prEN 746-1

Industrial thermoprocessing equipment - Part 1: Common safety requirements for industrial thermoprocessing equipment

This document specifies the general safety requirements common to industrial furnaces and associated processing equipment (TPE).
This document deals with the significant hazards, hazardous situations or hazardous events relevant to TPE, as listed in Annex A, when TPE is used as intended and also under conditions of misuse that are reasonably foreseeable by the manufacturer.
This document specifies the requirements intended to be met by the manufacturer to ensure the safety of persons and property during commissioning, start-up, operation, shut-down, maintenance periods and dismantling, as well as in the event of foreseeable faults or malfunctions that can occur in the equipment.
These general safety requirements apply to all TPE, unless an exception is given in other parts of EN°746 dealing with specific equipment. The provisions of other parts of EN°746 that directly apply to specific types of TPE take precedence over the provisions of this document.
This document is not applicable to blast furnaces, converters (in steel plants), boilers, fired heaters (including reformer furnaces or cracking furnaces) in the petrochemical and chemical industries or equipment not covered under EN°ISO°12100.
This document or parts of this document can be used to blast furnaces, converters (in steel plants), boilers, fired heaters (including reformer furnaces or cracking furnaces) in the petrochemical and chemical industries or equipment not covered under EN°ISO°12100

Industrielle Thermprozessanlagen und dazugehörige Prozesskomponenten - Teil 1: Allgemeine Sicherheitsanforderungen an industrielle Thermoprozesanlagen

Diese Norm spezifiziert die allgemeinen Sicherheitsanforderungen an Industrieöfen und zugehörige Prozessanlagen (TPE).
Dieses Dokument behandelt die bedeutenden Gefährdungen, Gefährdungssituationen oder Gefährdungsereignisse nach Anhang A, die für TPE relevant sind, wenn TPE bestimmungsgemäß und auch unter Bedingungen von durch den Hersteller vernünftigerweise vorhersehbaren Fehlanwendungen verwendet werden.
In Anhang B werden übliche Industrieöfen und zugehörige Prozessanlagen aufgelistet.
Dieses Dokument legt die vom Hersteller zu erfüllenden Anforderungen fest, um die Sicherheit von Personen und Gegenständen, sowohl während der Montage, bei der Inbetriebnahme, während des Betriebes, bei der Stillsetzung, während Instandhaltungszeiten und beim Abbruch, als auch im Falle vorhersehbarer Störungen oder Fehlfunktionen, die in der Anlage auftreten können, sicherzustellen.
Diese allgemeinen Sicherheitsanforderungen gelten für alle TPE, sofern in anderen Teilen der Normenreihe EN 746, die sich mit besonderen Anlagen befassen, keine Ausnahmen angegeben werden. Die Festlegungen in anderen Teilen von EN 746, die direkt auf besondere Arten von TPE anwendbar sind, haben Vorrang vor den Festlegungen in diesem Dokument.
Dieses Dokument ist nicht anwendbar auf
—   Hochöfen, Direktreduktionsöfen und Gaskonverter,
—   Wasserdampf- oder Heißwasserkessel,
—   Feuerungseinrichtungen in Raffinerien sowie in der petrochemischen und chemischen Industrie,
—   thermische Reaktoren zur Schwefelerzeugung („Claus-Prozess“).
Sofern keine andere Norm für Thermoprozessanlagen (TPE) anwendbar ist, gelten die Anforderungen dieser Norm.

Équipements thermiques industriels - Partie 1: Prescriptions générales de sécurité pour les équipements thermiques industriels

Le présent document spécifie les exigences de sécurité générales communes aux fours industriels et à leurs équipements associés (TPE).
Le présent document traite les phénomènes dangereux, situations dangereuses ou événements dangereux significatifs qui sont pertinents pour le TPE, tels qu’énumérés dans l’Annexe A, lorsque le TPE est utilisé normalement et aussi dans les conditions de mauvais usage raisonnablement prévisible par le fabricant.
L’Annexe B fournit une liste des fours industriels courants et de leurs équipements associés.
Le présent document spécifie les exigences destinées à être respectées par le fabricant pour assurer la sécurité des personnes et des biens pendant la mise en service, le démarrage, l'exploitation, l'arrêt, les périodes de maintenance et le démontage, ainsi que dans l'éventualité de pannes ou de défaillances prévisibles qui peuvent se manifester dans les équipements.
Les présentes exigences de sécurité générales s’appliquent à tous les TPE, sauf exception stipulée dans d’autres parties de la série EN 746 traitant d’équipements spécifiques. Les dispositions d’autres parties de l’EN 746 qui s’appliquent directement aux types spécifiques de TPE prévalent sur les dispositions du présent document.
Le présent document n’est pas applicable aux :
-   hauts-fourneaux, fours à réduction directe et convertisseurs de gaz ;
-   chaudières à vapeur et à eau chaude ;
-   appareils de chauffage dans les industries du raffinage, pétrochimiques et chimiques ;
-   réacteurs thermiques au soufre (« fours Claus »).
Tant qu’aucune autre norme n’est applicable aux équipements thermiques (TPE), les exigences de la présente norme sont applicables.

Industrijska termoprocesna oprema - 1. del: Splošne varnostne zahteve za industrijsko termoprocesno opremo

General Information

• Status: Not Published
• Publication Date: 25-Oct-2021
• Withdrawal Date: 25-Apr-2022
• ICS: 25.180.01 - Industrial furnaces in general
• Technical Committee: CEN/TC 186 - Industrial thermoprocessing - Safety
• Drafting Committee: CEN/TC 186/WG 1 - Industrial furnaces and heating equipment - Common safety requirements
• Current Stage: 4098 - Decision to abandon - Enquiry
• Completion Date: 31-Mar-2021
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: oSIST prEN 746-1:2020 - Industrial thermoprocessing equipment - Part 1: Common safety requirements for industrial thermoprocessing equipment

Relations

• Revises: EN 746-1:1997+A1:2009 - Industrial thermoprocessing equipment - Part 1: Common safety requirements for industrial thermoprocessing equipment
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2020
Industrijska termoprocesna oprema - 1. del: Splošne varnostne zahteve za
industrijsko termoprocesno opremo
Industrial thermoprocessing equipment - Part 1: Common safety requirements for
industrial thermoprocessing equipment
Industrielle Thermoprozessanlagen und dazugehörige Prozesskomponenten -
Sicherheitsanforderungen - Teil 1: Allgemeine Sicherheitsanforderungen an industrielle
Thermoprozessanlagen
Équipements thermiques industriels - Partie 1: Prescriptions générales de sécurité pour
les équipements thermiques industriels
Ta slovenski standard je istoveten z: prEN 746-1
ICS:
25.180.01 Industrijske peči na splošno Industrial furnaces in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2020
ICS 25.180.01 Will supersede EN 746-1:1997+A1:2009
English Version
Industrial thermoprocessing equipment - Part 1: Common
safety requirements for industrial thermoprocessing
equipment
Équipements thermiques industriels - Partie 1: Industrielle Thermoprozessanlagen und dazugehörige
Prescriptions générales de sécurité pour les Prozesskomponenten - Sicherheitsanforderungen - Teil
équipements thermiques industriels 1: Allgemeine Sicherheitsanforderungen an industrielle
Thermoprozessanlagen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 186.
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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 746-1:2020 E
worldwide for CEN national Members.

Contents
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 8
4 Safety requirements and/or protective measures . 8
4.1 General . 8
4.1.1 Requirements . 8
4.1.2 General design and construction requirements . 9
4.2 Mechanical safety . 11
4.2.1 General . 11
4.2.2 Crushing . 11
4.2.3 Shearing . 12
4.2.4 Entanglement. 12
4.2.5 Drawing-in . 12
4.2.6 Impact . 12
4.2.7 High-pressure fluid ejection . 12
4.2.8 Ejection of parts . 13
4.2.9 Slip/trip . 13
4.2.10 Falls . 13
4.2.11 Transport . 13
4.3 Electrical safety . 13
4.3.1 Electrical equipment of TPE . 13
4.3.2 Electroheat installations/equipment . 14
4.4 Thermal and cryogenic safety . 14
4.4.1 General . 14
4.4.2 Contact with hot/cold surfaces . 14
4.4.3 Fire/explosion . 14
4.4.4 Ejection of hot particles, workpieces and process liquids . 16
4.4.5 Thermal stress and other physiological effects . 16
4.5 Noise . 16
4.5.1 General . 16
4.5.2 Interference with communications . 17
4.6 Vibration . 17
4.7 Radiation safety . 17
4.7.1 General . 17
4.7.2 Non-ionizing radiation . 17
4.7.3 Ionizing radiation. 18
4.8 Materials and substances processed, used or exhausted . 18
4.8.1 General . 18
4.8.2 Harmful by-products . 18
4.8.3 Fire/explosion . 18
4.9 Ergonomics . 19
4.10 Hazard combination . 19
4.11 Malfunction . 19
4.11.1 Failure of power supply and auxiliary fluids . 19
4.11.2 Errors of fitting/assembly during installation. 19
4.11.3 Effect of malfunction of control system/component safety devices . 19
4.12 Missing and incorrectly fitted safety devices . 20
4.12.1 General . 20
4.12.2 Power supply disconnection devices . 20
5 Verification . 20
6 Information for use . 23
6.1 General requirements . 23
6.2 Location and nature of the information for use . 24
6.3 Signals and warning devices . 24
6.3.1 General . 24
6.3.2 Marking . 24
6.3.3 Personnel protection . 25
6.3.4 Warning signs . 25
6.4 Instruction handbooks/manuals . 25
Annex A (informative) List of significant hazards . 27
Annex B (informative) List of common industrial furnaces and associated processing
equipment . 38
B.1 Metallurgical and metal-working plants . 38
B.2 Glass-making plants . 39
B.3 Ceramic-manufacturing plants . 39
B.4 Cement-, lime- and gypsum-manufacturing plants . 40
B.5 Chemical/petrochemical plants . 40
B.6 Waste incineration . 41
B.7 Other industries . 41
Annex C (informative) Typical test report .
...