1 Scope This European Standard is applicable to the performance and safety requirements of fire extinguishing systems and their associated test methods for multi-place chambers designed
Trang 1BSI Standards Publication
Hyperbaric chambers — Specific requirements for fire extinguishing systems
— Performance, installation and testing
Trang 2NORME EUROPÉENNE
English Version
Hyperbaric chambers - Specific requirements for fire extinguishing systems - Performance, installation and testing
Chambres hyperbares - Exigences spécifiques relatives aux systèmes de lutte contre l'incendie - Performances,
installation et essais
Druckkammern - Spezifische Anforderungen an Feuerlöschsysteme - Leistung, Montage und Prüfung
This European Standard was approved by CEN on 8 July 2011 and includes Amendment 1 approved by CEN on 13 August 2013
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 CEN-CENELEC Management Centre 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 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
EUROPEAN COMMITTEE FOR STANDARDIZATION
C O M IT É E U R O P É E N D E N O R M A LIS A T IO N EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref No EN 16081:2011+A1:2013: E
This British Standard is the UK implementation of EN 16081:2011+A1:2013
It supersedes BS EN 16081:2011, which is withdrawn
The start and finish of text introduced or altered by amendment is indicated
in the text by tags Tags indicating changes to CEN text carry the number of the CEN amendment For example, text altered by CEN amendment A1 is indicated by
The UK participation in its preparation was entrusted to Technical Committee CH/100/-/1, Multi-occupancy hyperbaric chambers for use as medical devices
A list of organizations represented on this committee can be obtained
on request to its secretary
This publication does not purport to include all the necessary provisions
of a contract Users are responsible for its correct application
© The British Standards Institution 2013
Published by BSI Standards Limited 2013 ISBN 978 0 580 84509 3
ICS 11.040.60; 13.220.20
Compliance with a British Standard cannot confer immunity from legal obligations.
This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2011
Amendments/corrigenda issued since publication
30 September 2013 Implementation of CEN amendment A1:2013
Trang 3NORME EUROPÉENNE
English Version
Hyperbaric chambers - Specific requirements for fire extinguishing systems - Performance, installation and testing
Chambres hyperbares - Exigences spécifiques relatives
aux systèmes de lutte contre l'incendie - Performances,
installation et essais
Druckkammern - Spezifische Anforderungen an Feuerlöschsysteme - Leistung, Montage und Prüfung
This European Standard was approved by CEN on 8 July 2011 and includes Amendment 1 approved by CEN on 13 August 2013
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 CEN-CENELEC Management Centre 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 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
EUROPEAN COMMITTEE FOR STANDARDIZATION
C O M IT É E U R O P É E N D E N O R M A LIS A T IO N EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref No EN 16081:2011+A1:2013: E
Trang 4Contents Page
Foreword 3
1 Scope 4
2 Normative references 4
3 Terms and definitions 4
4 Specific hazards regarding fire risks 4
5 Performance and requirements 4
6 Test requirements for fire extinguishing systems 6
Annex A (informative) Dummy 10
Annex B (informative) Operation of fire extinguishing systems 11
B.1 Risk analysis and procedures 11
B.2 Elements of fire fighting 12
B.3 Prevention 12
B.3.1 Materials 12
B.3.2 Prohibited materials 13
B.3.3 Education and training 14
Annex ZA (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 93/42/EEC on Medical Devices" 15
Bibliography 16
Foreword
This document (EN 16081:2011+A1:2013) has been prepared by Technical Committee CEN/TC 359 “Project Committee - Hyperbaric chambers”, 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 March 2014, and conflicting national standards shall be withdrawn at the latest by March 2014
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights This document supersedes EN 16081:2011
This document includes Amendment 1, approved by CEN on 2013-08-13
The start and finish of text introduced or altered by amendment is indicated in the text by tags !"
This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s)
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom
Trang 5Contents Page
Foreword 3
1 Scope 4
2 Normative references 4
3 Terms and definitions 4
4 Specific hazards regarding fire risks 4
5 Performance and requirements 4
6 Test requirements for fire extinguishing systems 6
Annex A (informative) Dummy 10
Annex B (informative) Operation of fire extinguishing systems 11
B.1 Risk analysis and procedures 11
B.2 Elements of fire fighting 12
B.3 Prevention 12
B.3.1 Materials 12
B.3.2 Prohibited materials 13
B.3.3 Education and training 14
Annex ZA (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 93/42/EEC on Medical Devices" 15
Bibliography 16
Foreword
This document (EN 16081:2011+A1:2013) has been prepared by Technical Committee CEN/TC 359 “Project Committee - Hyperbaric chambers”, 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 March 2014, and conflicting national standards shall be withdrawn at the latest by March 2014
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights This document supersedes EN 16081:2011
This document includes Amendment 1, approved by CEN on 2013-08-13
The start and finish of text introduced or altered by amendment is indicated in the text by tags !"
This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s)
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom
Trang 61 Scope
This European Standard is applicable to the performance and safety requirements of fire extinguishing
systems and their associated test methods for multi-place chambers designed for pressures in excess of
ambient atmospheric pressure and employed in medical installations for therapeutic purposes, in the following
referred to as chambers
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 14931:2006, Pressure vessels for human occupancy (PVHO) — Multi-place pressure chamber systems
for hyperbaric therapy — Performance, safety requirements and testing
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply:
3.1
fire extinguishing system
system for active deployment of extinguishing medium inside the chamber in order to extinguish fire
3.2
extinguishing medium
liquid or gas used to extinguish fire
3.3
nozzle
mechanical device used to ensure dispersion of extinguishing medium inside the chamber with certain
characteristics
4 Specific hazards regarding fire risks
A fire, as a physical phenomenon, is significantly influenced by the ambient pressure, the partial pressure of
oxygen and the confined space of the hyperbaric chamber
The rate of combustion will be directly related to ambient pressure and the oxygen level In a hyperbaric
environment with increased oxygen partial pressure, even materials thought to be non-combustible will burn
fiercely Owing to the confined space in the chamber, a fire would cause a sudden increase of temperature
and high concentration of toxic gases and smoke If such a fire occurs, it shall be dealt with quickly and all
personnel and patients shall be evacuated from the chamber People suffering from breathing difficulties and
burns shall be cared for (see Annex B)
5 Performance and requirements
5.1 Fire extinguishing systems in hyperbaric chambers shall produce a specified extinguishing performance
as stated in Clause 6
5.2 Fire extinguishing systems shall suit the chamber’s maximum operational pressure They shall fully
protect all chamber compartments for human occupancy
5.3 The fire extinguishing system shall be installed in such a way that the risk of physical injury to persons
inside the chamber is as low as possible
5.4 Fire extinguishing systems shall have a manual release Independent activation shall be possible from
inside and outside the chamber The release shall be easily accessible and protected against unintentional activation (e.g safety button) For operation, see EN 14931:2006, 4.5.1
An additional automatic release is permitted if its suitability is proven for hyperbaric conditions up to the chamber's maximum operational pressure and documented
5.5 With both an automatic and manual release, a warning signal shall be heard at the control console This
warning signal may be temporarily muted, but there shall be no possibility to switch it off as long as the fire system is active
5.6 The extinguishing nozzles shall be installed in such a way that the required extinguishing effect is
ensured for any sitting and lying place inside the chamber A lying place is to be considered as minimum three sitting places in one line
NOTE The nozzles arrangement is stipulated by the manufacturer of the fire extinguishing system He decides where and how many nozzles in accordance with seats or stretchers are to be placed
Other areas shall be covered in the seating height by the equivalent of at least 50% of the required extinguishing medium flow specified per seat (see 6.2.14) This medium flow shall be delivered from nozzles
of the same characteristic as in the test
5.7 Pipes and hoses containing the extinguishing medium shall be made of suitable material concerning
pressure and corrosion For other pipes and hoses, see EN 14931:2006, 4.7.4
For shut off devices, see EN 14931:2006, 4.2.15
5.8 Pipes and hoses of the fire extinguishing system shall be marked according to the medium and its
function Actuators (e.g valves, press buttons and manual releases) shall be marked in such a way that they are distinguished from all other systems For installation of pipes, see EN 14931:2006, 4.7.7
5.9 The extinguishing medium tank shall be suitable for the intended pressure and protected against
pressure exceeding the maximum allowable design pressure
The material of the tank shall be suitable for the extinguishing medium or shall be adequately protected against corrosion
The extinguishing medium supply tank shall be equipped with a controllable level indicator and pressure gauge
The control console of the chamber shall indicate at least the status of the fire-extinguishing system (filling level, supply pressure)
5.10 Conveying of the extinguishing medium shall be done by pump system (positive-displacement pumps)
or a pressure tank system each exclusive to the extinguishing system
5.11 Within 2 s following the release of the fire extinguishing system the pressure build-up in the fire
extinguishing system shall be realised and the extinguishing medium shall come out in the chamber
5.12 The extinguishing medium flow shall automatically switch off before the extinguishing medium is
exhausted to prevent any gas or liquid other than the extinguishing medium entering the compartment
Manual shutdown of the fire extinguishing system as well as repeated switching on by the chamber operator (outside) shall be possible at any given time It shall be impossible to manually switch off the fire extinguishing system from inside the chamber
Trang 71 Scope
This European Standard is applicable to the performance and safety requirements of fire extinguishing
systems and their associated test methods for multi-place chambers designed for pressures in excess of
ambient atmospheric pressure and employed in medical installations for therapeutic purposes, in the following
referred to as chambers
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 14931:2006, Pressure vessels for human occupancy (PVHO) — Multi-place pressure chamber systems
for hyperbaric therapy — Performance, safety requirements and testing
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply:
3.1
fire extinguishing system
system for active deployment of extinguishing medium inside the chamber in order to extinguish fire
3.2
extinguishing medium
liquid or gas used to extinguish fire
3.3
nozzle
mechanical device used to ensure dispersion of extinguishing medium inside the chamber with certain
characteristics
4 Specific hazards regarding fire risks
A fire, as a physical phenomenon, is significantly influenced by the ambient pressure, the partial pressure of
oxygen and the confined space of the hyperbaric chamber
The rate of combustion will be directly related to ambient pressure and the oxygen level In a hyperbaric
environment with increased oxygen partial pressure, even materials thought to be non-combustible will burn
fiercely Owing to the confined space in the chamber, a fire would cause a sudden increase of temperature
and high concentration of toxic gases and smoke If such a fire occurs, it shall be dealt with quickly and all
personnel and patients shall be evacuated from the chamber People suffering from breathing difficulties and
burns shall be cared for (see Annex B)
5 Performance and requirements
5.1 Fire extinguishing systems in hyperbaric chambers shall produce a specified extinguishing performance
as stated in Clause 6
5.2 Fire extinguishing systems shall suit the chamber’s maximum operational pressure They shall fully
protect all chamber compartments for human occupancy
5.3 The fire extinguishing system shall be installed in such a way that the risk of physical injury to persons
inside the chamber is as low as possible
5.4 Fire extinguishing systems shall have a manual release Independent activation shall be possible from
inside and outside the chamber The release shall be easily accessible and protected against unintentional activation (e.g safety button) For operation, see EN 14931:2006, 4.5.1
An additional automatic release is permitted if its suitability is proven for hyperbaric conditions up to the chamber's maximum operational pressure and documented
5.5 With both an automatic and manual release, a warning signal shall be heard at the control console This
warning signal may be temporarily muted, but there shall be no possibility to switch it off as long as the fire system is active
5.6 The extinguishing nozzles shall be installed in such a way that the required extinguishing effect is
ensured for any sitting and lying place inside the chamber A lying place is to be considered as minimum three sitting places in one line
NOTE The nozzles arrangement is stipulated by the manufacturer of the fire extinguishing system He decides where and how many nozzles in accordance with seats or stretchers are to be placed
Other areas shall be covered in the seating height by the equivalent of at least 50% of the required extinguishing medium flow specified per seat (see 6.2.14) This medium flow shall be delivered from nozzles
of the same characteristic as in the test
5.7 Pipes and hoses containing the extinguishing medium shall be made of suitable material concerning
pressure and corrosion For other pipes and hoses, see EN 14931:2006, 4.7.4
For shut off devices, see EN 14931:2006, 4.2.15
5.8 Pipes and hoses of the fire extinguishing system shall be marked according to the medium and its
function Actuators (e.g valves, press buttons and manual releases) shall be marked in such a way that they are distinguished from all other systems For installation of pipes, see EN 14931:2006, 4.7.7
5.9 The extinguishing medium tank shall be suitable for the intended pressure and protected against
pressure exceeding the maximum allowable design pressure
The material of the tank shall be suitable for the extinguishing medium or shall be adequately protected against corrosion
The extinguishing medium supply tank shall be equipped with a controllable level indicator and pressure gauge
The control console of the chamber shall indicate at least the status of the fire-extinguishing system (filling level, supply pressure)
5.10 Conveying of the extinguishing medium shall be done by pump system (positive-displacement pumps)
or a pressure tank system each exclusive to the extinguishing system
5.11 Within 2 s following the release of the fire extinguishing system the pressure build-up in the fire
extinguishing system shall be realised and the extinguishing medium shall come out in the chamber
5.12 The extinguishing medium flow shall automatically switch off before the extinguishing medium is
exhausted to prevent any gas or liquid other than the extinguishing medium entering the compartment
Manual shutdown of the fire extinguishing system as well as repeated switching on by the chamber operator (outside) shall be possible at any given time It shall be impossible to manually switch off the fire extinguishing system from inside the chamber
Trang 85.13 The required supply of extinguishing medium shall be calculated to ensure at least 1 min of
extinguishing medium flow taking into account 5.6 and 6.2.14
5.14 If extinguishing medium other than water of drinking water quality or distilled water is used, its safety to
health shall be proven without additional (e.g gas mask) measures
5.15 Installation of the fire extinguishing system with all its components shall be protected against freezing
5.16 Pressure vessels shall be designed, examined and marked according to the applicable standard
5.17 Should an electric power supply be necessary for operating the fire extinguishing system, it shall be
connected to an uninterruptible power supply (UPS) as a back-up
5.18 Fire extinguishing systems shall be labelled with a permanently readable and well visible type plate
containing at least the following details:
type;
working pressure;
date of manufacturing and serial number;
test interval;
name of the organisation which performed the concept test
5.19 Operating instructions of the fire extinguishing system shall be provided by the manufacturer according
to EN 14931:2006, Clause 5
The manufacturer will propose a maintenance programme comprising an annual test in order to verify the
efficiency of the fire extinguishing system and in case of a wet test a purge of each part (nozzles included) of
the fire extinguishing system
6 Test requirements for fire extinguishing systems
6.1 A concept test consists of a hot test and a wet test A third party certification is required for the concept
test For each type of fire-extinguishing system and parameters of the chamber, a fire test series (hot test)
must be carried out in a test chamber according to specifications given in 6.2 under consideration of 6.3.4
The wet test is part of a functioning and acceptance test of the installation of the fire extinguishing system to
show that the items according to 6.3.2 are fulfilled, as well as the extinguishing means capacity and
performance and the spray pattern of each system manufactured (acceptance test at the final installation at
least for the first system)
The concept test will be certified by a third party certification organisation having the experience (qualified by
education and training)
The documentation of the test shall include at least: time from activation to start of deployment as well as the
deployment time, supply pressure, leakage test of system, releasing points, direction and location of nozzles,
function of nozzles and comparison with design documents
6.2 Parameters and conditions of fire extinguishing tests (hot test)
6.2.1 Tests of fire extinguishing systems shall be performed under the following conditions:
1 test at 200 kPa (2,0 bar gauge) pressure with 21 vol.-% oxygen (O2);
2 tests at 150 kPa (1,5 bar gauge) pressure with 30 vol.-% O2;
1 test at max working pressure of the chamber with 21 vol.-% O2
6.2.2 For simulation of persons, dressed dummies that are inflammable and impenetrable to the
extinguishing medium must be used
6.2.3 For each extinguishing test at least two torso dummies shall be used The dummies shall be the size
of a normal adult (see Annex A) and be positioned on seats next to each other with a distance of 15 cm between the arms
6.2.4 During the extinguishing test, the dummies shall be put on closed seat shells with the seatback made
of steel plate, width and depth according to EN 14931:2006, 4.2.8 and a seat height of ≥≥ 50 cm in a seated position
6.2.5 For each extinguishing test each dummy shall be dry and is to be dressed in dry clothing as follows:
1 short sleeve cotton undershirt;
1 short cotton underwear;
1 mixed fabric shirt with long sleeves (max 70% cotton);
1 pair of cotton trousers (long);
1 hair decoy out of lambskin strips, about 10 cm wide, normal hairline at forehead and neck
6.2.6 Commonly used, fast reacting thermo elements (TE) are to be fixed on each dummy in the following
positions:
1TE on the dummy, front side, just above the waistband;
1TE on the dummy, front side, shoulder area;
1TE on the head;
1TE 30 cm in front of face;
6.2.7 The thermo elements are to be fixed on the dummy’s bodies in such a way that no falsifying heat
influence of the thermo elements can occur
6.2.8 Suitable thermo elements that have been checked for proper function and signs of thermal damage
are to be used for the fire extinguishing tests
6.2.9 The arrangement of extinguishing nozzles in relation to the dummy in this test shall reflect the
locations and distances between those elements in the chamber to be delivered
The arrangement of the nozzles shall be included in the test records
6.2.10 The fire shall be ignited on one dummy, front side, just above the waistband An electric resistance
wire of smallest possible weight is to be used as the ignition source
Trang 95.13 The required supply of extinguishing medium shall be calculated to ensure at least 1 min of
extinguishing medium flow taking into account 5.6 and 6.2.14
5.14 If extinguishing medium other than water of drinking water quality or distilled water is used, its safety to
health shall be proven without additional (e.g gas mask) measures
5.15 Installation of the fire extinguishing system with all its components shall be protected against freezing
5.16 Pressure vessels shall be designed, examined and marked according to the applicable standard
5.17 Should an electric power supply be necessary for operating the fire extinguishing system, it shall be
connected to an uninterruptible power supply (UPS) as a back-up
5.18 Fire extinguishing systems shall be labelled with a permanently readable and well visible type plate
containing at least the following details:
type;
working pressure;
date of manufacturing and serial number;
test interval;
name of the organisation which performed the concept test
5.19 Operating instructions of the fire extinguishing system shall be provided by the manufacturer according
to EN 14931:2006, Clause 5
The manufacturer will propose a maintenance programme comprising an annual test in order to verify the
efficiency of the fire extinguishing system and in case of a wet test a purge of each part (nozzles included) of
the fire extinguishing system
6 Test requirements for fire extinguishing systems
6.1 A concept test consists of a hot test and a wet test A third party certification is required for the concept
test For each type of fire-extinguishing system and parameters of the chamber, a fire test series (hot test)
must be carried out in a test chamber according to specifications given in 6.2 under consideration of 6.3.4
The wet test is part of a functioning and acceptance test of the installation of the fire extinguishing system to
show that the items according to 6.3.2 are fulfilled, as well as the extinguishing means capacity and
performance and the spray pattern of each system manufactured (acceptance test at the final installation at
least for the first system)
The concept test will be certified by a third party certification organisation having the experience (qualified by
education and training)
The documentation of the test shall include at least: time from activation to start of deployment as well as the
deployment time, supply pressure, leakage test of system, releasing points, direction and location of nozzles,
function of nozzles and comparison with design documents
6.2 Parameters and conditions of fire extinguishing tests (hot test)
6.2.1 Tests of fire extinguishing systems shall be performed under the following conditions:
1 test at 200 kPa (2,0 bar gauge) pressure with 21 vol.-% oxygen (O2);
2 tests at 150 kPa (1,5 bar gauge) pressure with 30 vol.-% O2;
1 test at max working pressure of the chamber with 21 vol.-% O2
6.2.2 For simulation of persons, dressed dummies that are inflammable and impenetrable to the
extinguishing medium must be used
6.2.3 For each extinguishing test at least two torso dummies shall be used The dummies shall be the size
of a normal adult (see Annex A) and be positioned on seats next to each other with a distance of 15 cm between the arms
6.2.4 During the extinguishing test, the dummies shall be put on closed seat shells with the seatback made
of steel plate, width and depth according to EN 14931:2006, 4.2.8 and a seat height of ≥≥ 50 cm in a seated position
6.2.5 For each extinguishing test each dummy shall be dry and is to be dressed in dry clothing as follows:
1 short sleeve cotton undershirt;
1 short cotton underwear;
1 mixed fabric shirt with long sleeves (max 70% cotton);
1 pair of cotton trousers (long);
1 hair decoy out of lambskin strips, about 10 cm wide, normal hairline at forehead and neck
6.2.6 Commonly used, fast reacting thermo elements (TE) are to be fixed on each dummy in the following
positions:
1TE on the dummy, front side, just above the waistband;
1TE on the dummy, front side, shoulder area;
1TE on the head;
1TE 30 cm in front of face;
6.2.7 The thermo elements are to be fixed on the dummy’s bodies in such a way that no falsifying heat
influence of the thermo elements can occur
6.2.8 Suitable thermo elements that have been checked for proper function and signs of thermal damage
are to be used for the fire extinguishing tests
6.2.9 The arrangement of extinguishing nozzles in relation to the dummy in this test shall reflect the
locations and distances between those elements in the chamber to be delivered
The arrangement of the nozzles shall be included in the test records
6.2.10 The fire shall be ignited on one dummy, front side, just above the waistband An electric resistance
wire of smallest possible weight is to be used as the ignition source
Trang 106.2.11 The fire extinguishing system must be released when the flame reaches the upper line of the shoulder
level
The test is valid only in situations when at least two thermoelements indicate an increase of temperature of at
least 100 °C
A video film of this part of the test shall be included in the records
NOTE This video film should include time (in s), pressure (in bar gauge) and oxygen content (in vol.-%) of the test
performed
6.2.12 During the extinguishing process chamber temperatures, temperatures of thermo elements and
measured and recorded before and after a fire test Furthermore, the extinguishing behaviour is to be
recorded by a video camera This video film shall also include the condition of the dummies and clothing
before and after the test
6.2.13 The fire extinguishing system fulfils the requirements if:
points are below 50 °C in ≤ 20 s after activation of the fire extinguishing system
and
the fire is out after ≤ 40 s after activation of the fire extinguishing system
If the requirements are not fulfilled at any of the tests, the fire extinguishing system shall be modified and all
4 tests defined in 6.2.1 shall be repeated
6.2.14 Based on the test conditions described in 6.2.1 taking into account requirements described in 6.2.13
the extinguishing medium flow per seat is to be calculated for every test condition
NOTE To calculate the extinguishing medium flow per seat the following values are needed:
Volume of extinguishing medium displaced during the test (V in l);
Time from activation of the system until fire is out (t in s);
Number of seats in the test (n);
Extinguishing medium flow per seat = V(t × n)−1 in l × s−1
From those calculated flows the highest value is chosen to fulfil the minimum requirement for extinguishing medium flow
per seat
6.2.15 The effectiveness of a fire extinguishing system can only be recognised if the fire extinguishing tests
were carried out under the supervision of a third party certification organisation and an appropriate test
certificate was issued
The test certificate shall include as a minimum:
name or trade name of the fire extinguishing system;
type of the extinguishing medium;
maximum working and test pressure of the fire extinguishing system;
date of the type test;
periodic inspection interval according to operating instructions
6.3 On site acceptance test 6.3.1 The on site acceptance test must be carried out by a third party certification organisation who
performed the hot test as part of the concept test
Each fire extinguishing system is to be tested (wet test) by a third party certification organisation who performed the hot test as part of the concept test or the manufacturer certified according to MDD Annex II as well as concerning the transferability of results of the hot tests to the individual chamber system
All test results must be certified accordingly
6.3.2 It must be proven:
that all pressure vessel certificates are available;
that the system was installed according to a design approved by a third party certification organisation or the manufacturer certified according to MDD Annex II;
that requirements according to chapter 5, 6.2.9 and 6.2.14 are fulfilled;
that a pressure test, tightness test and cleaning of pipe work were carried out;
that safety devices exist and are properly adjusted;
that a pressure supply system is properly installed and secured;
that the pipe work is protected according to EN 14931:2006, 4.7.7;
that the fire extinguishing system, if required is connected to an adequate uninterruptable power supply;
check of markings;
check of operation manual
6.3.3 The wet test shall be performed at 100 kPa (1 bar gauge) and shall include at least: time from
activation to start of deployment as well as the deployment time, supply pressure, leakage test of system, function of all releasing points, and the performance of nozzles compared with design documents
6.3.4 Geometry and built in equipment of the chamber as well as direction and location of nozzles are to be
compared with conditions in the chamber in which the hot test was conducted
6.3.5 A wet test shall be done in each compartment of the chamber
In connection with the acceptance test and during the recurring tests of the fire extinguishing system the free flow and the adjustment of the nozzles shall be checked