)
- This Version: IEC 61472:2013 (2013-11-04)
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