SIST EN 13355:2005
(Main)Coating plants - Combined booths - Safety requirements
Coating plants - Combined booths - Safety requirements
This document is applicable to combined booths for the application of organic liquid coating materials by an operator with maximum drying temperature of 100 °C and deals with all hazards significant for combined booths, when they are used as intended and under the conditions foreseen by the manufacturer (see clause 4).
To the extent of this document, a combined booth is considered an assembly of the following equipment:
- forced ventilation by one or more fans,
- ventilation air heating system (e. g. heat exchanger or burner),
- power driven dampers, forced ventilation ducting,
- dry air filtering and/or wet air washing systems,
- automatic fire extinguishing equipment and additional specific electrical equipment,
- control and power circuits joined together for the spraying and drying process of liquid coating material in a space totally enclosed provided with forced ventilation.
- working pit, in special case.
This document does not cover:
a) booths for automatic spraying, powder spray booths, open booths, and portable heaters.
b) design of the building foundations upon which a booth is installed;
c) the civil engineering and building design where a booth is constructed as, or to use part of, a new or existing building;
d) spraying equipment (see EN 1953), automatic devices for spraying systems like robots (see EN 775) or reciprocators or similar systems, conveyors, lifts and continuous handling equipment and systems (see EN 619).
This document is not applicable to combined booths which are manufactured before the date of publication of this standard by CEN.
Beschichtungsanlagen - Kombinierte Spritz- und Trocknungskabinen - Sicherheitsanforderungen
Dieses Dokument gilt für kombinierte Kabinen zum Auftragen von organischen flüssigen Beschichtungsstoffen durch Bedienungspersonen bei einer höchsten Trocknungstemperatur von 100 °C und behandelt alle signifikanten Gefährdungen, die auf kombinierte Kabinen zutreffen, wenn sie bestimmungsgemäß und entsprechend den vorhersehbaren Bedingungen des Herstellers verwendet werden (siehe Abschnitt 4).
Im Sinne dieses Dokument ist eine kombinierte Kabine ist eine Gesamtheit der folgenden Ausrüstung:
- technische Lüftung durch einen oder mehrere Ventilator(en),
- Heizsystem für die technische Lüftung (z.B. Wärmetauscher oder Brenner),
- kraftbetriebene Drossel- und Umschaltklappen,
- Trockenluftfilter- und/oder Luft Nassreinigungssysteme,
- automatische Brandlöscheinrichtung elektrische Ausrüstung,
- Steuer- und Energiekreise, die zum Auftragen und Trocknen der flüssigen Beschichtungsstoffe in einem mit einer technischen Lüftung ausgestatteten geschlossenen Raum zusammengefügt sind,
- in besonderen Fällen: Arbeitsgrube.
Dieses Dokument gilt nicht für:
a) Spritzkabinen mit automatischen Spritzsystemen, Spritzkabinen für organische Pulverlacke (Pulverbeschichtungskabinen), offene Spritzkabinen (Spritzstände und -wände) und ortsbewegliche Heizeinrichtungen,
b) Gestaltung und Konstruktion von Fundament und Gebäude, wo die kombinierte Kabine aufgestellt ist;
c) Bauwesen und Architektur, wenn die Kabine als Teil eines neuen oder bereits vorhandenen Gebäudes gestaltet und konstruiert ist;
d) Spritzeinrichtungen (siehe EN 1953), automatische Einrichtungen für Spritzsysteme, z.B. Roboter (siehe EN 775) oder Bewegungseinrichtungen oder ähnliche Systeme, Förderer, Hubeinrichtungen und Stetigförderer (siehe EN 619)..
Dieses Dokument gilt nicht für kombinierte Kabinen, die hergestellt würden, bevor CEN dieses Dokument veröffentlichte.
Installations d'application - Cabines mixtes d'application et de séchage - Prescriptions de sécurité
Le présent document est applicable aux cabines mixtes utilisées pour l'application de produits de revetement organiques liquides par un opérateur, avec séchage a une température maximum de 100 °C ; elle traite de tous les phénomenes dangereux significatifs spécifiques des cabines mixtes lorsqu'elles sont utilisées normalement et dans les conditions prévues par le constructeur (voir Article 4).
Dans le cadre du présent document, une cabine mixte est considérée comme un assemblage des équipements suivants :
- ventilation forcée via un ou plusieurs ventilateurs ;
- systeme de chauffage de l'air de ventilation (par exemple, échangeur de chaleur, bruleur) ;
- registres motorisés, systeme de gaines pour la ventilation forcée ;
- systeme de filtration d'air sec et/ou d'assainissement d'air humide ;
- équipement automatique d'extinction d'incendie et équipement électrique spécifique supplémentaire ;
- circuits de commande et de puissance combinés pour les processus de pulvérisation et de séchage des produits de revetement liquide dans un espace totalement clos doté d'une ventilation forcée ;
- fosse de travail, dans des cas spéciaux.
Le présent document n'est pas applicable :
a) aux cabines de pulvérisation automatique, aux cabines de poudrage, aux cabines ouvertes et aux appareils de chauffage mobiles ;
b) a la conception des fondations sur lesquelles est installée la cabine ;
c) a la conception architecturale des bâtiments neufs ou anciens utilisés partiellement comme cabines ;
d) aux équipements de pulvérisation (voir EN 1953), aux dispositifs automatiques pour les systemes de pulvérisation comme les robots industriels (voir EN 775) ou les appareils a mouvements de va-et-vient ou systemes similaires, les convoyeurs, les appareils de levage et les systemes et équipements de manutention continue (voir EN 619).
La présent document ne s'applique pas aux cabines mixtes fabriquées avant la date de publication de cette norme par le CEN.
Premazne naprave - Kombinirane kabine za brizganje in sušenje – Varnostne zahteve
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 13355:2005
01-marec-2005
Premazne naprave - Kombinirane kabine za brizganje in sušenje – Varnostne
zahteve
Coating plants - Combined booths - Safety requirements
Beschichtungsanlagen - Kombinierte Spritz- und Trocknungskabinen -
Sicherheitsanforderungen
Installations d'application - Cabines mixtes d'application et de séchage - Prescriptions de
sécurité
Ta slovenski standard je istoveten z: EN 13355:2004
ICS:
87.100 Oprema za nanašanje Paint coating equipment
premazov
SIST EN 13355:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 13355:2005
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SIST EN 13355:2005
EUROPEAN STANDARD
EN 13355
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2004
ICS 87.100
English version
Coating plants - Combined booths - Safety requirements
Installations d'application - Cabines mixtes d'application et Beschichtungsanlagen - Kombinierte Spritz- und
de séchage - Prescriptions de sécurité Trocknungskabinen - Sicherheitsanforderungen
This European Standard was approved by CEN on 22 November 2004.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13355:2004: E
worldwide for CEN national Members.
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EN 13355:2004 (E)
Contents
Page
Foreword.3
Introduction .4
1 Scope .5
2 Normative references .6
3 Terms and definitions .7
4 List of significant hazards .10
5 Safety requirements and/or measures .13
6 Verification of the safety measure and/or measures .22
7 Information for use .25
Annex A (normative) Determination of concentration of flammable solvents in terms of LEL (spraying
mode) .29
Annex B (normative) Measurement of air velocities .32
Annex C (normative) Noise test code.37
Annex D (informative) Classification of material’s reaction to the fire – National standards .40
Annex E (informative) References to national exposure limit values .41
Annex F (informative) Equivalence between zone description and categories of ignition protection.42
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 98/37/EC .43
Bibliography .44
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Foreword
This document (EN 13355:2004) has been prepared by Technical Committee CEN/TC 271 “Surface treatment
equipment — Safety”, 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 June 2005, and conflicting national standards shall be withdrawn at the latest by
June 2005.
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) 98/37/EC and 94/9/EC.
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
This document is part of a series of standards in the area of safety for development and construction of machines
and plants for the coating of surfaces with organic substances (paints, varnishes and similar products).
This document is mainly based on EN 12215 and EN 1539.
NOTE: Although a spray booth, as an integral whole, formally does not fall under the scope of the ATEX Directive 94/9/EC,
the document is based upon a fundamental risk analysis according to this directive.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark,
Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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Introduction
This document is a C-type standard as stated in EN ISO 12100.
The machinery concerned and the extent to which hazards, hazardous situations and events are covered are
indicated in the scope of this document.
When provisions of this type C standard are different from those which are stated in type A or B standards, the
provisions of this type C standard take precedence over the provisions of the other standards, for machines that
have been designed and built according to the provisions of this type C standard.
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1 Scope
This document is applicable to combined booths for the application of organic liquid coating materials by an
operator with maximum drying temperature of 100 °C and deals with all hazards significant for combined booths,
when they are used as intended and under the conditions foreseen by the manufacturer (see clause 4).
To the extent of this document, a combined booth is considered an assembly of the following equipment:
forced ventilation by one or more fans,
ventilation air heating system (e. g. heat exchanger or burner),
power driven dampers, forced ventilation ducting,
dry air filtering and/or wet air washing systems,
automatic fire extinguishing equipment and additional specific electrical equipment,
control and power circuits joined together for the spraying and drying process of liquid coating material in a
space totally enclosed provided with forced ventilation.
working pit, in special case.
This document does not cover:
a) booths for automatic spraying, powder spray booths, open booths, and portable heaters.
b) design of the building foundations upon which a booth is installed;
c) the civil engineering and building design where a booth is constructed as, or to use part of, a new or existing
building;
d) spraying equipment (see EN 1953), automatic devices for spraying systems like robots (see EN 775) or
reciprocators or similar systems, conveyors, lifts and continuous handling equipment and systems
(see EN 619).
This document is not applicable to combined booths which are manufactured before the date of publication of this
standard by CEN.
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2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references,
only the edition cited applies. For undated references, the latest edition of the referenced document (including any
amendments) applies.
EN 418, Safety of machinery — Emergency stop equipment, functional aspects — Principles for design.
EN 525, Non-domestic direct gas-fired forced convection air heaters for space heating not exceeding a net heat input
of 300 kW.
EN 563, Safety of machinery — Temperatures of touchable surfaces — Ergonomics data to establish temperature
limit values for hot surfaces.
EN 746-1, Industrial thermoprocessing equipment — Part 1: Common safety requirements for industrial
thermoprocessing equipment.
EN 746-2, Industrial thermoprocessing equipment — Part 2: Safety requirements for combustion and fuel handling
systems.
EN 954-1, Safety of machinery — Safety related parts of control systems — Part 1: General principles for design.
EN 971-1:1996, Paints and varnishes — Terms and definitions for coating materials — Part 1: General terms
EN 981, Safety of machinery — System of auditory and visual danger and information signals.
EN 982, Safety of machinery — Safety requirements for fluid power systems and their components — Hydraulics.
EN 983, Safety of machinery — Safety requirements for fluid power systems and their components — Pneumatics.
EN 1037, Safety of machinery — Prevention of unexpected start-up.
EN 1088, Safety of machinery — Interlocking devices associated with guards — Principles for design and selection.
EN 1127-1:1997, Explosive atmospheres — Explosion prevention and protection — Part 1: Basic concepts and
methodology.
EN 1539:2000; Dryers and ovens, in which flammable substances are released — Safety requirements.
EN 1953, Atomising and spraying equipment for coating materials - Safety requirements
prEN 12753; Thermal cleaning systems for exhaust gas from surface treatment equipment — Safety requirements.
EN 12433-1, Industrial, commercial and garage doors and gates — Terminology — Part 1: Types of doors.
EN 12433-2, Industrial, commercial and garage doors and gates — Terminology — Part 2: Parts of doors.
EN 12445, Industrial, commercial and garage doors and gates — Safety in use of power operated doors — Test
methods.
EN 12453, Industrial, commercial and garage doors and gates — Safety in use of power operated doors —
Requirements.
EN 12635, Industrial, commercial and garage doors and gates — Installation and use.
EN 12978, Industrial, commercial and garage doors and gates — Safety devices for power operated doors and gates
- — Requirements and test methods.
EN 13463-1:2001; Non-electrical equipment for potentially explosive atmospheres — Part 1: Basic method and
requirements
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EN 13463-5, Non-electrical equipment intended for use in potentially explosive atmospheres — Part 5: Protection by
constructional safety "c".
EN 13478, Safety of machinery — Fire prevention and protection.
prEN 14986, Design of fans working in potentially explosive atmospheres.
EN 60079-0, Electrical apparatus for explosive gas atmospheres – Part 0: General requirements (IEC 60079-0:2004).
EN 60079-15, Electrical apparatus for explosive gas atmospheres – Part 15: Type of protection “n” (IEC 60079-
15:2001, modified).
EN 60204-1:1997, Safety of machinery — Electrical equipment of machines — Part 1: General requirements (IEC
60204-1:1997).
EN 60529, Degrees of protection provided by enclosures (IP code).
EN 61000-6-1, Electromagnetic compatibility (EMC) — Part 6-1: Generic standards; Immunity for residential,
commercial and light-industrial environments (IEC 61000-6-1:1997, modified).
EN 61000-6-3, Electromagnetic compatibility (EMC) — Part 6-3: Generic standards; Emission standard for residential,
commercial and light-industrial environments (IEC 61000-6-3:1996, modified).
EN 61000-6-4, Electromagnetic compatibility (EMC) — Part 6-4: Generic standards; Emission standard for industrial
environments (IEC 61000-6-4:1997, modified).
EN ISO 3746, Acoustics — Determination of sound power levels of noise sources using sound pressure — Survey
method using an enveloping measurement surface over a reflecting plane (ISO 3746:1995)
EN ISO 4871, Acoustics — Declaration and verification of noise emission values of machinery and equipment (ISO
4871:1996).
EN ISO 11202, Acoustics — Noise emitted by machinery and equipment — Measurement of emission sound
pressure levels at a work station and at other specified positions — Survey method in situ (ISO 11202:1995).
EN ISO 12100-1, Safety of machinery - Basic concepts, general principles for design - Part 1: Basic terminology,
methodology (ISO 12100-1:2003)
EN ISO 12100-2:2003, Safety of machinery - Basic concepts, general principles for design - Part 2: Technical
principles (ISO 12100-2:2003)
EN ISO 14122-2, Safety of machinery — Permanent means of access to machinery — Part 2: Working platforms and
walkways (ISO 14122-2:2001).
EN ISO 14122-3, Safety of machinery — Permanent means of access to machinery — Part 3: Stairs, stepladders and
guard-rails (ISO 14122-3:2001).
EN ISO 14122-4, Safety of machinery — Permanent means of access to machinery — Part 4: Fixed ladders (ISO
14122-4:2004).
3 Terms and definitions
For the purpose of this document, the terms and definitions given in EN 12100-1:2003 and the following apply.
3.1
combined booth
assembly of linked components such as fan(s), ventilation air heating system (e. g. heat exchanger or burner),
power driven dampers, forced ventilation ducting, dry air filtering and/or wet air washing systems, automatic fire
extinguishing equipment and additional specific electrical equipment, control and power circuits joined together for
the spraying and drying process of liquid coating material in a space totally enclosed provided with a forced
ventilation
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3.2
working pit
ground excavation, illuminated and ventilated in which the operator works while painting the underside of an item
3.3
organic liquid coating material
organic product, in liquid form, that when applied to a substrate forms a film possessing protective, decorative
and/or specific technical properties, e.g.: paints, varnishes, including their solvents and thinners (see EN 971-1)
3.4
solvent
single liquid, or blends of liquid, volatile under specified drying conditions, and in which the binder is completely
soluble (see 1.4.5 of EN 971-1:1996)
NOTE Solvents are also contained in liquids used as cleaning or washing agents.
3.5
spraying
application of coating material on an item within the combined booth by pneumatic, airless, electrostatic or
combination of these spraying systems
3.6
drying
evaporation of liquids from the materials being processed (see 3.5 of EN 1539:2000).
3.7
curing
Transformation of a liquid, paste or powder coating material into a finished solid material (see 3.8 of EN 1539:2000)
NOTE Also known as gelling, through curing or through drying.
3.8
forced ventilation
air circulation achieved by one or several fans
3.9
recirculated air
air extracted from the volume and reintroduced into it
3.10
air cleaning (filtering system)
Filtering system used for introducing clean air into the booth and cleaning contaminated air extracted from the
combined booth
3.11
flammable (combustible) substances
substance in the form of gas, vapour, liquid, solid or mixtures of these, able to undergo an exothermic reaction with
air when ignited (see 3.1 of EN 1127-1:1997)
NOTE "Combustible materials" and "flammable substances" are equivalently used terms in this standard. Examples are
paint aerosols and solvents.
3.12
explosive atmosphere
mixture with air, under atmospheric conditions, of flammable substance(s) in the form of gas, vapour, mist or dust,
in which after ignition has occurred, combustion spreads to the entire unburned mixture (see EN 1127-1)
3.13
lower explosion limit (LEL)
lower limit of the range of concentration of a combustible in air over which an explosion can occur (3.8 and 3.13 of
EN 1127-1:1997)
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NOTE ”Explosion limit” and ”Ignition limit” are equivalent. In accordance with international usage, only the term ”explosion
limit" is used in this standard.
3.14
total space
net volume within the booth during spraying and drying processes which may contain released substances. It
includes all sections of the combined booth recirculation system(s) and ends at the outlet connection to the external
exhaust
NOTE It does not include any items loaded into the combined booth, supports, transport systems or thermal cleaning
systems (see prEN 12753).
3.15
hazardous areas
areas where hazards due to explosive atmosphere may exist. The probability of occurrence of explosive
atmosphere is classified in zones
3.15.1
zone 0
place in which an explosive atmosphere consisting of a mixture with air of flammable substances in the form of gas,
vapour or mist is present continuously or for long periods or frequently (see 6.3.2 of EN 1127-1:1997)
3.15.2
zone 1
place in which an explosive atmosphere consisting of a mixture with air of flammable substances in the form of gas,
vapour or mist is likely to occur in normal operation occasionally (see 6.3.2 of EN 1127-1:1997)
3.15.3
zone 2
place in which an explosive atmosphere consisting of a mixture with air of flammable substances in the form of gas,
vapour or mist is not likely to occur in normal operation but, if it does occur, will persist for a short period only (see
6.3.2 of EN 1127-1:1997)
3.16
Equipment category
3.16.1
Equipment Group II Category 1
equipment in this category is intended for use in areas in which explosive atmospheres caused by mixtures of air
and gases, vapours or mists are present continuously for long periods or frequently (see 3.2.3 of EN 13463-1:2001)
NOTE Equipment of category 1 is suitable for use in zone 0.
3.16.2
Equipment Group II Category 2
equipment in this category is intended for use in areas in which explosive atmospheres caused by mixtures of air
and gases, vapours or mists are likely to occur (see 3.2.4 of EN 13463-1:2001)
NOTE Equipment of category 2 is suitable for use in zone 1.
3.16.3
Equipment Group II Category 3
equipment in this category is intended for use in areas in which explosive atmospheres caused by mixtures of air
and gases, vapours or mists are unlikely to occur, or, if they do occur, are likely to do so only in frequently and for a
short period only (see 3.2.5 of EN 13463-1:2001)
NOTE Equipment of category 3 is suitable for use in zone 2.
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3.17
exposure limits
concentration limits of hazardous substances in air required by worker health legislation
NOTE Limits are different according to the countries (see Annex E).
3.18
maximum drying temperature
upper limit of circulated air temperature within the working area for which the combined booth is designed
3.19
ventilation air heating system
heat generating and air heat exchanger system direct or indirect, which may include burner, combustion chamber,
heat exchanger, fan(s), inlet, exhaust and recirculation ducts, enclosures and ancillaries, measuring and control
devices
4 List of significant hazards
4.1 General
This clause contains 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.
All hazards generated by spraying equipment for liquid paint and varnish and their ancillary devices are covered by
EN 1953.
NOTE Information on the method of risk analysis is given in EN 1050.
4.2 Mechanical hazards
4.2.1 Shearing, crushing and drawing in
These hazards are related to:
unexpected actuation of conveyor (whilst loading the combined booth)
fans (e.g. injuries caused by after-running of fan blades) and air change valves for the combined booth
damper adjusters (power driven dampers),
moving parts of combined booth (e.g. doors, gates and hoods).
4.2.2 Entrapment of operators
These hazards are related to:
obstacles or obstructions which can impede evacuation from the combined booth including any working pit in
case of mechanical accident or the occurrence of fire;
accidental significant lowering of pressure inside the combined booth (i.e.: obstruction of air inlet) capable of
clamping the doors by mechanical deformation of the structure of the combined booth;
increasing the door opening effort beyond human capability.
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4.2.3 Hazards resulting from the operator slipping or falling:
These hazards are related to:
ladders, gangways, platform or stairs;
floor gratings;
slippery floors;
These hazards may be increased as a result of poor lighting.
4.3 Electrical hazards
4.3.1 Electrical shock (by direct or indirect contact)
These hazards are related to:
electrically live parts that are non insulated for operational reasons (for instance in electrostatic devices);
live parts when insulation is damaged by contact with solvents or by mechanical means.
4.3.2 External influence on electrical equipment
These hazards are related to:
interaction of the electrostatic high voltage equipment elements of the control and safety systems which can
cause dangerous malfunctions, e. g. short circuits on electronic safety circuits, entrance guards, alarm units.
4.4 Thermal hazards
These hazards are related to:
contact with hot surfaces within easy reach.
4.5 Hazards generated by noise
These hazards are related to combined booths and can be present inside as well as outside the booth.
They can be generated by noises emitted for instance by:
fans;
excessive air velocity in ducts and accessories ;
wet air washing systems;
air operated equipment ( nozzles of atomising and spraying equipment, pumps, valves.).
4.6 Hazards generated by radiation
These hazards are related to the use of infra-red radiation (IR) causing
damage to the eyes,
burning.
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4.7 Hazards resulting from dangerous substances
4.7.1 Contact with/or absorption of, fluids (paints, solvents, hydraulic and thermal fluid) which are dangerous to
health causing damage to the skin or eyes or dermatitis or allergies.
4.7.2 Inhalation of aerosols and solvent vapours released by organic liquid coating materials.
4.7.3 Inhalation of toxic gases released from the heating device (e.g. heating and combustion gases).
4.7.4 Inhalation of dangerous gases, vapours emitted by automatic fire extinguishing equipment.
4.8 Fire and explosion hazards
4.8.1 Fire hazards
Fire hazards are related to combustible or flammable substances coming in contact with ore are ignited by:
hot surfaces (e.g. heating systems and electrical equipment);
sparks created by mechanically induced energy (e.g. fans and/or conveyors);
electrostatic and atmospheric discharges;
electrical sparks;
welding and other heating sources used during maintenance operations.
NOTE Examples of flammable substances are:
coating materials, solvents or thinners;
elements of construction;
condensates and deposits of paint in the insulation materials, pits , exhaust ducts and filters;
fuels used in heating and drying system burners;
flammable liquid products used for cleaning;
petrol vapours from a vehicle fuel tank (in case of vehicle refinishing).
4.8.2 Explosion hazards
Explosion hazards are related to an increase of the concentration of flammable substances in air exceeding the
lower explosion limit (LEL) and coming in contact with or are ignited by
hot surfaces (e.g. heating systems and electrical equipment);
sparks created by mechanically induced energy (e.g. fans and/or conveyors);
electrostatic and atmospheric discharges;
electrical sparks;
welding and other heating sources used during maintenance operations.
NOTE Examples of flammable substances which increase concentration above the lower explosion limit:
solvent vapours from the spraying and drying process;
gases from fuels and/or products of combustion of the heating system;
gases released from deposits;
combustible heating gases;
petrol vapours.
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4.9 Hazards caused by failure of the energy supply and malfunction of the control system
4.9.1 Failure of energy supplies can lead to:
Loss of monitoring functions resulting in hazardous reduction of ventilation flow rate;
unexpected shutdown of control devices;
loss of monitoring functions resulting in a hazardous increase of solvent concentration;
loss of monitoring functions resulting in a hazardous reduction of recirculation flow rate;
loss of lighting.
4.9.2 Hazards due to failure or malfunction of the control system (unexpected start-up) which can lead to:
Incorrect position of dampers resulting in a hazardous increase of solvent concentration;
wrong sequence of essential control functions resulting in a start of heating before forced ventilation is
activated;
malfunction of temperature monitoring devices resulting in a hazardous increase of the temperatures of the
heating system.
4.10 Hazards caused by emergency stop devices
The use of emergency stop devices can lead to an interruption of the exhaust flow rate or of the recirculation flow
rate and can have as a consequence hazardous reduction in the forced ventilation flow rate, hazardous increase of
concentration of flammable substances (see 4.8.2).
5 Safety requirements and/or measures
5.1 General
Machinery shall comply with the safety requirements and/or protective measures of this clause. In addition, the
machine shall be designed according to the principles of EN ISO 12100 for hazards relevant but not significant
which are not dealt with by this document (e.g. sharp edges).
NOTE Hazards generated by spraying equipment for organic liquid coating materials and their ancillary devices are
covered by EN 1953.
5.2 Mechanical
5.2.1 Shearing, crushing and drawing in
The design shall avoid injury due to shearing, crushing or drawing-in by movement of machinery and/or parts of
equipment. Contact with dangerous moving parts shall be prevented by the following measures:
for fans and automated dampers adjusters: fitting of distance guards;
for power operated doors: mechanical or light sensitive protective devices;
for doors, gates and hoods: (re)movable guards, hydraulically, pneumatically or electrically interlocked with the
hazardous movement or event.
If automatic devices for spraying systems like robots or reciprocators or similar systems are installed, access to
dangerous areas requires doors or other protective devices (mechanical or light sensitive) interlocked with the
hazardous movement or event (see also 5.8.2.5).
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SIST EN 13355:2005
EN 13355:2004 (E)
NOTE Robots are dealt with in EN 775.
5.2.2 Entrapment of persons
Combined booths shall be designed so that in case of an emergency all persons entrapped can find their way out
of the combined booth in the quickest possible time, without being hindered by obstructions.
NOTE Auxiliary use of robots or similar automatic devices is excluded from the scope (see scope, exclusions under d)).
The doors provided for personnel:
shall be capable of being opened from inside and outside
shall be capable of being opened from inside by a mere push, independent of the air pressure (high or low)
within the combined booth,
shall be self-closing,
shall have a minimum 800 mm width and minimu
...
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