Nuclear power plants - Control rooms - Human factors engineering

IEC TR 63214:2019 provides a summary of arguments and a technical basis for the development of a new Human Factors Engineering IEC standard and the alignment of IEC 60964. Based on the provided argumentation, the participating members will vote for such an approach. The proposed content of the new standard provides the basis for fruitful discussion within IEC SC 45A WG 8 and raises interest in the development of the new standard.
The scope of the new HFE IEC standard will follow a holistic approach towards the design of the plant-wide control rooms and all HMI, including e.g. the local control stations located throughout the plant. The general principle is to consider the complete nuclear installation design as a sociotechnical system, in a holistic and integrated way.

General Information

Status
Published
Publication Date
28-Oct-2019
Current Stage
PPUB - Publication issued
Completion Date
29-Oct-2019
Ref Project

Buy Standard

Technical report
IEC TR 63214:2019 - Nuclear power plants - Control rooms - Human factors engineering
English language
18 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (sample)

IEC TR 63214
Edition 1.0 2019-10
TECHNICAL
REPORT
Nuclear power plants – Control rooms – Human factors engineering
IEC TR 63214:2019-10(en)
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2019 IEC, Geneva, Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form

or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from

either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC

copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or

your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC

The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes

International Standards for all electrical, electronic and related technologies.
About IEC publications

The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the

latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org

The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,

variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English

committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.

and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary

details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and

once a month by email. French extracted from the Terms and Definitions clause of

IEC publications issued since 2002. Some entries have been

IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and

If you wish to give us your feedback on this publication or CISPR.
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
---------------------- Page: 2 ----------------------
IEC TR 63214
Edition 1.0 2019-10
TECHNICAL
REPORT
Nuclear power plants – Control rooms – Human factors engineering
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.120.20 ISBN 978-2-8322-7528-3

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC TR 63214:2019 © IEC 2019
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

1 Scope .............................................................................................................................. 7

2 Normative references ...................................................................................................... 7

3 Terms and definitions ...................................................................................................... 8

4 Abbreviated terms ........................................................................................................... 9

5 Identified open points in IEC 60964 concerning HFE ..................................................... 10

5.1 General ................................................................................................................. 10

5.2 Limitation of scope ................................................................................................ 10

5.3 Supplementary information ................................................................................... 10

5.4 Missing information ............................................................................................... 11

5.5 Outdated information ............................................................................................ 11

5.6 Industry needs ...................................................................................................... 12

6 Directions for the new human factors IEC standards ...................................................... 12

6.1 General ................................................................................................................. 12

6.2 Proposed "Table of contents" for a new Human Factors Engineering

standard ............................................................................................................... 13

6.3 Graphic to guide the design .................................................................................. 14

7 Impact on other IEC standards ...................................................................................... 15

7.1 General ................................................................................................................. 15

7.2 IEC 60964:2009 Control Room Design .................................................................. 15

7.3 IEC 60965 Supplementary Control Room .............................................................. 16

7.4 Series of Control Room Design IEC standards ...................................................... 16

7.5 Other IEC standards referencing IEC 60964 ......................................................... 16

8 Ongoing discussions concerning the HFE standard ....................................................... 16

8.1 General ................................................................................................................. 16

8.2 Topics to be discussed during the standard development ...................................... 16

8.3 References to be considered during the standard development ............................. 16

9 Conclusion .................................................................................................................... 17

Bibliography .......................................................................................................................... 18

Figure 1 – Human Factors Engineering Process (to be discussed) ........................................ 15

Figure 2 – New WG 8 document structure (to be discussed) ................................................. 15

---------------------- Page: 4 ----------------------
IEC TR 63214:2019 © IEC 2019 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
NUCLEAR POWER PLANTS – CONTROL ROOMS –
HUMAN FACTORS ENGINEERING
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

The main task of IEC technical committees is to prepare International Standards. However, a

technical committee may propose the publication of a technical report when it has collected

data of a different kind from that which is normally published as an International Standard, for

example "state of the art".

IEC TR 63214, which is a technical report, has been prepared by subcommittee 45A:

Instrumentation, control and electrical power systems of nuclear facilities, of IEC technical

committee 45: Nuclear instrumentation.
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
45A/1226/DTR 45A/1247A/RVDTR

Full information on the voting for the approval of this technical report can be found in the

report on voting indicated in the above table.
---------------------- Page: 5 ----------------------
– 4 – IEC TR 63214:2019 © IEC 2019

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

A bilingual version of this publication may be issued at a later date.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
---------------------- Page: 6 ----------------------
IEC TR 63214:2019 © IEC 2019 – 5 –
INTRODUCTION
a) Technical background, main issues and organisation of the Technical Report

IEC 60964: Nuclear power plants – Control rooms – Design includes a detailed set of

requirements to be applied when designing a control room and a process to implement

Human Factors Engineering. The two topics are mixed and the Human Factors part is

incomplete and does not reflect state-of-the-art knowledge and wording. In addition, the

standard was written considering only Human Factors within the scope of electrical systems in

control room design. The result is that the document does not take a holistic approach

towards the design of the plant-wide control rooms and HMI, including e.g. the local control

stations located throughout the plant.

The third edition of IEC 60964:2018 considers mainly the wording and the description of task

analyses. The authors and the IEC Committee 45A Working Group 8 identified that changing

only this aspect is already leading to a set of additional questions (e.g., concerning details of

Functional Assignment and HFE V&V) triggered by outdated or incomplete information. Based

on this, the Working Group realized that a minor change of the document does not solve all

topics in the standard. Instead, it was proposed to publish a technical report to argue and

propose a dedicated Human Factors Engineering standard, while limiting IEC 60964 to a pure

control room design standard.

In addition, the IAEA is in the process of publishing a Human Factors Guide (DS492) that

should also be reflected in IEC standardisation.

This document was developed to define the content of a future IEC HFE standard as a

conclusion of the 2017 Shanghai IEC SC45A meeting with participants from Japan, China,

Russia, Spain, France, Switzerland, and Germany.

b) Situation of the current Technical Report in the structure of the IEC SC 45A standard

series
The technical report IEC TR 63214 is a fourth level IEC SC 45A document.

This report is not proving the final standard for discussion; it is recommending an international

development of the standard, proving the needs and providing a first set of ideas. Outstanding

work has still to be conducted.

For more details on the structure of the IEC SC 45A standard series, see item d) of this

introduction.

c) Recommendations and limitations regarding the application of the Technical Report

It is important to note that a technical report is entirely informative in nature. It gathers data

collected from different origins and it establishes no requirements.

d) Description of the structure of the IEC SC45A standard series and relationships with

other IEC documents and other bodies documents (IAEA, ISO)

The top-level documents of the IEC SC45A standard series are IEC 61513 and IEC 63046.

IEC 61513 provides general requirements for I&C systems and equipment that are used to

perform functions important to safety in NPPs. IEC 63046 provides general requirements for

electrical power systems of NPPs; it covers power supply systems including the supply

systems of the I&C systems. IEC 61513 and IEC 63046 are to be considered in conjunction

and at the same level. IEC 61513 and IEC 63046 structure the IEC SC45A standard series

and shape a complete framework establishing general requirements for instrumentation,

control and electrical systems for nuclear power plants.
---------------------- Page: 7 ----------------------
– 6 – IEC TR 63214:2019 © IEC 2019

IEC 61513 and IEC 63046 refer directly to other IEC SC45A standards for general topics

related to categorization of functions and classification of systems, qualification, separation,

defence against common cause failure, control room design, electromagnetic compatibility,

cybersecurity, software and hardware aspects for programmable digital systems, coordination

of safety and security requirements and management of ageing. The standards referenced

directly at this second level should be considered together with IEC 61513 and IEC 63046 as

a consistent document set.

At a third level, IEC SC45A standards not directly referenced by IEC 61513 or by IEC 63046

are standards related to specific equipment, technical methods, or specific activities. Usually

these documents, which make reference to second-level documents for general topics, can be

used on their own.

A fourth level extending the IEC SC45 standard series, corresponds to the Technical Reports

which are not normative.

The IEC SC45A standards series consistently implements and details the safety and security

principles and basic aspects provided in the relevant IAEA safety standards and in the

relevant documents of the IAEA nuclear security series (NSS). In particular this includes the

IAEA requirements SSR-2/1, establishing safety requirements related to the design of nuclear

power plants (NPPs), the IAEA safety guide SSG-30 dealing with the safety classification of

structures, systems and components in NPPs, the IAEA safety guide SSG-39 dealing with the

design of instrumentation and control systems for NPPs, the IAEA safety guide SSG-34

dealing with the design of electrical power systems for NPPs and the implementing guide

NSS17 for computer security at nuclear facilities. The safety and security terminology and

definitions used by SC45A standards are consistent with those used by the IAEA.

IEC 61513 and IEC 63046 have adopted a presentation format similar to the basic safety

publication IEC 61508 with an overall life-cycle framework and a system life-cycle framework.

Regarding nuclear safety, IEC 61513 and IEC 63046 provide the interpretation of the general

requirements of IEC 61508-1, IEC 61508-2 and IEC 61508-4, for the nuclear application

sector. In this framework IEC 60880, IEC 62138 and IEC 62566 correspond to IEC 61508-3

for the nuclear application sector. IEC 61513 and IEC 63046 refer to ISO as well as to

IAEA GS-R part 2 and IAEA GS-G-3.1 and IAEA GS-G-3.5 for topics related to quality

assurance (QA). At level 2, regarding nuclear security, IEC 62645 is the entry document for

the IEC/SC45A security standards. It builds upon the valid high level principles and main

concepts of the generic security standards, in particular ISO/IEC 27001 and ISO/IEC 27002; it

adapts them and completes them to fit the nuclear context and coordinates with the

IEC 62443 series. At level 2, IEC 60964 is the entry document for the IEC/SC45A control

rooms standards and IEC 62342 is the entry document for the ageing management standards.

NOTE 1 It is assumed that for the design of I&C systems in NPPs that implement conventional safety functions

(e.g. to address worker safety, asset protection, chemical hazards, process energy hazards) international or

national standards would be applied.

NOTE 2 IEC/SC45A domain was extended in 2013 to cover electrical systems. In 2014 and 2015 discussions

were held in IEC/SC45A to decide how and where general requirements for the design of electrical systems were to

be considered. IEC/SC45A experts recommended that an independent standard be developed at the same level as

IEC 61513 to establish general requirements for electrical systems. Project IEC 63046 is now launched to cover

this objective. When IEC 63046 is published, this Note 2 of the introduction of IEC/SC45A standards will be

suppressed.
---------------------- Page: 8 ----------------------
IEC TR 63214:2019 © IEC 2019 – 7 –
NUCLEAR POWER PLANTS – CONTROL ROOMS –
HUMAN FACTORS ENGINEERING
1 Scope

This document provides a summary of arguments and a technical basis for the development

of a new Human Factors Engineering IEC standard and the alignment of IEC 60964. Based on

the provided argumentation, the participating members will vote for such an approach. The

proposed content of the new standard provides the basis for fruitful discussion within

IEC SC 45A WG 8 and raises interest in the development of the new standard.

The scope of the new HFE IEC standard will follow a holistic approach towards the design of

the plant-wide control rooms and all HMI, including e.g. the local control stations located

throughout the plant. The general principle is to consider the complete nuclear installation

design as a sociotechnical system, in a holistic and integrated way.
This document is organized as follows:

• Clause 5 addresses the open points that serve as a basis for the discussion about a new

Human Factors standard within IEC.

• Clause 6 proposes a basic structure for the new standard to clearly identify the scope of

this development.

• Clause 7 addresses the changes needed to existing IEC standards to be aligned with a

new Human Factors standard.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their

content constitutes requirements of this document. For dated references, only the edition

cited applies. For undated references, the latest edition of the referenced document (including

any amendments) applies.
IEC 60964:2009, Nuclear power plants- Control rooms - Design

IEC 60965, Nuclear power plants – Control rooms – Supplementary control room for reactor

shutdown without access to the main control room

IEC 61771, Nuclear power plants – Main control room – Verification and validation of design

IEC 61839, Nuclear power plants – Design of control rooms – Functional analysis and

assignments
ISO 11064 (all parts), Ergonomic design of control centres

IAEA Guide DS492 Human Factors Engineering in the Design of Nuclear Power Plants;

Status: DRAFT
---------------------- Page: 9 ----------------------
– 8 – IEC TR 63214:2019 © IEC 2019
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
function

specific purpose or objective to be accomplished, that can be specified or described without

reference to the physical means of achieving it.
[SOURCE: IEC 61226: 2009, 3.7]
3.2
functional analysis

examination of the functional goals of a system with respect to available manpower,

technology, and other resources, to provide the basis for determining how the function may be

assigned and executed
3.3
human factors engineering

engineering in which factors that could influence human performance and that could affect

safety are understood and are taken into account, especially in the design and operation of

facilities
3.4
human-machine interface

interface between operating staff and I&C system and computer systems linked with the plant.

The interface includes displays, controls, and the Operator Support System interface

3.5
job analysis

analysis identifying basic requirements which a job imposes on the control room staff

structure, the operating procedures and training programme
3.6
local control points
local control facilities

points (or facilities) located outside the control room where local operators perform control

activities
3.7
operating procedures

set of documents specifying operational tasks it is necessary to perform to achieve functional

goals
3.8
operating staff

plant personnel working on shift to operate the plant. The operating staff includes the control

room staff, maintenance engineers, etc.
---------------------- Page: 10 ----------------------
IEC TR 63214:2019 © IEC 2019 – 9 –
3.9
operator interaction

interrelation between operator and the I&C system. Specifically, display of plant status by the

I&C system and corresponding operator action
3.10
performance requirements

quantitative requirements specifying performance which ensure the achievement of functional

goals
3.11
task analysis

identification, description and evaluation of an operator’s task, in terms of its components, to

specify the detailed human activities involved, and their functional and temporal relationships

3.12
tasks
actions performed by humans for the accomplishment of a functional goal
3.13
training programme

programme which is designed to train the control room staff so that they can acquire the skills

and knowledge necessary for operational activities
3.14
validation

process of determining whether a product or service is adequate to perform its intended

function satisfactorily.

Validation is broader in scope, and may involve a greater element of judgement, than

verification
[SOURCE: IAEA Safety Glossary, 2007 edition]
3.15
verification

the process of determining whether the quality or performance of a product or service is as

stated, as intended or as required
[SOURCE: IAEA Safety Glossary, 2007 edition]
4 Abbreviated terms
EPRI Electric Power Research Institute
HED Human Engineering Discrepancies
HFE Human Factors Engineering
HMI Human Machine Interface
IAEA International Atomic Energy Agency
IEC International Electrotechnical Commission
IEEE Institute of Electrical and Electronic Engineers
ISO International Standardisation Organization
I&C Instrumentation and Control
MCR Main Control Room
NPP Nuclear Power Plant
---------------------- Page: 11 ----------------------
– 10 – IEC TR 63214:2019 © IEC 2019
NRC Nuclear Regulatory Commission
OECD Organisation for Economic Co-operation and Development
VDU Visual Display Unit
V&V Verification and Validation
WGHOF Working Group Human Organisational Factors
WG Working Group
5 Identified open points in IEC 60964 concerning HFE
5.1 General

This clause provides a set of open points within todays IEC documentation concerning the

engineering of Human Factors (HFE). The points were addressed in the comments to

IEC 60964 update 2017 and in the Shanghai IEC Meeting. The points shall provide evidence

to participating countries to vote for a new development of a Human Factors standard and a

harmonization in the related IEC documentation.
5.2 Limitation of scope

IEC 60964 is only applicable for Control Room Design, but includes (or is used for) two topics:

Control Room Design and Human Factors Engineering.

Concerning Control Room Design, IEC 60964 reflects the state-of-the-art and provides a good

set of requirements.

Concerning Human Factors Engineering (IEC 60964:2009, Clauses 7 and 9), the scope is

however limited to the Control Room and the I&C equipment installed there. The de facto

usage of the standard and users expectations manifested it as the IEC Human Factors

standard. The limited scope creates issues of insufficiency, as some state-of-the-art methods

and processes are missing.

The mix of the two topics creates confusion about the scope of Human Factors Engineering

which obviously is not limited to the Control Room and the extent of covered activities (see

following clauses).

In addition, the handling of Human Factors Engineering Programs in modernization projects

are not covered by IEC 60964: 2009, those need to be added as the methods and important

assumptions for those projects are different to new plant approaches.

Today’s IEC guidance and advice on Human Factors Engineering are limited. This creates

risks for suppliers’ and utilities’ efforts to receive approval from authorities. The latter require

a state-of-the-art HFE Program.
5.3 Supplementary information

Two clauses of IEC 60964:2009 describe the Human Factors activities of Functional Analysis

and Assignment (Clause 7) and Verification and Validation (Clause 9). These activities are

also described – in much more detail in other IEC standards (referenced below). This

information overlap creates uncertainty and doubt.

IEC 60964:2009, 7.2 and 7.3 describe processes that are in the scope of IEC 61839.

The IEC 60964:2009, 7.4, 5.5 and Clause 9 describe processes that are in the scope

of IEC 61771.
---------------------- Page: 12 ----------------------
IEC TR 63214:2019 © IEC 2019 – 11 –

In general, a dedicated Human Factors standard focusing specifically on the engineering of

HF would reduce the overlap of information and clearly assign the topic as Human Factors

activities, also applicable for other control stations. Both supplementary standards include

state-of-the-art information that could be brought into a broader context within a dedicated

standard whose wide scope ranges from Control Room Design to all human interactions

throughout the plant.
5.4 Missing information

The state-of-the-art application of Human Factors Engineering is mainly driven by

NRC’s NUREG 0711 titled “Human Factors Engineering Program Review Model” and different

national adaptions or interpretations thereof. While IEC 60964 is used as the Human Factors

standard on an IEC level, the following information is still missing and needs to be integrated.

It was thus far excluded as IEC focus was set on electrotechnical equipment only. Today, the

standard is used far outside this initial focus (see the IAEA references in their Human Factors

Guide) and needs to be revised and extended accordingly.
• Organizational and Management of a HFE Program

Highly important for a holistic approach, a proper implementation of HFE findings and

interaction with the intended user
• Operating Experience Review

Highly important lessons learned and the proven practice of keeping pros and avoiding

cons in design
• Human Reliability Analysis

Required by utilities and authorities and increasingly impacts multiple HFE program

elements, e.g. task analysis, automation, interface design, the development of operating

procedures and training, verification & validation
• Development of Operating Procedures and Training
Strongest impact on interface design
• Design Implementation
Measures to incorporate late changes
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.