IEC 61227-2008 PDF
Name in English:
St IEC 61227-2008
Name in Russian:
Ст IEC 61227-2008
Original standard IEC 61227-2008 in PDF full version. Additional info + preview on request
Full title and description
IEC 61227:2008 — Nuclear power plants — Control rooms — Operator controls. This international standard specifies Human‑Machine Interface (HMI) requirements for operator controls used in main control rooms of nuclear power plants, covering discrete (individual) controls, multiplexed conventional systems and soft‑control systems.
Abstract
IEC 61227:2008 identifies design principles and ergonomic requirements for operator controls in nuclear power plant main control rooms. It is intended to be used together with IEC 60964 (main control room design) and IEC 61772 (VDU/display application) and reflects advances in computer‑based control engineering since the earlier edition.
General information
- Status: International Standard (IEC publication, edition 2). Note: regional adoptions exist (see Related standards / FAQ for adoption history and regional replacements).
- Publication date: 29 April 2008.
- Publisher: International Electrotechnical Commission (IEC).
- ICS / categories: 27.120.20 — Nuclear power plants. Safety.
- Edition / version: Edition 2.0 (2008).
- Number of pages: 42 pages (IEC published bilingual EN/FR document).
Scope
The standard applies to the design of operator controls in main control rooms of nuclear power plants where the main control room is designed in accordance with IEC 60964. It covers functional types of controls (individual/discrete, multiplexed conventional and soft controls), design principles for layout and grouping, device orientation and identification, mimic diagrams and human‑factors considerations necessary to support safe and reliable operator action.
Key topics and requirements
- Definitions and classification of control types: discrete (individual) controls, multiplexed controls, soft controls (including touch‑based controls).
- Design principles for layout and grouping of controls to support situational awareness and minimise operator error.
- Requirements for device orientation, uniformity, coding/identification and labelling of actuators and indicators.
- Guidance on mimic diagrams, physical layout of control boards and location/placement of critical controls.
- Human‑factors and verification/validation alignment with related IEC/IAEA guidance documents.
Typical use and users
Primary users are control room designers, safety engineers, HMI/human‑factors specialists, plant licensing and regulatory staff, and integrators developing main control room hardware and software for nuclear power plants. The standard is used during concept, detailed design, verification and validation phases for operator controls and associated displays.
Related standards
IEC 61227:2008 is intended to be read with and supplements: IEC 60964 (Nuclear power plants — Control rooms — Design of main control room), IEC 61772 (Application of visual display units to main control rooms), IEC 61771 (Verification and validation guidance) and other IAEA/IEC documents on instrumentation and control for nuclear safety. It has been adopted regionally (for example as EN 61227:2016 in CENELEC/European adoption) and implemented identically in some national standards (for example GOST R IEC 61227‑2020).
Keywords
operator controls, control room, HMI, human‑machine interface, nuclear power plant, soft controls, discrete controls, multiplexed controls, ergonomics, control board layout, mimic diagram, IEC 61227.
FAQ
Q: What is this standard?
A: IEC 61227:2008 is an international standard that sets ergonomic and design requirements for operator controls used in the main control rooms of nuclear power plants.
Q: What does it cover?
A: It covers types of controls (individual/discrete, multiplexed conventional and soft controls), layout and grouping principles, device orientation and identification, mimic diagrams and related HMI design aspects needed to support safe operator action in nuclear control rooms.
Q: Who typically uses it?
A: Control room designers, HMI/human‑factors engineers, plant integrators, safety and licensing personnel, and regulators involved in the design, review and validation of main control room operator interfaces.
Q: Is it current or superseded?
A: IEC 61227 was published by IEC on 29 April 2008 (Edition 2). In regional practice it has been adopted and published as EN 61227:2016 (CENELEC/European adoption) and many national bodies use the EN adoption for regional compliance; some national catalogues show the IEC 2008 edition withdrawn and replaced by the EN adoption as of 2016. Additionally, some countries have produced identical or adapted national versions (for example GOST R IEC 61227‑2020). Users should check the applicable national or regulatory adoption in their country to determine which formal document is in force for compliance.
Q: Is it part of a series?
A: Yes — IEC 61227 is part of the suite of IEC documents addressing control room design and instrumentation for nuclear power plants and is intended to be used with IEC 60964 and IEC 61772 (and related IEC/IAEA I&C safety guidance).
Q: What are the key keywords?
A: Operator controls, HMI, control room, nuclear power plant, discrete controls, multiplexed controls, soft controls, ergonomics, mimic diagram.