SIST EN 15093:2022
(Main)Safety of machinery - Safety requirements for hot flat rolling mills
Safety of machinery - Safety requirements for hot flat rolling mills
This document specifies the general safety requirements for hot rolling mills for flat products as defined in 3.1.
This document is applicable to: Plant (machinery, equipment, devices according Annex D) used for the manufacturing of metal hot rolled flat products from the material supply from entry (1), via the mill stands (2) with roll changing devices (6), to the exit (5) (see Figure 1).
Figure 1....
This standard does not cover:
- thermo process equipment, e.g. in accordance with the EN 746 series;
- continuous casting machines according to EN 14753;
- hook conveyors according to EN 619;
- non-fixed load lifting attachments, e.g. according to EN 13155;
- roll shop equipment;
- storage equipment (e.g. high-bay warehouses);
- cranes, fork lifts, trucks and railway trucks and other vehicles;
- process technology (e.g. treatment of water, rolling lubricant, compressed air, etc.);
- separate cleaning system for exhaust air;
- firefighting system.
NOTE 1 Special requirements for protection of persons in case of using asphyxiant gases used in firefighting system is covered by this document (see Annex C).
This document deals with significant hazards, hazardous situations or hazardous events relevant to hot rolling mills for flat products, when it is used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer. It provides the requirements to be met by the manufacturer to ensure the safety of persons and property during transport, commissioning, operation and de-commissioning, as well as in the event of foreseeable failures or malfunctions that can occur in the equipment.
NOTE 2 For modernization, this document (C-type standard) can be applied for the part to be modernized.
Sicherheit von Maschinen - Sicherheitsanforderungen an Warmflachwalzwerke
Dieses Dokument spezifiziert die allgemeinen Sicherheitsanforderungen von Warmwalzwerken für Flachprodukte wie in 3.1. beschrieben.
Sécurité des machines - Prescriptions de sécurité relatives aux laminoirs à chaud pour produits plats
Le présent document spécifie les prescriptions générales de sécurité pour les laminoirs à chaud pour produits plats, comme défini en 3.1.
Le présent document s'applique aux : installations (machines, équipements, dispositifs selon l'Annexe D) utilisées pour la fabrication de produits métalliques plats laminés à chaud depuis le poste d'alimentation en matière à l'entrée (1) jusqu'à la sortie (5) vers le stockage, en passant par les cages de laminoir (2) et les dispositifs de changement de cylindre (6) (voir Figure 1).
...
Figure 1 - Exemple de disposition générale d'un laminoir à chaud
La présente norme ne s'applique pas aux :
- équipements de traitement thermique, par exemple, conformément à la série EN 746 ;
- machines de coulée continue conformément au prEN 14753 ;
- convoyeurs à crochets conformément à l'EN 619 ;
- équipements amovibles de prise de charge, par exemple conformément à l'EN 13155 ;
- équipements de l'atelier des trains de laminoirs ;
- équipements de stockage (par exemple, entrepôts de stockage en hauteur) ;
- grues, chariots élévateurs, camions, wagons de marchandises et autres véhicules ;
- technologies de traitement (par exemple, traitement de l'eau, lubrifiant de laminage, air comprimé, etc.) ;
- systèmes de nettoyage séparé pour l'air d'échappement ;
- systèmes de lutte contre l'incendie.
NOTE 1 Les exigences particulières en matière de protection des personnes en cas d'utilisation de gaz asphyxiants utilisés dans les systèmes de lutte contre l'incendie sont couvertes par le présent document (voir Annexe C).
Le présent document traite les phénomènes dangereux, situations dangereuses ou événements dangereux significatifs qui sont pertinents pour les laminoirs à chaud pour produits plats, lorsqu'ils sont utilisés normalement et dans les conditions de mauvais usage raisonnablement prévisibles par le fabricant. Il fournit les exigences que doit respecter le fabricant pour assurer la sécurité des personnes et des biens pendant le transport, la mise en service, l'exploitation et la mise hors service, ainsi qu'en cas de défaillances ou de dysfonctionnements prévisibles qui peuvent survenir sur l'équipement.
NOTE 2 Pour la modernisation, il est recommandé d'appliquer le présent document (norme de type C) pour la partie à moderniser.
Varnost strojev - Varnostne zahteve za valjarne (vroče valjanje)
Ta dokument določa splošne varnostne zahteve za valjarne za vroče valjanje ploščatih izdelkov, kot je opredeljeno v točki 3.1.
Ta dokument se uporablja za: – obrate (stroje, opremo, naprave v skladu z dodatkom D) za proizvodnjo vroče valjanih kovinskih ploščatih izdelkov od vstopa materiala (1) prek valjalnih strojev (2) z napravami za zamenjavo zvitkov (6) do izstopa (5) (glej sliko 1).
Slika 1 ...
Ta standard ne zajema:
– opreme za toplotno obdelavo, npr. v skladu s skupino standardov EN 746;
– strojev za zvezno litje jekla v skladu s standardom EN 14753;
– transporterjev s kljukami v skladu s standardom EN 619;
– snemljivih dvigalnih sredstev, npr. v skladu s standardom EN 13155;
– vrtljive opreme za obrate;
– opreme za shranjevanje (npr. visokoregalna skladišča);
– žerjavov, viličarjev, tovornjakov in železniških vagonov ter drugih vozil;
– tehnologije procesov (npr. čiščenje vode, maziva za valjalne stroje, stisnjen zrak itd.);
– ločenega sistema za čiščenje odvedenega zraka;
– sistema za gašenje požarov.
OPOMBA 1: Posebne zahteve glede zaščite oseb v primeru uporabe zadušljivih plinov iz sistema za gašenje požarov so zajete v tem dokumentu (glej dodatek C).
Ta dokument obravnava večja tveganja, nevarne situacije ali nevarne dogodke v zvezi z valjarnami za vroče valjanje ploščatih izdelkov, kadar se uporabljajo v skladu s predvidenim namenom in pod pogoji pričakovane nepravilne uporabe, ki jih določa proizvajalec. Podaja zahteve, ki jih mora izpolnjevati proizvajalec za zagotovitev varnosti oseb in premoženja med prevozom, usposabljanjem za zagon, obratovanjem in prenehanjem obratovanja ter v primeru predvidljivih okvar ali napak, do katerih lahko pride pri opremi.
OPOMBA 2: Pri modernizaciji je mogoče ta dokument (standard tipa C) uporabiti za del, ki bo moderniziran.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 15093:2022
01-maj-2022
Nadomešča:
SIST EN 15093:2008
Varnost strojev - Varnostne zahteve za valjarne (vroče valjanje)
Safety of machinery - Safety requirements for hot flat rolling mills
Sicherheit von Maschinen - Sicherheitsanforderungen an Warmflachwalzwerke
Sécurité des machines - Prescriptions de sécurité relatives aux laminoirs à chaud pour
produits plats
Ta slovenski standard je istoveten z: EN 15093:2022
ICS:
13.110 Varnost strojev Safety of machinery
25.120.20 Valjalni stroji, stroji za Rolling, extruding and
vbrizgovanje in vlečni stroji drawing equipment
SIST EN 15093:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 15093:2022
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SIST EN 15093:2022
EN 15093
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2022
EUROPÄISCHE NORM
ICS 77.180 Supersedes EN 15093:2008
English Version
Safety of machinery - Safety requirements for hot flat
rolling mills
Sécurité des machines - Prescriptions de sécurité Sicherheit von Maschinen - Sicherheitsanforderungen
relatives aux laminoirs à chaud pour produits plats an Warmflachwalzwerke
This European Standard was approved by CEN on 26 December 2021.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15093:2022 E
worldwide for CEN national Members.
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SIST EN 15093:2022
EN 15093:2022 (E)
Contents Page
European foreword . 3
1 Scope . 5
2 Normative references . 6
3 Terms and definitions . 9
4 Significant hazards and risk assessment .14
4.1 General .14
4.2 Interfaces to the linked/integrated equipment .15
5 Safety requirements and/or protective/risk reduction measures .15
5.1 General .15
5.2 General requirements for design, planning and risk assessment .16
5.3 List of significant hazards, hazardous situations, safety requirements and/or
protective/risk reduction measures .34
6 Verification/validation of safety requirements/functions and/or protective/risk
reduction measures .60
6.1 General .60
6.2 Required verification D .60
6.3 Required verification V, M and T .61
7 Information for use .62
7.1 General .62
7.2 Warning devices and safety signs .62
7.3 Minimum marking .62
7.4 Accompanying documents .62
7.5 Training of personnel .66
8 Supplementary information regarding repair work .66
Annex A (normative) Requirements for shut-down and stop .67
Annex B (normative) Noise test code .75
Annex C (normative) Protection of persons in case of using asphyxiant gases used in
firefighting systems .80
Annex D (informative) Machines and/or equipment covered by this European Standard .84
Annex E (informative) Example for modes of operation in relation to segregated areas .86
Annex F (informative) Example for the risk analysis due to interfaces .87
Bibliography .88
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SIST EN 15093:2022
EN 15093:2022 (E)
European foreword
This document (EN 15093:2022) has been prepared by Technical Committee CEN/TC 322 “Equipment
for making and shaping of metals - Safety requirements”, 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 September 2022, and conflicting national standards shall
be withdrawn at the latest by September 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 15093:2008.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
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SIST EN 15093:2022
EN 15093:2022 (E)
Introduction
This document is a type C standard as stated in EN ISO 12100:2010.
This document is not applicable to hot rolling mills for flat products manufactured before the date of its
publication.
This document is of relevance, in particular, for the following stakeholder groups representing the market
players with regard to machinery safety:
— machine and/or plant manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organizations, market surveillance, etc.).
Others can be affected by the level of machinery safety achieved with the means of the document by the
above-mentioned stakeholder groups:
— machine and/or plant users/employers (small, medium and large enterprises);
— service providers, e.g. for maintenance (small, medium and large enterprises).
The above-mentioned stakeholder groups have been given the possibility to participate at the drafting
process of this document.
The machinery concerned and the extent to which hazards, hazardous situations or hazardous events are
covered are indicated in the Scope of this document.
Where for clarity an example of a preventative measure is given, this should not be considered as the only
possible solution. Any other solution leading to the same risk reduction is permissible if an equivalent
level of safety is achieved.
When requirements of this type-C standard are different from those which are stated in type-A or -B
standards, the requirements of this type-C standard take precedence over the requirements of the other
standards for machines that have been designed and built according to the requirements of this type-C
standard.
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SIST EN 15093:2022
EN 15093:2022 (E)
1 Scope
This document specifies the general safety requirements for hot rolling mills for flat products as defined
in 3.1.
This document is applicable to: Plant (machinery, equipment, devices according Annex D) used for the
manufacturing of metal hot rolled flat products from the from entry (1), via the mill stands (2) with roll
changing devices (6), to the exit (5) (see Figure 1).
Key
1 material supply (excluded from the Scope), 4 coiler or plate transport
e.g. continuous casting machine (according to EN 14753) or 5 material removal or plate processing
furnace (according to EN 746-1)
6 roll changing devices
2 mill stands, including e.g. descaling unit, roller tables 7 border of the hot rolling mill
3 cooling line
Figure 1 — Exemplary layout of a hot flat rolling mill
This standard does not cover:
— thermo process equipment, e.g. in accordance with the EN 746 series; including furnaces of a steckel
mill;
— continuous casting machines according to EN 14753;
— hook conveyors according to EN 619;
— non-fixed load lifting attachments, e.g. according to EN 13155;
— roll shop equipment;
— storage equipment (e.g. high-bay warehouses);
— cranes, fork lifts, trucks and railway trucks and other vehicles;
— process technology (e.g. treatment of water, rolling lubricant, compressed air, etc.);
5
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EN 15093:2022 (E)
— separate cleaning system for exhaust air;
— firefighting system;
NOTE 1 Please refer to Annex C for information regarding the special requirements for protection of
persons in case of using asphyxiant gases used in firefighting system.
— the design of the building, halls and civil works.
This document deals with significant hazards, hazardous situations or hazardous events relevant to hot
rolling mills for flat products, when it is used as intended and under conditions of misuse which are
reasonably foreseeable by the manufacturer. It provides the requirements to be met by the manufacturer
to ensure the safety of persons and property during transport, commissioning, operation and de-
commissioning, as well as in the event of foreseeable failures or malfunctions that can occur in the
equipment.
NOTE 2 For modernization, this document (C-type standard) can be applied for the part to be modernized.
This document is not applicable to hot rolling mills for flat products manufactured before the date of its
publication.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 614-1:2006+A1:2009, Safety of machinery - Ergonomic design principles - Part 1: Terminology and
general principles
EN 614-2, Safety of machinery — Ergonomic design principles — Part 2: Interactions between the design of
machinery and work tasks
EN 842, Safety of machinery — Visual danger signals - General requirements, design and testing
EN 894-1, 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, Safety of machinery — Ergonomics requirements for the design of displays and control actuators
— Part 2: Displays
EN 894-3, Safety of machinery — Ergonomics requirements for the design of displays and control actuators
— Part 3: Control actuators
EN 981, Safety of machinery — System of auditory and visual danger and information signals
EN 1299, Mechanical vibration and shock – Vibration isolation of machines — Information for the
application of source isolation
EN 12198-3, Safety of machinery — Assessment and reduction of risks arising from radiation emitted by
machinery — Part 3: Reduction of radiation by attenuation or screening
EN 12254, Screens for laser working places - Safety requirements and testing
EN 12464-1, Light and lighting - Lighting of work places - Part 1: Indoor work places
6
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SIST EN 15093:2022
EN 15093:2022 (E)
EN 14253, Mechanical vibration – Measurement and calculation of occupational exposure to whole-body
vibration with reference to health – Practical guidance
EN 60204-1:2006, Safety of machinery - Electrical equipment of machines - Part 1: General requirements
EN 60825-1, Safety of laser products - Part 1: Equipment classification and requirements
EN 60825-4, Safety of laser products - Part 4: Laser guards
EN 61310-1, Safety of machinery - Indication, marking and actuation - Part 1: Requirements for visual,
acoustic and tactile signals
EN 61496-1, Safety of machinery - Electro-sensitive protective equipment - Part 1: General requirements
and tests
EN 62598, Nuclear instrumentation - Constructional requirements and classification of radiometric gauges
EN ISO 4413, Hydraulic fluid power - General rules and safety requirements for systems and their
components (ISO 4413)
EN ISO 4414, Pneumatic fluid power - General rules and safety requirements for systems and their
components (ISO 4414)
EN ISO 4871:2009, Acoustics - Declaration and verification of noise emission values of machinery and
equipment (ISO 4871:1996)
EN ISO 7010, Graphical symbols - Safety colours and safety signs - Registered safety signs (ISO 7010)
EN ISO 7731, Ergonomics - Danger signals for public and work areas - Auditory danger signals (ISO 7731)
EN ISO 11064-1, Ergonomic design of control centres - Part 1: Principles for the design of control centres
(ISO 11064-1)
EN ISO 11202:2010, 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 11202:2010)
EN ISO 12100:2010, Safety of machinery - General principles for design - Risk assessment and risk reduction
(ISO 12100:2010)
EN ISO 13732-1, Ergonomics of the thermal environment - Methods for the assessment of human responses
to contact with surfaces - Part 1: Hot surfaces (ISO 13732-1)
EN ISO 13849-1:2015, Safety of machinery - Safety-related parts of control systems - Part 1: General
principles for design (ISO 13849-1:2015)
EN ISO 13850:2015, Safety of machinery - Emergency stop function - Principles for design (ISO 13850:2015)
EN ISO 13854, Safety of machinery - Minimum gaps to avoid crushing of parts of the human body (ISO
13854)
EN ISO 13855, Safety of machinery - Positioning of safeguards with respect to the approach speeds of parts
of the human body (ISO 13855)
7
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SIST EN 15093:2022
EN 15093:2022 (E)
EN ISO 13857, Safety of machinery - Safety distances to prevent hazard zones being reached by upper and
lower limbs (ISO 13857)
EN ISO 14118:2018, Safety of machinery - Prevention of unexpected start-up (ISO 14118:2017)
EN ISO 14119, Safety of machinery - Interlocking devices associated with guards - Principles for design and
selection (ISO 14119)
EN ISO 14120, Safety of machinery - Guards - General requirements for the design and construction of fixed
and movable guards (ISO 14120)
EN ISO 14122 (all parts), Safety of machinery - Permanent means of access to machinery (ISO 14122)
EN ISO 14123-1, Safety of machinery - Reduction of risks to health resulting from hazardous substances
emitted by machinery - Part 1: Principles and specifications for machinery manufacturers (ISO 14123-1)
ISO 3864-1, Graphical symbols — Safety colours and safety signs — Part 1: Design principles for safety signs
and safety markings
EN 13480-1, Metallic industrial piping - Part 1: General
EN 13480-2, Metallic industrial piping - Part 2: Materials
EN 13480-3, Metallic industrial piping - Part 3: Design and calculation
EN 13480-4, Metallic industrial piping - Part 4: Fabrication and installation
EN 13480-5, Metallic industrial piping - Part 5: Inspection and testing
8
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SIST EN 15093:2022
EN 15093:2022 (E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
hot rolling mills for flat products
interconnected equipment for hot rolling of flat material in which several components of the machinery
or forming stages are linked by dedicated transport facilities, including associated devices
Note 1 to entry: Plant and equipment which are covered by this document are listed in Annex D.
3.2
safety layout
graphic overview of the hot rolling mill with arrangement of safety-related elements
3.3
hazard zone
danger zone
any space within and/or around machinery in which a person can be exposed to a hazard
[SOURCE: EN ISO 12100:2010, 3.11]
3.4
take-over-point(s)
point(s) where the hot flat rolling mill is connected to incoming/outgoing material (e.g. coils), media,
electricity (e.g. power supply and communication like input/output parameters)
Note 1 to entry: For example, coil take-over-point: Point where overhead cranes or other transport systems
deposit or remove coils.
3.5
main route(s)
marked traffic route
3.6
safeguard(ing)
guard or protective device
[SOURCE: EN ISO 12100:2010, 3.26]
3.7
reel (sleeve)
cylindrical hollow body used for coiling the material
3.8
trained person(nel)
person with the knowledge of systems, background, experience and ability to operate and/or maintain
the equipment in the intended use and proper operation of the machinery/equipment
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3.9
authorized person(nel)
trained person who is instructed by the user to perform a specific task on a specific equipment
Note 1 to entry: In contrast, an unauthorized person does not have the required qualification and is not
adequately equipped, e.g. PPE.
3.10
maintenance
combination of service, inspection, repair and functional test of the equipment
Note 1 to entry: The purpose is to preserve the working condition or returning to this condition so that the hot
flat rolling mill is able to perform the required function (including safety requirements).
3.10.1
service
measure to maintain the nominal condition
Note 1 to entry: The nominal condition can be maintained in general without dismantling/disassembling major
parts of the equipment, e.g. by cleaning and lubrication of the work equipment as well as addition or replacement
of agents or by replacing tools or operational changing parts (e.g. rolls, knives).
3.10.2
inspection
measure to observe and assess the current condition as well as fault finding
Note 1 to entry: Measures, e.g. measuring, testing, diagnostics including the determination of the causes of wear
or damage and the derivation of the necessary consequences for the continued use.
Note 2 to entry: 3.10.2 does not cover “material inspection”, see 3.17.
3.10.3
reconditioning
foreseeable measure to return to the nominal condition requiring dismantling/disassembling
Note 1 to entry: Measure to replace worn parts, damaged parts, or parts having expired the foreseen lifetime
(could require dismantling/disassembling). These parts should meet manufacturers' specifications.
3.10.4
functional test
checking of the functionality of the exchanged or repaired parts
Note 1 to entry: It is maybe required to carry out adjustment work, e.g. test runs, verifying safety functions.
3.11
repair
not foreseeable measure(s) to return to the nominal condition
Note 1 to entry: Measure to replace damaged parts, requires in general dismantling/disassembling. These parts
should meet manufacturers' specification.
3.12
material
metal being hot-rolled
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3.13
coil
coiled material
3.14
strip
flat material
3.15
material supply
devices feeding material to the hot rolling mill and which are linked by control with the hot rolling mill
3.16
material removal
devices removing material from the hot rolling mill and which are linked by control with the hot rolling
mill
3.17
material inspection
observe and assess the current condition of the material
3.18
cobbling
material leaving its intended path
3.19
pulpit
enclosed room in which the control desk and monitoring facilities for a machine or equipment are located,
used as a permanent workstation
3.20
control stand
free standing control desk (usually situated adjacent to the machine or equipment), used as a temporary
workstation
3.21
portable control device
control device which can be used in different places (e.g. control pendant, enabling button, radio control)
3.22
enabling (control) device
additional manually actuated device used in conjunction with a start control which, when continuously
actuated, permits machine function
[SOURCE: EN ISO 12100:2010, 3.28.2]
3.23
hold-to-run control device
control device which initiates and maintains machine functions only as long as the control device is
actuated
[SOURCE: EN ISO 12100:2010, 3.28.3]
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3.24
control mode(s)
single machines or groups of interlinked machines of hot flat rolling mills can be operated by different
control modes
Note 1 to entry: This standard distinguishes between control mode and operating mode. It shall be stated that
the meaning is not in line with EN ISO 12100 and EN 60204-1. The operating mode (see 3.25) corresponds to the
“control mode” of EN ISO 12100:2010, 6.2.11.9.
3.24.1
manual control mode(s)
3.24.1.1
hold-to-run control
every function is controlled by an operator by means of a button or equivalent device according to 3.28.3
of EN ISO 12100:2010
Note 1 to entry: Release of the button/device stops the function (e.g. movement) immediately.
3.24.1.2
single function
functions are started and/or stopped by an operator
3.24.2
semi-automatic control
sequence of functions released once by an operator
Note 1 to entry: The released sequence is automatically stopped at its end. For the initiation of another sequence,
a new command by the operator is required.
3.24.3
automatic control
cycles of successive or parallel sequences once initiated by the operator
Note 1 to entry: If there is no operator intervention, the repetition of the sequences takes place as long as the
running conditions are met.
3.25
operating mode(s)
state of the control system allowing to operate the hot flat rolling mill under defined conditions
Note 1 to entry: Such modes are, e.g. production, safe stop, enabling, adjustment, inspection.
Note 2 to entry: The safety level of the operating mode(s) is defined as result of the risk assessment.
3.25.1
special modes
3.25.1.1
enabling mode
operation of machine functions by using an enabling device (as per 3.23)
3.25.1.2
inching (jog) mode
operation of machine functions using a hold-to-run control device (as per 3.24)
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3.25.2
safe stop mode
movement of the involved equipment is prevented through the control system
Note 1 to entry: The required safety level of the safe intervention stop is defined as result of the risk assessment.
Note 2 to entry: Safe intervention stop is not sufficient as a safety measure to perform repair work because
isolation of the equipment from the relevant energy sources is not realized.
Note 3 to entry: Residual risks, e.g. by stored energy must have been secured by other means.
Note 4 to entry: Safe stop mode may also include switching off additional devices, e.g. X-ray.
3.25.3
normal production mode
machine is ready to produce or producing as intended
Note 1 to entry: Production, material handling and activities supporting these processes are covered.
Note 2 to entry: Maintenance according to 3.10 is not covered.
3.26
reduced speed
speed, reduced to minimize the hazardous potential without safety monitoring of speed
Note 1 to entry: In case of failure, an increase in speed may occur.
Note 2 to entry: Applies to linear or rotational speed.
Note 3 to entry: Speed reduced without an enabling device means that the movement is so slow that the operator
can move away from this dangerous movement in time. Based on a risk assessment, an enabling device may
therefore be required in some cases, even at a reduced speed (e.g. in narrow spaces).
Note 4 to entry: Examples of reduced speeds include speeds of less than 10 mm/s for presses, less than
250 mm/s for robots, less than 250 mm/s for all non-shearing movements and less than 33 mm/s for shearing or
crushing movements.
3.27
safely-limited speed, SLS
exceeding of a predefined speed limit is safety-related prevented according to EN 61800-5-2:2017,
4.2.3.4
Note 1 to entry: Linear or rotational speed.
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3.28
unexpected (unintended) start-up
any start-up caused by:
— a start command which is the result of a failure in, or an external influence on the control system;
— a start command generated by inopportune action on a start control or other parts of the machine,
as e.g. a sensor or a power control element;
— restoration of the power supply after an interruption;
— external/internal influences (gravity, wind, self-ignition in internal combustion engines…) on parts
of the machine
Note 1 to entry: Automatic machine start-up during normal operation is not unintended but can be considered to
be unexpected from the point of view of the operator. Prevention of accidents in this case involves the use of
safeguarding.
Note 2 to entry: Definition adapted from EN ISO 14118:2018, 3.2.
3.29
remote access
access from remote location via interface to control systems of the cold flat rolling mill, e.g. for software
update
3.30
safety access
access into a danger zone by using interlocking guards or trip devices and monitored by the safety control
Note 1 to entry: Definition of interlocking guard and trip device according to EN ISO 12100:2010, 3.27.4 and
3.28.5.
Note 2 to entry: In general, all hazardous movements are stopped.
3.31
ionizing radiation
x-ray radiation or radiation emanating from radioactive sources
4 Significant hazards and risk assessment
4.1 General
Machinery shall comply with the safety requirements and/or protective/risk reduction measures of
Clause 5. In addition, the machine shall be designed according to the principles of EN ISO 12100:2010 for
relevant but not significant hazards which are not dealt with by this document.
In general, risks and associated hazards are production and plant related. The main differences arise from
the processing of different materials in different qualities and the surroundings (i.e. different
combinations of machines, differe
...
SLOVENSKI STANDARD
oSIST prEN 15093:2019
01-november-2019
Varnost strojev - Varnostne zahteve za valjarne (vroče valjanje)
Safety of machinery - Safety requirements for hot flat rolling mills
Sicherheit von Maschinen - Sicherheitsanforderungen an Warmflachwalzwerke
Sécurité des machines - Prescriptions de sécurité relatives aux laminoirs à chaud pour
produits plats
Ta slovenski standard je istoveten z: prEN 15093
ICS:
13.110 Varnost strojev Safety of machinery
25.120.20 Valjalni stroji, stroji za Rolling, extruding and
vbrizgovanje in vlečni stroji drawing equipment
oSIST prEN 15093:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 15093:2019
DRAFT
EUROPEAN STANDARD
prEN 15093
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2019
ICS 77.180 Will supersede EN 15093:2008
English Version
Safety of machinery - Safety requirements for hot flat
rolling mills
Sécurité des machines - Prescriptions de sécurité Sicherheit von Maschinen - Sicherheitsanforderungen
relatives aux laminoirs à chaud pour produits plats an Warmflachwalzwerke
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 322.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
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 supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15093:2019 E
worldwide for CEN national Members.
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Contents Page
European foreword . 4
1 Scope . 6
2 Normative references . 7
3 Terms and definitions . 9
4 Significant hazards and risk assessment . 15
4.1 General . 15
4.2 Interfaces to the linked/integrated equipment . 15
5 Safety requirements and/or protective/risk reduction measures . 15
5.1 General . 15
5.2 General requirements for design, planning and risk assessment . 16
5.3 List of significant hazards, hazardous situations, safety requirements and/or
protective/risk reduction measures . 34
6 Verification/validation of safety requirements/functions and/or protective/risk
reduction measures . 60
6.1 General . 60
6.2 Required verification D . 60
6.3 Required verification V, M and T . 60
7 Information for use . 61
7.1 General . 61
7.2 Warning devices and safety signs . 61
7.3 Minimum marking . 62
7.4 Accompanying documents . 62
7.5 Training of personnel . 65
8 Supplementary information regarding repair work . 65
Annex A (normative) Requirements for shut-down and stop . 67
Annex B (normative) Noise test code . 74
Annex C (normative) Protection of persons in case of using asphyxiant gases used in
firefighting systems . 79
Annex D (informative) Machines and/or equipment covered by this European Standard . 83
Annex E (informative) Example for modes of operation in relation to segregated areas . 85
Annex F (informative) Example for the risk analysis due to interfaces . 86
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC (Machinery Directive) aimed to be
covered. 87
Bibliography . 90
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Figures
Figure 1 — Exemplary layout of a hot flat rolling mill . 6
Figure 2 — Schematic representation of the life phases of a hot flat rolling mill . 16
Figure E.1 — Schematic diagram of modes of operation in relation to segregated areas . 85
Figure F.1 — Diagram of a hypothetical plant indicating potentially hazardous interfaces . 86
Tables
Table 1 — Characteristic tasks and conditions for exemplary operating modes . 20
Table 2 — Determination of PLr . 26
Table 3 — Main noise sources of hot flat rolling mills equipment and exemplary noise reduction
measures . 33
Table 4 — Significant hazards, hazardous situations, Safety requirements and/or protective/risk
reduction measures . 35
Table A.1 — Shut-down functions . 69
Table A.2 — Emergency stop and stop functions . 71
Table B.1 — Example of declared dual-number noise emission values for work stations and specified
measuring points . 78
Table ZA.1 — Correspondence between this European Standard and Annex I of Directive 2006/42/EC
. 87
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European foreword
This document (prEN 15093:2019) has been prepared by Technical Committee CEN/TC 322
“Equipment for making and shaping of metals - Safety requirements”, the secretariat of which is held by
DIN.
This document is currently submitted to the CEN Enquiry
This document will supersede EN 15093:2008-10.
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.
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Introduction
This European Standard is a type C standard as stated in EN ISO 12100:2010.
This document is not applicable to hot rolling mills for flat products manufactured before the date of its
publication.
This document is of relevance, in particular, for the following stakeholder groups representing the
market players with regard to machinery safety:
— machine and/or plant manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organizations, market surveillance, etc.).
Others can be affected by the level of machinery safety achieved with the means of the document by the
above-mentioned stakeholder groups:
— machine and/or plant users/employers (small, medium and large enterprises);
— service providers, e.g. for maintenance (small, medium and large enterprises).
The above-mentioned stakeholder groups have been given the possibility to participate at the drafting
process of this document.
The machinery concerned and the extent to which hazards, hazardous situations or hazardous events
are covered are indicated in the Scope of this document.
Where for clarity an example of a preventative measure is given, this should not be considered as the
only possible solution. Any other solution leading to the same risk reduction is permissible if an
equivalent level of safety is achieved.
When requirements of this type-C standard are different from those which are stated in type-A or -B
standards, the requirements of this type-C standard take precedence over the requirements of the other
standards for machines that have been designed and built according to the requirements of this type-C
standard.
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1 Scope
This document specifies the general safety requirements for hot rolling mills for flat products as defined
in 3.1.
This document is applicable to: Plant (machinery, equipment, devices according Annex D) used for the
manufacturing of metal hot rolled flat products from the material supply from entry (1), via the mill
stands (2) with roll changing devices (6), to the exit (5) (see Figure 1).
Key
1 material supply (excluded from the Scope), 4 coiler or plate transport
e.g. continuous casting machine (according to EN 14753) or 5 material removal or plate processing
furnace (according to EN 746-1)
6 roll changing devices
2 mill stands, including e.g. descaling unit, roller tables 7 border of the hot rolling mill
3 cooling line
Figure 1 — Exemplary layout of a hot flat rolling mill
This standard does not cover:
— thermo process equipment, e.g. in accordance with the EN 746 series;
— continuous casting machines according to EN 14753;
— hook conveyors according to EN 619;
— non-fixed load lifting attachments, e.g. according to EN 13155;
— roll shop equipment;
— storage equipment (e.g. high-bay warehouses);
— cranes, fork lifts, trucks and railway trucks and other vehicles;
— process technology (e.g. treatment of water, rolling lubricant, compressed air, etc.);
— separate cleaning system for exhaust air;
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— firefighting system.
NOTE 1 Special requirements for protection of persons in case of using asphyxiant gases used in
firefighting system is covered by this document (see Annex C).
This document deals with significant hazards, hazardous situations or hazardous events relevant to hot
rolling mills for flat products, when it is used as intended and under conditions of misuse which are
reasonably foreseeable by the manufacturer. It provides the requirements to be met by the
manufacturer to ensure the safety of persons and property during transport, commissioning, operation
and de-commissioning, as well as in the event of foreseeable failures or malfunctions that can occur in
the equipment.
NOTE 2 For modernization, this document (C-type standard) can be applied for the part to be modernized.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 349, Safety of machinery — Minimum gaps to avoid crushing of parts of the human body
EN 614-1:2006+A1:2009, Safety of machinery — Ergonomic design principles — Part 1: Terminology and
general principles
EN 614-2, Safety of machinery — Ergonomic design principles — Part 2: Interactions between the design
of machinery and work tasks
EN 842, Safety of machinery — Visual danger signals - General requirements, design and testing
EN 894-1, 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, Safety of machinery — Ergonomics requirements for the design of displays and control
actuators — Part 2: Displays
EN 894-3, Safety of machinery — Ergonomics requirements for the design of displays and control
actuators — Part 3: Control actuators
EN 981, Safety of machinery — System of auditory and visual danger and information signals
EN 1063, Glass in building - Security glazing - Testing and classification of resistance against bullet attack
EN 1299, Mechanical vibration and shock – Vibration isolation of machines — Information for the
application of source isolation
EN 12198-3, Safety of machinery — Assessment and reduction of risks arising from radiation emitted by
machinery — Part 3: Reduction of radiation by attenuation or screening
EN 12254, Screens for laser working places - Safety requirements and testing
EN 12464-1, Light and lighting - Lighting of work places - Part 1: Indoor work places
EN 13861, Safety of machinery - Guidance for the application of ergonomics standards in the design of
machinery
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EN 14253, Mechanical vibration – Measurement and calculation of occupational exposure to whole-body
vibration with reference to health – Practical guidance
EN 15004-1, Fixed firefighting systems - Gas extinguishing systems - Part 1: Design, installation and
maintenance (ISO 14520-1d)
EN 50171, Central power supply systems
EN 60204-1:2006, Safety of machinery - Electrical equipment of machines - Part 1: General requirements
(IEC 44/617/CD:2010)
EN 60447, Basic and safety principles for man-machine interface, marking and identification - Actuating
principles (IEC 60447)
EN 60825-1, Safety of laser products — Part 1: Equipment classification and requirements (IEC 60825- 1)
EN 60825-4, Safety of laser products - Part 4: Laser guards (IEC 60825-4:2006)
EN 61310-1, Safety of machinery - Indication, marking and actuation - Part 1: Requirements for visual,
acoustic and tactile signals (IEC 61310-1:)
EN 61310-2, Safety of machinery - Indication, marking and actuation - Part 2: Requirements for marking
(IEC 61310-2:2007)
EN 61496-1, Safety of machinery - Electro-sensitive protective equipment - Part 1: General requirements
and tests (IEC 61496-1)
EN 62598, Nuclear instrumentation - Constructional requirements and classification of radiometric
gauges (IEC 62598)
EN ISO 361, Basic ionizing radiation symbol (ISO 361)
EN ISO 4413, Hydraulic fluid power - General rules and safety requirements for systems and their
components (ISO 4413:2010)
EN ISO 4414, Pneumatic fluid power - General rules and safety requirements for systems and their
components (ISO 4414:2010)
EN ISO 4871:2009, Acoustics - Declaration and verification of noise emission values of machinery and
equipment (ISO 4871:1996)
EN ISO 7010, Graphical symbols - Safety colours and safety signs - Registered safety signs (ISO 7010:2011)
EN ISO 7731, Ergonomics - Danger signals for public and work areas - Auditory danger signals (ISO
7731:2003)
EN ISO 11064-1, Ergonomic design of control centres - Part 1: Principles for the design of control centres
(ISO 11064-1:2000)
EN 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 11202)
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EN ISO 12100:2010, Safety of machinery - General principles for design - Risk assessment and risk
reduction (ISO 12100:2010)
EN ISO 13732-1, Ergonomics of the thermal environment - Methods for the assessment of human
responses to contact with surfaces - Part 1: Hot surfaces (ISO 13732-1)
EN ISO 13849-1:2015, Safety of machinery - Safety-related parts of control systems - Part 1: General
principles for design (ISO 13849-1:2015)
EN ISO 13850:2015, Safety of machinery - Emergency stop function - Principles for design (ISO 13850)
EN ISO 13855, Safety of machinery - Positioning of safeguards with respect to the approach speeds of
parts of the human body (ISO 13855:2010)
EN ISO 13857, Safety of machinery - Safety distances to prevent hazard zones being reached by upper and
lower limbs (ISO 13857:2008)
EN ISO 14118, Safety of machinery - Prevention of unexpected start-up (ISO 14118)
EN ISO 14119, Safety of machinery - Interlocking devices associated with guards - Principles for design
and selection (ISO 14119)
EN ISO 14120, Safety of machinery - Guards - General requirements for the design and construction of
fixed and movable guards (ISO 14120)
EN ISO 14122-1, Safety of machinery - Permanent means of access to machinery - Part 1: Choice of fixed
means and general requirements of access (ISO 14122-1)
EN ISO 14122-2, Safety of machinery - Permanent means of access to machinery - Part 2: Working
platforms and walkways (ISO 14122-2)
EN ISO 14122-3, Safety of machinery - Permanent means of access to machinery - Part 3: Stairs,
stepladders and guard-rails (ISO 14122-3)
EN ISO 14122-4, Safety of machinery - Permanent means of access to machinery - Part 4: Fixed ladders
(ISO 14122-4)
EN ISO 14123-1, Safety of machinery - Reduction of risks to health resulting from hazardous substances
emitted by machinery - Part 1: Principles and specifications for machinery manufacturers (ISO 14123-1)
ISO 3864-1, Graphical symbols — Safety colours and safety signs — Part 1: Design principles for safety
signs and safety markings
ISO 6183, Fire protection equipment — Carbon dioxide extinguishing systems for use on premises —
Design and installation
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
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• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
hot rolling mills for flat products
interconnected equipment for hot rolling of flat material in which several components of the machinery
or forming stages are linked by dedicated transport facilities, including associated devices
Note 1 to entry: Plant and equipment which are covered by this document are listed in Annex D.
3.2
safety layout
graphic overview of the hot rolling mill with arrangement of safety-related elements
3.3
hazard zone
danger zone
any space within and/or around machinery in which a person can be exposed to a hazard
[SOURCE: EN ISO 12100:2010, 3.11]
3.4
take-over-point(s)
point(s) where the hot flat rolling mill is connected to incoming/outgoing material (e.g. coils), media,
electricity (e.g. power supply and communication like input/output parameters)
Note 1 to entry: For example, coil take-over-point: Point where overhead cranes or other transport systems
deposit or remove coils.
3.5
main route(s)
marked traffic route
3.6
safeguard(ing)
guard or protective device
[SOURCE: EN ISO 12100:2010, 3.26]
3.7
reel (sleeve)
cylindrical hollow body used for coiling the material
3.8
trained person(nel)
person with the knowledge of systems, background, experience and ability to operate and/or maintain
the equipment in the intended use and proper operation of the machinery/equipment
3.9
authorized person(nel)
trained person who is instructed by the user to perform a specific task on a specific equipment
Note 1 to entry: In contrast, an unauthorized person does not have the required qualification and is not
adequately equipped, e.g. PPE.
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3.10
maintenance
combination of service, inspection, repair and functional test of the equipment
Note 1 to entry: The purpose is to preserve the working condition or returning to this condition so that the hot
flat rolling mill is able to perform the required function (including safety requirements).
3.10.1
service
measure to maintain the nominal condition
Note 1 to entry: The nominal condition can be maintained in general without dismantling/disassembling major
parts of the equipment, e.g. by cleaning and lubrication of the work equipment as well as addition or replacement
of agents or by replacing tools or operational changing parts (e.g. rolls, knives).
3.10.2
inspection
measure to observe and assess the current condition as well as fault finding
Note 1 to entry: Measures, e.g. measuring, testing, diagnostics including the determination of the causes of wear
or damage and the derivation of the necessary consequences for the continued use.
Note 2 to entry: 3.10.2 does not cover "material inspection", see 3.17.
3.10.3
reconditioning
foreseeable measure to return to the nominal condition requiring dismantling/disassembling
Note 1 to entry: Measure to replace worn parts, damaged parts, or parts having expired the foreseen lifetime
(could require dismantling/disassembling). These parts should meet manufacturers' specifications.
3.10.4
functional test
checking of the functionality of the exchanged or repaired parts
Note 1 to entry: It is maybe required to carry out adjustment work, e.g. test runs, verifying safety functions.
3.11
repair
not foreseeable measure(s) to return to the nominal condition
Note 1 to entry: Measure to replace damaged parts, requires in general dismantling/disassembling. These parts
should meet manufacturers' specification.
3.12
material
metal being hot-rolled
3.13
coil
coiled material
3.14
strip
flat material
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3.15
material supply
devices feeding material to the hot rolling mill and which are linked by control with the hot rolling mill
3.16
material removal
devices removing material from the hot rolling mill and which are linked by control with the hot rolling
mill
3.17
material inspection
observe and assess the current condition of the material
3.18
cobbling
material leaving its intended path
3.19
pulpit
enclosed room in which the control desk and monitoring facilities for a machine or equipment are
located, used as a permanent workstation
3.20
control stand
free standing control desk (usually situated adjacent to the machine or equipment), used as a
temporary workstation
3.21
portable control device
control device which can be used in different places (e.g. control pendant, enabling button, radio
control)
3.22
enabling (control) device
additional manually actuated device used in conjunction with a start control which, when continuously
actuated, permits machine function
[SOURCE: EN ISO 12100:2010, 3.28.2]
3.23
hold-to-run control device
control device which initiates and maintains machine functions only as long as the control device is
actuated
[SOURCE: EN ISO 12100:2010, 3.28.3]
3.24
control mode(s)
single machines or groups of interlinked machines of hot flat rolling mills can be operated by different
control modes
Note 1 to entry: This standard distinguishes between control mode and operating mode. It must be stated that
the meaning is not in line with EN ISO 12100 and EN 60204-1. The operating mode (see 3.25) corresponds to the
"control mode" of EN ISO 12100:2010, 6.2.11.9.
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3.24.1
manual control mode(s)
3.24.1.1
hold-to-run control
every function is controlled by an operator by means of a button or equivalent device according to
3.28.3 of EN ISO 12100:2010
Note 1 to entry: Release of the button/device stops the function (e.g. movement) immediately.
3.24.1.2
single function
functions are started and/or stopped by an operator
3.24.2
semi-automatic control
sequence of functions released once by an operator
Note 1 to entry: The released sequence is automatically stopped at its end. For the initiation of another
sequence, a new command by the operator is required.
3.24.3
automatic control
cycles of successive or parallel sequences once initiated by the operator
Note 1 to entry: If there is no operator intervention, the repetition of the sequences takes place as long as the
running conditions are met.
3.25
operating mode(s)
state of the control system allowing to operate the hot flat rolling mill under defined conditions
Note 1 to entry: Such modes are, e.g. production, safe stop, enabling, adjustment, inspection.
Note 2 to entry: The safety level of the operating mode(s) is defined as result of the risk assessment.
3.25.1
special modes
3.25.1.1
enabling mode
operation of machine functions by using an enabling device (as per 3.23)
3.25.1.2
inching (jog) mode
operation of machine functions using a hold-to-run control device (as per 3.24)
3.25.2
safe stop mode
movement of the involved equipment is prevented through the control system
Note 1 to entry: The required safety level of the safe intervention stop is defined as result of the risk
assessment.
Note 2 to entry: Safe intervention stop is not sufficient as a safety measure to perform repair work because
isolation of the equipment from the relevant energy sources
...
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