EN 54-5:2017+A1:2018
(Main)Fire detection and fire alarm systems - Part 5: Heat detectors - Point heat detectors
Fire detection and fire alarm systems - Part 5: Heat detectors - Point heat detectors
This European Standard specifies the requirements, test methods and performance criteria for point heat detectors intended for use in fire detection and fire alarm systems installed in and around buildings (see EN 54-1:2011).
This European Standard provides for the assessment of verification of constancy of performance (AVCP) of point heat detectors to this EN.
For other types of heat detector, or for detectors intended for use in other environments, this standard should only be used for guidance.
Heat detectors with special characteristics and developed for specific risks are not covered by this standard.
Brandmeldeanlagen - Teil 5: Wärmemelder - Punktförmige Melder
Diese Europäische Norm legt die Anforderungen, Prüfverfahren und Leistungskriterien für punktförmige Wärmemelder fest, die für den Einsatz in Brandmeldeanlagen bestimmt sind, die in und in der Nähe von Gebäuden eingebaut sind (siehe EN 54-1:2011).
Diese Europäische Norm behandelt die Bewertung und Überprüfung der Leistungsbeständigkeit (en: assessment of verification of constancy of performance, AVCP) von punktförmigen Wärmemeldern nach dieser EN.
Für andere Typen von Wärmemeldern oder für Wärmemelder, die für die Anwendung unter anderen Umge-bungsbedingungen vorgesehen sind, sollte die vorliegende Norm nur als Leitfaden angewendet werden.
Wärmemelder mit speziellen Merkmalen, die für besondere Risiken entwickelt wurden, sind nicht Gegen-stand dieser Norm.
Systèmes de détection et d'alarme incendie - Partie 5 : Détecteurs de chaleur - Détecteurs ponctuels
Sistemi za odkrivanje in javljanje požara ter alarmiranje - 5. del: Toplotni javljalniki - Točkovni javljalniki
Ta evropski standard določa zahteve, preskusne metode in merila učinkovitosti za točkovne javljalnike, namenjene uporabi v sistemih za odkrivanje in javljanje požara, ki so nameščeni v zgradbah in njihovi okolici (glej standard EN 54-1:2011).
Ta evropski standard omogoča ocenjevanje v okviru preverjanja nespremenljivosti lastnosti (AVCP) točkovnih javljalnikov v skladu s tem standardom.
Za druge vrste toplotnih javljalnikov ali javljalnike, ki so namenjeni uporabi v drugih okoljih, se ta standard lahko uporablja samo kot vodilo.
Toplotni javljalniki s posebnimi lastnostmi, ki so izdelani za uporabo v posebnih tveganih okoliščinah, niso zajeti v tem standardu.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2018
1DGRPHãþD
SIST EN 54-5:2017
6LVWHPL]DRGNULYDQMHLQMDYOMDQMHSRåDUDWHUDODUPLUDQMHGHO 7RSORWQLMDYOMDOQLNL
7RþNRYQLMDYOMDOQLNL
Fire detection and fire alarm systems - Part 5: Heat detectors - Point heat detectors
Brandmeldeanlagen - Teil 5: Wärmemelder - Punktförmige Melder
Systèmes de détection et d'alarme incendie - Partie 5 : Détecteurs de chaleur -
Détecteurs ponctuels
Ta slovenski standard je istoveten z: EN 54-5:2017+A1:2018
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.
EN 54-5:2017+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2018
EUROPÄISCHE NORM
ICS 13.220.20 Supersedes EN 54-5:2017
English Version
Fire detection and fire alarm systems - Part 5: Heat
detectors - Point heat detectors
Systèmes de détection et d'alarme incendie - Partie 5 : Brandmeldeanlagen - Teil 5: Wärmemelder -
Détecteurs de chaleur - Détecteurs ponctuels Punktförmige Melder
This European Standard was approved by CEN on 23 October 2016 and includes Amendment 1 approved by CEN on 10 April
2018.
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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 54-5:2017+A1:2018 E
worldwide for CEN national Members.
Contents Page
European foreword .5
1 Scope .7
2 Normative references .7
3 Terms, definitions and abbreviations .8
3.1 Terms and Definitions .8
3.2 Abbreviations .8
4 Product characteristics .8
4.1 General .8
4.1.1 Heat Response Categories .8
4.2 Operational reliability .9
4.2.1 Position of heat sensitive elements .9
4.2.2 Individual alarm indication .9
4.2.3 Connection of ancillary devices . 10
4.2.4 Monitoring of detachable detectors . 10
4.2.5 Manufacturer's adjustments. 10
4.2.6 On-site adjustment of response behaviour . 10
4.2.7 Software controlled detector (when provided) . 10
4.3 Nominal activation conditions/sensitivity . 12
4.3.1 Directional dependence . 12
4.3.2 Static response temperature . 12
4.3.3 Response times from typical application temperature . 12
4.3.4 Response times from 25 °C . 12
4.3.5 Response times from high ambient temperature . 12
4.3.6 Reproducibility . 12
4.4 Response delay (response time) . 13
4.4.1 Additional tests for suffix S detectors . 13
4.4.2 Additional tests for suffix R detectors . 13
4.5 Tolerance to supply voltage - Variation in supply parameters . 13
4.6 Durability of Nominal activation conditions/sensitivity . 13
4.6.1 Temperature resistance . 13
4.6.2 Humidity resistance . 13
4.6.3 Corrosion resistance: Sulphur dioxide (SO ) corrosion (endurance) . 14
4.6.4 Vibration resistance . 14
4.6.5 Electrical stability: Electromagnetic Compatibility (EMC), Immunity tests
(operational) . 14
5 Testing, assessment and sampling methods . 14
5.1 General . 14
5.1.1 Atmospheric conditions for tests . 14
5.1.2 Operating conditions for tests . 15
5.1.3 Mounting arrangements. 15
5.1.4 Tolerances . 15
5.1.5 Measurement of response time . 15
5.1.6 Provision for tests . 16
5.1.7 Test schedule . 16
5.2 Operational reliability . 20
5.2.1 Position of heat sensitive elements . 20
5.2.2 Individual alarm indication . 20
5.2.3 Connection of ancillary devices . 20
5.2.4 Monitoring of detachable detectors . 21
5.2.5 Manufacturer's adjustments. 21
5.2.6 On-site adjustment of response behaviour . 21
5.2.7 Software controlled detectors (when provided) . 21
5.3 Nominal activation conditions/sensitivity . 21
5.3.1 Directional dependence . 21
5.3.2 Static response temperature . 22
5.3.3 Response times from typical application temperature . 22
5.3.4 Response times from 25 °C . 23
5.3.5 Response times from high ambient temperature . 24
5.3.6 Reproducibility . 25
5.4 Response delay (response time) . 25
5.4.1 Additional tests for suffix S detectors . 25
5.4.2 Additional test for suffix R detectors . 27
5.5 Tolerance to supply voltage . 28
5.5.1 Variation in supply parameters . 28
5.6 Durability of Nominal activation conditions/sensitivity . 29
5.6.1 Temperature resistance . 29
5.6.2 Humidity resistance . 31
5.6.3 Corrosion resistance . 33
5.6.4 Vibration resistance . 34
5.6.5 Electrical stability . 38
6 Assessment and verification of constancy of performance (AVCP) . 40
6.1 General . 40
6.2 Type testing . 40
6.2.1 General . 40
6.2.2 Test samples, testing and compliance criteria . 41
6.2.3 Test reports . 41
6.3 Factory production control FPC) . 41
6.3.1 General . 41
6.3.2 Requirements . 42
6.3.3 Product specific requirements . 44
6.3.4 Initial inspection of factory and FPC . 45
6.3.5 Continuous surveillance of FPC . 45
6.3.6 Procedure for modifications . 46
6.3.7 One-off products, pre-production products, (e.g. prototypes) and products
produced in very low quantities . 46
7 Classification . 47
8 Marking, labelling and packaging . 47
Annex A (normative) Heat tunnel for response time and response temperature
measurements . 48
Annex B (informative) Information concerning the construction of the heat tunnel . 49
Annex C (informative) Derivation of upper and lower limits of response times . 52
Annex D (informative) Apparatus for impact test . 55
Annex E (informative) Data supplied with point heat detectors . 57
Annex ZA (informative) Relationship of this European Standard with Regulation
(EU) No.305/2011 . 58
ZA.1 Scope and relevant characteristics . 58
ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) . 60
ZA.3 Assignment of AVCP tasks . 60
Bibliography . 62
European foreword
This document (EN 54-5:2017+A1:2018) 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 February 2019, and conflicting national
standards shall be withdrawn at the latest by August 2022.
Attention is drawn to the possibility that some of the elements of this document may be the
subject of patent rights. CEN shall not be held responsible for identifying any or all such patent
rights."
This document includes Amendment 1 approved by CEN on 2018-04-10.
This document supersedes !EN 54-5:2017".
The start and finish of text introduced or altered by amendment is indicated in the text by tags
!".
EN 54-5 has been revised as follows:
Inclusion of new clauses and annexes:
— Clause 6 Assessment and verification of constancy of performance (AVCP)
— Clause 7 Classification and designation
— Clause 8 Marking, labelling and packaging
— Annex E (informative) Data supplied with point heat detectors
The main technical changes are as follows:
— Applying the latest EN 50130-4:2011 EMC for immunity tests.
The editorial changes are as follows:
— Changes from classes to Categories
— Editorial changes in a number of clauses, such as software and General, in order to conform
to the regulation.
This document has been prepared under a standardization request given to CEN/CENELEC by
the European Commission and the European Free Trade Association, and supports the basic
requirements of Regulation (EU) 305/2011.
For relationship with EU Regulation, see informative Annex ZA, which is an integral part of this
document.
EN 54, Fire detection and fire alarm systems, consists of the following parts:
— Part 1: Introduction
— Part 2: Control and indicating equipment
— Part 3: Fire alarm devices – Sounders
— Part 4: Power supply equipment
— Part 5: Heat detectors – Point heat detectors
— Part 7: Smoke detectors – Point detectors using scattered light, transmitted light or
ionization
— Part 10: Flame detector – Point detectors
— Part 11: Manual call points
— Part 12: Smoke detectors – Line detector using an optical light beam
— Part 13: Compatibility assessment of system components
— Part 14: Guidelines for planning, design, installation, commissioning, use and maintenance
(CEN/TS)
— Part 16: Voice alarm control and indicating equipment
— Part 17: Short circuit isolators
— Part 18: Input/output devices
— Part 20: Aspirating smoke detectors
— Part 21: Alarm transmission and fault warning routine equipment
— Part 22: Line-type heat detectors
— Part 23: Fire alarm devices – Visual alarms
— Part 24: Components of voice alarm systems – Loudspeakers
— Part 25: Components using radio links and system requirements
— Part 26: Carbon monoxide detectors – Point detectors
— Part 27: Duct smoke detectors
— Part 28: Non-resettable (digital) line type heat detectors
— Part 29: Multi-sensor fire detectors - Point detectors using a combination of smoke and heat
sensors
— Part 30: Multi-sensor fire detectors - Point detectors using a combination of carbon
monoxide and heat sensors
— Part 31: Multi-sensor detector – Point detectors using a combination of smoke, carbon
monoxide and optionally heat sensors
— Part 32: Guidelines for the planning, design, installation, commissioning, use and
maintenance of voice alarm systems (CEN/TS)
NOTE This list includes standards that are in preparation and other standards may be added. For
current status of published standards refer to www.cen.eu.
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, Serbia, Slovakia, Slovenia,
Spain, Sweden, Switzerland, Turkey and the United Kingdom.
1 Scope
This European Standard specifies the requirements, test methods and performance criteria for
point heat detectors intended for use in fire detection and fire alarm systems installed in and
around buildings (see EN 54-1:2011).
This European Standard provides for the assessment of verification of constancy of performance
(AVCP) of point heat detectors to this EN.
For other types of heat detector, or for detectors intended for use in other environments, this
standard should only be used for guidance.
Heat detectors with special characteristics and developed for specific risks are not covered by
this standard.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
EN 54-1:2011, Fire detection and fire alarm systems - Part 1: Introduction
EN 50130-4:2011, Alarm systems - Part 4: Electromagnetic compatibility - Product family
standard: Immunity requirements for components of fire, intruder, hold up, CCTV, access control
and social alarm systems
EN 60068-1:1994, Environmental testing - Part 1: General and guidance (IEC 60068-1:1988)
EN 60068-2-1:2007, Environmental testing - Part 2-1: Tests - Test A: Cold (IEC 60068-2-1:2007)
EN 60068-2-2:2007, Environmental testing - Part 2-2: Tests - Test B: Dry heat (IEC 60068-2-
2:2007)
EN 60068-2-6:2008, Environmental testing - Part 2-6: Tests - Test Fc: Vibration (sinusoidal) (IEC
60068-2-6:2008)
EN 60068-2-27:2009, Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock (IEC
60068-2-27:2009)
EN 60068-2-30:2005, Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic (12 h +
12 h cycle) (IEC 60068-2-30:2005)
EN 60068-2-42:2003, Environmental testing - Part 2-42: Tests - Test Kc: Sulphur dioxide test for
contacts and connections (IEC 60068-2-42:2003)
EN 60068-2-78:2013, Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady state
(IEC 60068-2-78:2012)
ISO 209:2007, Aluminium and aluminium alloys — Chemical composition
3 Terms, definitions and abbreviations
3.1 Terms and Definitions
For the purposes of this document, the following terms and definitions and those given in
EN 54-1:2011 apply.
3.1.1
typical application temperature
temperature that an installed point heat detector can be expected to experience for long periods
of time in the absence of a fire condition
Note 1 to entry: This temperature is deemed to be 29 °C below the minimum static response
temperature, according to the category marked on the point heat detector, as specified in Table 1.
3.1.2
maximum application temperature
maximum temperature that an installed point heat detector can be expected to experience, even
for short periods of time, in the absence of a fire condition
Note 1 to entry: This temperature is deemed to be 4 °C below the minimum static response
temperature, according to the category marked on the point heat detector, as specified in Table 1.
3.1.3
static response temperature
temperature at which the point heat detector would produce an alarm signal if subjected to a
vanishingly small rate of rise of temperature
−1
Note 1 to entry: Rates of rise of temperature of approximately 0,2 K min are normally found to be
suitable for measuring this, however lower rates can be required in some instances (see 5.3).
3.2 Abbreviations
RT Response time
T Temperature
4 Product characteristics
4.1 General
4.1.1 Heat Response Categories
Detectors are categorized by one or more of the following heat response categories: A1, A2, B, C,
D, E, F or G according to the requirements of the tests specified in Clause 5 (see Table 1).
Table 1 — Detector categorization temperatures
Detector Typical Maximum Minimum Maximum
Category Application Application Static Static
Temperatur Temperatur Response Response
e e Temperature Temperature
°C °C °C °C
A1 25 50 54 65
A2 25 50 54 70
B 40 65 69 85
C 55 80 84 100
D 70 95 99 115
E 85 110 114 130
F 100 125 129 145
G 115 140 144 160
Manufacturers may optionally give additional information concerning the type of response
1)
exhibited by the detector, by adding the suffix S or R to the above categories . Detectors, which
are marked with the letter S or R as a suffix to the category marking, shall be tested in
accordance with the applicable test, specified in 5.4.1 or 5.4.2, and shall meet the requirements
of that test, in addition to the tests of Clause 5. Addition of a suffix shall be regarded as creating a
new category.
4.2 Operational reliability
4.2.1 Position of heat sensitive elements
The heat sensitive element(s) or at least part of it, except elements with auxiliary functions (e.g.
characteristic correctors), shall be at a distance ≥ 15 mm from the mounting surface of the point
heat detector. To confirm this, the point heat detector shall be tested in accordance with 5.2.1.
4.2.2 Individual alarm indication
4.2.2.1 Category A1, A2, B, C or D point heat detectors shall be provided with an integral red
visual indicator, by which the individual point heat detector, which released an alarm, can be
identified, until the alarm condition is reset. Where other conditions of the point heat detector
can be visually indicated, they shall be clearly distinguishable from the alarm indication, except
when the point heat detector is switched into a service mode. For detachable point heat
detectors the indicator may be integral with the base or the point heat detector head. The visual
indicator shall be visible from a distance of 6 m directly below the point heat detector, in an
1)
Detectors, with a suffix S to their category, do not respond below the minimum static response temperature,
applicable to their categories (see Table 1), even at high rates of rise of air temperature. Detectors with a suffix R to
their category, incorporate a rate-of-rise characteristic, which meets the response time requirements (see Table 4) for
high rates of rise of air temperature even when starting at air temperatures substantially below the typical application
temperature.
ambient light intensity up to 500 lx. To confirm this, the point heat detector shall be assessed in
accordance with 5.2.2.1
4.2.2.2 Category E, F or G point heat detectors shall be provided with either an integral red
indicator, or with another means for locally indicating the alarm status of the point heat
detector. To confirm this, the point heat detector shall be assessed in accordance with 5.2.2.2
NOTE The alarm condition is reset manually at the control and indicating equipment (see EN 54–2).
4.2.3 Connection of ancillary devices
Where the point heat detector provides for connections to ancillary devices (e.g. remote
indicators, control relays), open- or short-circuit failures of these connections shall not prevent
the correct operation of the point heat detector. To confirm this, the point heat detector shall be
assessed in accordance with 5.2.3.
4.2.4 Monitoring of detachable detectors
For detachable point heat 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. To confirm this, the point heat detector shall be assessed in
accordance with 5.2.4.
4.2.5 Manufacturer's adjustments
It shall not be possible to change the manufacturer's settings except by special means (e.g. a
special code or tool, or by breaking or removing a seal). To confirm this, the point heat detector
shall be assessed in accordance with 5.2.5.
4.2.6 On-site adjustment of response behaviour
If there is provision for on-site adjustment of the response behaviour of the point heat detector
then:
— for each setting, at which the manufacturer is stating a corresponding category, access to the
adjustment means shall only be possible by the use of a code or special tool or by removing
the point heat detector from its base or mounting;
— any other setting(s) which the manufacturer is not stating a corresponding category in
accordance to this standard, shall only be accessible by the use of a code or special tool, and
it shall be clearly marked on the point heat detector or in the associated data.
To confirm this, the point heat detector shall be assessed in accordance with 5.2.6.
NOTE These adjustments can be carried out at the point heat detector or at the control and indicating
equipment.
4.2.7 Software controlled detector (when provided)
4.2.7.1 General
For point heat detectors which rely on software control the requirements of 4.2.7.2, 4.2.7.3 and
4.2.7.4 are applicable.
4.2.7.2 Software documentation
4.2.7.2.1 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
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 point heat 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.
4.2.7.2.2 The manufacturer shall have available detailed design documentation. It shall
comprise at least the following:
a) an overview of the whole system configuration, 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;
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).
4.2.7.3 Software design
The software design shall have:
a) a modular structure;
b) the interfaces for manually and automatically generated data shall not permit invalid data to
cause error in the program operation;
c) provisions to avoid the occurrence of deadlock of the programme flow.
4.2.7.4 The storage of programs and data
The program 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
point heat detector.
Site-specific data shall be held in memory which will retain data for at least 2 weeks without
external power to the point heat detector, unless provision is made for the automatic renewal of
such data, following loss of power, within 1 h of power being restored.
To confirm this, the point heat detector shall be assessed in accordance with 5.2.7.
4.3 Nominal activation conditions/sensitivity
4.3.1 Directional dependence
The response time of the point heat detector shall not be unduly dependent on the direction of
airflow around the point heat detector. To confirm this, the point heat detector shall be tested in
accordance with 5.3.1.
4.3.2 Static response temperature
The point heat detector shall respond correctly to a slow rate of rise of air temperature. To
confirm this, the point heat detector shall be tested in accordance with 5.3.2.
4.3.3 Response times from typical application temperature
The point heat detector shall respond correctly over a range of rates of rise of air temperature.
To confirm this, the point heat detector shall be tested in accordance with 5.3.3.
4.3.4 Response times from 25 °C
Point heat detectors in a category with a typical application temperature above 25 °C (see
Table 1) shall not exhibit an abnormally fast response to normal increases in temperature.
To confirm this, the point heat detector shall be tested in accordance with 5.3.4.
NOTE The requirement for response time from 25 °C for category A1 or A2 point heat detectors is
already covered in 4.3.3.
4.3.5 Response times from high ambient temperature
The point heat detector shall function correctly at high ambient temperatures appropriate to the
anticipated service temperatures. To confirm this, the point heat detector shall be tested in
accordance with 5.3.5.
4.3.6 Reproducibility
The response times of the point heat detectors shall be within the given limits. To confirm this,
the point heat detector shall be tested in accordance with 5.3.6.
4.4 Response delay (response time)
4.4.1 Additional tests for suffix S detectors
Suffix S point heat detector shall not respond below the minimum static response temperature
applicable to the category of the point heat detector. To confirm this, the point heat detector
shall be tested in accordance with 5.4.1.
4.4.2 Additional tests for suffix R detectors
Suffix R point heat detector shall maintain the response requirements of its category for high
rates of rise of temperature starting from an initial temperature below the typical application
temperature applicable to the category marked on the point heat detector. To confirm this, the
point heat detector shall be tested in accordance with 5.4.2.
4.5 Tolerance to supply voltage - Variation in supply parameters
Within the specified range(s) of the supply parameters (e.g. voltage), the response time of the
point heat detector shall not be unduly dependent on these parameters. To confirm this, the
point heat detector shall be tested in accordance with 5.5.1.
4.6 Durability of Nominal activation conditions/sensitivity
4.6.1 Temperature resistance
4.6.1.1 Cold (operational)
The point heat detector shall function correctly at low ambient temperatures appropriate to the
anticipated service temperature. To confirm this, the point heat detector shall be tested in
accordance with 5.6.1.1
4.6.1.2 Dry heat (endurance)
The point heat detector shall withstand a high ambient temperature appropriate to its category.
To confirm this, the point heat detector shall be tested in accordance with 5.6.1.2.
This requirement is not applicable to category A1, A2 and B point heat detectors.
4.6.2 Humidity resistance
4.6.2.1 Damp heat, cyclic (operational)
The point heat detector shall function correctly at high relative humidities (with condensation),
which can occur for short periods in the anticipated service environment. To confirm this, the
point heat detector shall be tested in accordance with 5.6.2.1.
4.6.2.2 Damp heat, steady-state (endurance)
The point heat detector shall withstand the long term effects of humidity in the service
environment (e.g. changes in electrical properties of materials, chemical reactions involving
moisture, galvanic corrosion etc.). To confirm this, the point heat detector shall be tested in
accordance with 5.6.2.2.
4.6.3 Corrosion resistance: Sulphur dioxide (SO ) corrosion (endurance)
The point heat detector shall withstand the corrosive effects of sulphur dioxide as an
atmospheric pollutant. To confirm this, the point heat detector shall be tested in accordance with
5.6.3.1.
4.6.4 Vibration resistance
4.6.4.1 Shock (operational)
The point heat detector shall withstand mechanical shocks, which are likely to occur, albeit
infrequently, in the anticipated service environment. To confirm this, the point heat detector
shall be tested in accordance with 5.6.4.1.
4.6.4.2 Impact (operational)
The point heat detector shall withstand mechanical impacts upon its surface, which it may
sustain in the normal service environment, and which it can reasonably be expected to
withstand. To confirm this, the point heat detector shall be tested in accordance with 5.6.4.2.
4.6.4.3 Vibration, sinusoidal, (operational)
The point heat detector shall withstand vibration at levels considered appropriate to the normal
service environment. To confirm this, the point heat detector shall be tested in accordance with
5.6.4.3.
4.6.4.4 Vibration, sinusoidal (endurance)
The point heat detector shall withstand the long term effects of vibration at levels appropriate to
the service environment. To confirm this, the point heat detector shall be tested in accordance
with 5.6.4.4.
4.6.5 Electrical stability: Electromagnetic Compatibility (EMC), Immunity tests
(operational)
The point heat detector shall be immune to Electromagnetic influences. To confirm this, the
point heat detector shall be tested in accordance with 5.6.5.1.
5 Testing, assessment and sampling methods
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 EN 60068-1:1994 as follows:
temperature: (15 to 35) °C;
relative humidity: (25 to 75) %;
air pressure: (86 to 106) kPa.
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
point heat detectors to allow a fault signal to be recognized).
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
Unless otherwise stated, the tolerances for the environmental test parameters shall be as given
in the basic reference standards for the test (e.g. the relevant parts of EN 60068).
If a requirement or test procedure does not specify a tolerance or deviation limits, then
deviation limits of ± 5 % shall be applied.
5.1.5 Measurement of response time
The specimen, for which the response time is to be measured, shall be mounted in a heat tunnel
as described in 5.1.3 and Annex A. It shall be connected to suitable supply and monitoring
equipment in accordance with 5.1.2. The orientation of the specimen, relative to the direction of
airflow, shall be that which gave the maximum response time in the directional dependence test
5.3.1, unless otherwise specified.
Before the measurement, the temperature of the air stream and the specimen shall be stabilized
to the temperature specified in the applicable test procedure. The measurement is then made by
increasing the air temperature, in the heat tunnel, linearly with respect to time, at the rate of rise
specified in the applicable test procedure until the supply and monitoring equipment indicates
an alarm or until the upper limit of response time for the test is exceeded. During the
measurement the air flow shall be maintained at a constant mass flow, equivalent to
−1
(0,8 ± 0,1) m s at 25 °C, and the air temperature shall be controlled to within ± 2 K of the
nominal temperature required at any time during the test (see Annex A). The response time is
the time interval between the start of the temperature increase and the indication of an alarm
from the supply and monitoring equipment.
NOTE 1 Linear extrapolation of the stabilized and the increasing temperature against time lines may be
used to establish the effective start time of the temperature increase.
NOTE 2 Care should be taken not to subject point heat detectors to a damaging thermal shock when
transferring them to and from a stabilization or alarm temperature.
NOTE 3 Details and information concerning the design of the heat tunnel are given in Annexes A and C
5.1.6 Provi
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