oSIST prEN 54-22:2011

SLOVENSKI STANDARD
01-maj-2011
Sistemi za odkrivanje in javljanje požara ter alarmiranje - 22. del: Linijski toplotni
javljalniki
Fire detection and fire alarm system - Part 22 : Resettable line type heat detectors
Brandmeldeanlagen - Teil 22 : Rücksetzbare linienförmige Wärmemelder
Systèmes de détection et d'alarme incendie - Partie 22: Détecteurs de chaleur en ligne
réenclenchables
Ta slovenski standard je istoveten z: prEN 54-22
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
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2011
ICS 13.220.10
English Version
Fire detection and fire alarm system - Part 22 : Resettable line
type heat detectors
Systèmes de détection et d'alarme incendie - Partie 22: Brandmeldeanlagen - Teil 22 : Rücksetzbare linienförmige
Détecteurs de chaleur en ligne réenclenchables Wärmemelder
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 72.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 54-22:2011: E
worldwide for CEN national Members.

Contents Page
Foreword .4
Introduction .6
1 Scope .7
2 Normative references .7
3 Terms, definitions and abbreviations .8
3.1 Terms and definitions .8
4 Requirements . 10
4.1 General . 10
4.2 Nominal activation conditions/sensitivity . 12
4.3 Operational reliability . 12
4.4 Tolerance to supply voltage . 14
4.5 Performance parameters under fire conditions . 15
4.6 Durability . 16
5 Tests and assessments methods . 18
5.1 General . 18
5.2 Test procedures Operational reliability . 22
5.3 Tolerance to supply voltage . 24
5.4 Performance parameters under fire conditions . 25
5.5 Durability . 29
6 Evaluation of conformity . 51
6.1 General . 51
6.2 Initial type testing . 51
6.3 Factory production control . 52
6.4 Procedure for modifications . 56
6.5 One-off products, pre-production products, prototypes and products produced in very
low quantities . 57
Annex A (normative) Arrangement of the sensing element in the fire test room . 58
A.1 General . 58
A.2 Fire test room arrangement . 58
A.3 Sensing element outside the fire test room . 59
Annex B (normative) Flaming liquid test fires (TF6F, TF6 and TF6S) . 60
B.1 General . 60
B.2 Arrangement . 60
B.3 Ignition . 60
B.4 End of test condition . 61
B.5 Test validity criteria . 61
Annex C (normative) Test arrangement for the sensing element of linear heat detector in the heat
tunnel . 63
C.1 General . 63
C.2 Test arrangement for the sensing element . 63
Annex D (informative) Apparatus for mounting of the sensing element of linear heat detector in
the heat tunnel . 64
D.1 General . 64
D.2 Test apparatus . 64
Annex E (normative) Mounting of the sensing element of multipoint RLTHD in the heat tunnel . 65
E.1 General . 65
E.2 Mounting arrangement of multipoint sensing element . 65
Annex F (normative) Heat tunnel for response time and response temperature measurements . 67
F.1 General . 67
F.2 Description of the heat tunnel . 67
Annex G (informative) Construction of the heat tunnel . 68
G.1 General . 68
G.2 Heat tunnel construction . 68
Annex H (normative) Test arrangement for vibration tests for sensing element . 70
H.1 General . 70
H.2 Test setup . 70
Annex I (normative) Test apparatus for impact test on the sensing element . 71
I.1 General . 71
I.2 Test apparatus . 71
I.3 Test setup . 71
Annex J (informative) Information concerning fire tests for traffic tunnels . 74
J.1 General . 74
J.2 Application of RLTHD in traffic tunnels . 74
Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU
Construction Products Directive (89/106/EEC) . 75
ZA.1 Scope and relevant clauses . 75
ZA.2 Procedures for the attestation of conformity of resettable line-type heat detectors . 77
ZA.3 CE marking and labelling. 79
Bibliography . 82

Foreword
This document (prEN 54-22:2011) has been prepared by Technical Committee CEN/TC 72 “Fire detection
and fire alarm systems”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
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 detectors
Part 7: Smoke detectors – Point detectors using scattered light, transmitted light or ionization
Part 10: Flame detectors – 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
Part 15: Point detectors using a combination of detected phenomena
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: Resettable 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 (in preparation)
Part 28: Non-resettable line-type heat detectors (in preparation)
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
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.
Introduction
Resettable line-type heat detectors (RLTHD) have been incorporated into fire alarm systems for a
considerable number of years. These detectors are typically used in areas where point type heat detectors are
presented with challenging environmental characteristics and also where access to the detectors may
significantly influence the fire alarm system design.
This standard defines the minimum system functionality for RLTHD products. RLTHD are based upon many
unique operating principles. It is the intention of this standard to define common operating characteristics for
each type of RLTHD in conjunction with existing EN 54 detector standards, so that resettable line-type heat
detectors have a response behaviour comparable to that of point type heat detectors.
Due to the various applications for RLTHD, it is necessary to devise separate environmental classification
tests for the sensing element and the sensor control units of these systems. It is not the purpose of this
standard to define applications or how RLTHD should be used in applications. However, the standard
indicates two general fields of application, room protection and secondly local protection. The standard
defines separate response test classifications for these two fields.
Generally there are two functional principles employed by RLTHD: non-integrating and integrating systems.
Therefore separated subclasses have been created for non integrating systems and for integrating systems.

1 Scope
This European Standard applies to Resettable Line type Heat Detectors consisting of a sensing element using
an optical fibre, a pneumatic tube or an electrical sensor cable connected to a sensor control unit, either
directly or through an interface module to a control and indicating equipment intended for use in fire detection
and fire alarm systems installed in and around buildings and civil engineering works.
This European Standard specifies the requirements and performance criteria, the corresponding test methods
and the evaluation of conformity of the product to the standard.
This European Standard also covers Resettable Line type Heat Detectors intended for use in the local
protection of plant and equipment.
Resettable Line type Heat Detectors with special characteristics and developed for specific risks are not
covered by this standard.
This European Standard does not cover line-type heat detectors that are based on non-resettable, fixed
temperature electrical cables (so called “digital” systems).
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 54-1:1996, Fire detection and fire alarm systems — Part 1: Introduction
EN 54-2:1997, Fire detection and fire alarm systems — Part 2: Control and indicating equipment
EN 54-2:1997/A1:2006, Fire detection and fire alarm systems — Part 2: Control and indicating equipment
EN 54-4:1997, Fire detection and fire alarm systems — Part 4: Power supply equipment
EN 54-4:1997/A1:2002, Fire detection and fire alarm systems — Part 4: Power supply equipment
EN 54-4:1997/A2:2006, Fire detection and fire alarm systems — Part 4: Power supply equipment
EN 54-5:2000; Fire detection and fire alarm systems — Part 5: Point-type heat detectors
EN 54-5:2000/A1:2002; Fire detection and fire alarm systems — Part 5: Point-type heat detectors
EN 54-7:2000; Fire detection and fire alarm systems — Part 7: Point-type smoke detectors
EN 54-7:2000/A1:2002; Fire detection and fire alarm systems — Part 7: Point-type smoke detectors
EN 54-7:2000/A2:2006; Fire detection and fire alarm systems — Part 7: Point-type smoke detectors
EN 50130-4:1995, Alarm systems — Part 4: Electromagnetic compatibility — Product family standard:
immunity requirements for components of fire, intruder and social alarm systems
EN 50130-4/A1:1998, Alarm systems — Part 4: Electromagnetic compatibility — Product family standard:
immunity requirements for components of fire, intruder and social alarm systems
EN 50130-4/A2:2003, Alarm systems — Part 4: Electromagnetic compatibility — Product family standard:
immunity requirements for components of fire, intruder and social alarm systems
EN 60068-1:1994, Environmental testing — Part 1: General and guidance
EN 60068-2-1:2007, Environmental testing — Part 2-1: Tests; Tests A: cold
EN 60068-2-2:1993 +A1:1993, Environmental testing — Part 2: Tests; Test B: dry heat
EN 60068-2-27:1993, Environmental testing — Part 2-27: Tests, Test Ea: shock
EN 60068-2-30:2005, Environmental testing — Part 2-30: Variant 1 test cycle and controlled recovery
conditions: Damp heat, cyclic
EN 60068-2-42:2003, Environmental testing — Part 2-42: Tests, Test Kc: Sulphur dioxide, steady state
EN 60068-2-6:1995, Environmental testing — Part 2: Tests - Test Fc: Vibration, sinusoidal
EN 60068-2-75:1997, Environmental testing — Part 2-75: Tests, Test Eh for test Ehb: impact
EN 60068-2-78:2001, Environmental testing — Part 2-78: Tests, Test Cab: Damp heat, steady state
3 Terms, definitions and abbreviations
For the purposes of this document the terms and definitions given in EN 54-1:1996 and the following apply.
3.1 Terms and definitions
3.1.1
analogue detector
detector, the sensing element of which produces an output signal functionally related to the heat sensed
3.1.2
digital detector
detectors, the sensing element of which can be either of two states: standby or alarm
NOTE In this type of detector the alarm threshold is inherent to the construction of the sensing element.
3.1.3
functional unit
part of a line-type heat detector in addition to the sensor control unit and the sensing element which is
essential for the function of the line-type heat detector
EXAMPLE Terminating device, filter, switch.
3.1.4
integrating detector
detectors for which the response to temperature is summed in some way, (not necessarily linearly), along a
length of the sensing element. For such detectors, the output to the sensor control unit is therefore a function
of the temperature distribution along the length of the sensing element
EXAMPLE Pneumatic systems, analogue detectors.
3.1.5
linear heat detector
detectors which respond to heat applied to any point along the length of the sensing element
3.1.6
line-type heat detector
LTHD
detector which responds to heat sensed in the vicinity of a continuous line
NOTE A line-type heat detector may consist of a sensor control unit, a sensing element and functional units.

3.1.7
local protection application
application in which the sensing element is installed in relatively close proximity to the potential fire risk
EXAMPLE pipelines, conveyor belts, combustion engines/turbines, rolling stock, transformers, process dryers, cable
trays, escalators, chemical process equipment, electrical equipment cabinets, ventilation systems (dust collector, hood
extractor, etc.), switch gear (e.g. printing press), etc.
3.1.8
multipoint heat detector
detectors that contain multiple discrete temperature sensors, which are separated by a distance of no more
than 10 m, embedded within the sensing element (see 3.1.13)
3.1.9
non-resettable line-type heat detectors
NLTHD
LTHD which can only respond once
3.1.10
non-integrating detector
detectors for which the output signal is depending on local temperature effects but not on the integration of the
whole temperature distribution along the sensing element
EXAMPLE Fibre optics systems, digital detectors.
3.1.11
resettable line-type heat detectors
RLTHD
LTHD which is able to return to its quiescent condition after a response
3.1.12
room protection application
application in which the sensing element is installed at a distance from the potential fire hazard close to the
ceiling or roof of the area to be protected
EXAMPLE car parks (open or closed), road/rail/metro tunnels, floor/ceiling voids, elevator shafts, cold stores,
warehouses, heritage buildings, aircrafts hangars, spray shops, chemical storehouses, ammunition depots, refineries,
silos, etc.
NOTE More information on the protection of traffic tunnels is given in the Annex J.
3.1.13
sensing element
heat sensing part of the line-type heat detector which can be a fibre optic cable, a pneumatic tube or an
electrical cable
NOTE A sensing element may consist of different segments separated e.g. by functional units or splices.
3.1.14
sensor control unit
unit that supervises the sensing element and communicates to the control and indicating equipment
NOTE The unit can be remote or an integral part of the control and indicating equipment as defined by EN 54-2.
4 Requirements
4.1 General
4.1.1 Compliance
In order to comply with this standard, resettable line-type heat detectors shall meet the requirements of
Clause 4, which shall be verified by visual inspection or engineering assessment as described in Clause 5 and
shall meet the requirements of the tests.
4.1.2 Heat response classes
4.1.2.1 Heat response for room protection application
RLTHD for room protection shall comply with at least one heat response class of Table 1 or Table 2.
NOTE Test fires TF6S, TF6 and TF6F are specified in Annex B.
Table 1 —Heat response, room protection for non-integrating RLTHD
Heat Typical Maximum Minimum Maximum TF6S TF6 TF6F
response application application static static response time response time response time
class temperature temperature response response
Lower Upper Lower Upper Lower Upper
temperature temperature
value value value value value value
°C °C °C °C
s s s s s s
A1N 25 50 54 65 50 400 30 210 20 130
A2N 25 50 54 70 120 600 60 300 40 180
NOTE For non-integrating RLTHD the static response temperature test is performed with a part of 10 m of sensing
element and the maximum ambient temperature test is performed with the maximum length of sensing element as specified
by the manufacturer.
Table 2 —Heat response, room protection for integrating RLTHD
Heat Typical Maximum Minimum Maximum TF6S TF6 TF6F
response application application static static
response time response time response time
class temperature temperature response response
Lower Upper Lower Upper Lower Upper
temperature temperature
value value value value value value
°C °C °C °C
s s s s s s
A1I 25 50 54 65 50 400 30 210 20 130
A2I 25 54 70 120 600 60 300 40 180
NOTE For integrating RLTHD the static response temperature test and the maximum ambient temperature test are
performed with the maximum length of sensing element as specified by the manufacturer.

4.1.2.2 Heat response for local protection application
RLTHD for local protection shall comply at least to one heat response class of Table 3 or Table 4.
Table 3 —Heat response local protection for non-integrating RLTHD
Heat Typical Maximum Minimum static Maximum static
response application application response response
class temperature temperature temperature temperature
°C °C °C °C
65 69
BN 40 85
CN 55 84 100
DN 70 99 115
EN 85 114 130
FN 100 129 145
GN 115 144 160
NOTE For non-integrating RLTHD the static response temperature test is performed with a part
of 10 m of sensing element and the maximum ambient temperature test is performed with the
maximum length of sensing element as specified by the manufacturer.

Table 4 —Heat response local protection for integrating RLTHD
Heat response Typical Maximum Minimum static Maximum static
class application application response response
temperature temperature temperature temperature
°C °C °C °C
65 69
BI 40 85
CI 55 80 84 100
DI 70 95 99 115
EI 85 110 114 130
FI 100 125 129 145
GI 115 140 144 160
NOTE For integrating RLTHD the static response temperature test and the maximum ambient
temperature test are performed with the maximum length of sensing element as specified by the
manufacturer.
4.1.3 Environmental groups
Different environmental groups are necessary to reflect the different service environment of the components of
a line-type heat detector:
The sensing element shall be classified either environmental group II or III.
The sensor control unit and the functional unit shall be classified either environmental group I, II or III.
NOTE Environmental group I covers equipment likely to be installed indoors in commercial/industrial premises but for
which the avoidance of extreme environmental conditions can be taken into account in the selection of the mounting site.
Environmental group II covers equipment likely to be installed indoors in commercial/industrial premises in all general
areas. Environmental group III covers equipment which is intended to be installed out of doors.
4.2 Nominal activation conditions/sensitivity
4.2.1 Individual alarm indication
Each sensor control unit shall be provided with an integral latched red visual indicator, by which the individual
sensor control unit, which released an alarm, can be identified, until the alarm condition is reset. Where other
conditions of the sensor control unit can be visually indicated, they shall be clearly distinguishable from the
alarm indication, except when the sensor control unit is switched into a service mode. The visual indicator
shall be visible from a distance of 6 m in the direct line of sight perpendicular to the surface, in an ambient
light intensity up to 500 lux.
If more than one sensing element is connected to the sensor control unit, there shall be separate alarm
indication for each sensing element.
4.2.2 Signalling
The line-type heat detector shall signal the alarm and fault status to the control and indicating equipment.
If more than one sensing element is connected to a sensor control unit, there shall be separate alarm and fault
signals for each sensing element.
The following fault condition test methods apply:
a) Sensing element faults (see 5.2.3)
b) Low voltage (see 5.3.2)
4.3 Operational reliability
4.3.1 Connection of ancillary devices
Where the RLTHD provides for connections to ancillary devices (e.g. remote indicators, RS 485 interface),
open or short-circuit failures of these connections shall not prevent the correct operation of the RLTHD.
4.3.2 Manufacturer's adjustments
It shall not be possible to change the manufacturer's settings except by special means (e.g. the use of a key,
a code or a special tool or by breaking or removing a seal).
4.3.3 Requirements for software controlled detectors
4.3.3.1 General
For RLTHD, which rely on software control in order to fulfil the requirements of this standard, the requirements
of 4.3.3.2, 4.3.3.3 and 4.3.3.4 shall be met.
4.3.3.2 Software documentation
4.3.3.2.1 The manufacturer shall submit documentation, which gives an overview of the software design.
This documentation shall provide sufficient detail for the design to be inspected for compliance with this
standard and shall include the following as a minimum:
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,
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.
4.3.3.2.2 The manufacturer shall have available detailed design documentation, which only needs to be
provided if required by the testing laboratory. 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).
4.3.3.3 Software design
In order to ensure the reliability of the RLTHD, 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.
4.3.3.4 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
RLTHD.
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.
4.3.4 Repeatability
The RLTHD shall function correctly, even after a number of alarm conditions as specified in 5.2.1.
4.3.5 Reproducibility
The response time of the RLTHD shall not vary unduly from specimen to specimen as specified in 5.2.2.
4.3.6 Sensing element fault
The RLTHD shall generate fault conditions as specified in 5.2.3.
4.3.7 On-site adjustment of response behaviour
The effective response behaviour of a RLTHD is dependent upon both the sensitivity settings of the sensor
control unit and the heat sensing element. Many types of RLTHD therefore have facilities to adjust the
sensitivity of the RLTHD to suit the application.
If there is provision for on-site adjustment of the response behaviour 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 access to the adjustment means shall only be possible
by the use of a code or special tool;
b) 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 sensor control unit or at the control and indicating equipment.
4.4 Tolerance to supply voltage
4.4.1 Variation in supply parameters
The RLTHD shall function correctly within the specified range(s) of the supply parameters as specified in 5.3.1
4.4.2 Low voltage fault
The RLTHD shall signal a fault condition when its input power supply falls below the minimum voltage
specified by the manufacturer as specified in 5.3.2

4.5 Performance parameters under fire conditions
4.5.1 Fire sensitivity for room protection application
Class A1N, A1I, A2N and A2I RLTHD (for room protection application) shall have an adequate sensitivity to
the heat release of a real test fire as required for general application in fire detection systems as specified in
4.1.2.1. and tested as specified in 5.4.1.
4.5.2 Static response temperature test
The RLTHD shall have, depending on its classification, an adequate sensitivity to a slow rate of rise of
temperature as specified in 4.1.2. and tested as specified in 5.4.2.
4.5.3 Marking
4.5.3.1 General
The marking shall be visible during installation and shall be accessible during maintenance.
The markings shall not be placed on easily removable parts like screws.
NOTE Where Annex ZA.3 requires the CE marking to be accompanied by the same information as required by this
clause, the requirements of this clause are met
4.5.3.2 Marking of sensor control unit
The sensor control unit shall be clearly marked with the following information:
a) the number and date of this standard;(i.e. EN 54-22:2010)
b) the class(es) of the RLTHD (e.g. A1N, A2N, BN, CN, or A1I - GI).
c) environment classification (Group I, II or III);
d) the name or trademark of the manufacturer or supplier;
e) the model designation (type or number);
f) the wiring terminal designations;
g) some mark(s) or code(s) (e.g. serial number or batch code), by which the manufacturer can identify, at
least, the date or batch and place of manufacture, and the version number(s) of any software, contained
within the sensor control unit.
4.5.3.3 Marking of sensing element
Each sensing element shall be marked with the following information:
a) name or trademark of the manufacturer or supplier;
b) model designation (type or number);
c) environment classification (Group II or III);
d) some mark(s) or code(s) (e.g. serial number or batch code), by which the manufacturer can identify, at
least, the date or batch and place of manufacture, and the version number(s) of any software, contained
within the sensing element, if applicable.
e) marking of sensor location and orientation (if applicable, e.g. for multipoint heat detector);
NOTE If it is not possible to mark directly on the sensing element then the use of at least one label securely fixed to
the sensing element is permitted.
4.5.3.4 Marking of functional units
Each functional unit shall be marked with the following information:
a) the number and date of this standard (i.e. EN 54-22:2010);
b) name or trademark of the manufacturer or supplier;
c) model designation (type or number);
d) environment classification (Group I, II or III);
e) the wiring terminal designations;
f) some mark(s) or code(s) (e.g. serial number or batch code), by which the manufacturer can identify, at
least, the date or batch and place of manufacture, and the version number(s) of any software, contained
within the functional unit.
4.5.4 Data
RLTHD shall either be supplied with sufficient technical, installation and maintenance data to enable their
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 with each RLTHD.
To understand correct operation of the detectors, additional data shall be available that describe the
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 sensor control unit
and/or control and indicating equipment, etc.
Installation and maintenance data shall include an in situ test method to ensure that detectors operate
correctly when installed.
For integrating RLTHD the manufacturer shall declare the relation between the maximum application
temperature and the corresponding sensing element length for each class for which compliance is claimed.
NOTE Additional information could be required by organisations certifying that detectors produced by a manufacturer
conform to the requirements of this standard.
4.6 Durability
4.6.1 Temperature resistance
4.6.1.1 Dry heat (operational) sensor control unit
The sensor control unit of the RLTHD shall function correctly, at high ambient temperatures as specified in
5.5.1.1.
4.6.1.2 Maximum ambient temperature test (sensing element)
The RLTHD shall function correctly even if the sensing element is exposed to high ambient temperatures as
specified in 5.5.1.2.
4.6.1.3 Dry heat (endurance) for sensing element
The sensing element of the RLTHD shall be capable of withstanding long term exposure to high temperature
as specified in 5.5.1.3.
4.6.1.4 Cold (operational) for sensing element
The sensing element of the RLTHD shall function correctly at low ambient temperatures as specified in 5.5.1.4.
4.6.1.5 Cold (operational) for sensor control unit
The sensor control unit of the RLTHD shall function correctly at low ambient temperatures as specified in
5.5.1.5.
4.6.2 Humidity resistance
4.6.2.1 Damp heat, cyclic (operational) for sensing element
The sensing element of the RLTHD shall function correctly at a high level of humidity as specified in 5.5.2.1.
4.6.2.2 Damp heat, cyclic (operational) for sensor control
The sensor control unit of the RLTHD shall function correctly at a high level of humidity as specified in 5.5.2.2.
4.6.2.3 Damp heat, steady state (endurance)
The RLTHD shall be capable of withstanding long term exposure to a high level of continuous humidity as
specified in 5.5.2.3.
4.6.2.4 Damp heat, steady state (operational) for sensor control unit
The sensor control unit of the RLTHD shall function correctly at a high level of humidity as specified in 5.5.2.4.
4.6.2.5 Damp heat, cyclic (endurance)
The RLTHD shall be capable withstanding the effect of cyclic humidity levels as specified in 5.5.2.5.
4.6.3 Shock and vibration resistance
4.6.3.1 Shock (operational) for sensor control unit
The sensor control unit of the RLTHD shall operate correctly when submitted to mechanical shocks as
specified in 5.5.3.1.
4.6.3.2 Impact (operational) for sensor control unit
The sensor control unit of the RLTHD shall operate correctly when submitted to mechanical impacts as
specified in 5.5.3.2.
4.6.3.3 Impact (operational) for sensing element
The sensing element of the RLTHD shall operate correctly when submitted to mechanical impacts as specified
in 5.5.3.3.
4.6.3.4 Vibration, sinusoidal (operational) for sensor control unit
The sensor control unit of the RLTHD shall operate correctly when submitted to sinusoidal vibration as
specified in 5.5.3.4.
4.6.3.5 Vibration, sinusoidal (operational) for sensing element
The sensing element of the RLTHD shall operate correctly when submitted to sinusoidal vibration as specified
in 5.5.3.5.
4.6.3.6 Vibration, sinusoidal (endurance) for sensor control unit
The sensor control unit of the RLTHD shall be capable of withstanding the effect of sinusoidal vibration as
specified in 5.5.3.6.
4.6.3.7 Vibration, sinusoidal (endurance) for sensing element
The sensing element of the RLTHD shall be capable of withstanding the effect of sinusoidal vibration as
specified in 5.5.3.7.
4.6.4 Corrosion resistance
4.6.4.1 Sulphur dioxide (SO ) corrosion (endurance) for sensing element
The sensing element of the RLTHD shall be capable of withstanding exposure to an SO corrosive
atmosphere as specified in 5.5.4.1.
4.6.4.2 Sulphur dioxide (SO2) corrosion (endurance) for sensor control unit
The sensor control unit of the RLTHD shall be capable of withstanding exposure to an SO corrosive
atmosphere as specified in 5.5.4.2.
4.6.5 Electrical stability
4.6.5.1 Electromagnetic immunity
The RLTHD shall operate correctly when submitted to electromagnetic interference as specified in 5.5.5.1.
5 Tests and assessments 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 specified in EN 60068-1:1994 as
follows:
a) temperature: (15 to 35) °C;
b) relative humidity: (25 to 75) %;
c) air pressure: (86 to 106) kPa.
oSIST prEN
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