oSIST prEN 14470-1:2022
(Main)Fire safety storage cabinets - Part 1: Safety storage cabinets for flammable liquids
Fire safety storage cabinets - Part 1: Safety storage cabinets for flammable liquids
This European Standard is a product specification, giving performance requirements for fire safety cabinets to be used for the storage of flammable liquids. It is applicable to cabinets with a total internal volume of not greater than 2 m³, which may be free standing, restrained to a wall or mounted on plinth or castors.
It is not applicable to brick enclosures or walk-in storage rooms.
This Standard does not apply to any support frame or mechanism other than the base which is integral to the cabinet.
Requirements are given in respect of the construction of the cabinet and its capacity to resist fire conditions on the outside. A classification of cabinets is given, according to the level of fire resistance offered, and a type test is included, see Annex A.
The tests described in this European Standard are type tests.
This European Standard does not discriminate between different flammable liquids, which may have considerably different physical properties.
Attention is drawn to national regulations, which may apply with regards to the storage of flammable liquids.
Feuerwiderstandsfähige Lagerschränke - Teil 1: Sicherheitsschränke für brennbare Flüssigkeiten
Dieses Dokument ist eine Produktspezifikation, die Leistungsanforderungen an feuerwiderstandsfähige Lagerschränke zur Lagerung von brennbaren Flüssigkeiten festlegt. Es gilt für Schränke mit einem Gesamtinnenvolumen von max. 2 m3. Diese können freistehend, an einer Wand befestigt oder auf einem Sockel oder auf Rollen montiert sein.
Es gilt nicht für gemauerte Einfassungen oder begehbare Lagerräume.
Dieses Dokument gilt nicht für andere Stützrahmen oder -konstruktionen als den in den Schrank integrierten Sockel.
Es legt Anforderungen bezüglich der Konstruktion des feuerwiderstandsfähigen Lagerschrankes und seiner Fähigkeit fest, äußerer Brandeinwirkung standzuhalten. Es wird eine Einteilung der feuerwiderstandsfähigen Lagerschränke nach dem Grad der Feuerwiderstandsfähigkeit vorgenommen, und es wird eine Baumusterprüfung festgelegt, siehe Anhang A.
Die in diesem Dokument beschriebenen Prüfungen sind Baumusterprüfungen.
Dieses Dokument unterscheidet nicht zwischen verschiedenen brennbaren Flüssigkeiten, die ganz unterschiedliche physikalische Eigenschaften haben können.
Es wird auf nationale Vorschriften hingewiesen, die für die Lagerung brennbarer Flüssigkeiten gelten können.
Armoires de stockage de sécurité incendie - Partie 1: Armoires de stockage de sécurité pour liquides inflammables
Le présent document est une spécification de produit donnant les exigences de performances pour les armoires de stockage de sécurité incendie à utiliser pour entreposer des liquides inflammables. Il est applicable aux armoires dont le volume interne total est inférieur ou égal à 2 m3, qui peuvent être sur pied, fixées au mur ou montées sur socle ou roulettes.
Elle n’est applicable ni aux enceintes en briques ni aux locaux de stockage.
Le présent document ne s'applique pas à tout autre support ou mécanisme de support autre que la base qui fait partie intégrante de l'armoire.
Les exigences portent sur la construction de l’armoire de stockage de sécurité incendie et sa capacité à résister à des conditions de feu externe. Une classification des armoires de stockage de sécurité incendie est fournie, en fonction du niveau de résistance au feu présenté, et un essai de type est inclus, voir l’Annexe A.
Les essais décrits dans le présent document sont des essais de type.
Le présent document ne fait pas de différence entre les différents liquides inflammables, lesquels peuvent avoir des propriétés physiques très différentes.
L’attention est attirée sur les réglementations nationales qui peuvent s’appliquer au stockage des liquides inflammables.
Ognjevarne omarice za shranjevanje kemikalij - 1. del: Ognjevarne omarice za shranjevanje vnetljivih tekočin
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 14470-1:2022
01-marec-2022
Ognjevarne omarice za shranjevanje kemikalij - 1. del: Ognjevarne omarice za
shranjevanje vnetljivih tekočin
Fire safety storage cabinets - Part 1: Safety storage cabinets for flammable liquids
Feuerwiderstandsfähige Lagerschränke - Teil 1: Sicherheitsschränke für brennbareFlüssigkeiten
Armoires de stockage de sécurité incendie - Partie 1: Armoires de stockage de sécurité
pour liquides inflammablesTa slovenski standard je istoveten z: prEN 14470-1
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
71.040.10 Kemijski laboratoriji. Chemical laboratories.
Laboratorijska oprema Laboratory equipment
oSIST prEN 14470-1:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 14470-1:2022
DRAFT
EUROPEAN STANDARD
prEN 14470-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2021
ICS 13.220.40; 71.040.10 Will supersede EN 14470-1:2004
English Version
Fire safety storage cabinets - Part 1: Safety storage
cabinets for flammable liquids
Armoires de stockage de sécurité incendie - Partie 1: Feuerwiderstandsfähige Lagerschränke - Teil 1:
Armoires de stockage de sécurité pour liquides Sicherheitsschränke für brennbare Flüssigkeiten
inflammablesThis draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 332.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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14470-1:2021 E
worldwide for CEN national Members.---------------------- Page: 3 ----------------------
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Contents Page
European foreword ............................................................................................................................................ 3
Introduction .......................................................................................................................................................... 4
1 Scope .......................................................................................................................................................... 5
2 Normative references .......................................................................................................................... 5
3 Terms and definitions ......................................................................................................................... 6
4 Classification........................................................................................................................................... 7
5 Construction ........................................................................................................................................... 7
5.1 Fire protection ....................................................................................................................................... 7
5.2 Access opening ....................................................................................................................................... 7
5.3 Construction materials and surface areas ................................................................................... 8
5.4 Weight load ............................................................................................................................................. 8
5.5 Ventilation ............................................................................................................................................... 8
5.6 Storage level ........................................................................................................................................... 9
5.7 Spill containment sump ...................................................................................................................... 9
5.8 Penetrations for pipes, hoses and electrical cables ................................................................. 9
6 Fire resistance ........................................................................................................................................ 9
7 Information to be supplied .............................................................................................................. 10
8 Marking and labelling ....................................................................................................................... 11
8.1 Openings for the inlet und exhaust air ........................................................................................ 11
8.2 Equipotential bonding ...................................................................................................................... 11
8.3 Labelling of the front ......................................................................................................................... 11
Annex A (normative) Type test to determine protection level, hence classification .............. 12
Annex B (normative) Construction alterations ..................................................................................... 18
Annex C (normative) Mechanical and aerotechnical tests ................................................................ 23
Bibliography ....................................................................................................................................................... 24
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European foreword
This document (prEN 14470-1:2021) has been prepared by Technical Committee CEN/TC 332
“Laboratory equipment”, the secretariat of which is held by DIN.This document is currently submitted to the CEN Enquiry.
This document will supersede EN 14470-1:2004.
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Introduction
This document describes the design and testing criteria for safety cabinets to be used in rooms to store
flammable liquids in closed containers at normal room temperatures.Primarily, this documentcovers the three major safety requirements for storage of flammable liquids,
which are:a) minimizing the fire risk associated with the storage of flammable substances and protection of the
cabinet’s content in the event of fire for a known (tested) minimum length of time (fire rating);
b) minimizing the amount of vapour released into the working environment;c) retention of accidental spillage within the cabinet.
Testing of the cabinet (see a) above) under fire conditions is a normative part of the standard and the
procedures and interpretation of the tests are describes in detail.The fire test (see a) above) provides for four categories of fire protection/ratings. In practice the degree
of fire protection/rating allows the user to select, depending on individual circumstances, a fire safety
storage cabinet which will allow sufficient time for personnel to leave, and fire fighters to enter the room
before it is likely to that the flammables stores turn a possible minor/extinguishable fire into an
uncontrollable one. The methods of achieving b) and c) above are sufficiently flexible to allow for
local/national needs.Caution should be exercised when determining the appropriate cabinet fire rating when flammables
having auto-ignition temperatures below 200 °C and/or having high vapour pressures at room
temperature are involved. When such flammable materials are being stored, expert advice should be
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1 Scope
This document is a product specification, giving performance requirements for fire safety storage cabinet
to be used for the storage of flammable liquids. It is applicable to cabinets with a total internal volume of
not greater than 2 m , which may be free standing, restrained to a wall or mounted on plinth or castors.
It is not applicable to brick enclosures or walk-in storage rooms.This document does not apply to any support frame or mechanism other than the base which is integral
to the cabinet.Requirements are given in respect of the construction of the fire safety storage cabinet and its capacity
to resist fire conditions on the outside. A classification of fire safety storage cabinets is given, according
to the level of fire resistance offered, and a type test is included, see Annex A.
The tests described in this document are type tests.This document does not discriminate between different flammable liquids, which may have considerably
different physical properties.Attention is drawn to national regulations, which can apply with regards to the storage of flammable
liquids.2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1363-1:2020, Fire resistance tests — Part 1: General requirementsEN 7010, Aerospace series - Configuration - Definition and designation for product standards for externally
threaded fastenersEN 13165, Thermal insulation products for buildings — Factory made rigid polyurethane foam (PU)
products — SpecificationEN 13501-1:2018, Fire classification of construction products and building elements - Part 1: Classification
using data from reaction to fire testsEN 16121, Non-domestic storage furniture — Requirements for safety, strength, durability and stability
EN 16122, Domestic and non-domestic storage furniture - Test methods for the determination of strength,
durability and stabilityEN ISO 5167-1, Measurement of fluid flow by means of pressure differential devices inserted in circular
cross-section conduits running full - Part 1: General principles and requirements (ISO 5167-1)
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3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at https://www.electropedia.org/• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
type
specimen of a design manufactured with the characteristics intended for series production
[SOURCE: EN 14175-1:2003, 7.12]3.2
type test
conformity testing on the basis of one or more specimens of product representative of the production
[SOURCE: EN 14175-1:2003, 7.13]3.3
penetration
passage of a media line (pipe, hose, cable) through any orifice of the fire safety storage cabinet
3.4access opening
opening through which user access to a fire safety storage cabinet interior is intended
3.5door
component of the cabinet, which closes the access opening
Note 1 to entry Example of a door would be a wing door, pull-out element with front part or cover
3.6usable space
designated area inside the fire safety storage cabinet that can be used for the storage of flammable liquids
3.7bottom of the cabinet
lower fire integrity construction element of the fire safety storage cabinet
3.8
storage level
fitting element carrying the goods to be stored
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3.9
spill containment sump
area intended to collect leakages and spilled liquids
3.10
superimposed load
load on top of the cabinet
3.11
weight load
total gross cabinet weight including the maximum load and the optional superimposed load as defined
by the manufacturer3.12
small fire test
comparative fire test where only a part of the penetrated wall, ceiling or bottom is tested
3.13media line
cable, hose or pipe
4 Classification
A fire safety storage cabinet shall be classified as one of the types given in Table 1.
Table 1 — Fire safety storage cabinet type classificationType Time taken for T Test according to Ventilation Self-closing doors
to rise by 180 K EN 1363-1 connection facility
required
min
30 ≥ 30 √ √ √
60 ≥ 60 √ √ √
90 ≥ 90 √ √ √
5 Construction
5.1 Fire protection
In the case of a fire, the fire safety storage cabinet shall ensure that, for at least 30 min, the contents of
the cabinet do not contribute any additional risks or spread of fire.5.2 Access opening
5.2.1 In case of fire, the access opening shall be closed off by the door/s automatically and completely.
The closing time of fully opened doors, from the time of door release, shall not exceed 20 s.
If a hold-open feature is included, the access opening shall be closed off fully in the event of a temperature
of (50 ) °C being reached in the vicinity of the access opening of the cabinet. The temperature release
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sensor for this shall be positioned in freely circulating air of the access opening, so that it can heat up
rapidly.5.2.2 The temperature release component of the closing device shall be conforming to the temperature
range specified in 5.2.1. This shall be confirmed in the manufacturer's declaration.
5.2.3 If the closing of the doors is actuated or triggered by an external power source, the mechanism
shall be working even if the external power source fails.5.2.4 Moving components of the closing mechanism shall not reach into the usable space of the cabinet.
5.2.5 Doors and their surroundings shall be designed such that the static force shall not exceed 100 N
between the main closing edge and the counter closing edge to prevent injuries.5.2.6 It shall be possible to operate each door single-handedly.
5.2.7 If the doors are lockable, the locking device shall not compromise the self-closing performance as
required in 5.2.1.5.2.8 The functioning of the closing mechanism shall be tested during the type test according to
Annex A.5.3 Construction materials and surface areas
Coatings and/or decors inside the cabinet, which may be used to improve the durability/impact-
resistance, shall be classified at least as class D or E according to EN 13501-1:2018. The surface areas of
the cabinet interior shall be resistant to the flammable liquids that can correctly be stored inside the
cabinet.5.4 Weight load
The cabinet including supporting elements, e.g. castors, plinths, shall be constructed in such a way that it
is capable of carrying the total cabinet weight including additional load given by the manufacture without
any damaging distortion at the testing temperature according to Annex A.5.5 Ventilation
5.5.1 Cabinets shall be equipped with openings for inlet and exhaust air, enabling the connection of the
cabinet to an exhaust air system. The openings for the inlet and exhaust air shall be positioned to each
other in such a way that a uniform ventilation of the entire cabinet interior is maintained. These openings
should close in the event of fire. For testing details see C.3.NOTE Attention is drawn to national regulations regarding the connection of fire safety storage cabinets to
exhaust air systems.5.5.2 In a cabinet connected to a ventilation system, with the doors closed, air exchange at a rate of at
least 10 times the volumetric capacity of the empty cabinet per hour shall take place. The differential
pressure at the connection point to the ventilation system shall not exceed 150 Pa compared to the
ambient pressure. The low pressure, which the ventilation system causes inside the cabinet, shall not
significantly compromise the opening of the closing elements. Part of the ventilation shall be effective
immediately above the bottom tray of the cabinet. For testing details see C.3.NOTE An air exchange rate of greater than 10 h can be necessary for other reasons and is not covered by this
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5.6 Storage level
The storage levels and their fastenings shall be of non-absorbent material and shall carry the load
specified in the user information (see Clause 7). The storage levels shall not hinder the automatic closure
of the doors. This shall be tested by a functional test. Pull-out storage levels shall not cause the cabinet to
topple, not even when it is fully loaded.NOTE For better ventilation, perforated storage levels or gratings as storage levels can be useful.
The highest storage level shall be not higher than 1,75 m from the floor.5.7 Spill containment sump
The spill containment sump shall have a minimum capacity of 10 % of the volume of all the containers
stored in the cabinet, or at least 110 % of the volume of the largest single container, whichever is the
greater. All spillages or condensation up to this volume shall be retained.In multi-level storage cabinets, the lowest spill containment sump shall be below the lowest storage level.
In the case where the spill containment sump constitutes at the same time the lowest storage level, it
shall be designed such that it meets the requirements regarding the minimum capacity of collection even
when this storage level is fully loaded.The sump shall perform its function at 220 °C during the entire time of its type classification according to
Table 1. This shall be certified by the manufacturer’s declaration.Attention should be paid to national regulation, as these may request higher collection capacities than
mentioned above, e.g. out of environmental protection reasons.5.8 Penetrations for pipes, hoses and electrical cables
Pipes, hoses and electrical cables, if installed, shall only be lead through predefined penetrations parts
which shall be indicated in the manufacturer’s specifications. The pipes, hoses and electrical cables shall
not compromise the requirements for fire resistance established in the type test according to Annex A
(see Clause 6).Unused penetrations shall be sealed according to the manufacturer’s specifications.
The materials of the pipes, tubes and electrical cables shall comply with the requirements defined in the
additional small fire test according to Annex B and shall be given in the user information (see Clause 7).
6 Fire resistanceThe fire resistance capability of the cabinet shall be investigated by a type test. This test shall be
performed by heating the cabinet in a furnace according to the time-temperature curve described in
EN 1363-1:2020, 5.1.1, and measuring the temperature increase inside the cabinet. The cabinet shall then
be classified as type 30, 60 or 90, according to the time for which the interior temperature does not rise
by more than 180 K at any point of measuring, starting at a temperature of (20 ± 5) °C. The test is given
in Annex A.Annex B specifies the requirements of the type test of cabinets with construction alterations compared
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7 Information to be supplied
The cabinet shall be supplied with a user manual/operating instructions for the cabinet, which include at
least the following:a) intended use;
b) dimensions and weight of the empty cabinet;
c) detailed ventilation information (place and position, volumes recommended by the manufacturer);
d) setup recommendations;e) the maximum load capacity in kg:
• of each storage level (see 5.6),
• of the whole cabinet.
f) the maximum volume, in l, of the largest single container and the maximum total capacity, in l, of the
containers that may be stored in the cabinet (see 5.6);g) the spill containment sump capacity, in l;
h) instruction to the user not to use the sump for storage;
i) a warning stating that extreme caution should be exercised before opening a cabinet after a fire;
j) a list of parts which have to be checked and/or replaced on a routine basis;k) instruction to the user to mark on the cabinet if the cabinet is to be operated without connection to
an exhaust air system;l) instruction to the user to check that the connection to the ventilation system, if fitted, is correctly
made, for example by using a smoke tube;m) notification that, if forced ventilation is not connected, the immediate area around the cabinet can
become an EX zone and in such cases national regulations should be referred to;NOTE Attention is drawn to regulations in respect of ventilation, which will apply whether the cabinet has
forced ventilation or not.n) description of the possible penetrations and their number, material, areas, designs;
o) recommendation to the user to undertake regular inspection and maintenance and
recommendations for the maintenance intervals;p) information about the position and type of the available connections to the equipotential bonding;
q) name and address of the manufacturer;r) information about locking system;
s) manufacturer’s declaration of conformity with this standard EN 14470-1;
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t) maximum top load and a description of its distribution and fixation, any top load shall not affect the
ventilation system;u) necessary information on the penetration areas and maximum number of penetrations, the
maximum defined penetration diameter of the layout, the maximum wall thickness of pipes and
hoses as well as the approved materials. Also an indication shall be given that the number of lines
through side walls, back wall or cabinet ceiling shall be reduced to the necessary minimum.
8 Marking and labelling8.1 Openings for the inlet und exhaust air
The openings for the inlet and exhaust air shall be labelled so that it is possible to differentiate between
them.8.2 Equipotential bonding
The possible connections to the equipotential bonding shall be labelled.
8.3 Labelling of the front
The following inscriptions shall be mounted on the front of the cabinet:
a) advice that the door(s) shall remain closed when not in use;
b) advice that the connection to a ventilation system is recommended;
c) the symbols W021 and P003 according to EN 7010;
d) type 30, 60 or 90 according to Table 1;
e) name and/or trademark of the manufacturer;
f) model number and year of production;
g) maximum volume of a single container to be stored in the cabinet and the maximum total capacity of
all containers;h) maximum shelf load, evenly distributed;
i) the manufacturer shall indicate conformity of the cabinet to this document by the inscription
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Annex A
(normative)
Type test to determine protection level, hence classification
A.1 Principle
The fire safety storage cabinet shall be exposed in a suitable furnace to the “standard time-temperature
curve (TTC)” specified in EN 1363-1:2020, 5.1.1. The time by which the maximum permissible
temperature is reached shall be measured. The cabinet type shall then be ascertained by reference to the
criteria set out in Clause 4.If the thermocouples are to be lead out of the bottom, the thermocouples shall be protected in such a way
that the bottom of the cabinet remains with zero potential and the diameter of the thermocouple
protection is equal to 100 mm. This also applies when the thermocouples are lead through the back wall.
If the cabinet is intended to be used mounted on wheels or castors, the fire resistance capability shall
(additionally) be determined in that configuration.A.2 Testing apparatus and means
A.2.1 The furnace shall be arranged so that the doors, walls and roof of the tested cabinet receive equal
heat conditions, without flames directly touching the cabinet body.A.2.2 Measuring equipment for monitoring the ambient temperature, the furnace temperature and the
temperature inside the test cabinet shall be in accordance with the requirements according to EN 1363-1.
A.2.3 The means of heating shall be in accordance with the requirements according to EN 1363-1.
A.2.4 The following additional apparatus is required:• weighing apparatus capable of weighing a cabinet, with a maximum possible reading error of 1 %.
A.3 Plain steel weight(s), to load uniformly the highest shelf of the cabinet to the
maximum of the manufacturer’s specification —Test modelsA.3.1 Quantity and description of test models
For testing the fire resistance capability, there shall be two cabinets of the same model provided. One
cabinet shall be used to conduct the fire test. The second cabinet - that is not used for the fire test - serves
to verify the technical documentation mentioned in A.6.A.3.2 Preliminary examination of the test model
Before actual fire testing, the test models shall be checked visually for conformity with the information
of the technical documentation. Possible differences shall be mentioned in the test report. The weight of
each test model shall be determined.One test sample of the fire safety storage cabinets shall be used for the fire test and the other test sample
shall be used for checking the manufacturer's technical documentation mentioned in A.6.
The self-closing mechanism of the doors shall be verified and comply with the requirements of 5.2.1.
Photographic documentation shall be performed both before and after testing, with views of the open
and closed cabinet, as well as detailed views of the doors, conditions of seals, etc.
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A.4 Preparation of fire test
A.4.1 Installation of test model
The cabinet is to be tested as free standing single cabinet. The model shall be positioned with its back
wall at a minimum of 100 mm from the furnace wall, whereas pipe sockets for ventilation connections
shall not be considered. The resulting space shall not be sealed or packed. The test shall be performed:
• with open inlet and exhaust openings at the start of the test (see 5.5), but without connection to an
exhaust air system;• with the doors closed, but not locked manually;
• with the highest storage level loaded according to the manufacturer's specification with plain steel
weights (see A.2.4); with control points for the testing the failure of the maximum loaded storage
level until the end of the fire test.Cabinets constructed with a base/unprotected feet shall be tested without the cover of this base/of the
feet, if the scope of delivery does not include this cover.If the cabinet is provided with penetrations, these penetrations shall be tested with the fire safety storage
cabinet and the specified arrangement (number, layout, diameter and material) determined by the
manufacturer for this type. Electric cables, hoses and pipes shall be connected to the safety storage
cabinet. They shall penetrate the cabinet at the positions given by the manufacturer in Clause 7 and shall
be 500 mm in length outside the cabinet and 300 mm inside the cabinets (Figure A.1). Tubes and hoses
shall be open.If the cabinet is intended to be used with superimposed load, the maximum load has to be installed and
tested according to the information provided by the manufacture in Clause 7 t).If a cabinet shall only be used later on fixed to a wall, it shall be installed according to the manufacturer’s
instructions. Attention shall be paid that in this installation setting as well, further heat can be added
uniformly to the remaining sides of the cabinet. The model shall be positioned with its back wall at a
minimum of 100 mm from the furnace wall (pipe sockets for ventilation connections will not be
considere...
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