EN 54-10:2002

Fire detection and fire alarm systems - Part 10: Flame detectors - Point detectors

This European Standard specifies requirements, test methods and performance criteria for point-type, resettable flame detectors that operate using radiation from a flame for use in fire detection systems installed in buildings.
This standard does not cover flame detectors working on different principles from those described in this standard (although the standard may be used as guidance in assessing such products).

Brandmeldeanlagen - Teil 10: Flammenmelder - Punktförmige Melder

Diese Europäische Norm legt Anforderungen, Prüfverfahren und Leistungsmerkmale für punktförmige, rückstellbare Flammenmelder fest, die auf die Strahlung von Flammen ansprechen und die in Brandmeldeanlagen für Gebäude eingesetzt werden.
Diese Europäische Norm gilt nicht für Flammenmelder, die nach anderen als in dieser Norm beschriebenen Prinzipien arbeiten (für die Zulassung solcher Produkte kann die vorliegende Norm aber als Leitfaden angewendet werden).

Systèmes de détection et d'alarme d'incendie - Partie 10: Détecteurs de flamme - Détecteurs ponctuels

La présente Norme européenne spécifie les exigences, les méthodes d'essais et les critères de performance applicables aux détecteurs de flamme ponctuels réarmables qui fonctionnent en utilisant les rayonnements de la flamme et sont utilisés dans les systèmes de détection incendie installés dans les bâtiments.
Les détecteurs de flamme fonctionnant selon des principes différents de ceux décrits dans la présente norme ne sont pas couverts par la présente norme (bien que la présente norme puisse servir de guide pour les essais concernant ces produits).

Odkrivanje in javljanje požara ter alarmiranje - 10. del: Plamenski javljalniki - Točkovni javljalniki

General Information

• Status: Published
• Publication Date: 22-Jan-2002
• Withdrawal Date: 30-Jul-2004
• ICS: 13.220.20 - Fire protection
• Technical Committee: CEN/TC 72 - Fire detection and fire alarm systems
• Drafting Committee: CEN/TC 72/WG 4 - Flame detectors
• Current Stage: 9092 - Decision on results of review/2YR ENQ - revise - Review Enquiry
• Start Date: 22-Jul-2021
• Completion Date: 14-Apr-2025
• Directive: 2014/90/EU - Directive 2014/90/EU of the European Parliament and of the Council of 23 July 2014 on marine equipment and repealing Council Directive 96/98/EC
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Directive: 96/98/EC - Marine equipment
• Mandate: M/109 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on fire alarm/detection, fixed firefighting, fire and smoke control and explosion suppression products
• Ref Project: SIST EN 54-10:2002 - Fire detection and fire alarm systems - Part 10: Flame detectors - Point detectors

Relations

• Amended By: EN 54-10:2002/A1:2005 - Fire detection and fire alarm systems - Part 10: Flame detectors - Point detectors
• Effective Date: 22-Dec-2008
• Revised: prEN 54-10 rev - Fire detection and fire alarm systems - Part 10: Flame detectors - Point detectors
• Effective Date: 18-Jan-2023

Overview - EN 54-10:2002 (Flame detectors - Point detectors)

EN 54-10:2002 is a European Standard published by CEN that specifies requirements, test methods and performance criteria for point-type, resettable flame detectors that detect flames by their radiation for use in fire detection and fire alarm systems in buildings. The standard applies to detectors that operate on the radiation principles described in the document; devices using other sensing principles are not covered (though EN 54-10 may be used as guidance when assessing them). EN 54-10 is part of the broader EN 54 series for fire detection and alarm systems.

Key topics and technical requirements

The standard defines both general requirements and detailed test procedures, including:

• Classification and compliance rules for point flame detectors and required manufacturer data.
• Individual alarm indication and requirements for monitoring detachable detectors and ancillary device connections.
• Software-controlled detector requirements (documentation, design and storage of programs/data).
• Extensive test program covering detector performance and environmental robustness:
  • Response point determination and reproducibility/repeatability tests
  • Directional dependence and fire sensitivity tests
  • Dazzling (operational) tests to check false operation from bright light sources
  • Environmental and mechanical tests: dry heat, cold, damp heat (cyclic & steady), SO2 corrosion, shock, impact, vibration, variation in supply parameters
  • EMC immunity tests (operational)
• Marking and information required on the product and documentation.
• Normative annexes that specify apparatus and test fires (optical bench, radiometers, burner examples, impact/dazzling test apparatus).

Practical applications and users

EN 54-10 is used to ensure reliable detection of flame events and consistent performance of point-type flame detectors in building fire protection systems. Typical users include:

• Manufacturer and designers of flame detectors - to design, test and certify products to European requirements.
• Independent test laboratories and certification bodies - to perform the prescribed test methods and type-approval.
• Fire safety engineers, system specifiers and consultants - to select compliant flame detectors for projects.
• Installers and building owners - to verify product marking, performance data and suitability for a given application.
• Regulators and compliance bodies - for national implementation of EN 54 series requirements.

Related standards

• EN 54 series (other parts) - EN 54-1 provides general requirements and relationships within the EN 54 family.
• Use EN 54-10 alongside other EN 54 parts when designing or certifying complete fire detection and alarm systems.

Keywords: EN 54-10:2002, flame detectors, point detectors, fire detection, fire alarm systems, CEN, test methods, performance criteria, resettable flame detectors, radiation-based detection.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2002
2GNULYDQMHLQMDYOMDQMHSRåDUDWHUDODUPLUDQMHGHO3ODPHQVNLMDYOMDOQLNL
7RþNRYQLMDYOMDOQLNL
Fire detection and fire alarm systems - Part 10: Flame detectors - Point detectors
Brandmeldeanlagen - Teil 10: Flammenmelder - Punktförmige Melder
Systemes de détection et d'alarme d'incendie - Partie 10: Détecteurs de flamme -
Détecteurs ponctuels
Ta slovenski standard je istoveten z: EN 54-10:2002
ICS:
13.220.20 3RåDUQD]DãþLWD Fire protection
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 54-10
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2002
ICS 13.220.20
English version
Fire detection and fire alarm systems - Part 10: Flame detectors
- Point detectors
Systèmes de détection et d'alarme d'incendie - Partie 10: Brandmeldeanlagen - Teil 10: Flammenmelder -
Détecteurs de flamme - Détecteurs ponctuels Punktförmige Melder
This European Standard was approved by CEN on 3 November 2001.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 54-10:2002 E
worldwide for CEN national Members.

Contents
Foreword. 4
1 Scope . 4
2 Normative references . 4
3 Terms and definitions. 5
4 General requirements. 6
4.1 Compliance. 6
4.2 Classification. 6
4.3 Individual alarm indication. 6
4.4 Connection of ancillary devices. 6
4.5 Monitoring of detachable detectors. 6
4.6 Manufacturer's adjustments . 6
4.7 On-site sensitivity adjustment. 6
4.8 Data . 7
4.9 Additional requirements for software controlled detectors . 7
4.9.1 General. 7
4.9.2 Software documentation. 7
4.9.3 Software design . 8
4.9.4 The storage of programs and data. 8
5 Tests. 8
5.1 General. 8
5.1.1 Atmospheric conditions for tests. 8
5.1.2 Operating conditions for tests. 8
5.1.3 Mounting arrangements . 9
5.1.4 Tolerances . 9
5.1.5 Determination of response point. 9
5.1.6 Test procedure . 10
5.1.7 Reduced functional tests . 10
5.1.8 Provision for tests . 10
5.1.9 Test schedule . 10
5.2 Reproducibility. 11
5.2.1 Object. 11
5.2.2 Test procedure . 11
5.2.3 Requirements . 11
5.3 Repeatability. 12
5.3.1 Object. 12
5.3.2 Test procedure . 12
5.3.3 Requirements . 12
5.4 Directional dependence . 12
5.4.1 Object. 12
5.4.2 Test procedure . 12
5.4.3 Requirements . 12
5.5 Fire sensitivity. 14
5.5.1 Object. 14
5.5.2 Test procedure . 14
5.5.3 Classification. 14
5.5.4 Requirements . 16
5.6 Dazzling (operational). 16
5.6.1 Object. 16
5.6.2 Test procedure and apparatus . 16
5.6.3 Requirements . 17
5.7 Dry heat (operational) . 17
5.7.1 Object . 17
5.7.2 Test procedure and apparatus. 17
5.7.3 Requirements . 18
5.8 Cold (operational). 18
5.8.1 Object . 18
5.8.2 Test procedure and apparatus. 18
5.8.3 Requirements . 18
5.9 Damp heat, cyclic (operational). 19
5.9.1 Object . 19
5.9.2 Test procedure and apparatus. 19
5.9.3 Requirements . 19
5.10 Damp heat, steady state (endurance) . 20
5.10.1 Object . 20
5.10.2 Test procedure and apparatus. 20
5.10.3 Requirements . 20
5.11 Sulfur dioxide (SO ) corrosion (endurance). 20
5.11.1 Object . 20
5.11.2 Test procedure and apparatus. 21
5.11.3 Requirements . 21
5.12 Shock (operational). 21
5.12.1 Object . 21
5.12.2 Test procedure and apparatus. 21
5.12.3 Requirements . 22
5.13 Impact (operational). 22
5.13.1 Object . 22
5.13.2 Test procedure and apparatus. 22
5.13.3 Requirements . 23
5.14 Vibration, sinusoidal, (operational). 23
5.14.1 Object . 23
5.14.2 Test procedure and apparatus. 23
5.14.3 Requirements . 24
5.15 Vibration, sinusoidal (endurance) . 24
5.15.1 Object . 24
5.15.2 Test procedure and apparatus. 25
5.15.3 Requirements . 25
5.16 Variation in supply parameters (operational). 25
5.16.1 Object . 25
5.16.2 Test procedure . 26
5.16.3 Requirements . 26
5.17 Electromagnetic Compatibility (EMC), Immunity tests (operational) . 26
5.17.1 Object . 26
5.17.2 Test procedure and apparatus. 26
5.17.3 Requirements . 27
6 Marking. 27
Annexe A (normative) Annex A Apparatus for response point determination . 28
A.1 Optical bench. 28
A.2 Radiation source . 28
A.3 Shutter. 28
A.4 Modulator. 29
A.5 Radiometer. 30
Annexe B (informative) Example of a methane burner. 31
Annexe C (normative) Test fires . 33
C.1 Methylated spirit fire . 33
Annexe D (normative) Apparatus for dazzling test . 35
Annexe E (normative)  Apparatus for impact test. 37
Foreword
This document (EN 54-10) has been prepared by Technical Committee CEN/TC 72 " Fire detection and fire
alarm systems ", the secretariat of which is held by BSI.
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 July 2002, and conflicting national standards shall be withdrawn at
the latest by July 2004. For products which have complied with the relevant national standard before the
date of withdrawal (dow), as shown by the manufacturer or by a certification body, this previous standard
may continue to apply for production until July 2007.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard : Austria, Belgium, Czech Republic, Denmark,
Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway,
Portugal, Spain, Sweden, Switzerland and the United Kingdom.
Information on the relationship between this European Standard and other standards of the EN 54 series is
given in annex A of EN 54-1:1996.
The annexes A, C and D are normative. The annexes B and E are informative.
1 Scope
This European Standard specifies requirements, test methods and performance criteria for point-type,
resettable flame detectors that operate using radiation from a flame for use in fire detection systems installed
in buildings.
This standard does not cover flame detectors working on different principles from those described in this
standard (although the standard may be used as guidance in assessing such products).
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications.
These normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply
to this European Standard only when incorporated in it by amendment or revision. For undated references
the latest edition of the publication referred to applies (including amendments).
EN 54-1:1996, Fire detection and fire alarm systems — Part 1: Introduction
ISO 209-1, Wrought aluminium and aluminium alloys — Chemical composition and forms of products — Part
1: Chemical composition
IEC 60064, Tungsten filament lamps for domestic and similar general lighting purposes — Performance
requirements
IEC 60068-1, Environmental testing — Part 1: General and guidance
IEC 60068-2-1:1990, Environmental testing — Part 2: Tests — Tests A: Cold
IEC 60068-2-2:1974, Basic environmental testing procedures — Part 2: Tests —Tests B: Dry heat
IEC 60068-2-6:1995, Environmental testing — Part 2: Tests — Test Fc: Vibration (sinusoidal)
IEC 60068-2-27:1987, Environmental testing — Part 2: Tests — Test Ea and guidance: Shock
IEC 60068-2-30:1980, Basic environmental testing procedure — Part 2: Test Db and guidance: Damp heat,
cyclic (12 + 12-hour cycle)
IEC 60068-2-42:1982, Basic environmental testing procedure — Part 2: Test Kc: Sulphur dioxide test for
contacts and connections
IEC 60068-2-56:1988, Environmental testing — Part 2: Tests — Test Cb: Damp heat, steady state, primarily
for equipment
EN 50130-4, Alarm systems — Part 4: Electromagnetic compatibility — Product family standard: Immunity
requirements for components of fire, intruder and social alarm systems
3 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1
infrared (IR) detector
a flame detector responding only to radiation having wavelengths greater than 850 nm
3.2
ultra-violet (UV) detector
a flame detector responding only to radiation having wavelengths less than 300 nm
3.3
multiband detector
a flame detector having two or more sensing elements, each responding to radiation in a distinct wavelength
range and each of whose outputs may contribute to the alarm decision
NOTE The alarm decision may be based on any arithmetic or logical combination of the individual signals.
3.4
sensitivity
a measure of the ability of a flame detector to detect fires
NOTE Sensitivity is not necessarily directly related to the response point.
3.5
detector classification
a classification of flame detectors to indicate their relative sensitivity to fire
NOTE Class 1 indicates the highest sensitivity and Class 3 the lowest sensitivity acceptable within this European
standard.
3.6
response point
distance D, measured in accordance with 5.1.5, at which the individual flame detector under test gives an
alarm signal
3.7
sensitivity adjustment
any adjustment of the detector or of the alarm criteria within the supply and monitoring equipment (see 5.1.2)
that leads to a change in sensitivity
4 General requirements
4.1 Compliance
In order to comply with this standard the detector shall meet the requirements of this clause, which shall be
verified by visual inspection or engineering assessment, shall be tested as described in clause 5 and shall
meet the requirements of the tests.
4.2 Classification
Detectors shall conform to one or more of the following classifications: Class 1, Class 2 or Class 3 according
to the requirements of the tests specified in 5.5.
4.3 Individual alarm indication
Each detector shall be provided with an integral red visual indicator, by which the individual detector, which
released an alarm, may be identified, until the alarm condition is reset. Where other conditions of the
detector may be visually indicated, they shall be clearly distinguishable from the alarm indication, except
when the detector is switched into a service mode. For detachable detectors the indicator may be integral
with the base or the detector head.
4.4 Connection of ancillary devices
Where the detector provides for connections to ancillary devices (e.g. remote indicators, control relays etc.),
open- or short-circuit failures of these connections shall not prevent the correct operation of the detector.
4.5 Monitoring of detachable detectors
For detachable detectors, a means shall be provided for a remote monitoring system (e.g. the control and
indicating equipment) to detect the removal of the head from the base, in order to give a fault signal.
4.6 Manufacturer's adjustments
It shall not be possible to change the manufacturer's settings except by special means (e.g. the use of a
special code or tool) or by breaking or removing a seal.
4.7 On-site sensitivity adjustment
If there is provision for on-site sensitivity adjustment of the detector then:
a) for each setting, at which the manufacturer claims compliance with this standard, the detector shall
comply with the requirements of this standard and shall achieve a classification corresponding to that
marked on the detector for that setting;
b) for each setting in a), access to the adjustment means shall only be possible by the use of a code or
special tool or by removing the detector from its base or mounting;
c) any setting(s), at which the manufacturer does not claim compliance with this standard, shall only be
accessible by the use of a code or special tool, and it shall be clearly marked on the detector or in the
associated data, that if these setting(s) are used, the detector does not comply with the standard.
NOTE These adjustments may be carried out at the detector or at the control and indicating equipment.
4.8 Data
Detectors shall either be supplied with sufficient technical, installation and maintenance data to enable their
1)
correct installation and operation or, if all of these data are not supplied with each detector, reference to the
appropriate data sheet shall be given on, or with each detector.
NOTE Additional information may be required by organisations certifying that detectors produced by a manufacturer
conform to the requirements of this standard.
4.9 Additional requirements for software controlled detectors
4.9.1 General
For detectors which rely on software control in order to fulfil the requirements of this standard, the
requirements of 4.9.2, 4.9.3 and 4.9.4 shall be met.
4.9.2 Software documentation
4.9.2.1 The manufacturer shall submit documentation which gives an overview of the software design.
This documentation shall be in sufficient detail for the design to be inspected for compliance with this
standard and shall include at least the following:
a) a functional description of the main program flow (e.g. as a flow diagram or structogram) including:

1) a brief description of the modules and the functions that they perform;

2) the way in which the modules interact;

3) the overall hierarchy of the program;

4) the way in which the software interacts with the hardware of the detector;

5) the way in which the modules are called, including any interrupt processing.
b) a description of which areas of memory are used for the various purposes (e.g. the program, site
specific data and running data);
c) a designation, by which the software and its version can be uniquely identified.
4.9.2.2 The manufacturer shall have available detailed design documentation, which only needs to be
provided if required by the testing authority. It shall comprise at least the following:
a) an overview of the complete configuration of the product, including all software and hardware
components;
b) a description of each module of the program, containing at least:
1) the name of the module;
2) a description of the tasks performed;

1)
To enable correct operation of the detectors, these data should describe the requirements for the correct processing
of the signals from the detector. This may be in the form of a full technical specification of these signals, a reference to
the appropriate signalling protocol or a reference to suitable types of control and indicating equipment etc.
3) a description of the interfaces, including the type of data transfer, the valid data range and the
checking for valid data.
c) full source code listings, as hard copy or in machine-readable form (e.g. ASCII-code), including all
global and local variables, constants and labels used, and sufficient comment for the program flow to be
recognized;
d) details of any software tools used in the design and implementation phase (e.g. CASE-tools, compilers).
4.9.3 Software design
In order to ensure the reliability of the detector, the following requirements for software design shall apply:
a) the software shall have a modular structure;
b) the design of the interfaces for manually and automatically generated data shall not permit invalid data
to cause error in the program operation;
c) the software shall be designed to avoid the occurrence of deadlock of the program flow.
4.9.4 The storage of programs and data
The program necessary to comply with this standard and any preset data, such as manufacturer's settings,
shall be held in non-volatile memory. Writing to areas of memory containing this program and data shall only
be possible by the use of some special tool or code and shall not be possible during normal operation of the
detector.
Site-specific data shall be held in memory which will retain data for at least two weeks without external
power to the detector, unless provision is made for the automatic renewal of such data, following loss of
power, within 1 h of power being restored.
5 Tests
5.1 General
5.1.1 Atmospheric conditions for tests
Unless otherwise stated in a test procedure, the testing shall be carried out after the test specimen has been
allowed to stabilize in the standard atmospheric conditions for testing as described in IEC 60068-1 as
follows:
a) temperature : (15 to 35) C
b) relative humidity : (25 to 75) %
c) air pressure : (86 to 106) kPa
NOTE If variations in these parameters have a significant effect on a measurement, then such variations should be
kept to a minimum during a series of measurements carried out as part of one test on one specimen.
5.1.2 Operating conditions for tests
If a test method requires a specimen to be operational, then the specimen shall be connected to suitable
supply and monitoring equipment with characteristics as required by the manufacturer's data. Unless
otherwise specified in the test method, the supply parameters applied to the specimen shall be set within the
manufacturer's specified range(s) and shall remain substantially constant throughout the tests. The value
chosen for each parameter shall normally be the nominal value, or the mean of the specified range. If a test
procedure requires a specimen to be monitored to detect any alarm or fault signals, then connections shall
be made to any necessary ancillary devices (e.g. through wiring to an end-of-line device for conventional
detectors) to allow a fault signal to be recognised.
Unless otherwise specified in the test method, detectors having adjustable sensitivity shall be set to their
highest sensitivity for the conditioning.
NOTE The details of the supply and monitoring equipment and the alarm criteria used should be given in the test
report.
5.1.3 Mounting arrangements
The specimen shall be mounted by its normal means of attachment in accordance with the manufacturer's
instructions. If these instructions describe more than one method of mounting then the method considered to
be most unfavourable shall be chosen for each test.
5.1.4 Tolerances
If a specific tolerance or deviation limit is not specified in a requirement or test procedure a deviation limit of
± 5 % shall be applied.
5.1.5 Determination of response point
5.1.5.1 Principle
The response point shall be measured by exposing the detector to the radiation from a suitable flame source
and determining the greatest distance at which the detector will reliably produce an alarm condition within a
time of 30 s.
5.1.5.2 Test apparatus
The test apparatus shall be as described in annex A.
The design and construction of the apparatus, and the surfaces surrounding the test area, shall be such that
no significant radiation from the source reaches the detector apart from that which has passed through the
aperture. (This means for example that there shall be no reflection of radiation from the walls or other parts
of the apparatus, and no spurious radiation from hot flue gases or hot surfaces around the burner.)
Throughout this test method it is necessary to align the detector relative to its optical axis and to measure
distances relative to the plane of the detector sensing element(s). If the detector does not have a well-
defined optical axis then the manufacturer shall nominate an optical axis for the purposes of this test
method. The position of this axis relative to an easily identifiable plane on the detector shall be noted in the
test report.
Similarly, if the detector sensing elements do not lie in a well-defined plane then the manufacturer shall
nominate a plane for the purposes of this test method. The position of this plane relative to an easily
identifiable plane on the detector shall be noted in the test report.
5.1.5.3 Initial determination
A suitable area for the aperture shall be determined experimentally before the commencement of the test
programme such that the response point of one detector, chosen at random from the specimens submitted
for test, lies within the range 1300 mm to 1700 mm. The size and shape of the aperture used shall be
recorded and shall be kept constant throughout the test programme. For detectors having adjustable
sensitivity, and whose adjustment range covers more than one sensitivity class, it will be necessary to
determine an appropriate aperture size for each sensitivity class of the detector.
5.1.5.4 Source stability
After determining a suitable aperture size, and before any determination of response points, the irradiance
on the optical axis of the source shall be measured using the radiometer in accordance with A.5. This
measurement shall be carried out with no modulation of the source and with the aperture unobstructed. The
measured value of irradiance shall be recorded and used as a reference throughout the test programme to
verify that the source radiance has not varied by more than 5 %.
5.1.6 Test procedure
The specimen shall be connected to its supply and indicating equipment and shall be allowed to stabilize for
a period of 15 min or for a time specified by the manufacturer. During this stabilization period the specimen
shall be shielded, using the shutter in accordance with A.3, from all sources of radiation which may affect the
determination of the response point.
Before commencing any measurement of response point the burner shall be allowed to reach a stable
working condition.
The distance of the specimen from the source shall be varied and at each distance the detector shall be
exposed to the source for 30 s using the shutter. The response point D is the greatest distance, measured
between the aperture and the plane of the specimen sensing element(s), at which the detector will reliably
produce an alarm response within each 30 s exposure. If the detector response is known to be dependent
on previous exposure to radiation then sufficient time shall be allowed before each exposure to ensure that
previous exposures do not substantially affect the measurement of the response point.
For detectors having stochastic response behaviour each value of D shall come from at least six repetitions of
each measurement, D beeing the mean value of these repetitions. Repetitions shall continue until an additional
value changes the average value of D by less than 5 %.
5.1.7 Reduced functional tests
Where the test procedure calls for a reduced functional test, the detector shall be exposed to a source of
radiation which is sufficient to cause an alarm response from the detector. The nature of the source used
and the duration of the exposure shall be appropriate to the product in question.
5.1.8 Provision for tests
The following shall be provided for testing compliance with this part of EN 54:
a) for detachable detectors, eight heads and eight bases; for non-detachable detectors, eight specimens
b) the data required in 4.8.
The specimens shall be themselves representative of the manufacturer's normal production with regard to
their construction and calibration.
NOTE This implies that the mean response point of the eight specimens, found in the reproducibility test should
also represent the production mean, and that the limits specified in the reproducibility test should also be applicable to
the manufacturer's production.
5.1.9 Test schedule
The detectors shall be tested according to the test schedule given in Table 1. After the reproducibility test the
four specimens having the largest value of response point (at the highest sensitivity setting) shall be
numbered 1 to 4 and the remainder shall be numbered 5 to 8.
Table 1 — Test Schedule
Test Clause Specimen Number
12 3 4 5 6 7 8
Reproducibility 5.2 x x x x x x x x
Repeatability 5.3 x
Directional dependence 5.4 x
Fire sensitivity 5.5 x x x x x x x x
Dazzling (operational) 5.6 x
Dry heat (operational) 5.7 x
Cold (operational) 5.8 x
Damp heat cyclic (operational) 5.9 x
Damp heat steady state (endurance) 5.10 x
Sulphur dioxide (SO ) corrosion (endurance) 5.11 x
Shock (operational) 5.12 x
Impact (operational) 5.13 x
Vibration, sinusoidal (operational) 5.14 x
Vibration, sinusoidal (endurance) 5.15 x
Variation in supply parameters (operational) 5.16 x
Electrostatic discharge (operational) 5.17 x
Radiated electromagnetic fields (operational) 5.17 x
Conducted disturbances induced by 5.17 x
electromagnetic fields (operational)
Fast transient bursts (operational) 5.17 x
Slow high energy voltage surge (operational) 5.17 X
5.2 Reproducibility
5.2.1 Object
To show that the response point of the detector does not vary unduly from specimen to specimen.
5.2.2 Test procedure
The response point of each of the test specimens shall be measured in accordance with 5.1.6 and each
value of D shall be recorded. For detectors having adjustable sensitivity and whose range of adjustment
covers more than one sensitivity class, the measurement shall be repeated for each marked class.
For each class setting, the highest value of D shall be designated D , the lowest value of D shall be
max
designated D , and the mean value of D designated D .
min mean
5.2.3 Requirements
For each class setting, the ratio D :D shall not be greater than 1,15 and the ratio D :D shall not be
max mean mean min
greater than 1,22.
5.3 Repeatability
5.3.1 Object
To show that the detector has a stable behaviour with respect to its response point even after a number of
alarm conditions.
5.3.2 Test procedure
The response point of the specimen shall be measured in accordance with 5.1.6, six times.
The maximum response point shall be designated D and the minimum value designated D .
max min
5.3.3 Requirements
The ratio of the response points D :D shall not be greater than 1,14.
max min
5.4 Directional dependence
5.4.1 Object
To show that the sensitivity of the detector is not unduly dependent on the direction of the radiation incident
on the detector.
5.4.2 Test procedure
The detector shall be mounted on the optical bench with its optical axis coincident with the source optical
axis as shown in Figure 1. The detector shall then be rotated through an angle
about an axis normal to the
optical axis and passing through the point of intersection of the optical axis and the plane of the sensing
element(s). The response point of the detector shall be measured for
 15, 30.
max
where
is the maximum ½-angle of reception specified for that detector type by the manufacturer.
max
With the angle
set to
the specimen shall be rotated about its optical axis through an angle  and the
max
response point measured a further seven times for
 45, 90,135,180, 225, 270, 315
The maximum value of response point recorded at any angle in this test and that measured for the same
specimen in the reproducibility test shall be designated D and the minimum value designated D .
max min
5.4.3 Requirements
The ratio of the response points D :D shall not be greater than 1,41.
max min
Ab
8 9
A - A
A
D
a
Key
1 Methane gas burner 7 Plane of sensing element(s)
2 Flame 8 Detector
3 Burner housing 9 Horizontal rotating axis
4 Aperture 10 Reference point
5 Optical axis 11 Detector support
6 Vertical rotating axis
Figure 1 — Measurement of directional dependence
5.5 Fire sensitivity
5.5.1 Object
To show that the detector has adequate sensitivity to fire as required for general application in fire detection
systems for buildings, and to determine the sensitivity class(es) appropriate for the detector.
5.5.2 Test procedure
The test consists of exposing the detectors to the radiation from two types of test fire at known distances, d,
to determine if the detectors are capable of producing an alarm signal within 30 s. The distance shall be
chosen in accordance with the manufacturers specification for the intended class(es) of the detector (see
5.5.3.)
The eight specimens shall be mounted on a support with their optical axes in the horizontal plane and at a
height of 1500 mm ± 200 mm. The horizontal angle of incidence, I , as defined in Figure 2, shall be not
H
greater than 5. The detectors shall be connected to supply and monitoring equipment as described in 5.1.2.
The fire tray, containing n-heptane in accordance with C.1, shall be placed at a distance of 12 m from the
plane of the detector sensing elements in an area where the fire will be unaffected by draughts. The area
shall be free of radiation sources which may affect the response of the detectors to the test fire.
The detectors shall be shielded from radiation and shall be allowed to stabilize for at least 15 min or for a
period specified by the manufacturer. The fuel shall be ignited and allowed to burn for at least 1 min. The
shutter shall then be removed and the detectors exposed to the radiation from the fire for a period of 30 s. At
the end of the 30 s period the detectors shall again be shielded from the fire radiation and the status of each
detector recorded.
If all 8 specimens are in the alarm condition then the detector shall be deemed to respond to the test fire. If
one or more of the specimens has failed to respond then the detector is deemed to have failed the test.
The procedure described above shall be repeated using the methylated spirit fire, in accordance with C.2, at
a distance of 12 m.
If the manufacturer specifies class 2, the complete procedure shall be repeated with the distance between
the fire and the detectors of 17 m. If the manufacturer specifies class 1, the complete procedure shall be
repeated with the distance between the fire and the detectors of 17 m and 25 m.
For detectors having adjustable sensitivity the above tests shall be carried out for the extreme sensitivity
settings. If the range of adjustment covers more than one sensitivity class then the tests shall be performed
for settings corresponding to each of the marked classes (see 4.7 a)).
5.5.3 Classification
The detector shall be classified according to the greatest distance at which a
...