Safety of thermal cutting machines (ISO 17916:2016)

This standard specifies the safety requirements and measures for machinery covering design, construction, production, transport, installation, operation, maintenance and putting out of service. This standard applies to machinery using thermal cutting processes such as oxy-fuel cutting, plasma arc cutting or laser cutting. This standard applies to machinery the basis of which is either designed as open gantry machine or the track of which is incorporated in the cutting table or in a casing. Risks arising from laser radiation, except those caused by position indicating lasers are not covered by this standard. Cutting machines that combine cutting processes are partly covered by this standard. In addition process-related standards may be applicable.

Sicherheit von Maschinen zum thermischen Trennen (ISO 17916:2016)

Diese Norm legt die Sicherheitsanforderungen und sicherheitstechnischen Maßnahmen für Maschinen hinsichtlich Konstruktion, Montage, Fertigung, Transport, Installation, Betrieb, Wartung und Außerbetriebnahme fest.
Diese Norm gilt für Maschinen, die thermische Trenn- und/oder Markierungsverfahren anwenden, z. B. Autogen- und Plasmaschneiden. Diese Norm gilt für Maschinen, die hauptsächlich entweder als Portalmaschine mit Ausleger konstruiert sind oder deren Schienen im Schneidtisch integriert sind. Diese Norm gilt für alle Maschinen, unabhängig vom Werkstück oder davon, wie das Werkstück gestützt wird.
Dieses Dokument behandelt keine Konstruktionsnormen für spezielle Anlagenteile, z. B. Normen für Sauerstoff und Brenngasschläuche, elektrische Anforderungen für Plasmaquellen. Für die meisten Anlagenteile, die beim Brennschneiden verwendet werden, sind spezielle Konstruktionsnormen vorhanden.
Risiken, die durch Schneidwerkzeuge entstehen, können in verwandten Normen behandelt sein.
Risiken durch Laserstrahlung, ausgenommen Strahlung, die durch das Ausrichten der Laserpointer verursacht wird, sind in dieser Norm nicht behandelt. Diese Risiken sind in ISO 11553 behandelt.
Maschinen, die thermische Verfahren und andere Verfahren (z. B. Schleifen, Drehen, Fräsen usw.) miteinander kombinieren sind nur teilweise enthalten. Risiken, die sich aus diesen anderen Verfahren ergeben, können in entsprechenden Normen behandelt sein.

Sécurité des machines de coupage thermique (ISO 17916:2016)

ISO 17916:2016 spécifie les prescriptions et mesures de sécurité relatives à la conception, à la construction, à la fabrication, au transport, à l'installation, à l'utilisation, à la maintenance et à la mise hors service des machines.
ISO 17916:2016 s'applique aux machines utilisant des procédés de coupage thermique et/ou de marquage, tels que l'oxycoupage, le coupage par arc de plasma. La présente Norme internationale s'applique aux machines dont la base est conçue comme une machine en porte-à-faux à portique ouvert ou dont le transporteur est incorporé à la table de coupage.
ISO 17916:2016 ne traite pas des normes de conception d'outils spécifiques, par exemple les normes relatives aux tuyaux souples d'oxygaz, les exigences électriques relatives aux générateurs de plasma. La plupart des outils utilisés sur les machines de coupage thermique ont des normes de conception spécifiques.
ISO 17916:2016 ne traite pas des équipements de découpe à main ni des équipements de découpe combinés avec un système de suivi contraint monté sur la pièce.
Les risques engendrés par les outils de coupage thermique peuvent être traités dans des normes connexes.
Les risques engendrés par le rayonnement laser, excepté ceux engendrés par les lasers indicateurs de position, ne sont pas traités dans la présente Norme internationale. Ces risques sont traités dans l'ISO 11553.
Les machines qui combinent des procédés thermiques avec d'autres procédés (par exemple meulage, forage, fraisage, etc.) ne sont que partiellement traitées dans la présente norme. Les risques engendrés par ces autres procédés peuvent être traités dans des normes connexes.

Varnost strojev za toplotno rezanje (ISO 17916:2016)

Ta standard določa varnostne zahteve in ukrepe za stroje v zvezi z zasnovo, konstrukcijo, proizvodnjo, transportom, namestitvijo, delovanjem, vzdrževanjem in prekinitvijo uporabe. Ta standard se uporablja za stroje, ki izvajajo postopke toplotnega rezanja, kot so plamensko, plazemsko in lasersko rezanje. Ta standard se uporablja za stroje, katerih podnožje je oblikovano kot stroj z odprtim portalom oziroma katerih tirnice so vključene v rezalno mizo ali ohišje. Tveganja zaradi laserskega sevanja niso zajeta v tem standardu (razen tveganja, ki jih povzročajo laserji za določanje položaja). Stroji za rezanje s kombiniranim postopkom rezanja so delno zajeti v tem standardu. Dodatno se lahko uporabljajo standardi v zvezi s postopkom.

General Information

Status
Published
Public Enquiry End Date
28-Feb-2016
Publication Date
06-Jun-2016
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
25-May-2016
Due Date
30-Jul-2016
Completion Date
07-Jun-2016

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 17916:2016
01-julij-2016
Varnost strojev za toplotno rezanje (ISO 17916:2016)
Safety of thermal cutting machines (ISO 17916:2016)
Sicherheit von Maschinen zum thermischen Trennen (ISO 17916:2016)
Sécurité des machines de coupage thermique (ISO 17916:2016)
Ta slovenski standard je istoveten z: EN ISO 17916:2016
ICS:
25.160.30 Varilna oprema Welding equipment
SIST EN ISO 17916:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 17916:2016

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SIST EN ISO 17916:2016


EN ISO 17916
EUROPEAN STANDARD

NORME EUROPÉENNE

April 2016
EUROPÄISCHE NORM
ICS 25.160.10
English Version

Safety of thermal cutting machines (ISO 17916:2016)
Sécurité des machines de coupage thermique (ISO Sicherheit von Maschinen zum thermischen Trennen
17916:2016) (ISO 17916:2016)
This European Standard was approved by CEN on 27 February 2016.

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-CENELEC 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-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17916:2016 E
worldwide for CEN national Members.

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SIST EN ISO 17916:2016
EN ISO 17916:2016 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC on machinery . 4

2

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SIST EN ISO 17916:2016
EN ISO 17916:2016 (E)
European foreword
This document (EN ISO 17916:2016) has been prepared by Technical Committee ISO/TC 44 “Welding
and allied processes” in collaboration with Technical Committee CEN/TC 121 “Welding and allied
processes” 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 October 2016, and conflicting national standards shall
be withdrawn at the latest by October 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
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 EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
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,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 17916:2016 has been approved by CEN as EN ISO 17916:2016 without any modification.
3

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SIST EN ISO 17916:2016
EN ISO 17916:2016 (E)
Annex ZA
(informative)

Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC on machinery
This European Standard has been prepared under a mandate given to CEN by the European
Commission to provide a means of conforming to Essential Requirements of the New Approach
Directive 2006/42/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 17 May 2006 on
machinery.
Once this standard is cited in the Official Journal of the European Union under that Directive and has
been implemented as a national standard in at least one Member State, compliance with the normative
clauses of this standard confers, within the limits of the scope of this standard, a presumption of
conformity with the relevant Essential Requirements of that Directive and associated EFTA regulations.
WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling
within the scope of this standard.
4

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SIST EN ISO 17916:2016
INTERNATIONAL ISO
STANDARD 17916
First edition
2016-03-15
Safety of thermal cutting machines
Sécurité des machines de coupage thermique
Reference number
ISO 17916:2016(E)
©
ISO 2016

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SIST EN ISO 17916:2016
ISO 17916:2016(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved

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SIST EN ISO 17916:2016
ISO 17916:2016(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Significant hazards . 4
5 Safety requirements and protective measures . 4
5.1 General . 4
5.2 List of safety requirements . 5
6 Information for use .15
6.1 General .15
6.2 Instruction handbook .15
6.3 Noise declaration .16
6.4 Marking .16
Annex A (informative) Examples of hazards, hazardous situations, and hazardous events .17
Annex B (informative) Calculation examples for dimensioning of exhaust systems .21
Annex C (informative) Example for the lower limit of protective devices .24
Annex D (informative) Example for calculation of the compression corresponding to the
acceptable maximum force in case of collision between the machine and a human body .25
Annex E (normative) Measurement of the air velocity at the entrance plane of the cutting table .27
Bibliography .28
© ISO 2016 – All rights reserved iii

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SIST EN ISO 17916:2016
ISO 17916:2016(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 44, Welding and allied processes, Subcommittee
SC 9, Health and safety.
Requests for official interpretations of any aspect of this International Standard should be directed to
the Secretariat of ISO/TC 44/SC 9 via your national standards body. A complete listing of these bodies
can be found at www.iso.org.
iv © ISO 2016 – All rights reserved

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SIST EN ISO 17916:2016
ISO 17916:2016(E)

Introduction
This International Standard has been created in recognition of the particular hazards that are presented
by thermal cutting machines.
This International Standard is a type-C standard as outlined in ISO 12100.
When provisions of a type-C standard are different from those which are stated in type-A or type-B
standards, the provisions of the type-C standard will take precedence over the provisions of the other
standards for machines that have been designed and built in accordance with the provisions of the
type-C standard.
The machinery concerned and the extent to which hazards, hazardous situations, and events are
covered are indicated in the Scope of this International Standard.
Hazards associated with thermal cutting machines are well recognized, but the sources of the hazards
are frequently unique to a particular thermal cutting system. The number and type(s) of hazard(s) is
(are) directly related to the nature of the thermal cutting process and the complexity of the installation.
The risks associated with these hazards vary with the type of equipment used, its purpose, and the way
in which it is installed, programmed, operated, and maintained.
This International Standard is not applicable to thermal cutting machines that were manufactured
prior to its publication date.
© ISO 2016 – All rights reserved v

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SIST EN ISO 17916:2016

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SIST EN ISO 17916:2016
INTERNATIONAL STANDARD ISO 17916:2016(E)
Safety of thermal cutting machines
1 Scope
This International Standard specifies the safety requirements and measures for machinery covering
design, construction, production, transport, installation, operation, maintenance, and putting out of
service.
This International Standard applies to machinery using thermal cutting and or marking processes such
as oxy-fuel, plasma arc. This International Standard applies to machinery the basis of which is either
designed as open gantry, cantilever machine, or the track of which is incorporated in the cutting table.
This International Standard does not cover design standards for specific tools, e.g. oxy-fuel hose
standards, electrical requirements for plasma power supplies. Most tools used on thermal cutting
machines have specific design standards.
This International Standard does not cover handheld cutting equipment and cutting equipment which
is combined with a constrained tracking system mounted on the work piece.
Risks arising from thermal cutting tools may be covered by related standards.
Risks arising from laser radiation, except those caused by position indicating lasers, are not covered by
this International Standard. Those risks are covered by ISO 11553.
Machines that combine thermal processes with other processes (e.g. grinding, drilling, milling, etc.) are
only partly covered. Risks arising from these other processes may be covered by related standards.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 3746, Acoustics — Determination of sound power levels and sound energy levels of noise sources using
sound pressure — Survey method using an enveloping measurement surface over a reflecting plane
ISO 3821, Gas welding equipment — Rubber hoses for welding, cutting and allied processes
ISO 4871, Acoustics — Declaration and verification of noise emission values of machinery and equipment
ISO 5171, Gas welding equipment — Pressure gauges used in welding, cutting and allied processes
ISO 5172, Gas welding equipment — Blowpipes for gas welding, heating and cutting — Specifications
and tests
ISO 5175, Equipment used in gas welding, cutting and allied processes — Safety devices for fuel gases and
oxygen or compressed air — General specifications, requirements and tests
ISO 7289, Gas welding equipment — Quick-action couplings with shut-off valves for welding, cutting and
allied processes
ISO 7291, Gas welding equipment — Pressure regulators for manifold systems used in welding, cutting and
allied processes up to 30 MPa (300 bar)
ISO 8207, Gas welding equipment — Specification for hose assemblies for equipment for welding, cutting
and allied processes
© ISO 2016 – All rights reserved 1

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SIST EN ISO 17916:2016
ISO 17916:2016(E)

ISO 11202, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound
pressure levels at a work station and at other specified positions applying approximate environmental
corrections
ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 13849-1, Safety of machinery — Safety-related parts of control systems — Part 1: General principles
for design
ISO 13854, Safety of machinery - Minimum gaps to avoid crushing of parts of the human body
ISO 13855, Safety of machinery — Positioning of safeguards with respect to the approach speeds of parts
of the human body
ISO 13857, Safety of machinery — Safety distances to prevent hazard zones being reached by upper and
lower limbs
1)
ISO 15012-4 , Health and safety in welding and allied processes — Equipment for capture and separation
of welding fume — Part 4: General requirements for welding fume separation equipment
ISO/TR 28821, Gas welding equipment — Hose connections for equipment for welding, cutting and allied
processes — Listing of connections which are either standardised or in common use
EN 894-1, Safety of machinery — Ergonomics requirements for the design of displays and control actuators
— General principles for human interactions with displays and control actuators
EN 894-3, Safety of machinery — Ergonomics requirements for the design of displays and control actuators
— Control actuators
IEC 60204-1:2005, Safety of machinery — Electrical equipment of machines — Part 1: General requirements
IEC 60974-1, Arc welding equipment — Part 1: Welding power sources
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
thermal cutting
cutting process that uses heat of different sources to melt or oxidize the material and a high speed jet to
remove the liquid material
3.2
tool
any component to carry out a working process
Note 1 to entry: Working processes are, for example, cutting or marking.
3.3
aggregate
unit that carries one or more tools (3.2) and which is used to position the tools relatively to each other
and/or to adjust the bevel angle of the tool(s)
3.4
cutting table
support for the work piece to be cut
3.4.1
dry cutting table
cutting table (3.4) not filled with water

1) To be published.
2 © ISO 2016 – All rights reserved

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SIST EN ISO 17916:2016
ISO 17916:2016(E)

3.4.2
water table
cutting table (3.4) filled with water
Note 1 to entry: The work piece may be placed under, on, or above the water.
3.5
exhaust unit
unit to exhaust fumes and exhaust gases generated by the cutting process
3.6
exhaust system
system including cutting table (3.4), ducting, and exhaust unit (3.5)
3.7
marking process
method for applying markings on the surface of the work piece
3.8
movement envelope
area which can be reached by a moveable part of the machine
3.9
oxy-fuel cutting
thermal cutting (3.1) process using an oxygen/fuel gas flame to heat up the material to its ignition
temperature and an oxygen jet to oxidize and remove the material
3.10
plasma cutting
thermal cutting (3.1) process using a constricted arc to heat up the material and a high velocity jet of
ionized gas to remove the molten material
3.11
positioning laser
laser pointer to indicate the exact position of the machine
3.12
section
segment
partition of the cutting table (3.4)
Note 1 to entry: Sections are used to make exhausting more efficient. Flaps in each section allow the exhaust
system to open the suction only to the currently active cutting area.
3.13
time weighted average
TWA
quantitative average which is determined from the measurement of a sample, which has been taken
over a known time interval, multiplied by the desired time interval expression, and divided by the total
time of over which the sample was obtained
Note 1 to entry: For occupational exposure, a working shift of eight hours is commonly used as the averaging
time. Values are typically expressed as a concentration of a contaminant in air, or decibels, in the case of noise
exposure.
3.14
working area
area where operation of cutting/marking tool (3.2) is intended by design and/or manufacturer’s
specifications
© ISO 2016 – All rights reserved 3

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SIST EN ISO 17916:2016
ISO 17916:2016(E)

3.15
overall stopping distance
distance travelled within the time interval between the actuation of the sensing function and the
termination of the hazardous machine function
3.16
machine environment
sphere of influence of the machine
4 Significant hazards
The listed hazards (see Table A.1) assume foreseeable access from all directions, as well as unexpected
start-up. Risks to both the operators and other persons who can have access to the danger zones are
identified, taking into account hazards that can occur under various conditions (e.g. commissioning, set-
up, production, maintenance, repair, decommissioning) during the life of the machine. The assessment
includes an analysis of the effect of failure in the control system. Following the intended use of the
machine which includes maintenance, setting and cleaning, the reasonably foreseeable misuse, the
identification of the significant hazards associated with the machine, and risks shall be evaluated.
For identification and evaluation of hazards, ISO 12100 applies.
5 Safety requirements and protective measures
5.1 General
Machines covered by this International Standard shall meet the safety requirements listed hereafter.
With regard to hazards not covered by this International Standard, these machines shall be designed in
compliance with the principles given in ISO 12100.
Machines, covered by this International Standard, shall be equipped with protective devices shown in
the Table 1, column 2.
Machines requiring access to the movement envelope during operation require protective devices against
collision with the gantry in the movement envelope. Protective devices against collision with the gantry
in the movement envelope may not be required in all situations, e.g. for machines having construction-
related short operating cycles, or a cutting table which is not suited for access due to its design.
4 © ISO 2016 – All rights reserved

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SIST EN ISO 17916:2016
ISO 17916:2016(E)

5.2 List of safety requirements
Table 1 — List of safety requirements and/or protective measures and their verification
procedures for cutting machines using thermal cutting processes
Hazard Safety requirements and/or protective measures Verification
1  Mechanical 1.1  Risk of collision between the operator and the machine while the Visual
operator is on the ground inspection,
calculation
1.1.1  Collision when the operator is unimpeded by obstacles
and
The lower limit of the protective devices shall start at ≤180 mm above the measurement
table. Otherwise, due to the variable thickness of work pieces, the lower
limit of protective devices used may be set to 50 mm or less plus the maxi-
mum thickness of the work piece specified in the machine documentation,
measured from the table. This applies to specified material thicknesses
>130 mm.
NOTE  An example is given in Annex C.

1.1.1.1  General
The following conditions shall be fulfilled in case of collision with the body:
— force, F < 150N;
— energy, E < 10 J;
2
— pressure, p < 50 N/cm .

1.1.1.2 Relative speed of the machine to the operator ≤15 m/min
The conditions described in 1.1.1.1 are met with a use of a bumper that is
able to compress at least 4 mm (e.g. working clothes wrapping the body
2
plus human tissues) and the collision area >3 cm .
NOTE  An example for a calculation is given in Annex D.
1.1.1.3  Relative speed of the machine to the operator >15 m/min
The conditions described in 1.1.1.1 shall be met using one or more of the
measures below:
a) bumpers to safely remove the operator out of the danger zone fulfilling
the conditions of 1.1.1.1;
b) bumper according to ISO 13856-3 which activates an emergency stop
according to ISO 13850. The stroke shall be greater than the overall stop-
ping distance. This bumper shall function without exceeding the condi-
tions described in 1.1.1.1. The required performance level is C according to
ISO 13849-1;
c) emergency trip wire according to ISO 13856-3 which activates an
emergency stop according to ISO 13850. The maximum prolongation of the
trip wire shall allow for the overall stopping distance, D, without adding
additional hazards to persons or other obstacles, see Figures 1 and 2.
This emergency trip wire shall function without exceeding the conditions
described in ISO 13856-3 and 1.1.1.1. The required performance level is C
according to ISO 13849-1.
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SIST EN ISO 17916:2016
ISO 17916:2016(E)

Table 1 (continued)
Hazard Safety requirements and/or protective measures Verification

A B
Key Visual
inspection,
s maximum stroke (maximum travel of the machine to trigger the
max
calculation
emergency stop function)
and
s minimum stroke (minimum travel of the machine to trigger the
min
measurement
emergency stop function)
A, B emergency trip wire
a
Focal points of an ellipsis.
Figure 1 — Emergency trip wire

a) Contact b) Triggered c) Stop
Key
1 person/obstacle (not moving)
D overall stopping distance
s stopping distance
d
s maximum stroke (maximum travel of the machine to trigger the
max
emergency stop function)
Figure 2 — Emergency trip wire function
6 © ISO 2016 – All rights reserved

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SIST EN ISO 17916:2016
ISO 17916:2016(E)

Table 1 (continued)
Hazard Safety requirements and/or protective measures Verification
d) Electro Sensitive Protective Equipment (ESPE) using Active Opto-Elec- Visual
tronic Protective Devices (AOPD) which activates an emergency stop ac- inspection,
cording to ISO 13850. The distance between the ESPE using AOPD and the calculation
hazard shall be greater than the overall stopping distance. The required and
performance level is C according to ISO 13849-1. measurement
ESPE using AOPD shall be positioned in accordance with ISO 13855 and
designed in accordance with IEC 61496-2.
NOTE  Special care shall be taken on the methodology as given in
ISO 13855, where it is possible to define variant ESPE using AOPD in type C
standards.
1.1.2  Collision when the operator is impeded by obstacles
The lower limit of the protective devices shall start at ≤180 mm above the
table. Otherwise, due to the variable thickness of work pieces, the lower
limit of protective devices used may be set to 50 mm or less plus the maxi-
mum thickness of the work piece specified in the machine documentation,
measured from the table. This applies to specified material thicknesses
>130 mm.
NOTE  An example is given in Annex C.
The conditions described in 1.1.1.1 shall be met using one or more of the
measures below:
a) ESPE using AOPD which activates an emergency stop according to
ISO 13850. The distance between the ESPE using AOPD and the hazard
shall be greater than the overall stopping distance. The required perfor-
mance level is D according to ISO 13849-1.
b) bumper which activates an emergency stop according to ISO 13850. The
stroke shall be greater than the overall stopping distance. This bumper
shall function without exceeding the conditions described in 1.1.1.1. The
required performance level is D according to ISO 13849-1.
In the case where a foreign object is present in the rail mounting fasteners
of a machine (e.g. a foot is trapped), the gantry shall have a safety device
installed to detect its presence and activate an emergency stop according
to ISO 13850. This safety device shall function without exceeding the con-
ditions described in 1.1.1.1. The required performance level is D according
to ISO 13849-1.
ESPE using
...

SLOVENSKI STANDARD
kSIST FprEN ISO 17916:2016
01-februar-2016
Varnost strojev za toplotno rezanje (ISO/FDIS 17916:2015)
Safety of thermal cutting machines (ISO/FDIS 17916:2015)
Sicherheit von Maschinen zum thermischen Trennen (ISO/FDIS 17916:2015)
Sécurité des machines de coupage thermique (ISO/FDIS 17916:2015)
Ta slovenski standard je istoveten z: FprEN ISO 17916
ICS:
25.160.30 Varilna oprema Welding equipment
kSIST FprEN ISO 17916:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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kSIST FprEN ISO 17916:2016

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kSIST FprEN ISO 17916:2016
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 17916
ISO/TC 44/SC 9
Safety of thermal cutting machines
Secretariat: BSI
Voting begins on: Sécurité des machines de coupage thermique
201511­ ­26
Voting terminates on:
2016­01 ­26
Please see the administrative notes on page iii
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/FDIS 17916:2015(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
©
NATIONAL REGULATIONS. ISO 2015

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kSIST FprEN ISO 17916:2016
ISO/FDIS 17916:2015(E)

ISO/CEN PARALLEL PROCESSING
This final draft has been developed within the International Organization for Standardization (ISO), and pro­
cessed under the ISO-lead mode of collaboration as defined in the Vienna Agreement. The final draft was
established on the basis of comments received during a parallel enquiry on the draft.
This final draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
two-month approval vote in ISO and formal vote in CEN.
Positive votes shall not be accompanied by comments.
Negative votes shall be accompanied by the relevant technical reasons.
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved

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kSIST FprEN ISO 17916:2016
ISO/FDIS 17916:2015(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Significant hazards . 4
5 Safety requirements and protective measures . 4
5.1 General . 4
5.2 List of safety requirements . 5
6 Information for use .14
6.1 General .14
6.2 Instruction handbook .14
6.3 Noise declaration .15
6.4 Marking .15
Annex A (informative) Examples of hazards, hazardous situations, and hazardous events .16
Annex B (informative) Calculation examples for dimensioning of extraction systems .20
Annex C (informative) Example for the lower limit of protective devices .23
Annex D (informative) Example for calculation of the compression corresponding to the
acceptable maximum force in case of collision between the machine and a human body .24
Annex E (normative) Measurement of the air velocity at the entrance plane of the cutting table .26
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC on machinery.27
Bibliography .28
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Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 44, Welding and allied processes, Subcommittee
SC 9, Health and safety.
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kSIST FprEN ISO 17916:2016
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Introduction
This International Standard has been created in recognition of the particular hazards that are presented
by thermal cutting machines.
This International Standard is a type-C standard as outlined in ISO 12100.
When provisions of a type-C standard are different from those which are stated in type-A or type-B
standards, the provisions of the type-C standard will take precedence over the provisions of the other
standards for machines that have been designed and built in accordance with the provisions of the
type-C standard.
The machinery concerned and the extent to which hazards, hazardous situations, and events are
covered are indicated in the Scope of this International Standard.
Hazards associated with thermal cutting machines are well recognized, but the sources of the hazards
are frequently unique to a particular thermal cutting system. The number and type(s) of hazard(s) is
(are) directly related to the nature of the thermal cutting process and the complexity of the installation.
The risks associated with these hazards vary with the type of equipment used, its purpose, and the way
in which it is installed, programmed, operated, and maintained.
This International Standard is not applicable to thermal cutting machines that were manufactured
prior to its publication date.
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kSIST FprEN ISO 17916:2016
FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 17916:2015(E)
Safety of thermal cutting machines
1 Scope
This International Standard specifies the safety requirements and measures for machinery covering
design, construction, production, transport, installation, operation, maintenance, and putting out of
service.
This International Standard applies to machinery using thermal cutting and or marking processes such
as oxy-fuel, plasma arc. This International Standard applies to machinery the basis of which is either
designed as open gantry, cantilever machine, or the track of which is incorporated in the cutting table.
This International Standard does not cover design standards for specific tools, e.g. oxy-fuel hose
standards, electrical requirements for plasma power supplies. Most tools used on thermal cutting
machines have specific design standards.
This International Standard does not cover handheld cutting equipment and cutting equipment which
is combined with a constrained tracking system mounted on the work piece.
Risks arising from thermal cutting tools may be covered by related standards.
Risks arising from laser radiation, except those caused by position indicating lasers, are not covered by
this International Standard. Those risks are covered by ISO 11553.
Machines that combine thermal processes with other processes (e.g. grinding, drilling, milling, etc.) are
only partly covered. Risks arising from these other processes may be covered by related standards.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 3746, Acoustics — Determination of sound power levels and sound energy levels of noise sources using
sound pressure — Survey method using an enveloping measurement surface over a reflecting plane
ISO 3821, Gas welding equipment — Rubber hoses for welding, cutting and allied processes
ISO 4871, Acoustics — Declaration and verification of noise emission values of machinery and equipment
ISO 5171, Gas welding equipment — Pressure gauges used in welding, cutting and allied processes
ISO 5172, Gas welding equipment — Blowpipes for gas welding, heating and cutting — Specifications and
tests
ISO 5175, Equipment used in gas welding, cutting and allied processes — Safety devices for fuel gases and
oxygen or compressed air — General specifications, requirements and tests
ISO 7289, Gas welding equipment — Quick-action couplings with shut-off valves for welding, cutting and
allied processes
ISO 7291, Gas welding equipment — Pressure regulators for manifold systems used in welding, cutting and
allied processes up to 30 MPa (300 bar)
ISO 11202, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound
pressure levels at a work station and at other specified positions applying approximate environmental
corrections
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ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 13849­ 1, Safety of machinery — Safety-related parts of control systems — Part 1: General
principles for design
ISO 13854, Safety of machinery - Minimum gaps to avoid crushing of parts of the human body
ISO 13855, Safety of machinery — Positioning of safeguards with respect to the approach speeds of parts
of the human body
ISO 13857, Safety of machinery — Safety distances to prevent hazard zones being reached by upper
and lower limbs
1)
ISO 15012-4 , Health and safety in welding and allied processes — Equipment for capture and separation
of welding fume — Part 4: General requirements for welding fume separation equipment
ISO/TR 28821, Gas welding equipment — Hose connections for equipment for welding, cutting and allied
processes — Listing of connections which are either standardised or in common use
EN 894-1, Safety of machinery — Ergonomics requirements for the design of displays and control actuators
— General principles for human interactions with displays and control actuators
EN 894-3, Safety of machinery — Ergonomics requirements for the design of displays and control actuators
— Control actuators
IEC 60204-1:2005, Safety of machinery — Electrical equipment of machines — Part 1: General requirements
IEC 60974-1, Arc welding equipment — Part 1: Welding power sources
3 Terms a nd definiti ons
For the purposes of this document, the following terms and definitions apply.
3.1
thermal cutting
cutting process that uses heat of different sources to melt or oxidize the material and a high speed jet to
remove the liquid material
3.2
tool
any component to carry out a working process
Note 1 to entry: Working processes are, for example, cutting or marking.
3.3
aggregate
unit that carries one or more tools (3.2) and which is used to position the tools relatively to each other
and/or to adjust the bevel angle of the tool(s)
3.4
cutting table
support for the work piece to be cut
3.4.1
dry cutting table
cutting table (3.4) not filled with water

1) Under development.
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3.4.2
water table
cutting table (3.4) filled with water
Note 1 to entry: The work piece may be placed under, on, or above the water.
3.5
exhaust unit
unit to exhaust fumes and exhaust gases generated by the cutting process
3.6
exhaust system
system including cutting table (3.4), ducting, and exhaust unit (3.5)
3.7
marking process
method for applying markings on the surface of the work piece
3.8
movement envelope
area which can be reached by a moveable part of the machine
3.9
oxy-fuel cutting
thermal cutting (3.1) process using an oxygen/fuel gas flame to heat up the material to its ignition
temperature and an oxygen jet to oxidize and remove the material
3.10
plasma cutting
thermal cutting (3.1) process using a constricted arc to heat up the material and a high velocity jet of
ionized gas to remove the molten material
3.11
positioning laser
laser pointer to indicate the exact position of the machine
3.12
section
segment
partition of the cutting table (3.4)
Note 1 to entry: Sections are used to make exhausting more efficient. Flaps in each section allow the exhaust
system to open the suction only to the currently active cutting area.
3.13
time weighted average
TWA
quantitative average which is determined from the measurement of a sample, which has been taken
over a known time interval, multiplied by the desired time interval expression, and divided by the total
time of over which the sample was obtained
Note 1 to entry: For occupational exposure, a working shift of eight hours is commonly used as the averaging time.
Values are typically expressed as a concentration of a contaminant in air, or decibels, in the case of noise exposure.
3.14
working area
area where operation of cutting/marking tool (3.2) is intended by design and/or manufacturer’s
specifications
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3.15
overall stopping distance
distance travelled within the time interval between the actuation of the sensing function and the
termination of the hazardous machine function
3.16
machine environment
sphere of influence of the machine
4 Sig nificant hazards
The listed hazards (see Table A.1) assume foreseeable access from all directions, as well as unexpected
start-up. Risks to both the operators and other persons who can have access to the danger zones are
identified, taking into account hazards that can occur under various conditions (e.g. commissioning, set-
up, production, maintenance, repair, decommissioning) during the life of the machine. The assessment
includes an analysis of the effect of failure in the control system. Following the intended use of the
machine which includes maintenance, setting and cleaning, the reasonably foreseeable misuse, the
identification of the significant hazards associated with the machine, and risks shall be evaluated.
For identification and evaluation of hazards, ISO 12100 applies.
5 Safety requirements and protective measures
5.1 General
Machines covered by this International Standard shall meet the safety requirements listed hereafter.
With regard to hazards not covered by this International Standard, these machines shall be designed in
compliance with the principles given in ISO 12100.
Machines, covered by this International Standard, shall be equipped with protective devices shown in
the Table 1, column 2.
Machines requiring access to the movement envelope during operation require protective devices against
collision with the gantry in the movement envelope. Protective devices against collision with the gantry
in the movement envelope may not be required in all situations, e.g. for machines having construction-
related short operating cycles, or a cutting table which is not suited for access due to its design.
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5.2 List of safety requirements
Table 1 — L i s t of s a f e t y r e qu i r ement s a nd/or pr ot e c t i ve me a s u r e s a nd t hei r ver i f ic at ion
procedures for cutting machines using thermal cutting processes
H a z ar ds Safety requirements and/or protective measures Ve r i f ic at ion
1. Mechanical 1.1. Risk of collision between the operator and the machine while the Visual
operator is on the ground inspection,
calculation
1.1.1. Collision when the operator is unimpeded by obstacles
and
measurement
The lower limit of the protective devices shall start at ≤180 mm above the
table. Otherwise, due to the variable thickness of work pieces, the lower
limit of protective devices used may be set to 50 mm or less plus the maxi­
mum thickness of the work piece specified in the machine documentation,
measured from the table. This applies to specified material thicknesses
>130 mm.
NOTE  An example is given in Annex C.

1.1.1.1. General
The following conditions shall be fulfilled in case of collision with the body:
— force, F < 150N;
— energy, E < 10 J;
2
— pressure, p < 50 N/cm .

1 .1 .1 . 2 . R e l at i ve s p e e d of t he m ac h i ne t o t he op e r at or ≤15 m/m i n
The conditions described in 1.1.1.1 are met with a use of a bumper that is
able to compress at least 4 mm (e.g. working clothes wrapping the body
2
plus human tissues) and the collision area >3 cm .
NOTE  An example for a calculation is given in Annex D.
1.1.1.3. Relative speed of the machine to the operator >15 m/min
The conditions described in 1.1.1.1 shall be met using one or more of the
measures below:
a) bumpers to safely remove the operator out of the danger zone fulfilling
the conditions of 1.1.1.1;
b) bumper according to ISO 13856-3 which activates an emergency stop
according to ISO 13850. The stroke shall be greater than the overall stop­
ping distance. This bumper shall function without exceeding the condi­
tions described in 1.1.1.1. The required performance level is C according to
ISO 13849-1;
c) emergency trip wire according to ISO 13856-3 which activates an
emergency stop according to ISO 13850. The maximum prolongation of the
trip wire shall allow for the overall stopping distance, D, without adding
additional hazards to persons or other obstacles, see Figures 1 and 2.
This emergency trip wire shall function without exceeding the conditions
described in ISO 13856-3 and 1.1.1.1. The required performance level is C
according to ISO 13849-1.
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Table 1 (continued)
H a z ar ds Safety requirements and/or protective measures Ve r i f ic at ion

A B
Key Visual
inspection,
s maximum stroke (maximum travel of the machine to trigger the emer­
max
calculation
gency stop function)
and
s minimum stroke (minimum travel of the machine to trigger the emer­ measurement
min
gency stop function)
A, B emergency trip wire
a
Focal points of an ellipsis.
Figure 1 — Emergency trip wire

a) Contact b) Triggered c) Stop
Key
1 person/obstacle (not moving)
D overall stopping distance
s stopping distance
d
s maximum stroke (maximum travel of the machine to trigger the emer­
max
gency stop function)
Figure 2 — Emergency trip wire function
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kSIST FprEN ISO 17916:2016
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Table 1 (continued)
H a z ar ds Safety requirements and/or protective measures Ve r i f ic at ion
d) Electro Sensitive Protective Equipment (ESPE) using Active Opto-Elec­ Visual
tronic Protective Devices (AOPD) which activates an emergency stop inspection,
according to ISO 13850. The distance between the ESPE using AOPD and calculation
the hazard shall be greater than the overall stopping distance. The required and
performance level is C according to ISO 13849-1. measurement
ESPE using AOPD shall be positioned in accordance with ISO 13855 and
designed in accordance with IEC 61496-2.
NOTE  Special care shall be taken on the methodology as given in
ISO 13855, where it is possible to define variant ESPE using AOPD in type C
standards.
1.1.2. Collision when the operator is impeded by obstacles
The lower limit of the protective devices shall start at ≤180 mm above the
table. Otherwise, due to the variable thickness of work pieces, the lower
limit of protective devices used may be set to 50 mm or less plus the maxi­
mum thickness of the work piece specified in the machine documentation,
measured from the table. This applies to specified material thicknesses
>130 mm.
NOTE  An example is given in Annex C.
The conditions described in 1.1.1.1 shall be met using one or more of the
measures below:
a) ESPE using AOPD which activates an emergency stop according to
ISO 13850. The distance between the ESPE using AOPD and the hazard shall
be greater than the overall stopping distance. The required performance
level is D according to ISO 13849-1.
b) bumper which activates an emergency stop according to ISO 13850. The
stroke shall be greater than the overall stopping distance. This bumper
shall function without exceeding the conditions described in 1.1.1.1. The
required performance level is D according to ISO 13849-1.
In the case where a foreign object is present in the rail mounting fasteners
of a machine (e.g. a foot is trapped), the gantry shall have a safety device
installed to detect its presence and activate an emergency stop according
to ISO 13850. This safety device shall function without exceeding the condi­
tions described in 1.1.1.1. The required performance level is D according to
ISO 13849-1.
ESPE using AOPD shall be positioned in accordance with ISO 13855:2010,
5.2, with the parameter K to be equal to the maximum positioning speed of
the machine’s fastest axis and parameter C set to 0 mm.
NOTE  The parameter K, being equal to the maximum positioning speed of
the machine’s fastest axis, is due to the fact that people themselves are not
moving towards the gantry.
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Table 1 (continued)
H a z ar ds Safety requirements and/or protective measures Ve r i f ic at ion
1.2. Risk while stepping/standing on the cutting table Visual
inspection
To avoid falling while stepping on the table, e.g. for marking and picking up
parts, an adequate ascent support shall be available.
To avoid injuries while walking on the table, safe walking areas shall be
(temporarily) installable, e.g. plates.
This does not apply to tables which are not able to carry a person. In this
case, signs on the machine and the safety instructions in the manual shall
point out not to step on the table.
Additional requirements for while the machine is in operation
The conditions described in 1.1.1.1 shall be met using some of the measures
below:
— bumper which activates an emergency stop according to ISO 13850. The
stroke shall be greater than the overall stopping distance. This bumper
shall function without exceeding the conditions described in 1.1.1.1. The
required performance level is D according to ISO 13849-1.
— ESPE using AOPD which activates an emergency stop according to
ISO 13850. The distance between the ESPE using AOPD and the hazard shall
be greater than the overall stopping distance. The required performance
level is D according to ISO 13849-1.
1.3. Outside the machine Measurement
Visual
Protections against unauthorized persons are required.
inspection
NOTE  There could be specific national regulations in force dealing with
this topic.
The safety area to the outer machine movement envelope shall be installed
according to ISO 13854 and ISO 13857.
This safety area shall be defined in the manufacturer’s instructions.
For safety devices outside the machine, the required performance level is D
according to ISO 13849-1.
EXAMPLE  Possible safety devices are ESPE using AOPD, active bumpers,
trip wires, fences, safety (shut-off) mats, etc.
To allow the operator sufficient access to the machine in normal operation,
a clearance of 500 mm from the machine movement envelope shall be kept
free of obstructions. Due to the fact that the hazards are easily recogniza­
ble, a presence detection system for this clearance area is not required.
If the safety area as designed by the manufacturer cannot be realized
around the movement envelope due to site specific restraints, then the
requirements specified in 1.1 shall be met.
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Table 1 (continued)
H a z ar ds Safety requirements and/or protective measures Ve r i f ic at ion
1.4. Suspension of safety functions Measurement
Functional test
1.4.1 General
Movements of the machine/aggregates are only allowed as long as the pro­
tective devices, according to 1.1, are in position or activated.
If for reasons of maintenance, service, or setting protective devices are dis­
abled, machine movements are allowed as given in 1.4.2 and 1.4.3. Disabling
of the protective devices shall only be possible by using a lockable selector.
1.4.2 Speeds up to 6 m/min
Speeds ≤6m/min during service, maintenance, or setting are permitted in
connection with at least one of the following devices:
— a hold to run control device in accordance with IEC 60204-1:2005, 9.2.4;
— an electronic hand wheel.
Rotating aggregates (e.g. ro
...

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