kSIST FprEN 13289:2018

SLOVENSKI STANDARD
oSIST prEN 13289:2016
01-januar-2016
Stroji za izdelavo testenin - Sušilniki in ohlajevalniki - Varnostne in higienske
zahteve
Pasta processing plant - Dryers and coolers - Safety and hygiene requirements
Maschinen zur Teigwarenherstellung - Trockner und Kühler - Sicherheits- und
Hygieneanforderungen
Installations de production de pâtes - Séchoirs et refroidisseurs - Prescriptions relatives à
la sécurité et à l’hygiène
Ta slovenski standard je istoveten z: prEN 13289
ICS:
67.260 Tovarne in oprema za Plants and equipment for the
živilsko industrijo food industry
oSIST prEN 13289:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 13289:2016
oSIST prEN 13289:2016
DRAFT
EUROPEAN STANDARD
prEN 13289
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2015
ICS 67.260 Will supersede EN 13289:2001+A1:2013
English Version
Pasta processing plant - Dryers and coolers - Safety and
hygiene requirements
Maschinen zur Teigwarenherstellung - Trockner und
Kühler - Sicherheits- und Hygieneanforderungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 153.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
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: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13289:2015 E
worldwide for CEN national Members.

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prEN 13289:2015 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 8
4 List of significant hazards . 9
4.1 General . 9
4.2 Mechanical hazards . 9
4.2.1 General . 9
4.2.2 Protruding parts . 11
4.2.3 Moving parts . 11
4.2.4 Movable parts . 11
4.2.5 Openings in the insulating booth . 11
4.2.6 Fluid ejection hazards . 12
4.2.7 Hazards due to unexpected start-up . 12
4.3 Electrical hazards . 12
4.4 Thermal hazards . 12
4.5 Noise hazards. 12
4.6 Hazards due to slip, trip and fall . 13
4.7 Hazards due to neglecting hygienic principles . 13
5 Safety requirements and/or protective measures . 13
5.1 General . 13
5.2 Mechanical hazards . 13
5.2.1 Protruding parts . 13
5.2.2 Moving parts . 14
5.2.3 Movable parts . 15
5.2.4 Openings in the insulating booth . 15
5.2.5 Fluid ejection . 15
5.2.6 Unexpected start-up . 15
5.3 Electrical hazards . 17
5.3.1 General . 17
5.3.2 Protection against electric shock . 17
5.3.3 Degrees of protection . 17
5.3.4 Cable section and colours . 18
5.3.5 Safety requirements related to electromagnetic phenomena . 18
5.4 Thermal hazards . 18
5.5 Noise reduction . 18
5.6 Protective measures against slip, trip and fall . 18
5.7 Protective measures against hazards due to neglecting of hygienic principles . 18
5.7.1 General . 18
5.7.2 Food area . 18
5.7.3 Splash area. 19
5.7.4 Non-food area . 19
6 Verification of the safety requirements and/or measures . 20
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7 Information for use . 21
7.1 Technical information . 21
7.2 Indicators. 22
7.2.1 General . 22
7.2.2 Warning signs for residual hazard . 22
7.3 Marking . 22
Annex A (normative) Principles of design to ensure the cleanability of machinery . 24
A.1 Terms and definitions . 24
A.2 Material of construction . 24
A.2.1 Type of materials . 24
A.2.2 Surface conditions . 24
A.3 Design . 25
A.3.1 Connections of internal surfaces . 25
A.3.2 Surface assemblies and overlaps . 29
A.3.3 Fasteners. 34
A.3.4 Machines on the floor . 35
A.3.5 Ventilation openings . 37
A.3.6 Hinges . 37
A.3.7 Control panel . 38
Annex B (normative) Noise test code – Grade 2 or 3 . 39
B.1 Terms and definitions . 39
B.2 Installation and mounting conditions . 39
B.3 Operating conditions . 39
B.4 Measurements . 39
B.5 Emission sound pressure level determination . 39
B.6 Sound power level determination . 40
B.7 Measurement uncertainties . 40
B.8 Information to be recorded . 41
B.9 Information to be reported . 41
B.10 Declaration and verification of noise emission value . 41
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC on Machinery . 42
Bibliography . 43

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prEN 13289:2015 (E)
European foreword
This document (prEN 13289:2015) has been prepared by Technical Committee CEN/TC 153
“Machinery intended for use with foodstuffs and feed”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13289:2001+A1:2013.
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 2006/42/EC.
For relationship with EU Directive 2006/42/EC, see informative Annex ZA, which is an integral part of
this document.
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Introduction
This draft European Standard is a type C standard as stated in EN ISO 12100.
The machinery concerned and the extent to which hazards, hazardous situations and hazardous 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.
Complementary to the hygiene requirements common to all food processing machines, specific
requirements for cleanability and sanitation of the machines in the scope are formulated.
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1 Scope
This draft European Standard applies to shaker pre-dryers, belt dryers, rotary dryers, nest pasta dryers,
long pasta dryers and coolers (see Clause 3), used in continuous pasta processing plants able to produce
more than 100 kg/h.
This draft European Standard specifies the safety requirements for the design, manufacture and
information for use for the machines mentioned above, known with the name of dryers and coolers,
classified as stationary units which cannot be moved when in operation.
This draft European Standard is not applicable to dryers and coolers, static or semiautomatic requiring
manual loading as well as those for special application (i.e. experimental dryers).
Dryers in a pasta plant are machines which reduce moisture by means of warm air ventilation. In the
drying process the use of a cooler might be necessary in order to reduce the temperature, maintaining
constant the correct moisture of the pasta. The cooling can be obtained in the dryer or in a separate
similar machine.
The significant hazards covered by this standard are listed in Clause 4.
These hazards, as well as the measures for their reduction, are described in the present draft European
Standard
Ancillary equipment which is not an integral part of the machinery (e.g. hoppers, conveyors, equipment
used to produce hot or cold fluids, etc.) is not covered by this draft European Standard.
This draft European Standard is not applicable to machines in its scope which are manufactured before
the date of its publication as EN.
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 953:1997+A1:2009, Safety of machinery — Guards — General requirements for the design and
construction of fixed and movable guards
EN 1037:1995+A1:2008, Safety of machinery — Prevention of unexpected start-up
EN 1672-2:2005+A1:2009, Food processing machinery — Basic concepts — Part 2: Hygiene requirements
EN 60204-1:2006, Safety of machinery — Electrical equipment of machines — Part 1: General
requirements (IEC 60204-1:2005)
EN 60332-1 (all parts), Tests on electric and optical fibre cables under fire conditions — Part 1: Test for
vertical flame propagation for a single insulated wire or cable (IEC 60332-1, all parts)
1)
EN 60529:1991 , Degrees of protection provided by enclosures (IP code) (IEC 60529:1989)
EN 60947-5-5, Low-voltage switchgear and controlgear — Part 5-5: Control circuit devices and switching
elements — Electrical emergency stop device with mechanical latching function (IEC 60947-5-5
EN 61310-1, Safety of machinery — Indication, marking and actuation — Part 1: Requirements for visual,
acoustic and tactile signals (IEC 61310-1)

1) This document is currently impacted by the two amendments EN 60529:1991/A1:2000 and EN 60529:1991/A2:2013.
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EN ISO 3744, Acoustics — Determination of sound power levels and sound energy levels of noise sources
using sound pressure — Engineering methods for an essentially free field over a reflecting plane
(ISO 3744)
EN ISO 3746, Acoustics — Determination of sound power levels and sound energy levels of noise sources
using sound pressure — Survey method using an enveloping measurement surface over a reflecting plane
(ISO 3746)
EN ISO 3747, Acoustics — Determination of sound power levels and sound energy levels of noise sources
using sound pressure — Engineering/survey methods for use in situ in a reverberant environment
(ISO 3747)
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, Acoustics — Declaration and verification of noise emission values of machinery and
equipment (ISO 4871)
EN ISO 7731, Ergonomics — Danger signals for public and work areas - Auditory danger signals
(ISO 7731)
EN ISO 9614-1:2009, Acoustics — Determination of sound power levels of noise sources using sound
intensity — Part 1: Measurement at discrete points (ISO 9614-1:1993)
EN ISO 9614-2, Acoustics — Determination of sound power levels of noise sources using sound intensity —
Part 2: Measurement by scanning (ISO 9614-2)
EN ISO 11201, Acoustics - Noise emitted by machinery and equipment - Determination of emission sound
pressure levels at a work station and at other specified positions in an essentially free field over a reflecting
plane with negligible environmental corrections (ISO 11201)
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)
EN ISO 11204, Acoustics — Noise emitted by machinery and equipment — Determination of emission
sound pressure levels at a work station and at other specified positions applying accurate environmental
corrections (ISO 11204)
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, Safety of machinery — Safety-related parts of control systems — Part 1: General
principles for design (ISO 13849-1)
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EN ISO 13850, Safety of machinery — Emergency stop — Principles for design (ISO 13850)
EN ISO 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by
upper and lower limbs (ISO 13857:2008)
EN ISO 14119, Safety of machinery — Interlocking devices associated with guards — Principles for design
and selection (ISO 14119)
EN ISO 14122 (all parts), Safety of machinery — Permanent means of access to machinery (ISO 14122, all
parts)
IEC 60417, Graphical symbols for use on equipment
ISO 447, Machine tools — Direction of operation of controls
ISO 468, Surface roughness — Parameters, their values and general rules for specifying requirements
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 7001, Graphical symbols — Public information symbols
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the
following apply.
3.1
dryer
assembly where the pasta is dried
3.2
shaker pre-dryer
assembly of metal mesh tables (usually in stainless steel) which is made to vibrate by different types of
systems causing the product to advance towards the outlet and which is used for drying short cut pasta
(e.g. macaroni), in the first stages of the process, when the pasta advances in thin layers to allow the
evaporation of great quantities of water (see Figure 1)
3.3
belt dryer
assembly of belts which conveys the pasta and which is used for drying short cut pasta and placed just
after the shaker pre-dryers in the drying line (see Figure 2)
3.4
rotary dryer
assembly of a rotating drum which consists of conveying channels placed along the periphery of the
drum and which, as a rule it is used for small dimension short cut pasta and for pastina (e.g. soup pasta,
see Figure 3)
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3.5
nest pasta dryer
assembly of special containers in which the nest-shaped pasta is conveyed through the dryer frame
3.6
long pasta dryer
assembly in which long cut pasta (e.g. spaghetti) is hung out on sticks which are conveyed through the
dryer
3.7
cooler
final part of the process having the same handling system as the dryer described in 3.1 to 3.6, but with
low inside air temperature in order to reduce the temperature of the pasta; it may be separate from the
dryer
3.8
insulating booth
interface between the process area and the exterior
3.9
movable part
elements other than guards which can be opened or removed
4 List of significant hazards
4.1 General
This clause covers all the hazards, as far as they are considered in this draft European Standard,
identified by risk assessment to be significant for this type of machinery and requiring an action to
eliminate or reduce the risk.
4.2 Mechanical hazards
4.2.1 General
The significant mechanical hazards are:
— crushing hazard;
— cutting or severing hazard;
— entanglement hazard;
— shearing hazard;
— fluid ejection hazard;
— impact hazard;
— trapping hazard.
The examples shown in Figures 1 to 3 illustrate the danger zones associated with these hazards.
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Figure 1 — Shaker pre-dryer
Figure 2 — Belt dryer
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Figure 3 — Rotary dryer
4.2.2 Protruding parts
Parts jutting out of the basic outline beyond the machine frame at low level (e.g. valves and pipes of the
heating, cooling and humidifying plant or cables) may cause a trip hazards with the consequence of
broken bones, see zone 1, Figures 2 and 3. Parts jutting out of the basic outline beside the machine
frame at a middle to high level (e.g. motors or gearbox, valves and pipes of the heating, cooling and
humidifying plant) may cause an impact hazard for body parts and the head with the consequence of
manifold injuries, see zone 1 Figures 2 and 3.
4.2.3 Moving parts
4.2.3.1 Moving parts for pasta conveyance systems, such as sticks, belts, drums, frames, and other
containers, may cause hazards of entanglement, cutting, severing and shearing of fingers, hands, arms
and the body; see zone 2, Figures 1, 2 and 3.
4.2.3.2 Moving parts for driving systems such as chains, gears, shafts etc. may cause hazards of
entanglement, cutting, severing and shearing of fingers or hands; see zone 3, Figures 1, 2 and 3.
4.2.3.3 Fan blades may cause hazards of cutting of fingers, hands, arms or other parts of body.
4.2.3.4 Rotating drums may cause hazards of crushing of the body when falling from supports and
hazards of crushing of the fingers and the hands between driving wheels and the rims.
4.2.3.5 Moving parts of air inlet and outlet gates may cause hazards of cutting or severing of fingers
and hands.
4.2.4 Movable parts
When movable parts, e.g. panels of the insulation booth or guiding plates, are handled they may cause
the hazard of crushing of fingers, arms, feet or other parts of the body and the ejection of hot air, which
may cause injury to the head or other parts of the body; see zone 4 Figures 1, 2 and 3.
4.2.5 Openings in the insulating booth
For the operation of the machine, openings are provided for different purposes:
— inlet and outlet for the product;
— inlets and outlets for fluids, e.g. hot air;
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— sampling;
— cleaning and maintenance operations.
Openings may cause burn hazard due to hot air ejection with the consequence of injuries to hands, arms
and other parts of the body. Depending on the installation access to moving parts may be possible that
may cause a cutting and shearing hazard for fingers and hands.
When entrance doors, hoods or cover panels for cleaning and maintenance operations are handled, this
may cause hazards of crushing, cutting or severing of fingers, arms and other parts of the body.
In case the operator can enter into the machine, he can be trapped and suffer severe injuries due to
mechanical and thermal hazards that may occur if the machine starts up unexpectedly.
4.2.6 Fluid ejection hazards
Leakage of pressurized pipes, including heat exchangers, or leakage of hydraulic drives may cause the
hazard of fluid release, e.g. water, superheated water, steam and diathermic oil (heating system),
hydraulic oil (hydraulic drives) and compressed air, which may cause a burn hazard or impact hazard.
A pressure drop in hydraulic and pneumatic drives caused by leakage may result in dangerous
unexpected movements, e.g. when a movable part of the machine is held in the upper position by
pressure. Fluid release may cause the hazard of foodstuff contamination.
4.2.7 Hazards due to unexpected start-up
Unexpected start-up may cause the hazards of contact with dangerous moving parts and/or contact to
hot surfaces. Hazards that are caused by unexpected start-up can arise if components in safety-related
parts of control systems fail. Failures may occur due to mechanical damage, wrong installation, contact
failure or electronic component failure.
Failures can lead to loss of safety functions, resulting in unexpected start-up of moving parts and of the
heating control system. Failures can lead to loss of safety functions resulting from moving parts not
stopped as expected. When the power supply of an electronic drive system is not disconnected during
maintenance operations by using an enabling device such as a hold-to-run control, an electronic hand
wheel or a joy stick complying with EN 60204-1:2006, 9.2.6 and 10.9, there is a risk of unexpected start-
up with consequential mechanical hazards if the control system malfunctions or responds to an external
disturbance such as electromagnetic interference.
4.3 Electrical hazards
Electrical equipment on the machine can generate a potential electric shock hazard from direct or
indirect contact with live components. This hazard is present in control panels, junction boxes, motor
connectors, electrical resistances and in the electrical components. A hazard from the electrical
equipment may arise if the electrical components inside the cabinet do not withstand the thermal and
climate conditions. An external disturbance such as electromagnetic interference can lead to
malfunction or loss of function of electrical equipment. If liquids, e.g. fluids used for pasta processing or
cleaning agents like water, come into contact with the electrical conductors, there is a risk of electric
shock.
4.4 Thermal hazards
Contact with parts of the dryer reaching high temperatures (e.g. pipelines, valves, etc.) and contact with
hot fluids ejected by the dryer, see 4.2.2, 4.2.3, 4.2.4. The burning hazard will usually continue to exist
for a period of time after power has been disconnected.
4.5 Noise hazards
Noise generated by dryers and coolers can lead to:
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— permanent loss of hearing,
— ringing in the ears,
— fatigue, stress,
— interference with speech communication, acoustic signals.
4.6 Hazards due to slip, trip and fall
Walkways, stairs and gangways may cause slip, trip and fall with possibility of broken bones. Trip
accidents may occur if parts of the machine protrude beyond the machine frame at low level, or if cables
and pipes associated with the machine are installed without proper consideration of tripping hazards.
See also 4.2.2.
4.7 Hazards due to neglecting hygienic principles
Neglecting hygienic principles may cause a hazard to human health and unacceptable modification of
foodstuff (e.g. contamination by microbial growth or foreign materials and pests).
5 Safety requirements and/or protective 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 12100:2010 for relevant,
but not significant hazards, which are not dealt with by this document.
5.2 Mechanical hazards
5.2.1 Protruding parts
The design of the machine shall avoid assemblies at low level that are likely to pose a trip hazard and
assemblies at middle to high level that may cause impact hazard (see Figure 4). Where this is not
possible, the manufacturer shall provide railings or some other form of barrier, which guides people
away from the trip hazard.
Collision with protruding parts shall be prevented by a handrail. The handrail is required where the
protruding parts are less than 2500 mm from the access level (h), sticking out for more than
300 mm (s), and less than 1 000 mm high (l).
The handrail shall be 1 000 mm high and positioned at least at the same dimension as the parts that
protrude (s).
Protruding parts located more than 2 500 mm from the access level (h) need not be guarded.
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Key
A dryer or cooler
B protruding part
C access level
h distance from the access level
s sticking of protruding part
l height of protruding part
Figure 4 — Scheme of protruding parts
5.2.2 Moving parts
5.2.2.1 Access to moving parts for pasta conveyance systems as described in 4.2.3.1 and located
outside the insulation booth shall be safeguarded in accordance with EN 953:1997+A1:2009, 3.2. For
the access to moving parts through openings of the insulation booth see 5.2.4.
5.2.2.2 Moving parts for drive systems as described in 4.2.3.2 that are located outside the insulation
booth shall be safeguarded in accordance with EN 953:1997+A1:2009, 3.2.
5.2.2.3 Fan blades as described in 4.2.3.3 that are located outside the insulation booth shall be
safeguarded by fixed guards complying with this clause and EN 953:1997+A1:2009, 3.2. For fan blades
that are located inside the insolation booth and that shall not be guarded, the nearest openings in the
insulation booth shall be dimensioned and positioned so that the safety distances comply with those
specified in Clause 4 and in EN ISO 13857:2008, Annexes A and B.
5.2.2.4 For the axial slide control of the drum of a rotary dryer as described in 4.2.3.4, the following
requirements apply: the axial slide control can be realized by mechanical measures e.g. with rollers. For
that particular case measures shall be taken that the construction can withstand the mechanical forces
of the drum. Measures shall be taken against the crushing and drawing-in hazard for the fingers and
hands between the rims and the rollers for axial slide control, e.g. safeguarding.
The axial slide control can be realized by position sensors integrated in a safety-related function of the
electrical control system. The position sensors (for example position switch, proximity switch) shall be
so arranged that they will not be damaged in the event of over-travel. The position sensors shall have
direct opening action. Measures, e.g. safeguarding, shall be taken against the crushing and drawing-in
hazard for the fingers and hands between the driving wheels and the rims.
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5.2.2.5 Moving parts of the air inlet and outlet gates as described in 4.2.3.5 shall be safeguarded by
fixed guards (e.g. meshes, grids, connection pipelines) complying with this clause and
EN 953:1997+A1:2009, 3.2.
5.2.3 Movable parts
Movable parts that have to be removed, e.g. for cleaning and maintenance operations, shall not have a
mass heavier than 25 kg; if heavier, they shall be fitted with supporting devices. The force to open these
movable parts shall not exceed 200 N.
Panels covering openings which need to be removed, e.g. for checking operations and sample drawing,
shall be designed to prevent the operator from being injured by the weight of the panels. The movable
parts with a mass lower than 25 kg shall have a handling system. Unexpected movement caused by the
centre of gravity during handling shall be prevented.
5.2.4 Openings in the insulating booth
Openings which give access to dangerous parts or hot surfaces inside the insulating booth shall be
designed and dimensioned according to EN ISO 13857 to avoid the risk or shall be fitted with fixed
guards or interlocked movable guards in accordance with EN ISO 14119.
Openings for sampling shall be protected with movable guards. Inside the insulating booth the access
shall be protected with guards against mechanical hazards or shall be permitted by means of a special
tool supplied by the manufacturer. To reduce the hot air ejection at the openings the following
measures shall be considered: negative pressure in relation to the external environment, air blades,
reduction of openings or other technical measures reaching the same result.
Openings for cleaning and maintenance operations that allow the entry of the operator inside the
insulating booth shall be protected with fixed guards (panels). The guards shall be stable in the open
position, otherwise they need supporting devices which maintain the panels stable in the open position.
5.2.5 Fluid ejection
Water, superheated water, steam and diathermic oil piping systems together with their intercepting
and controlling devices shall be designed for a pressure 1,5 times the maximum working pressure.
Manually operated valves shall be fitted at the interface between the dryer/cooler and the incoming
supplies. The valves shall be fitted with a trapped device.
Hydraulic and pneumatic systems shall be designed and manufactured according to EN ISO 4413 and
EN ISO 4414.
To avoid dropping of fluids on the product during the maintenance operation it is necessary to check
the heating/cooling system inside the insulating booth, following the manufacturer information for use
given in the instruction handbook. Chemicals, including lubricants, shall be chosen in order to prevent
product contamination. Lubricant intended to come in contact with the product shall be of a grade
suitable for the intended use.
5.2.6 Unexpected start-up
5.2.6.1 General
To avoid hazard due to unexpected start-up or failure of protective device and their integration in the
control system, control circuits and control functions shall comply with EN 60204-1. For other drives
than electrical, see EN 1037.
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5.2.6.2 Supply disconnecting device
Each machine shall be equipped with power supply disconnecting devices according to
EN 1037:1995+A1:2008, 5.1. In particular, for electric power, disconnecting devices shall be according
to EN 60204-1:2006, 5.3.2 (options a, b, c), capable of being equipped with means to lock them in the
OFF-position (e.g. trapped key system). The manually operated elements of controls shall be easily and
safely accessible and be designed, mounted and marked so as to allow instant recognition of their
purpose, as well as direction and condition of switching (see ISO 447).
5.2.6.3 Emergency stop device
Each machine shall be equipped with emergency stop devices positioned on the control panels and at
the interface with other machines when the interface can create dangerous situations (e.g. spreader).
The emergency stop function shall be a stop of Category 0 or 1 according to EN 60204-1:2006, 9.2.2,
and comply with EN 60204-1:2006, 9.2.5.4.1 and 9.2.5.4.2. The emergency stop shall also comply with
EN ISO 13850. Electrical switchgear and control gear shall comply with EN 60947-5-5.
5.2.6.4 Normal stop
For pasta equipment the normal stop shall follow a procedure to stop each machine according to the
technological process inside (the procedure follows the product passage though the equipment). The
aim is to stop each machine when it is empty. Every machine shall be equipped with a device for normal
stop that shall be of Category 0 or 1 as defined in EN 60204-1:2006, 9.2.5.3. The machinery's stop
control shall have priority over the start controls. Once the machinery or its hazardous functions have
stopped, the energy supply to the actuators concerned shall be cut off.
5.2.6.5 Safety-related parts of control system
When interlocked guards are provided for the entry of the operator into the insulation boot or allow the
entrance although not intended by the manufacturer (predictable behaviour) the safety-related parts of
the control system that deal with the hazards inside the booth shall present at least a performance level
“d” in accordance with EN ISO 13849-1.
5.2.6.6 Automatic start warning
Where any form of automatic starting is provided, machines shall be equipped with a start-up warning
device, complying with EN ISO 7731, in order to alert people to leave the danger zone.
5.2.6.7 Interlocking devices
Interlocking devices shall:
— comply with EN ISO 14119, considering environment conditions inside the machine(i.e.
temperature, moisture) and cleaning procedures;
— comply with hygiene requirements of EN 1672-2 and Annex A of this standard;
— be resistant or protected from the action of cleaning and disinfection agents, oil and liquids.
5.2.6.8 Controls for maintenance operations
The design objective for all machines shall be that adjustments, maintenance, repair, cleaning and
servicing can be carried out while the machine is isolated from all power sources or from outside the
hazard zones as indicated in the information for use by the manufacturer.
If this objective cannot be achieved for technical reasons, a special operation mode which permits
potentially hazardous operations with open guards under reduced risk conditions shall be provided as
given by the manufacturer, i.e. the machine shall allow the introduction of an enabling device, which
oSIST prEN 13289:2016
prEN 13289:2015 (E)
permits the operator to override the control panel (see EN ISO 12100:2010, 6.2.11.9 and 6.2.11.10), and
to operate a specific moving part from a safe position, e.g. a portable control device that plugs into a
local control position. The local control shall be equipped with a hold-to-run control allowing low speed
or limited movements. The local control shall also be provided with an emergency stop device.
5.3 Electrical hazards
5.3.1 General
Unless stated otherwise, all electrical equipment associated with the machine shall comply with the
requirements of EN 60204-1:2006 as indicated in this clause.
5.3.2 Protection against electric shock
5.3.2.1 Direct contact
Live parts shall be located inside enclosures that provide protection against direct contact of at least
IP2X as defined in EN 60529. The opening of enclosure shall only be possible by using a key or tool, or
by disconnecting the live parts before opening the enclosure (see EN 60204-1:2006, 6.2.2, options a
and b).
5.3.2.2 Indirect contact
Protection against indirect contact due to insulation failure between live parts and exposed conductive
parts can be achieved by:
a) use of class-II-equipment or by equivalent insulation (see EN 60204-1:2006, 6.3.2); or
b) use of automatic disconnection of supply; this protective measure comprise both
(see EN 60204-1:2006, 6.3.3):
1) the co
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