EN 848-3:2007+A2:2009

SLOVENSKI STANDARD
01-december-2009
9DUQRVWOHVQRREGHORYDOQLKVWURMHY5H]NDOQLNL]YUWLOQLPRURGMHP]DHQRVWUDQVNR
REGHODYRGHO1XPHULþQRNUPLOMHQL1&YUWDOQLLQUH]NDOQLVWURML
Safety of woodworking machines - One side moulding machines with rotating tools - Part
3: Numerically controlled (NC) boring and routing machines
Sicherheit von Holzbearbeitungsmaschinen - Fräsmaschinen für einseitige Bearbeitung
mit drehendem Werkzeug - Teil 3: NC-Bohr- und Fräsmaschinen
Sécurité des machines pour le travail du bois - Machines à fraiser sur une face à outil
rotatif - Partie 3: Perceuses et défonceuses à commande numérique
Ta slovenski standard je istoveten z: EN 848-3:2007+A2:2009
ICS:
25.040.20 âWHYLOþQRNUPLOMHQLVWURML Numerically controlled
machines
79.120.10 Lesnoobdelovalni stroji Woodworking machines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 848-3:2007+A2
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2009
ICS 79.120.10 Supersedes EN 848-3:2007
English Version
Safety of woodworking machines - One side moulding machines
with rotating tools - Part 3: Numerically controlled (NC) boring
and routing machines
Sécurité des machines pour le travail du bois - Machines à Sicherheit von Holzbearbeitungsmaschinen -
fraiser sur une face à outil rotatif - Partie 3: Perceuses et Fräsmaschinen für einseitige Bearbeitung mit drehendem
défonceuses à commande numérique Werkzeug - Teil 3: NC-Bohr- und Fräsmaschinen
This European Standard was approved by CEN on 17 February 2007 and includes Amendment 1 approved by CEN on 30 July 2009 and
Amendment 2 approved by CEN on 24 August 2009.

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 848-3:2007+A2:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .4
Introduction .5
1 Scope .6
2 Normative references .6
3 Terms and definitions .9
3.1 General .9
3.2 Definitions .9
4 List of significant hazards . 17
5 Safety requirements and/or measures . 20
5.1 General . 20
5.2 Controls . 21
5.2.1 Safety and reliability of control systems . 21
5.2.2 Position of controls . 22
5.2.3 Starting . 23
5.2.4 Normal stopping . 23
5.2.5 Emergency stop . 24
5.2.6 Operational stop . 25
5.2.7 Mode selection switch . 25
5.2.8 Speed monitoring and control . 27
5.2.9 Interlocking of guards, protective devices, movements and functions. 29
5.2.10 Failure of the power supply . 29
5.2.11 Failure of the control circuits . 30
5.3 Protection against mechanical hazards . 30
5.3.1 Stability . 30
5.3.2 Risk of break-up during operation . 30
5.3.3 Tool holder . 30
5.3.4 Braking tool spindle . 31
5.3.5 Devices to minimise the risk of ejection . 32
5.3.6 Workpiece supports and guides . 32
5.3.7 Prevention of access to moving parts and devices to minimise the effect of ejection . 32
5.3.8 Clamping device . 43
5.4 Protection against non mechanical hazards . 45
5.4.1 Fire . 45
5.4.2 Noise . 45
5.4.3 Emission of chips and dust . 46
5.4.4 Electricity . 46
5.4.5 Ergonomics and handling . 47
5.4.6 Lighting . 47
5.4.7 Pneumatics . 47
5.4.8 Hydraulics . 47
5.4.9 Static electricity . 48
5.4.10 Electromagnetic compatibility . 48
5.4.11 Lasers . 48
5.4.12 Unintended movements . 48
5.4.13 Supply disconnecting devices . 48
5.4.14 Maintenance . 49
6 Information for use . 49
6.1 Warning devices . 49
6.2 Marking . 49
6.3 Instruction handbook . 50
Annex A (informative) Use of well tried components . 55
Annex B (normative) Operating conditions for noise measurement. 56
B.1 General . 56
B.2 Operating conditions for routing units of NC routing machines and NC combined
boring/routing machines . 56
B.2.1 General . 56
B.2.2 Noise measurements . 57
B.2.3 General data sheet . 59
B.3 Operating conditions for boring units of NC boring machines and NC combined
boring/routing machines . 61
B.3.1 General . 61
B.3.2 Noise measurements . 62
B.3.3 General data sheet . 64
Annex C (normative) Curtains on NC routing and NC combined boring and routing machines –
Impact test method . 67
C.1 General . 67
C.2 Test method . 67
C.2.1 Preliminary remarks . 67
C.2.2 Testing equipment . 67
C.2.3 Test procedure . 68
C.3 Results . 71
C.4 Assessment . 71
C.5 Test report . 71
Annex D (informative) #Example of a test equipment for impact test$ . 72
Annex E (normative) Braking tests . 73
E.1 Conditions for brake tests . 73
E.2 Tests . 73
E.2.1 Un-braked run-down time . 73
E.2.2 Braked run-down time . 73
Annex F (normative) Use of electronic components . 75
F.1 General . 75
F.2 SRECS . 75
F.2.1 Components, hardware . 75
F.2.2 Safety related software . 76
F.2.3 Validation. 76
Annex G (normative) #Rigid guards on NC routing machines – Impact test method . 78
G.1 General . 78
G.2 Test method . 78
G.2.1 Preliminary remarks . 78
G.2.2 Testing equipment . 78
G.2.3 Test procedure . 79
G.3 Results . 79
G.4 Assessment . 80
G.5 Test report$ . 80
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 98/37/EC . 81
Annex ZB (informative) !Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC" . 84
Bibliography . 88

Foreword
This document (EN 848-3:2007+A2:2009) has been prepared by Technical Committee CEN/TC 142
“Woodworking machines - Safety”, the secretariat of which is held by UNI.
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 March 2010, and conflicting national standards shall be withdrawn at
the latest by March 2010.
This document includes Amendment 1, approved by CEN on 2009-07-30 and Amendment 2, approved by
CEN on 2009-08-24.
This document supersedes !EN 848-3:2007".
The start and finish of text introduced or altered by amendment is indicated in the text by tags ! "
and # $.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of the !Machinery Directives".
!For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this
document."
Organisations contributing to the preparation of this European Standard include the European Manufacturers
Association "EUMABOIS".
The European Standards produced by CEN/TC 142 are particular to woodworking machines and compliment
the relevant A and B standards on the subject of general safety (see introduction of EN ISO 12100-1:2003 for
a description of A, B and C standards).
!EN 848 Safety of woodworking machines — One side moulding machines with rotating tool consists of the
following parts:
Part 1: Single spindle vertical moulding machines
Part 2: Single spindle hand fed/integrated fed routing machines
Part 3: Numerically controlled (NC) boring and routing machines"
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.

Introduction
This document has been prepared to be a harmonised standard to provide one means of conforming to the
essential health and safety requirements of the Machinery Directive and associated EFTA Regulations.
This document is a type C standard as defined in EN ISO 12100-1:2003.
The machinery concerned and the extent to which hazards, hazardous situations and events covered are
indicated in the scope of this document.
When provisions of this type C standard are different from those which are stated in type A or B standards, the
provisions of this type C standard take precedence over the provisions of other standards, for machines that
have been designed and built according to the provisions of this type C standard.
The requirements of this document are directed to manufacturers and their authorised representatives of
numerically controlled (NC) boring machines and routing machines. It is also useful for designers.
This also includes examples of information to be provided by the manufacturer to the user.
Common requirements for tooling are given in EN 847-1:2005 and EN 847-2:2001.
1 Scope
This document !specifies all" significant hazards, hazardous situations and events as listed in Clause 4,
which are relevant to NC boring machines, NC routing machines and NC combined boring/routing machines
(as defined in 3.2.1) herein after referred to as "machines" designed to cut solid wood, chip board, fibreboard,
plywood and also these materials where these are covered with plastic laminate or edgings when they are
used as intended and under the conditions foreseen by the manufacturer.
This document also applies to machines fitted with:
a) additional equipment for sawing, sanding and edge banding;
b) fixed or movable workpiece support;
c) mechanical, pneumatic, hydraulic or vacuum workpiece clamping;
d) automatic tool change facilities.
This document does not deal with the specific hazards of edge banding equipment fitted to NC boring
machines, NC routing machines and NC combined boring/routing machines.
This document is only applicable to NC boring machines, NC routing machines and NC combined
boring/routing machines which are designed to use milling tools with a cutting circle diameter below 16 mm or
milling tools or saw-blades conforming to EN 847-1:2005 and EN 847-2:2001 and boring tools or sanding
wheels.
This document is not applicable to NC boring machines, NC routing machines and NC combined
boring/routing machines which are designed to use grinding wheels.
This document is not applicable to single spindle hand fed/integrated fed routing machines.
NOTE Single spindle hand fed/integrated fed routing machines are dealt with in EN 848-2:2007.
This document does not deal with the specific hazards of ejection through curtains on machines with feeding
openings of which the distance between the workpiece support and the lower part of the partial enclosure in
the direction of the feed exceeds 400 mm.
This document is not applicable to NC boring machines, NC routing machines and NC combined
boring/routing machines which are manufactured before the date of its publication as EN.
2 Normative references
The following referenced documents are indispensable for the application 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.
!deleted text"
EN 847-1:2005, Tools for woodworking — Safety requirements — Part 1: Milling tools, circular saw blades
EN 847-2:2001, Tools for woodworking — Safety requirements — Part 2: Requirements for the shank of
shank mounted milling tools
EN 894-1:1997, Safety of machinery — Ergonomics requirements for the design of displays and control
actuators — Part 1: General principles for human interactions with displays and control actuators
EN 894-2:1997, Safety of machinery — Ergonomics requirements for the design of displays and control
actuators — Part 2: Displays
EN 894-3:2000, Safety of machinery — Ergonomics requirements for the design of displays and control
actuators — Part 3: Control actuators
EN 982:1996, Safety of machinery — Safety requirements for fluid power systems and their components —
Hydraulics
EN 983:1996, Safety of machinery — Safety requirements for fluid power systems and their components —
Pneumatics
EN 1005-1:2001, Safety of machinery — Human physical performance — Part 1: Terms and definitions
EN 1005-2:2003, Safety of machinery — Human physical performance — Part 2: Manual handling of
machinery and component parts of machinery
EN 1005-3:2002, Safety of machinery — Human physical performance — Part 3: Recommended force limits
for machinery operation
EN 1005-4:2005, Safety of machinery — Human physical performance — Part 4: Evaluation of working
postures and movements in relation to machinery
EN 1037:1995, Safety of machinery — Prevention of unexpected start-up
EN 1088:1995, Safety of machinery — Interlocking devices associated with guards — Principles for design
and selection
EN 1760-1:1997, Safety of machinery — Pressure sensitive protective devices — Part 1: General principles
for the design and testing of pressure sensitive mats and pressure sensitive floors
EN 1760-3:2004, Safety of machinery — Pressure sensitive protective devices — Part 3: General principles
for the design and testing of pressure sensing bumpers, plates, wires and similar devices
EN 1837:1999, Safety of machinery — Integral lighting of machines
EN 50178:1997, Electronic equipment for use in power installations
EN 50370-1:2005, Electromagnetic compatibility (EMC) — Product family standard for machine tools — Part
1: Emission
EN 50370-2:2003, Electromagnetic compatibility (EMC) — Product family standard for machine tools — Part
2: Immunity
EN 60204-1:2006, Safety of machinery — Electrical equipment of machines — Part 1: General requirements
(IEC 60204-1:2005, modified)
EN 60439-1:1999, Low-voltage switchgear and controlgear assemblies — Part 1: Type-tested and partially
type-tested assemblies (IEC 60439-1:1999)
EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)
!EN 60825-1:2007", Safety of laser products — Part 1: Equipment classification, requirements and user's
guide !(IEC 60825-1:2007)"
EN 61496-1:2004, Safety of machinery — Electro-sensitive protective equipment — Part 1: General
requirements and tests (IEC 61496-1:2004, modified)
CLC/TS 61496-2:2006, Safety of machinery — Electro-sensitive protective equipment — Part 2: Particular
requirements for equipment using active opto-electronic protective devices (AOPDs) (IEC 61496-2:2006)
EN 61508-3:2001, Functional safety of electrical/electronic/programmable electronic safety related systems —
Part 3: Software requirements (IEC 61508-3:1998 + Corrigendum 1999)
EN ISO 3743-1:1995, Acoustics — Determination of sound power levels of noise sources — Engineering
methods for small, moveable sources in reverberant fields — Part 1: Comparison method for hard-walled test
rooms (ISO 3743-1:1994)
EN ISO 3743-2:1996, Acoustics — Determination of sound power levels of noise sources using sound
pressure — Engineering methods for small, moveable sources in reverberant fields — Part 2: Methods for
special reverberation test rooms (ISO 3743-2:1994)
EN ISO 3744:1995, Acoustics — Determination of sound power levels of noise sources using sound pressure
— Engineering method in an essentially free field over a reflecting plane (ISO 3744:1994)
EN ISO 3745:2003, Acoustics — Determination of sound power levels of noise sources using sound pressure
— Precision methods for anechoic and semi-anechoic rooms (ISO 3745:2003)
EN ISO 3746:1995, Acoustics — Determination of sound power levels of noise sources using sound pressure
— Survey method using an enveloping measurement surface over a reflecting plane (ISO 3746:1995)
EN ISO 4871:1996, Acoustics — Declaration and verification of noise emission values of machinery and
equipment (ISO 4871:1996)
EN ISO 9614-1:1995, Acoustics — Determination of sound power levels of noise sources using sound
intensity — Part 1: Measurement at discrete points (ISO 9614-1:1993
EN ISO 11202:1995/AC:1997, Acoustics — Noise emitted by machinery and equipment — Measurement of
emission sound pressure levels at a workstation and at other specified positions — Survey method in situ
(ISO 11202:1995)
EN ISO 11204:1995:AC:1997, Acoustics — Noise emitted by machinery and equipment — Measurement of
emission sound pressure levels at a workstation and at other specified positions — Method requiring
environmental corrections (ISO 11204:1995)
EN ISO 11688-1:1998/AC:1998, Acoustics — Recommended practice for the design of low-noise machinery
and equipment — Part 1: Planning (ISO/TR 11688-1:1995)
EN ISO 12100-1:2003, 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 13849-1:2008$, Safety of machinery — Safety-related parts of controls systems — Part 1:
General principles for design (ISO 13849-1:2006)
#EN ISO 13849-2:2008$, Safety of machinery — Safety-related parts of controls systems — Part 2:
Validation (ISO 13849-2:2003)
EN ISO 13850:2006, Safety of machinery — Emergency stop — Principles for design (ISO 13850:2006)
!EN ISO 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by
upper and lower limbs (ISO 13857:2008)"
3 Terms and definitions
3.1 General
For the purposes of this document, the terms and definitions given in EN ISO 12100-1:2003 and the following
apply.
3.2 Definitions
3.2.1
Numerically Controlled (NC) boring and routing machines
integrated fed machines designed for the machining of workpieces by the use of milling and/or boring tools.
These machines have at least two square axes programmable by the user (e.g. X, Y) for positioning and/or
machining. The axes operate in accordance with a NC work programme
NOTE The machine can have:
a) additional equipment for sawing or sanding;
b) additional equipment for edge banding;
c) fixed or movable workpiece support;
d) mechanical, pneumatic, hydraulic or vacuum workpiece clamping;
e) automatic tool change facilities.
Examples of different machine design are illustrated in Figures 1 to 9.

Safeguarding devices are not illustrated
Figure 1 — Example 1 of a C frame machine (fixed table, moveable head)

Safeguarding devices are not illustrated
Figure 2 — Example 2 of a portal frame machine (fixed portal, fixed table moving head)

Safeguarding devices are not illustrated

Figure 3 — Example 3 of an overhead router (moving table)

Safeguarding devices are not illustrated
Figure 4 — Example 4 of an overhead router (moving tables, fixed portal, and moving heads)
Safeguarding devices are not illustrated
Figure 5 — Example 5 of a machining centre (moving table, fixed portal, moving head)

Safeguarding devices are not illustrated

Figure 6 — Example 6 of an overhead router (fixed table, moving portal, moving head)
Safeguarding devices are not illustrated
Figure 7 — Example 7 of a C frame boring machine (moving tables, fixed portal, moving heads)

Safeguarding devices are not illustrated
Figure 8 — Example 8 of a portal frame boring machine (moving tables, fixed portal, moving heads)
Safeguarding devices are not illustrated
Figure 9 — Example 9 of a vertical machine (moving support, fixed frame, moving heads)
3.2.2
boring tools
tools intended/designed for feed only along/parallel their axis of rotation
3.2.3
sanding wheel
tool where the active part is made of coated abrasive
3.2.4
grinding wheel
tool where the active part is made of bounded abrasive
3.2.5
speed range
range between the lowest and the highest rotational speed for which the tool spindle or tool is designed to
operate
3.2.6
ejection
uncontrolled movement of the workpiece or parts of it or part of the tool from the machine during processing
3.2.7
machine actuator
power mechanism used to effect motion of the machine
3.2.8
machining mode of operation
automatic, programmed, sequential operation of the machine with the facility for manual or automatic
loading/unloading of workpieces
3.2.9
machine setting mode of operation
setting, programming, fault finding, program verification, testing and manually controlled (under power) non-
sequential operation of the machine
3.2.10
information of the supplier
statements, sales literature, leaflets or other documents where a manufacturer (supplier) declares either the
compliance of the characteristics of e.g. a material or product or the conformity of a material or a product to a
relevant standard
3.2.11
Numerical Control (NC) Computerised Numerical Control (CNC)
automatic control of a process by a device that makes use of numerical data introduced while the process is in
progress
3.2.12
complete enclosure
combination of fixed and moveable guards which when closed completely encloses the machine preventing
access to it as well may form a means to safeguard against ejected parts (e.g. wood dust and chips)
3.2.13
partial enclosure
combination of fixed and moveable guards, safety devices and curtains which encloses the defined machine
danger zone. It may or may not have apertures or a ceiling
3.2.14
peripheral enclosure
combination of fixed and moveable guards which encloses the machine danger zone preventing access to it
and also forms a means of safeguarding against ejected parts (e.g. wood dust and chips). It may or may not
have a ceiling
3.2.15
integrated feed on NC boring and routing machines
feed mechanism for the workpiece support or tool which is integrated with the machine and where the
workpiece support or machine element with incorporated tool are held and controlled mechanically during the
machining operation
3.2.16
operational stop
control through which the machine can be brought to a safe stop but where the energy supply to the machine
actuators need not be cut off when the machine or the dangerous parts of it, are stopped
3.2.17
bumper
pressure sensitive protective device (see EN 1760-3:2004 and 3.2.27) comprising:
a) sensor(s) which generate(s) a signal when pressure is applied to part of its outer surface, where:
1) the cross section throughout the pressure sensitive area may be regular or irregular;
2) the sensor is intended to detect a person or a part of his body (head, arm leg etc.) when entering the
protected zone;
b) where necessary a control unit, which responds to the signal from the sensor and generates output
signal(s) to the control system of the machine
NOTE For some bumpers the sensors generate directly the output signal(s).
3.2.18
safety related PLC
programmable logic controller dedicated to safety related application designed in the required category
according to #EN ISO 13849-1:2008$
3.2.19
safety related electrical control system (SRECS)
electrical part of a control system whose failure can result in a immediate increase of the risk(s) (3.2.4 of
EN 62061:2005)
3.2.20
embedded software
software that is part of the system supplied by the manufacturer that is not normally accessible for
modification
NOTE 1 Firmware or system software are examples of embedded software (see 3.2.47 of EN 62061:2005).
NOTE 2 Manufacturer means manufacturer of the system.
NOTE 3 For example the operating system of a speed monitoring device.
3.2.21
application software
software specific to the application that is specifically implemented by the designer of the SRECS generally
containing logic sequences, limits and expressions that control the appropriate inputs, outputs, calculations
and decisions necessary to meet SRECS functional requirements (see 3.2.46 of EN 62061:2005)
#NOTE For example the SRECS program that is part of the program to run a machine.$
3.2.22
redundancy
application of more than one device or system, or part of a device or a system, with the objective of ensuring
that, in the event of one failing to perform its function, another is available to perform that function (see 3.44 of
EN 60204-1:2006 and 4.12.3 of EN ISO 12100-2:2003)
3.2.23
monitoring
safety function which ensures that a safety measure is initiated if the ability of a component or an element to
perform its function is diminished, or if the process conditions are changed in such a way that hazards are
generated
3.2.24
un-braked run-down time
time elapsed from the actuation of the stop control, but not the braking device (if fitted) up to spindle standstill
3.2.25
braked run-down time
time elapsed from the actuation of the stop control and the brake device up to spindle standstill
3.2.26
electro-sensitive protective equipment (ESPE)
non-mechanically actuated assembly of devices and/or components working together for protective tripping or
presence-sensing purposes comprising as a minimum:
 a sensing function;
 a control / monitoring function;
 one or more output signal switching device(s).
Safety related control systems associated with the ESPE or the ESPE itself may include a secondary
switching device, muting functions, stopping performance monitor, start interlock, re-start interlock etc.
NOTE Examples are light beam, capacitive, active infra-red, ultra-sonic and image monitoring equipment.
3.2.27
pressure sensitive protective equipment (PSPE)
mechanically actuated assembly of devices and/or components working together for protective tripping or
presence-sensing purposes comprising as a minimum:
 one or more sensing elements;
 a control unit;
 one or more output signal switching device(s).
Safety related control system associated with the PSPE or the PSPE itself can further include a secondary
switching device, start interlock, re-start interlock etc.
NOTE Examples are pressure sensitive edges, pressure sensitive floors, pressure sensitive mats and pressure
sensitive bars.
4 List of significant hazards
This clause !contains all" significant hazards, hazardous situations and events (see EN 1050:1996), as
far as they are dealt with in this document, identified by risk assessment as significant for the machines as
defined in the scope and which require action to eliminate or reduce the risk. This document deals with these
significant hazards by defining safety requirements and/or measures or by reference to relevant standards:
These hazards are listed in Table 1 in accordance with Annex A of EN 1050:1996.
Table 1 — List of significant hazards
No Hazards, hazardous situations and Relevant
hazardous events clauses of
this
EN ISO 12100
document
Part 1:2003 Part 2:2003
1 Mechanical hazards related to machine parts or workpiece due to:
a) shape  5.3.7, 5.3.8,
5.4.5
b) relative location 5.2.2, 5.2.3,
4.2 4.2.1, 4.2.2,
5.2.5, 5.3.7
c) mass and stability (potential energy 5.2.10,
of elements which may move under the 5.3.3, 5.4.5,
effect of gravity) 5.4.12
d) mass and velocity (kinetic energy of 5.2.7, 5.3.7,
elements in controlled or uncontrolled 5.3.8
motion)
e) mechanical strength 5.3.7.5,
Annex C
- accumulation of energy inside the machinery:
f) liquids or gases under pressure, or 4.2 4.10, 5.5.4
5.2.10, 5.4.7,
5.4.8, 5.4.13
g) vacuum 5.3.8
1.1 Crushing hazard 4.2.1 5.3.4,
5.3.7.2, 6.3
1.2 Shearing hazard
5.3.7.2
1.3 Cutting or severing hazard
5.3.7.1.1,
5.3.7.1.2,
5.3.7.2
1.4 Entanglement hazard 5.3.3, 5.3.7
1.5 Drawing in or trapping hazard 5.3.7
1.6 Impact hazard 5.3.5
1.7 Stabbing or puncture hazard 5.3.7.2
1.8 Friction or abrasion hazard 5.3.7
1.9 High pressure fluid injection or ejection !4.10" 5.3.8
hazard
2 Electrical hazards
2.1 Contact of persons with live parts 4.3 4.9, 5.5.4 5.4.4
(direct contact)
2.2 Contact of persons with parts which 4.3 4.9 5.4.4
have become live under faulty
conditions (indirect contact)
(to be continued)
Table 1 — List of significant hazards (continued)
No Hazards, hazardous situations and Relevant
hazardous events clauses of
this
EN ISO 12100
document
Part 1:2003 Part 2:2003
4 Hazards generated by noise, resulting in:
4.1 Hearing loss (deafness), other 4.5 4.2.2, 5 5.4.2
physiological disorders (loss of balance,
loss or awareness)
4.2 Interference with speech 5.4.2
communication, acoustic signals
6 Hazards generated by radiation
6.1 4.7 5.4.10
Low frequency, radio frequency radiation,
micro waves
6.5 Lasers 4.7 5.4.11
7 Hazards generated by materials and substances (and their constituent elements)
processed, or used by the machinery:
7.1 Hazards from contact with or inhalation 4.8 4.3b, 4.4 5.4.3
of harmful fluids and dusts
7.2 Fire hazard 4.8 4.4 5.4.1, 5.4.9
8 Hazards generated by neglecting ergonomic principles in machine design:
8.1 Unhealthy postures or excessive efforts 4.9 4.7, 4.8.2, 5.2.2
4.11.2,
5.5.5, 5.5.6
8.2 Hand-arm or foot-leg anatomy 4.9 4.8.3 5.4.5
8.4 Local lighting 4.8.6 5.4.6, 6.3
8.5 Mental overload and underload, stress 4.9 4.8.5 5.4.5
8.6 Human error 4.9 4.8.1, 5.2.7, 6.3
4.11.8,
4.11.10,
5.5.2, 6
8.7 Design, location or identification of 4.8.7, 4.11.8 5.2.2
manual controls
8.8 Design or location of visual display units 4.8.2, 6.2 5.2.2
9 Hazard combination 4.11 5.2.7
(to be continued)
Table 1 — List of significant hazards (concluded)
No Hazards, hazardous situations and Relevant
hazardous events clauses of
EN ISO 12100 this
document
Part 1:2003 Part 2:2003
10 Unexpected start-up, unexpected overrun/overspeed (or any similar malfunction) from
10.1 Failure/ disorder of the control system 4.11, 5.5.4 5.2.8, 5.2.11
10.2 Uncontrolled restoration of energy 4.11.4 5.2.10
supply after an interruption
10.3 External influences on electrical 4.11.11 5.4.4,
equipment Annex F
10.5 errors in the software 4.9 4.11.7 Annex F
11 5.2.4, 5.2.5,
Impossibility of stopping the machine in 4.11.1,
5.4.13
the best possible conditions 4.11.3, 5.5.2
12 Variations in the rotational speed of 4.2.2, 4.3 5.2.8
tools
13 Failure of the power supply 4.11, 4.11.4 5.2.10
14 Failure of the control circuit 4.11, 5.5.4 5.2.11,
Annex F
15 Errors of fitti
...