Safety of machinery - Safety requirements for steel converter and associated equipment
This European Standard applies to:
Steel converter and its associated equipment for the oxygen steelmaking process
- from hot metal/liquid steel and scrap charging;
- via oxygen refining and/or bottom blowing/stirring,
- temperature measurement and sampling equipment,
- cooling systems,
- up to tapping including slag retaining device and deslagging,
- maintenance devices,
- process related interfaces (e. g., according to design, controls) to
- primary and secondary gas cleaning plant,
- material handling systems and ferro alloy systems,
- transfer cars for steel ladle and slag pot and
- charging cranes.
Sicherheit von Maschinen - Sicherheitsanforderungen an Stahlkonverter und zugehörige Einrichtungen
Diese Europäische Norm gilt für Stahlkonverter und zugehörige Einrichtungen (nachfolgend als Konverter-anlage bezeichnet), die bei der Herstellung von Kohlenstoffstahl oder nichtrostendem Stahl eingesetzt werden, wie in 3.1 definiert und in Anhang B illustriert.
Diese Europäische Norm behandelt die für die Konverteranlage zutreffenden signifikanten Gefährdungen, Gefährdungssituationen und –ereignisse. Die Norm deckt die bestimmungsgemäße Verwendung und eine vorhersehbare Fehlanwendung ab.
Diese Europäische Norm beschreibt die Anforderungen zur Gewährleistung der Sicherheit von Personen, die bei Transport, Montage, Inbetriebnahme, Betrieb, Instandhaltung (siehe Abschnitt 5) und Außer-betriebnahme/Demontage der Anlage zu berücksichtigen sind.
Diese Europäische Norm gilt für:
Stahlkonverter und zugehörige Einrichtungen für das Sauerstoffblasverfahren:
von der Beschickung mit flüssigem Roheisen/Stahl und Schrott;
über Sauerstofffrischen und Spülen;
Temperaturmessung und Probenahmegeräte;
bis zum Abstich, einschließlich Schlackenrückhaltevorrichtungen;
Instandhaltungseinrichtungen (z. B. Ausmauerungsvorrichtung, Abstichloch-Reparatureinrichtung);
prozessbezogene Schnittstellen/Wechselwirkungen (z. B. auf Konstruktion und Steuerungen bezogen) zu:
primären und sekundären Gasreinigungsanlagen;
Materialhandhabungssystemen und Ferrolegierungssystemen;
Transportwagen für Stahlpfannen und Schlackenkübel; und
Beschickungs-/Absticheinrichtungen, z. B. Krane, Schrottschurre, Pfannen und Schlackenkübel.
Die vorliegende Europäische Norm behandelt keine Sicherheitsanforderungen für:
die Verwendung anderer Prozessmedien als Sauerstoff, Stickstoff, Argon und Druckluft;
primäre und sekundäre Gasreinigungsanlagen;
Transportwagen für Stahlpfannen und Schlackenkübel; und
Beschickung/Abstich und Abschlackeinrichtungen, z. B. Krane, Schrottrutschen, Pfannen und Schlackenkübel;
zusätzliche Hebevorrichtungen und Winden.
ANMERKUNG 1 Für Änderungen des Konverterprozesses, bei denen andere Gase und Medien, z. B. Kohlen-wasserstoffe, Brennstoffe, Dampf usw., verwendet werden, müssen zusätzliche Sicherheitsmaßnahmen berücksichtigt werden, die nicht von dieser Sicherheitsnorm nicht behandelt werden.
Diese Europäische Norm gilt nicht für Konverteranlagen, die vor dem Datum der Veröffentlichung dieser Norm durch das CEN hergestellt wurden.
ANMERKUNG 2 Bei Modernisierungen kann diese Europäische Norm als Leitfaden für die zu modernisierenden Teile angewendet werden.
Sécurité des machines - Prescriptions de sécurité pour les convertisseurs d'acier et les équipements associés
La présente Norme européenne s'applique aux convertisseurs d'acier et aux équipements associés (ci-après désignés sous le terme « installation de conversion ») utilisés dans le procédé de fabrication d'acier au carbone ou d'acier inoxydable, tels que définis au paragraphe 3.1 et qu'illustrés à l'Annexe B.
La présente Norme européenne traite de tous les phénomènes, situations et événements dangereux significatifs des machines et des équipements des installations de conversion, lorsqu'ils sont utilisés normalement et dans des conditions de mauvaise utilisation raisonnablement prévisibles par le fabricant.
La présente Norme européenne spécifie les prescriptions de sécurité à respecter lors de la conception, l'assemblage, le transport, la mise en service, l'exploitation, la maintenance (telles que décrites à l'Article 5) et le déclassement/démontage des équipements.
Varnost strojev - Varnostne zahteve za peči za proizvodnjo jekla in pripadajočo opremo
Ta evropski standard se uporablja za: peči za proizvodnjo jekla in pripadajočo opremo za postopek proizvodnje jekla s kisikom – od polnjenja vročih kovin/tekočega jekla; – prek izboljšave kisika in/ali vpihovanja/mešanja na dnu, – opreme za merjenje temperature in vzorčenje, – hladilnih sistemov – pa do izrezovanja navojev, vključno z napravo za zadrževanje žlindre in odstranjevanje žlindre, – naprav za vzdrževanje, – vmesnikov, povezanih s postopkom (npr. glede na zasnovo, krmilne elemente) ter – medijev, – primarnih in sekundarnih sistemov za čiščenje plina, – sistemov za upravljanje materialov in sistemov za železove zlitine, – transportnih vozičkov za livne ponve in ter posode za žlindro – žerjavov za polnjenje.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RSUHPRSicherheit von Maschinen - Sicherheitsanforderungen an Stahlkonverter und zugehörige EinrichtungenSécurité des machines - Prescriptions de sécurité pour les convertisseurs d'acier et les équipements associésSafety of machinery - Safety requirements for steel converter and associated equipment77.180Oprema za metalurško industrijoEquipment for the metallurgical industry13.110Varnost strojevSafety of machineryICS:Ta slovenski standard je istoveten z:EN 16774:2016SIST EN 16774:2016en,fr,de01-junij-2016SIST EN 16774:2016SLOVENSKI
SIST EN 16774:2016
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
t r s x ICS
y yä s z r English Version
Safety of machinery æ Safety requirements for steel converter and associated equipment Sécurité des machines æ Prescriptions de sécurité pour les convertisseurs d 5acier et les équipements associés Sicherheit von Maschinen æ Sicherheitsanforderungen an Stahlkonverter und zugehörige Einrichtungen This European Standard was approved by CEN on
t y February
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x y y vã t r s x ESIST EN 16774:2016
EN 16774:2016 (E) 2 Contents Page
European foreword . 4 Introduction . 5 1 Scope . 6 2 Normative references . 7 3 Terms and definitions . 9 4 List of significant hazards . 13 5 Safety requirements and/or measures . 13 5.1 General . 13 5.2 List of significant hazards, hazardous situations, safety requirements and/or measures . 22 6 Verification of the safety requirements and/or measures . 36 7 Information for use . 36 7.1 General . 36 7.2 Warning devices and safety signs . 37 7.3 Accompanying documents . 37 7.4 Minimum marking . 42 7.5 Training of personnel . 42 Annex A (normative)
Safety requirements for electrical equipment and for safety related control systems . 43 A.1 General . 43 A.2 Special requirements for safety related control systems . 43 A.3 Special requirements for shut-down equipment. 43 Annex B (normative)
Steel converter and its associated equipment for the oxygen steelmaking process. 45 Annex C (normative)
Noise test code . 46 C.1 Introduction . 46 C.2 Determination of sound power level . 47 C.3 Determination of emission sound pressure levels . 47 C.4 Measurement uncertainties . 47 C.5 Operating conditions . 48 C.6 Information to be recorded and reported . 48 C.7 Declaration and verification of noise emission values . 49 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC (Machinery Directive) aimed to be covered. 52 Bibliography . 53 SIST EN 16774:2016
EN 16774:2016 (E) 3 Figures Figure B.1 — Exemplary illustration of a steel converter and its associated equipment for the oxygen steelmaking process . 45 Figure C.1 — Exemplary illustration of a BOF converter platform and lance cleaning platform . 50
Tables Table 1 — List of significant hazards, hazardous situations safety requirements and/or measures . 23 Table 2 — Exemplary hazardous situations and proposals for references to the user . 40 Table C.1 — Example of declared dual-number noise emission values for operating stations and specified points . 51
SIST EN 16774:2016
EN 16774:2016 (E) 4 European foreword This document (EN 16774:2016) has been prepared by Technical Committee CEN/TC 322 “Equipments 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 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. This document is of relevance, in particular, for the following stakeholder groups representing the market players with regard to machinery safety: — machine 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 users/employers (small, medium and large enterprises); — machine users/employees (e.g. trade unions, organizations for people with special needs); — service providers, e.g. for maintenance (small, medium and large enterprises); — consumers (in case of machinery intended for use by consumers). The above-mentioned stakeholder groups have been given the possibility to participate at the drafting process 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. SIST EN 16774:2016
EN 16774:2016 (E) 5 Introduction This European Standard is a type C standard as stated in EN ISO 12100. The machines and equipment concerned and the extent to which hazards, hazardous situations and events are covered are indicated in the scope of this standard. This document assumes that — the converter plant is operated and maintained by adequately trained and competent personnel (see 7.5); — manual intervention for setting, adjustment and maintenance is accepted as part of the intended use of the plant; — the plant is used with adequate workplace lighting conforming to EN 12464-1. This document assumes that the input materials do not contain the following hazardous components: — radioactive scrap; — explosives; — entrapped water/ice; — closed containers; — oversized scrap which can lead to water leakage due to collision with lances (see 7.3.5). The charging should be done to avoid/minimize risk of explosion. When requirements of this type-C standard are different from those which are stated in type-A or type-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. SIST EN 16774:2016
EN 16774:2016 (E) 6 1 Scope This European Standard applies for steel converter and its associated equipment (hereinafter referred to as converter plant) used in the process of carbon or stainless steel making as defined in 3.1 and illustrated in Annex B. This European Standard deals with significant hazards, hazardous situations and events relevant to the converter plant. It covers the intended use and foreseeable misuse. This European Standard specifies the safety requirements to be met during transport, assembly, commissioning, operation, maintenance (as described in Clause 5) and decommissioning/disassembly of the equipment. This European Standard applies to: Steel converter and its associated equipment for the oxygen steelmaking process — from hot metal/liquid steel and scrap charging; — via oxygen refining and stirring; — temperature measurement and sampling equipment; — up to tapping including slag retaining device; — cooling systems; — maintenance devices (e.g. relining device, tap hole repair device); — process related interfaces/interactions (e.g. according to design, controls) to — media, — primary and secondary gas cleaning plant, — material feeding systems and ladle alloying systems, — transfer cars for steel ladle and slag pot, and — charging/tapping equipment, e.g. crane, scrap chute, ladles and slag pots. This European Standard does not cover safety requirements for: — usage of process media other than oxygen, nitrogen, argon and compressed air; — primary and secondary gas cleaning plants; — measuring devices with radioactive sources; — material feeding systems and ladle alloying systems; — transfer cars for steel ladle and slag pot; — charging/tapping and de-slagging equipment, e.g. crane, scrap chutes, ladles and slag pots; — auxiliary winches and hoists. SIST EN 16774:2016
EN 16774:2016 (E) 7 NOTE 1 For variations of converter process where other gases and media, e.g. hydrocarbons, fuels, steam, etc. are used, additional safety measures have to be considered which are not covered in this safety standard This European Standard is not applicable to converter plant, manufactured before the date of publication of this standard in the Official Journal (OJ). NOTE 2 In case of revamping, this European Standard can be used as a guideline for the specific parts to be revamped. 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. EN 349, Safety of machinery — Minimum gaps to avoid crushing of parts of the human body EN 614-1, 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 981, Safety of machinery — System of auditory and visual danger and information signals EN 1037, Safety of machinery — Prevention of unexpected start-up EN 1299, Mechanical vibration and shock — Vibration isolation of machines — Information for the application of source isolation EN 12094-1, Fixed firefighting systems — Components for gas extinguishing systems — Part 1: Requirements and test methods for electrical automatic control and delay devices EN 12464-1, Light and lighting — Lighting of work places — Part 1: Indoor work places 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 14520-1:2006, modified) EN 60204-1:2006, Safety of machinery — Electrical equipment of machines — Part 1: General requirements (IEC 60204-1:2005) 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) EN 61310-3, Safety of machinery — Indication, marking and actuation — Part 3: Requirements for the location and operation of actuators (IEC 61310-3) SIST EN 16774:2016
EN 16774:2016 (E) 8 EN 62061:2005, Safety of machinery — Functional safety of safety-related electrical, electronic and programmable electronic control systems (IEC 62061:2005) 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 11688-1, Acoustics — Recommended practice for the design of low-noise machinery and equipment — Part 1: Planning (ISO/TR 11688-1) 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 13849-2:2012, Safety of machinery — Safety-related parts of control systems — Part 2: Validation (ISO 13849-2:2012) EN ISO 13850:2015, Safety of machinery — Emergency stop function — Principles for design (ISO 13850:2015) EN ISO 13857, Safety of machinery — Safety distances to prevent hazard zones being reached by upper and lower limbs (ISO 13857) 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 of access between two levels (ISO 14122-1) SIST EN 16774:2016
EN 16774:2016 (E) 9 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) EN ISO 14123-2, Safety of machinery — Reduction of risks to health resulting from hazardous substances emitted by machinery — Part 2: Methodology leading to verification procedures (ISO 14123-2) EN ISO 19353, Safety of machinery — Fire prevention and fire protection (ISO 19353) ISO 3864-1, Graphical symbols — Safety colours and safety signs — Part 1: Design principles for safety signs and safety markings ISO 3864-2, Graphical symbols — Safety colours and safety signs — Part 2: Design principles for product safety labels ISO 3864-3, Graphical symbols — Safety colours and safety signs — Part 3: Design principles for graphical symbols for use in safety signs ISO 7000, Graphical symbols for use on equipment — Registered symbols ISO 16069, Graphical symbols — Safety signs — Safety way guidance systems (SWGS) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 12100 and the following apply. NOTE Definitions used in EN and ISO standards referred to in this European Standard are also valid for this document. 3.1 steel converter tiltable unit for the production of carbon or stainless steel Note 1 to entry: This tiltable unit is mainly consisting of a vessel with refractory lining, trunnion ring, vessel suspension system, tilting drive. 3.2 associated equipment additional equipment for the production of carbon steel or stainless steel by means of a steel converter Note 1 to entry: For associated equipment, e.g. lances, see Figure B.1. 3.3 refining conversion of hot metal to carbon steel or stainless steel by elimination of (mainly) carbon (and other unwanted elements like silicon, phosphor) using oxygen supply SIST EN 16774:2016
EN 16774:2016 (E) 10 3.4 refining processes the processes differ in oxygen supply from top and by injection or in a combination of both; optionally with gas stirring 3.5 production process all production-related activities between charging to tapping 3.6 maintenance devices devices to maintain the converter, e.g. relining device, tap hole repair device 3.7 control modes 3.7.1 manual control every single function/movement will be individually triggered by the operator 3.7.2 automatic control sequence of serial or parallel functions/movements triggered by the operator 3.8 special control modes dedicated modes activated by a specific device, to carry out operations like skull removal or slag splashing 3.9 maintenance all activities carried out outside the production process 3.9.1 inspection basic checks (e.g. visual) of equipment 3.9.2 service periodic exchange of lances, cleaning (e.g. lance, converter mouth), lubrication, adjustment of limit switches 3.9.3 repair repair or exchange of damaged components accompanied with complete shutdown (i.e. isolation of energy) 3.9.4 relining all activities from shut down of converter for relining up to end of pre-heating (including converter vessel exchange or parts of it, refractory breakout) SIST EN 16774:2016
EN 16774:2016 (E) 11 3.9.5 skull removal special procedure for removing the skull inside the converter by using the blowing lance 3.10 ladle vessel with refractory lining to collect, treat, transport and charge/discharge hot metal/steel 3.11 slag pot vessel to collect, treat and transport slag 3.12 scrap chute scrap charging container used to charge scrap into the converter 3.13 work stations predefined locations for personnel used for production or maintenance activities 3.13.1 operating stations locations where operating personnel is required during the production process 126.96.36.199 converter control room main control room in which the control desk and monitoring facilities for a steel converter are located Note 1 to entry: It is a location where operating personnel is required permanently during the production process. 188.8.131.52 local control stands control units usually situated adjacent to the equipment Note 1 to entry: It is a location where operating personnel is required temporarily during the production process, e.g. during charging or tapping. 184.108.40.206 portable control box mobile control units connected to the control system Note 1 to entry: For example, to position equipment more precisely. 3.13.2 maintenance points locations where personnel is required during maintenance Note 1 to entry: All above-mentioned stations can also be used for maintenance. 3.14 trained personnel 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 SIST EN 16774:2016
EN 16774:2016 (E) 12 3.15 authorized personnel trained person who is instructed by the user to perform a specific task on a specific equipment 3.16 doghouse enclosure around the converter vessel consisting of sidewalls, ceiling and movable doors (see 220.127.116.11) Note 1 to entry: The primary purpose is to contain noise and dust during process. 3.17 platforms areas on different operating levels Note 1 to entry: For example, for equipment placement and access (see Figure C.1). 3.18 skirt movable water cooled part of the gas cleaning system Note 1 to entry: Located above the converter mouth 3.19 protection platform (re-)movable platform above the converter Note 1 to entry: Protecting lower areas from falling material. 3.20 protected area area where persons find protection 3.21 danger zone hazard zone any space within and/or around machinery in which a person can be exposed to a hazard 3.22 safety layout graphical description of plant-related equipment with regard to safety 3.23 warning system visible, audible warning devices or a combination of both 3.24 blowing-lance water cooled vertical lance used for blowing technical gases, mainly oxygen 3.25 sub-lance water cooled vertical lance used for temperature measurement and sampling during blowing SIST EN 16774:2016
EN 16774:2016 (E) 13 3.26 relining machinery/device machine for manual or automatic installation of refractory lining inside the converter Note 1 to entry: Associated lifting, lowering and travelling devices for material transport and access to the workplace are included. Note 2 to entry: For the associated lifting devices of relining machinery the Directive 95/16/EC on lifts is not applicable (see also Article 24, Point 3, 9th indent of Machinery Directive 2006/42/EC). 4 List of significant hazards All the significant hazards, hazardous situations and events, as far as they are dealt with in this standard, identified by risk assessment as significant for this type of machinery and which require action to eliminate or reduce the risk are listed in columns 1 and 2 of 5.2, Table 1. In addition, the manufacturer shall carry out a plant-related risk assessment, including interfaces to auxiliary equipment, according to EN ISO 12100:2010, Clause 4 to identify any other significant hazard of the machine/equipment. Significant hazards identified in this plant-related risk assessment but not dealt with in this standard shall be reduced by applying the principles of EN ISO 12100. 5 Safety requirements and/or measures 5.1 General 5.1.1 Introduction Converter plants conforming to this European Standard shall comply with the safety requirements and/or measures set out in Clause 5 together with those set out in Annexes A, B and C and the information for use as defined in Clause 7. Special consideration shall be given to CO emission due to process transients and/or equipment failure. In general, risks and associated hazards are production and plant-related. The variety of different plants (i.e. different combinations of machines, different boundary conditions) could not be covered in all details in a European Standard. To deal with this fact, an individual risk assessment of the equipment in question shall be carried out (see Clause 4) considering the safety requirements of this European Standard. The manufacturer shall include in the information for use all details required for a safe operating process under normal operating conditions. He shall also describe the specific safety measures in case of special conditions, e.g. maintenance and adjustment work. If in addition to the technical measures further measures for risk reduction by organizational precautions according to EN ISO 12100:2010, Clause 5 are necessary, the manufacturer shall include in the Information for use details of this measures and the necessary information considering the residual risks. 5.1.2 Planning phase The manufacturer shall undertake during planning phase together with the user a layout-check to ensure good placement and safe operation of the converter plant, in particular with regard to: — position of physical emergency systems; — accessibility; — maintenance and cleaning; SIST EN 16774:2016
EN 16774:2016 (E) 14 — movement of parts of the equipment and material; — prevention of emissions hazardous to health at the work stations (e.g. avoiding harmful emissions); — considering ergonomic requirements; — escape routes. 5.1.3 Safety layout A safety layout shall be prepared. The aim of the safety layout is to give information (normally by means of one or more drawings) about the physical position of safety related elements at the converter plant. It is recommended to involve the user of the equipment, e.g. regarding escape routes, fire extinguishing systems, etc. If applicable, the following shall at least be illustrated: — areas where the risk of injury due to contact with liquid metal or slag including spraying is given; — emergency stop buttons; — escape and access routes (if necessary, e.g. for large plants); — areas influenced by low oxygen and/or harmful gases (e.g. CO or asphyxiating gases); — visible/audible warning devices; — safety related marking; — safety signs; — fixed guards (e.g. fences); — moveable guards (e.g. safety doors); — light barriers or safety scanners. The safety layout shall be part of the Instruction for use. 5.1.4 Safety devices and protective measures 18.104.22.168 Safety devices Safety devices and devices with safety function (e.g. limit switches, locking devices) shall be accessible for maintenance. These devices shall be protected against damage and the po