Safety of machinery - Ergonomic design principles - Part 1: Terminology and general principles

This European Standard establishes the ergonomic principles to be followed during the process of design of machinery.
This European Standard applies to the interactions between operators and machinery when installing, operating, adjusting, maintaining, cleaning, dismantling, repairing or transporting equipment, and outlines the principles to be followed in taking the health, safety and well-being of the operator into account. This European Standard provides a framework within which the range of more specific ergonomics standards and other related standards relevant to machinery design should be applied.
The ergonomic principles given in this European Standard apply to all ranges of human abilities and characteristics to ensure safety, health and well-being and overall system performance. Information will need to be interpreted to suit the intended use.
NOTE   Although the principles in this European Standard are orientated towards machinery for occupational use, they are also applicable to equipment and machinery for private use.

Sicherheit von Maschinen - Ergonomische Gestaltungsgrundsätze - Teil 1: Begriffe und allgemeine Leitsätze

Sécurité des machines - Principes ergonomiques de conception - Partie 1: Terminologie et principes généraux

La présente Norme européenne donne les principes ergonomiques à suivre pendant le processus de conception des
machines.
La présente Norme européenne s’applique à l’interaction entre l’opérateur et la machine lors des opérations
d’installation, utilisation, réglage, maintenance, nettoyage, démontage, réparation ou transport dudit équipement et
énonce les principes à suivre pour prendre en compte la santé, la sécurité et le bien-être de l’opérateur. La présente
Norme européenne fournit un cadre dans lequel il convient d'appliquer les normes d'ergonomie plus spécifiques et
autres normes associées traitant de la conception des machines.
Les principes ergonomiques donnés dans la présente Norme européenne s’appliquent à toute l’étendue des
capacités et caractéristiques humaines, afin d'assurer la sécurité, la santé et le bien-être de l'opérateur,
ainsi qu'une bonne efficacité globale du système. Les informations nécessiteront une interprétation pour convenir
à l’usage envisagé.
NOTE Même si les principes de la présente Norme européenne sont destinés aux machines à usage professionnel, ils sont
également applicables aux équipements et machines à usage privé.

Varnost strojev - Načela ergonomskega načrtovanja - 1. del: Terminologija in splošna načela

General Information

Status
Published
Publication Date
10-Feb-2009
Current Stage
9093 - Decision to confirm - Review Enquiry
Due Date
15-Sep-2016
Completion Date
17-Oct-2016

RELATIONS

Buy Standard

Standard
EN 614-1:2006+A1:2009
English language
25 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 614-1:2006+A1:2009
01-april-2009
9DUQRVWVWURMHY1DþHODHUJRQRPVNHJDQDþUWRYDQMDGHO7HUPLQRORJLMDLQ
VSORãQDQDþHOD

Safety of machinery - Ergonomic design principles - Part 1: Terminology and general

principles

Sicherheit von Maschinen - Ergonomische Gestaltungsgrundsätze - Teil 1: Begriffe und

allgemeine Leitsätze

Sécurité des machines - Principes ergonomiques de conception - Partie 1: Terminologie

et principes généraux
Ta slovenski standard je istoveten z: EN 614-1:2006+A1:2009
ICS:
13.110 Varnost strojev Safety of machinery
13.180 Ergonomija Ergonomics
SIST EN 614-1:2006+A1:2009 en,fr

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 614-1:2006+A1:2009
---------------------- Page: 2 ----------------------
SIST EN 614-1:2006+A1:2009
EUROPEAN STANDARD
EN 614-1:2006+A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2009
ICS 13.110; 13.180
English Version
Safety of machinery - Ergonomic design principles - Part 1:
Terminology and general principles

Sécurité des machines - Principes ergonomiques de Sicherheit von Maschinen - Ergonomische

conception - Partie 1: Terminologie et principes généraux Gestaltungsgrundsätze - Teil 1: Begriffe und allgemeine

Leitsätze
This European Standard was approved by CEN on 13 December 2008.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European

Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national

standards may be obtained on application to the CEN Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the

official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,

Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 614-1:2006+A1:2009: E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 614-1:2006+A1:2009
EN 614-1:2006+A1:2009 (E)
Contents Page

Foreword ..............................................................................................................................................................3

Introduction .........................................................................................................................................................4

1 Scope ......................................................................................................................................................5

2 Normative references ............................................................................................................................6

3 Terms and definitions ...........................................................................................................................6

4 General principles..................................................................................................................................9

4.1 General ....................................................................................................................................................9

4.2 Accessible design for people with special requirements .................................................................9

4.3 Taking account of people's body dimensions, postures, body movements, and physical

strength ................................................................................................................................................ 10

4.4 Taking account of people's mental abilities .................................................................................... 13

4.5 Taking account of the influence of the physical work environment on people ........................... 14

5 Incorporating ergonomic principles into the design process of machinery ................................ 15

5.1 General ................................................................................................................................................. 15

5.2 Ergonomics tasks to be performed during the design process of machinery ............................ 16

Annex A (informative) Guidelines for the use of the 3-zone rating system .............................................. 20

A.1 Introduction ......................................................................................................................................... 20

A.2 Definition and use of the 3-zone rating system ............................................................................... 20

Annex ZA (informative) Relationship between this European Standard and the Essential

Requirements of EU Directive 98/37/EC, amended by 98/79/EC .................................................... 22

Annex ZB (informative) !!!!Relationship between this European Standard and the Essential

Requirements of EU Directive 2006/42/EC"" .................................................................................. 23

Bibliography ..................................................................................................................................................... 24

---------------------- Page: 4 ----------------------
SIST EN 614-1:2006+A1:2009
EN 614-1:2006+A1:2009 (E)
Foreword

This document (EN 614-1:2006+A1:2009) has been prepared by Technical Committee CEN/TC 122

“Ergonomics”, the secretariat of which is held by DIN.

This European Standard shall be given the status of a national standard, either by publication of an identical

text or by endorsement, at the latest by July 2009, and conflicting national standards shall be withdrawn at the

latest by December 2009.
This document includes Amendment 1, approved by CEN on 2008-12-13.
This European Standard supersedes !EN 614-1:2006".

The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ".

This European Standard has been prepared under a mandate given to CEN by the European Commission

and the European Free Trade Association, and supports essential requirements of EC Directive(s).

!For relationship with EC Directive(s), see informative Annexes ZA and ZB, which are integral parts of this

European Standard.

EN 614 consists of the following Parts, under the general title Safety of machinery – Ergonomic design

principles:
− Part 1: Terminology and general principles
− Part 2: Interactions between the design of machinery and work tasks."

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following

countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech

Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,

Sweden, Switzerland and United Kingdom.
---------------------- Page: 5 ----------------------
SIST EN 614-1:2006+A1:2009
EN 614-1:2006+A1:2009 (E)
Introduction

Ergonomically designed work systems enhance safety, improve human working and living conditions and

counteract adverse effects on human health. Also they usually improve the operator-machine system

performance and reliability. In this European Standard the term "ergonomics" refers to a multidisciplinary field

of science and its application. Applying ergonomics to the design of work systems, especially where the

design of machinery is concerned, ensures that human capabilities, skills, limitations and needs are taken into

account.

The work system includes operators, job design, work equipment (e.g. machinery), work space, work

environment, work process and the interactions between them. It can vary in complexity from a workshop with

a single operator using hand held equipment to a process plant and its operators. Good design takes into

account how the operator is expected to interact with the work equipment and how the work equipment fits

into the system as a whole. This is particularly important the more the work equipment is interdependent on

other components of the system. In its whole complexity, the working system is described in generic

standards (e.g. EN ISO 6385).

Compliance with harmonised standards prepared by CEN/CENELEC enables manufacturers and suppliers to

meet requirements of European legislation. EN ISO 12100-1 and EN ISO 12100-2 contain the concepts and

general principles to guide designers in achieving safety for machinery for occupational and private purposes.

Ergonomic principles can be incorporated into the design process by following this standard. In this way both

the technical design and ergonomic principles are considered at the same time. The aim to enhance the

health, safety and well-being of workers is reached by systematically minimising the risks according to !EN

ISO 12100". EN 13861 provides information concerning applicable ergonomic B-type standards related to

specific hazards.

This standard is one of the European Standards covering specific topics identified in EN ISO 12100-1 and EN

ISO 12100-2 as important to the safety of machinery.
---------------------- Page: 6 ----------------------
SIST EN 614-1:2006+A1:2009
EN 614-1:2006+A1:2009 (E)
1 Scope

This European Standard establishes the ergonomic principles to be followed during the process of design of

machinery.

This European Standard applies to the interactions between operators and machinery when installing,

operating, adjusting, maintaining, cleaning, dismantling, repairing or transporting equipment, and outlines the

principles to be followed in taking the health, safety and well-being of the operator into account. This

European Standard provides a framework within which the range of more specific ergonomics standards and

other related standards relevant to machinery design should be applied.

The ergonomic principles given in this European Standard apply to all ranges of human abilities and

characteristics to ensure safety, health and well-being and overall system performance. Information will need

to be interpreted to suit the intended use.

NOTE Although the principles in this European Standard are orientated towards machinery for occupational use, they

are also applicable to equipment and machinery for private use.
---------------------- Page: 7 ----------------------
SIST EN 614-1:2006+A1:2009
EN 614-1:2006+A1:2009 (E)
2 Normative references

The following referenced documents are indispensable for the application of this European Standard. For

dated references, only the edition cited applies. For undated references, the latest edition of the referenced

document (including any amendments) applies.

EN 894-3, Safety of machinery — Ergonomics requirements for the design of displays and control actuators

— Part 3: Control actuators
!deleted text"

EN ISO 12100-1, Safety of machinery — Basic concepts, general principles for design — Part 1: Basic

terminology, methodology (ISO 12100-1:2003)

EN ISO 12100-2:2003, Safety of machinery — Basic concepts, general principles for design — Part 2:

Technical principles (ISO 12100-2:2003)

!EN ISO 14121-1, Safety of machinery – Risk assessment – Part 1: Principles (ISO 14121-1:2007)"

3 Terms and definitions

For the purposes of this European Standard, the following terms and definitions apply.

3.1
allocation of functions

process of deciding how system functions shall be implemented, by humans, by equipment and/or hardware

and/or software
[EN ISO 6385:2004, 2.1]
3.2
design population

designated group of workers delimited as a percentile range of the general population, defined according to

relevant characteristics, e.g. gender, age, skill level, etc.
[EN ISO 6385:2004, 2.2]
3.3
ergonomics
study of human factors

scientific discipline concerned with the understanding of interactions among human and other elements of a

system, and the profession that applies theory, principles, data and methods to design in order to optimize

human well-being and overall system performance
[EN ISO 6385:2004, 2.3]
3.4
job

organization and sequence in time and space of an individual's work tasks or the combination of all human

performance by one worker within a work system
[EN ISO 6385:2004, 2.4]
3.5
system function
broad category of activity performed by a system
---------------------- Page: 8 ----------------------
SIST EN 614-1:2006+A1:2009
EN 614-1:2006+A1:2009 (E)
[EN ISO 6385:2004, 2.5]
3.6
well-being

condition perceived by the operator when using the machine as intended by reducing discomfort, fatigue and

psychological stress to the minimum possible due to ergonomic principles
NOTE Well-being is a part of good health according to the WHO.
3.7
work environment

physical, chemical, biological, organizational, social and cultural factors surrounding a worker

[EN ISO 6385:2004, 2.6]
3.8
work equipment

tools, including hardware and software, machines, vehicles, devices, furniture, installations and other

components used in the work system
[EN ISO 6385:2004, 2.7]
3.9
operator
worker

person or persons given the task of installing, operating, adjusting, maintaining, cleaning, repairing or

transporting, machinery
[EU Directive 98/37/EC, Annex 1, 1.1.1, 3 subclause]
3.10
work fatigue

mental or physical, local or general non-pathological manifestation of excessive strain, completely reversible

with rest
[EN ISO 6385:2004, 2.9]
3.11
work organization

sequence and interaction of work systems fitted together to produce a specific result

[EN ISO 6385:2004, 2.10]
3.12
work process

sequence in time and space of the interaction of workers, work equipment, materials, energy and information

within a work system
[EN ISO 6385:2004, 2.11]
3.13
workstation

combination and spatial arrangement of work equipment, surrounded by the work environment under the

conditions imposed by the work tasks
[EN ISO 6385:2004, 2.12]
---------------------- Page: 9 ----------------------
SIST EN 614-1:2006+A1:2009
EN 614-1:2006+A1:2009 (E)
3.14
work strain

internal response of the worker to being exposed to work stress depending on his/her individual

characteristics (e.g. size, age, capacities, abilities, skills, etc.)
[EN ISO 6385:2004, 2.13]
3.15
work stress
external load

sum of those external conditions and demands in the work system which act to disturb a person's

physiological and/or psychological state
[EN ISO 6385:2004, 2.14]
3.16
workspace

volume allocated to one or more persons in the work system to complete the work task

[EN ISO 6385:2004, 2.15]
3.17
work system

system comprising one or more workers and work equipment acting together to perform the system function,

in the workspace, in the work environment, under the conditions imposed by the work tasks

[EN ISO 6385:2004, 2.16]
3.18
work task

activity or set of activities required by the worker to achieve an intended outcome

[EN ISO 6385:2004, 2.17]
3.19
accessible design

design focussed on principles of extending standard design to people with some type of performance

limitation to maximize the number of potential customers who can readily use a product, building or service

which may be achieved by

- designing products, services and environments that are readily usable by most users without any

modification,

- by making products or services adaptable to different users (adapting user interfaces), and

- by having standardized interfaces to be compatible with special products for persons with disabilities.

NOTE 1 Terms such as design for all, barrier-free design, inclusive design and transgenerational design are used

similarly but in different contexts.

NOTE 2 Accessible design is a subset of universal design where products and environments are usable by all people,

to the greatest extent possible, without the need for adaptation or specialised design.

[CEN/CENELEC Guide 6, 3.2]
---------------------- Page: 10 ----------------------
SIST EN 614-1:2006+A1:2009
EN 614-1:2006+A1:2009 (E)
4 General principles
4.1 General

Safety of machinery requires that ergonomic aspects are addressed. !Risk reduction by inherently safe

design measures is required by EN ISO 12100 which includes the need to follow ergonomic principles."

This European Standard describes these ergonomic principles and gives a framework for incorporating them

into the design process.

The observance of ergonomic principles applies to the intended use of machinery including its installation,

adjustment, maintenance, cleaning, repair, dismantling and transport.

The objective is to design the machinery in its context with the work system to be consistent with human

capabilities, limitations and needs. This requires an analysis of the work tasks that operators have to carry out

and the effect of any constraints that the design and its influence to the environment (e.g. noise, vibration) is

likely to have on the operators' health, safety and well-being.

Machinery shall be designed to take account of the variability in operators' characteristics. These include:

 body dimensions (see 4.3.2),
 posture (see 4.3.3),
 body movements (see 4.3.4),
 physical strength (see 4.3.5),
 mental abilities (see 4.4).

The effects of the combination of factors (for example the combined effects of frequency, body postures and

movements, the duration of operation and the total work duration) have to be taken into account.

The physical work environment will have an effect on the operator. This should be taken into account by

avoiding impairing effects and promoting facilitating effects as far as possible (see 4.5).

All elements of the operator-machine-system such as displays, signals and control actuators shall be

designed in such a way that clear and unambiguous interaction between the operator and the machine is

possible.

In particular, maintenance operators shall be taken into account because they may have to access specific

areas in which risk to health are particularly high.

Consideration of the above aspects allows the designer to identify and evaluate ergonomics related risk

factors and to ensure that the machinery design incorporates means for adequately controlling them. This will

improve health, safety, well-being and reliability of the operation and hence reduce the probability of errors at

all stages of machinery use.
4.2 Accessible design for people with special requirements

Where it is required, the designer should take account of people with special requirements and apply

ergonomic principles to accessible design and assistive technology in order to enable the use of machinery by

people with special requirements.

NOTE Special needs includes sensory abilities like vision, tactile and acoustic input, physical abilities like dexterity,

manipulation, movement, voice, strength and endurance, cognitive abilities like intellect, memory, language and literacy

and allergies like contact allergy and respiratory allergy. For further see CEN/CENELEC Guide 6.

---------------------- Page: 11 ----------------------
SIST EN 614-1:2006+A1:2009
EN 614-1:2006+A1:2009 (E)

4.3 Taking account of people's body dimensions, postures, body movements, and physical

strength
4.3.1 General

People’s ability to safely use machinery is very much dependent on their proportional and geometric

relationship to it. Information on population body dimensions allows the designer to take account of the

ergonomic relevant design of a machine (e.g. ensuring adequate reach or sufficient clearance for the

operator).
4.3.2 Body dimensions

Machinery shall be designed with proper regard to the body dimensions of the expected population of

operators, taking into account:

 body dimensions (both static and dynamic with appropriate clothing and/or personal protective

equipment) of adults and people with special needs,
 ranges of body dimensions and joint movements,
 safety distances, and

 dimensions for access (for use, installation, adjustment, maintenance, cleaning, repair, removal

and transport).

To help to avoid stressful postures and movements, the dimensions of machinery need to be compatible with

those of the operator. This can require providing facilities so that each operator can optimize his working

positions. The following principles shall be taken into account:

a) working height or other functional dimensions of machinery shall fit the operator and the type of work

being performed, for example by being adjustable;

b) type, location and adjustability of any seating provided shall be appropriate by considering the dimensions

of the operator, and to the tasks the operator performs;

c) sufficient space shall be provided for all the body parts, to allow the task to be performed with good

working postures and movements and to facilitate access and changes in posture;

d) handles and pedals of machinery shall suit the functional anatomy of the hand or foot and the dimensions

of the operator population. For hand held equipment, handles shall be designed to ensure that the

operator is able to grip the equipment correctly by adopting good postures and to perform the expected

movements;

e) frequently used control actuators, grips and pedals shall be placed within easy reach of the hands and/or

feet when the operator is in appropriate operating positions. Other important control actuators, e.g.

emergency stops, shall be within easy reach of the operator, whereas less frequently used control

actuators shall merely be within reach.
th th

When designing machinery to conform to the expected operator population, at least the 5 to 95 percentiles

shall be used. Where health and safety aspects are important, wider percentile ranges shall be used,

st th

according to the risk assessment, at least to the 1 and/or 99 percentiles. Since machinery is designed for

use by both men and women, the relevant percentiles of the combined operator population shall be used.

When determining clearance (e.g. leg room), 95 or greater percentile values shall be used. For reach (e.g.

operator reach), 5 or lower percentile values shall be used. Where the dimensions of machinery are

th th
adjustable, the range available shall cover the 5 to the 95 percentile.
---------------------- Page: 12 ----------------------
SIST EN 614-1:2006+A1:2009
EN 614-1:2006+A1:2009 (E)

NOTE EN 547-1, EN 547-2 and EN ISO 14738 provide fuller information on using anthropometric data for workspace

design, EN ISO 15537 gives information on methods for assessing dimensions using test persons.

EN ISO 15536-1 gives information on computer manikins and body templates which can be used for assessing designs.

Also see EN ISO 3411 and EN ISO 6682 provide information for minimum space envelope and operating zone for comfort

and reach.
4.3.3 Postures

Working postures shall be comfortable as far as possible and such that they promote easy working

movements and do not have any injurious effects on the individual.

In the design of machinery, the following principles shall be taken into account:

a) awkward postures, e.g. twisted, bent or inclined postures in prolonged activities leading to body fatigue

shall be avoided. Changes in posture shall be promoted;

b) machinery should enable occasional alterations in the operators working position between sitting and

standing. Sitting shall generally be preferred to standing as a main working position;

c) need for lying, kneeling and squatting positions should be restricted as far as possible (even in

maintenance work);

d) suitable body posture and appropriate support for the body shall be ensured. Supports shall be

dimensioned and positioned in order to avoid unbalanced postures;

e) force requirements shall be consistent with the body posture available. Technical aids shall be provided to

achieve sufficient leverage and prevent physical overload. To satisfy this requirement for hand-held

equipment, it is important that risky or unsuitable changes in grip during use are avoided by correct

positioning of the handles;

f) design of the working area at the machine should take into account the following factors:

 viewing angles,
 viewing distances,
 ease of visual discrimination,
 duration and frequency of task,

 any special limitation of the user group, e.g. wearing multifocal spectacles, and

 restrictions caused when wearing personal protective equipment (PPE).

NOTE EN ISO 14738 describes ergonomic principles for deriving dimensions of workstations. EN 1005-4 gives

guidance on assessing and controlling health risks due to machinery related postures and movements. EN ISO 6682

describes zones of comfort and reach for controls for earth-moving machinery.
4.3.4 Body movements

Machinery shall be designed with regard to the work process to allow the body or parts of the body to move in

accordance with their natural paths and rhythms of motion. In particular it should be considered that the

operator is not required to make very frequent movements involving extreme joint angles, over a prolonged

period of time.

In the design of machinery, the following principles shall be taken into account:

a) machinery shall allow sufficient freedom of movement (to avoid static postures);

---------------------- Page: 13 ----------------------
SIST EN 614-1:2006+A1:2009
EN 614-1:2006+A1:2009 (E)

b) machinery shall be designed so that repetitive body movements that may lead to impairment, illness or

injury are avoided;

c) where there is an occasional need for working outside the normal arm reach the workstation shall allow

the body to bend forward or sideways; to reduce risk it should be possible for the worker to lean and

support their weight;

d) movements requiring high precision and accuracy shall require low force for their execution (see also

4.4);

e) where aids (such as hoists, rails, stops, jigs etc. to avoid excessive muscle activity) are needed the work

space shall have adequate dimensions to allow the movements necessary to use these aids;

f) twisting movements or extreme joint positions of the hand/arm involving the application of forces shall be

avoided.

NOTE EN ISO 14738 describes ergonomic principles for deriving dimensions of workstations. EN 1005-4 gives

guidance on assessing and controlling health risks due to machinery related postures and movements.

4.3.5 Physical strength

Actions during machinery operation which require the application of high force can cause strain to the

musculo-skeletal system. Unfavourable musculo-skeletal strain increases the risk of fatigue, discomfort and

musculo-skeletal disorders.

In the design of machinery, the following principles shall be taken into account:

a) mechanical aids shall be provided, where the necessary physical force to be applied cannot be kept to a

safe level;

b) prolonged static muscle tension (such as caused by arms and hands being held or lifted) shall be avoided.

The weight of hand-held equipment may be an important cause of muscle fatigue when prolonged

periods of use are required and its effects should be reduced, e.g. by supporting the equipment on a

suspension system;

c) application of physical force shall be minimised wherever possible by utilising measures such as balance

weights;

d) control actuators, grips, handles and pedals of machinery shall be designed, selected and arranged to

meet the requirements of EN 894-3;

e) depending on the force demands, size, shape and position of control actuators, uneven loading of the

body and limbs shall be avoided;

f) weight distribution of hand held and portable equipment shall ensure proper balance in relation to their

handles and support areas.

NOTE EN 1005-2 and EN 1005-3 describe how the designer of machinery can keep the required forces to

acceptable levels. They give methods for considering the weight, shape, size, weight distribution and position of the

objects being handled. The duration and frequency of force application, the operator’s posture (sitting or standing), the

rules and methods of working and the specific characteristics of the intended operator population (e.g. age, health) are

also addressed.
---------------------- Page: 14 ----------------------
SIST EN 614-1:2006+A1:2009
EN 614-1:2006+A1:2009 (E)
4.4 Taking account of people's mental abilities
4.4.1 General

The machine and its associated elements (displays, signals, control actuators, instructions etc.) shall be

designed to suit not only the physical but also the mental abilities of the expected population of operators. The

term mental in this sense refers to cognitive, informational and emotional processes of the human being, as

specified in EN ISO 10075–1. Mental ability is associated with the operator’s ability to control the machinery

and perform the required tasks.

NOTE Poor compatibility between the operator’s mental abilities and the requirements for use results in unsafe

operation and leads to impairing effects on the operator’s health and we
...

Questions, Comments and Discussion

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