EN 54-25 Fire detection and fire alarm systems – Part 25: Components using radio
1 Scope
This European Standard specifies requirements, test methods and performance criteria for components used in fire alarms systems, installed in and around buildings, which use radio frequency links (RF links) to communicate. It also provides requirements for the evaluation of conformity of the components to the requirements of this European Standard.
Where components work together and this requires knowledge of the system design, this document also specifies requirements on the system.
When the fire detection and fire alarm systems (FDAS) use wired and RF links, the relevant parts of EN 54 apply together with this document. Requirements relevant to wire links are superseded or modified by those included in this European Standard.
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 54-2, Fire detection and fire alarm systems — Part 2: Control and indicating equipment EN 54-4, Fire detection and fire alarm systems — Part 4: Power supply equipment EN 54-5, Fire detection and fire alarm systems — Part 5: Heat detectors — Point detectors EN 54-11, Fire detection and fire alarm systems — Part 11: Manual call points
EN 50130-4, Alarm systems — Part 4: Electromagnetic compatibility — Product family standard: Immunity requirements for components of fire, intruder and social alarm systems
EN 60068-2-1, Environmental testing — Part 2-1: Tests — Tests A: Cold (IEC 60068-2-1:2007)
EN 60068-2-2, Basic environmental testing procedures — Part 2-2: Tests — Tests B: Dry heat (IEC 60068-2-2:1974 + IEC 60068-2-2A:1976)
EN 60068-2-6, Environmental testing — Part 2-6: Tests — Tests Fc: Vibration (sinusoidal) (IEC 60068-2¬6:1995 + Corrigendum 1995)
EN 60068-2-27, Basic environmental testing procedures — Part 2: Tests — Test Ea and guidance: Shock (IEC 60068-2-27:1987)
EN 60068-2-30, 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, Environmental testing — Part 2-42: Test methods — Test Kc: Sulphur dioxide test for contacts and connections (IEC 60068-2-42:2003)
EN 60068-2-78, Environmental testing — Part 2-78: Tests — Test Cab: Damp heat, steady state (IEC 60068-2-78:2001)
EN 300113-1 V 1.4.1:2002, Electromagnetic compatibility and Radio spectrum Matters (ERM) — Land mobile service — Radio equipment intended for the transmission of data (and/or speech) using constant or non- constant envelope modulation and having an antenna connector — Part 1: Technical characteristics and methods of measurement
EN 300220-1 V 1.3.1:2000, Electromagnetic compatibility and Radio spectrum Matters (ERM) — Short range devices — Radio equipment to be used in the 25 MHz to 1000 MHz frequency range with power levels ranging up to 500 mW — Part 1: Technical characteristics and test methods
EN ISO 9001, Quality management systems — Requirements (ISO 9001:2000)
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in the relevant part of EN 54 and the following apply.
3.1.1 antenna
element of a radio component of the fire detection and fire alarm system (FDAS) that allows coupling between the component and the media where radio frequency (RF) waves are propagated
3.1.2
assigned band
frequency band within which the equipment is authorised to operate
3.1.3
site attenuation
degradation of the RF signal due to either path loss or a change in the environment of the FDAS after its installation
3.1.4
autonomous power source
independent power supply equipment (i.e. without any link with the public power supply or an equivalent system) not rechargeable during operation and able by itself to allow the supplied component to run
3.1.5
base station
transce iver in the system which communicates with a certain number of components
3.1.6 : collision
simulta neous transmissions, from two or more transmitters belonging to the same system, of sufficient signal strength to cause, by mutual interaction, corruption or obliteration of the information carried by the RF signals
3.1.7
compatibility
capacity of a component of the system to operate with another component of this system, in the limits specified by the manufacturer and by the applicable product standard if this standard exists and in specified configurations of the system
3.1.8
fire detection and fire alarm system FDAS
group of components including a CIE which, when arranged in (a) specified configuration(s), is capable of detecting and indicating a fire, and giving signals for appropriate action
[EN 54-13:2005, definition 3.1.7]
3.1.9
identification code
part of a message used to identify a transmitting RF communication device belonging to the system
3.1.10
intermediate element
device connected to a transmission path of a fire detection and fire alarm system, used to receive and/or transmit signals necessary for the operation of the fire detection and fire alarm system
3.1.11
manufacturer
natural or legal person, who places the product on the market under his own name
3.1.12
radio frequency link RF link
means of communication between at least two points, using RF wave propagation
54.
3.1.13 radio part
component or part of the component incorporating the receiver and/or transmitter
3.1.14 receiver
device which receives the RF energy corresponding to a RF link
RF interference
RF transmission from any other source other than any component of the FDAS that may cause corruption or obliteration of wanted signals and not conforming to the definition of collision or message substitution
3.1.15 service life
period of useful life of an autonomous power source under specified conditions
3.1.16
special tool
device not normally carried by the public (e.g. a key), normally provided by the manufacturer and which is used for opening the enclosure of the component to detach the antenna
3.1.17 transmitter
device which generates the RF energy necessary for a RF link
3.2 Abbreviations
For the purposes of this document, the following abbreviations apply.
4 System requirements
4.1 General
The requirements of this document shall be applied, together with requirements of the relevant part of EN 54, where the radio-linked component has the same function as the component covered by that part and when not otherwise specified in this European Standard.
For example, an RF linked component having the function of a heat detector shall comply with EN 54-5 and a component having the function of a manual call point shall comply with EN 54-11.
4.2 Radio frequency links 4.2.1 Immunity to site attenuation
The manufacturer shall provide means either in the component itself or by the system configuration to ensure that a site attenuation, which may be caused by influences for different reasons on site, may not affect the RF link adversely in a way that communication between components is not possible. This reserve of site attenuation shall be specified as follows:
a) at least 10 dB up to frequencies of 10 MHz;
b) for frequencies of > 10 MHz as calculated in Annex B.
The manufacturer shall provide the necessary documentation and/or means for the assessment which permits the full functionality of the component to be assessed. If these means are a part of the component, the user shall not be able to interfere with these means.
The test includes verification by an assessment and shall be carried out in accordance with 8.2.2.
4.2.2 Alarm signal integrity
The components of the system shall use a transmission protocol on the transmission path and/or the RF link to ensure that no alarm message is lost.
The test shall be carried out in accordance with 8.2.3.
4.2.3 Identification of the RF linked component
4.2.3.1 Each RF linked component shall be identified by an individual identification code as belonging to one specific FDAS.
4.2.3.2 The manufacturer shall provide means to ensure that a RF linked component shall not be accepted by other FDAS.
The test shall be carried out in accordance with 8.2.4.
4.2.3.3 The manufacturer shall provide the necessary documentation and/or means for the assessment of this requirement.
4.2.4 Receiver performance
The receiver shall meet the requirements given in Table 1.
4.2.5 Immunity to interference
4.2.5.1 General
The following kind of interferences on the RF link shall be covered:
4.2.5.2 Availability of RF link in two or more technically similar systems coming from the same manufacturer
In the case of two or more technically similar systems coming from the same manufacturer operating within the radio range it shall be ensured that the RF links do not mutually impede one another.
The manufacturer shall specify the means. The means shall be suitable to ensure the availability of all parts of the system in all expected system configurations.
The test shall be carried out in accordance with 8.2.6.
4.2.5.3 Availability of the RF link in the presence of other band users
The manufacturer shall take measures to ensure that signal transmission is possible even if other users are working in the same band.
These measures shall ensure that an external user who uses the maximum permitted limits in the assigned band or sub-band, such as bandwidth and duty cycle, does not cause interference.
The test shall be carried out in accordance with 8.2.7.
4.2.5.4 Integrity of the RF link
The application of one of the interfering RF signals defined in 8.2.7 to one of the FDAS receivers shall cause neither an alarm condition nor a fault warning condition at the CIE.
4.2.6 Loss of communication
The loss of the ability of the system to transmit a message of any RF linked component to the CIE within in EN 54-2 defined periods shall be recognized in less than 300 s and shall be indicated in less than 100 s.
The test shall be carried out in accordance with 8.2.8.
4.2.7 Antenna
The antenna or its cable shall only be detachable by opening the enclosure of the component or by using special tools provided by the manufacturer.
The test shall be carried out in accordance with 8.2.9.
5 Components requirements
5.1 Compliance
In order to comply with this standard the components shall meet the requirements of this clause which shall be verified by visual inspection or engineering assessment, shall be tested as described in Clause 8 and shall meet the requirements of the tests.
5.2 General
5.2.1 All components shall meet the requirements of the relevant part of EN 54 and the following additional specific requirements, including the transmission paths and/or radio links.
5.2.2 The component shall be designed that the removal from its base and/or point of installation are detected and indicated as a fault.
5.2.3 Components that rely on software control in order to fulfil the requirements of this specification sh all comply with the relevant part of EN 54.
5.3 Power supply equipment
5.3.1 The components shall be powered by:
a) an autonomous power source, e.g. a primary battery, or
b) a power supply equipment in accordance with EN 54-4.
5.3.2 All components powered by an autonomous power source shall comply with the following requirements:
a) the autonomous power source shall be within the enclosure of the component;
b) the autonomous power source shall allow normal operation of the component for a minimum period of 36 months.
The manufacturer shall declare the type of the autonomous power source and its service life for the component in normal operation. The service life shall be demonstrated by a statement of calculation. This calculation shall take into account the mean consumption and voltage under quiescent and at standard atmospheric conditions. The product of the specified discharge time of 36 months and the mean discharge current shall not be greater than 85 % of the rated capacity of the power source.
he mean consumption shall be calculated based on the electronic element of the circuit.
Where calculation is not practical, the mean consumption shall be measured at nominal voltage for at least 1 h under quiescent operation after the stabilisation period given by the manufacturer.
The verification of this calculation shall be made as defined in 8.3.3. Annex C gives an example for the calculation of the service life of the autonomous power source.
5.3.3 All components powered by an autonomous power source shall be able to transmit a fault signal (low power) before the power source fails. The following conditions shall be taken into account:
a) the component shall be capable of generating and transmitting a fault signal within 60 min after replacing a good or new autonomous power source by a preconditioned power source representing a discharged power source at the end of its service life;
b) the component shall be capable of operating as intended when it is activated using the preconditioned power source representing a discharged power source at the end of its service life;
c) the components shall keep the alarm condition and/or another activated condition for at least 30 min (where alarm condition is not applicable).
The procedure to verify this requirement is specified in 8.3.4.
5.3.4 The loss of the power source shall be indicated as a fault signal from point in accordance with EN 54-2. Where several power sources are used for different functions in one component, the fault signal shall be given for each power source, see 5.3.3.
5.3.5 The component shall either be designed to make polarity reversal impossible or, if not, the polarity of the connections of the power source shall be identifiable and the polarity reversal shall not damage the component.
The procedure to verify the reversal of polarity is specified in 8.3.5.
5.4 Environmental related requirements
5.4.1 General
Components shall be subjected to the environmental tests defined in the relevant part of EN 54. The functional tests of the radio part of the component before and after the environmental treatment shall be carried out in accordance with 8.3.
5.4.2 General test procedure
Unless otherwise stated, the components of the FDAS containing the transmitter and the receiver respectively shall be mounted in the radio frequency shielded test equipment as described in Annex A.
When testing the component transmitting the alarm signal, it shall be tested together with a typical component receiving the alarm signal and vice versa.
The measurements of the attenuation values A shall be always carried out with the component mounted in the test equipment, and with the fixtures closed correctly. However, during some of the environmental exposures the fixtures shall be opened or the equipment under test shall be taken out of the fixture.
5.4.3 Provision for testing
The manufacturer shall provide a sufficient number of specimens for testing. The required number mentioned in Table 2 is dependent on the type of component to be tested.
The specimens submitted shall be deemed representative of the manufacturer’s normal production with regard to their construction and calibration. Where specimens comprise at least two parts: a base (socket) and a head (body) and the radio part and the power supply are located only in one of these parts, only this part shall be tested in accordance with this European Standard. The other part is used to trigger the radio part.
6 Documentation
The manufacturer shall prepare the documentation to evaluate the compatibility in the configuration(s) specified by the manufacturer. This documentation shall include at least the following:
The documentation of the input/output devices shall comply with the requirements of this clause.
The input/output devices shall be delivered with technical instructions and sufficient installation and maintenance information to allow their setting and their operation, or, if all of this information is not provided with each input/output device, the reference to the appropriate documents shall be indicated on each device or given with it.
For an efficient operation of the input/output device, this documentation shall detail the requirements for the correct processing of the signals of the input/output device. This can be done by a detailed technical specification or by a reference to an adequate processing protocol or by a reference to the list of CIE that can be connected etc.
7 Marking
The marking shall be in accordance with the marking requirements of the relevant part of EN 54. The element containing radio part shall be additionally clearly marked with:
a) the number of this European Standard, i.e. EN 54-25;
b) marking required by other regulations;
The element containing an autonomous power source shall be additionally clearly marked with:
c) the type and the reference of the power source(s) recommended by the manufacturer. These indications shall be visible during its replacement.
8 Tests
8.1 General requirements
8.1.1 General
The combination of the tests in accordance with the other parts of EN 54 with the tests required in this European Standard is permitted.
8.1.2 Standard atmospheric conditions for testing
Unless otherwise stated in the test procedures the conditions defined in the relevant part of EN 54 shall apply.
8.1.3 Operating conditions for tests
If a test method requires a specimen to be operational, then the specimen shall be powered as required by the manufacturer and shall be connected to a suitable 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.
The details of the powered and of the monitoring equipment, as well as the alarm criteria used, shall be given in the test report.
8.1.4 Mounting and orientation
The mounting and orientation requirements defined in the relevant part of EN 54 shall apply.
8.1.5 Tolerances
The requirements for tolerances defined in the relevant part of EN 54 shall apply.
8.2.2 Test for immunity to site attenuation
8.2.2.1 Object
To demonstrate that the appropriate RF link fulfils the requirements defined in 4.2.1 in a medium free from interference and in the relevant frequency band.
8.2.2.2 Test procedure
In accordance with the manufacturer’s documentation the requirement of 4.2.1 shall be verified by engineering assessment.
8.2.2.3 Requirements
The assessment shall indicate that the requirements of 4.2.1 are fulfilled.
8.2.3 Test for alarm signal integrity
8.2.3.1 Object
To demonstrate that an alarm message to or from a component is not lost due to collisions and/or RF link occupation and the system complies with the requirements defined in 4.2.2.
8.2.3.2 Procedure
10 components shall be simultaneously triggered to transmit or receive alarm messages by means provided by the manufacturer. If the system capacity is less than 10 components, the maximum number of components shall be triggered.
8.2.3.3 Requirements
The first alarm message shall be indicated within 10 s and the last alarm message within 100 s. No alarm message shall be lost.
8.2.4 Test for identification of RF linked components
8.2.4.1 Object
To demonstrate, that the component complies with the requirements of 4.2.3.
8.2.4.2 Procedure
Verification of the documentation provided by the manufacturer that the requirements in accordance with 4.2.3.1 and 4.2.3.2 are fulfilled.
8.2.4.3 Requirements
The manufacturer shall show that the identification of the RF linked component complies with the requirements defined in 4.2.3.
The probability that the RF linked component is identified and accepted as belonging to another system from the same system manufacturer unintended to receive shall be less than 1:1 000 000.
8.2.5 Test for the receiver performance
8.2.5.1 Object
To demonstrate, that the component complies with the requirements of 4.2.4.
8.2.5.2 Test procedure
The characteristics shall be tested in accordance with Table 4.
8.2.5.3 Requirements
The requirements in accordance with the test procedures as given in Table 4 shall be fulfilled.
8.2.6 Test for mutual disturbance between systems of the same manufacturer
8.2.6.1 Object
To demonstrate that the component complies with the requirements of 4.2.5.2 and to demonstrate the ability of RF link to convey signals even when many radio components within systems of the same manufacturer and the same system type work in a limited area. The test shall prove the basic function of the component.
8.2.6.2 Test procedure
The documentation shall be checked to show that the interaction between the RF links does not negatively impact the transmission time and fault detection time during normal operation as set out in this document.
Subsequently two independent base stations each with 5 components shall be set up at the minimum distance between all the components permitted by the manufacturer and commissioned in accordance with the manufacturer’s specifications. If the maximum number of components per system is below 5, the maximum number of components shall be installed.
The manufacturer shall provide means to ensure the simultaneous triggering of the devices. The test for alarm signal integrity may be combined with this test.
8.2.6.3 Requirements
The systems shall operate for 48 h without fault messages and the following shall be met:
The fault or alarm messages shall be correctly addressed within the assigned system without producing a fault or an alarm signal on the non-assigned system.
8.2.7 Test of compatibility with other band users
8.2.7.1 Object
To demonstrate that the component complies with the requirements of 4.2.5.3.
8.2.7.2 Test procedure
8.2.7.2.1 General
The: manufacturer shall provide a suitable test equipment and sufficient information about the measures to ensure the availability of the transmission path in the presence of other band users in accordance with the National Regulations where the tested system is used.
CAUTION — The allowed use of bands, sub-bands, channels and frequencies depends on National Regulations.
The attenuation between the components under test shall fall within a mean range. If a number of components is to be tested, these shall be installed in the test equipment.
A RF link with two components (i.e. CIE and component) shall be set up. The signal level at the point where the messages are received shall fall within a mean range.
If a transmission uses one or more remote receivers, an interfering signal shall only be applied to one receiver at any one time. The test shall be repeated for each receiver.
8.2.7.2.2 Test procedure for multi-channel components
An un-modulated interfering signal sufficient to block the transmission shall be applied to the message recipient (e.g. CIE).
The test shall be carried out on all of the frequencies used by the component under test.
Each frequency shall be blocked for at least 1 s in turn. The time of frequency change shall not exceed 1 s. This procedure shall be continuously repeated for the duration of the function test.
After the start of the blocking procedure five separate non-contiguous alarm messages shall be triggered at the transmitting component.
8.2.7.2.3 Test procedure for single-channel components
An un-modulated interfering signal shall be generated to mimic the other users on the wanted channel and shall be sufficient to block the transmission shall be applied to the message recipient (e.g. CIE).
The “on” time and “off” time for the interfering signal shall be in accordance with Table 5.
WARNING — Single-channel systems using frequencies where the “on” time is longer than 10 s are likely to fail.
8.2.7.3 Requirements
The RF links shall operate appropriately and as intended and:
8.2.8 Test for the detection of a loss of communication on a link
The test shall be carried out with one component randomly chosen and shall be repeated twice.
8.2.8.1 Requirements
The CIE shall enter the fault warning condition after the loss of communication by the times given in 4.2.6.
8.2.9 Test of the antenna
8.2.9.1 Object of the test
To demonstrate that an antenna or its cable cannot easily be detached.
8.2.9.2 Test procedure
The requirement of 4.2.7 shall be verified by engineering assessment. The manufacturer shall provide the components for the assessment.
8.2.9.3 Requirements
The antenna or its cable shall only be detachable by opening the enclosure of the component or by using special tools provided by the manufacturer.
8.3 Components tests
8.3.1 General
All environmental tests shall be carried out as defined in the relevant parts of EN 54. For components powered by autonomous power source(s), these tests shall be made with fully charged autonomous power source(s), with the exception of the endurance tests (i.e. vibration with the power source in the original position but not connected, damp heat (steady state) and sulphur dioxide (SO2) corrosion tests).
The test “supply voltage variation” defined in the appropriate standards shall be done with the extreme power supply values. The minimum value to be considered is the value leading to the fault signal defined in 5.3.3.
In addition to the tests defined in the relevant part of EN 54 with which the component shall comply, the tests defined in 8.3.3 to 8.3.20 shall apply.
8.3.2 Test schedule for components tests
The test order is given in Table 6. The manufacturer may provide more than one CIE for the environmental tests.
Where applicable, the test order can be changed in the interest of test economy.
8.3.3 Verification of the service life of the autonomous power source(s)
8.3.3.1 Object of the verification
To demonstrate, by analysis and calculation, that the power source functions during the required time.
8.3.3.2 Verification procedure
The manufacturer shall provide the electric current consumption of the component powered in quiescent conditions.
8.3.3.3 Requirements
The service life calculation shall be provided by the manufacturer and shall be verified by the test authority. The requirements of 5.3.2 shall be fulfilled.
8.3.4 Test for the low power condition fault signal
8.3.4.1 Object of the test
To demonstrate, if the component is powered by an autonomous power source, that a low power fault signal is transmitted by the powered component in time before the component is not able to operate as intended due to the failure of the autonomous power source.
8.3.5.1 Object of the test
To demonstrate that, if the component is powered by an autonomous power source and if a mechanical polarity reversal is possible, that this polarity reversal does not damage the powered component.
8.3.5.2 Test procedure
8.3.5.2.1 General
If the manufacturer can demonstrate to the test laboratory that the polarity reversal cannot adversely affect the performance of the component, the tests of 8.3.5.2.2 and 8.3.5.2.3 shall not be applied.
8.3.5.2.2 Functional part
The measurement of the response or the functional test of the powered component shall be carried out as specified in the relevant part of EN 54 to which the component under test shall comply.
The polarity shall then be reversed, if this is mechanically possible. This polarity reversal shall be maintained for 2 h, unless a fault signal is transmitted by the component under test.
After the polarity reversal, the component shall be powered in its normal condition and its response shall be measured.
If the component under test is an intermediate element, each response measurement shall be replaced by a functional test performed in accordance with the manufacturer’s requirements.
8.3.5.2.3 Radio part
The transmission threshold value shall be determined in accordance with Annex A before and after the polarity reversal test. The threshold values before and Aafter shall be recorded for each measurement.
8.3.5.3 Requirements
8.3.5.3.1 Functional part
The response values (qualitative or quantitative) measured shall comply with the test requirements as defined in the relevant part of EN 54 to which the component under test shall comply.
If the component under test is an intermediate element, it shall comply with the manufacturer’s specifications when the function tests are performed.
8.3.5.3.2 Radio part
The difference |Abefore – Matter! shall be less than 6 dB.
8.3.6 Repeatability test
8.3.6.1 Object of the test
To demonstrate that the transmission behaviour is stable.
8.3.6.2 Test procedure
The transmission threshold shall be determined in accordance with Annex A six times in sequence. The threshold values A shall be recorded for each measurement.
The maximum attenuation shall be designated Amax and the minimum attenuation shall be designated Amin.
8.3.7 Variation of supply parameters
8.3.8.1 Object of the test
To demonstrate that within the specified range(s) of the supply parameters (e.g. voltage), the transmission behaviour is not unduly dependent on these parameters.
8.3.8.2 Test procedure
The transmission threshold of the specimen shall be determined in accordance with Annex A, using a bench- top power supply. The upper and lower limits of the supply parameter range(s) shall be specified by the manufacturer. The threshold values A shall be recorded for each measurement.
The maximum attenuation shall be designated Amax and the minimum attenuation shall be designated Amin.
8.3.8.3 Requirements
The difference |Amax – Amin| shall be less than 6 dB.
8.3.8 Dry heat (operational)
8.3.9.1 Object of the test
To demonstrate the ability of the specimen to function correctly at high ambient temperatures appropriate to the anticipated service environment.
8.3.9.2 Test procedure
The specimen shall be exposed to the conditions as given in Table 7 unless otherwise stated in the relevant parts of EN 54.
The test apparatus and the test procedure shall be as described in EN 60068-2-2, test Bb.
After a recovery period of at least 1 h under standard laboratory conditions the transmission threshold of the specimen shall be measured again in accordance with Annex A. The threshold value Aafter shall be recorded.
8.3.10.3 Requirements
No fault signal, attributable to the endurance conditioning, shall be given on reconnection of the specimen. The difference |Aafter – A| shall be less than 6 dB, where A was measured in reproducibility test.
8.3.11 Cold (operational)
8.3.11.1 Object of the test
To demonstrate the ability of the specimen to function correctly at low ambient temperatures appropriate to the anticipated service environment.
8.3.11.2 Test procedure
The specimen shall be exposed to the low ambient temperature given in the Table 9 unless otherwise stated in the relevant parts of EN 54.
The test apparatus and procedure shall be as described in EN 60068-2-1, test Ab, and as described below.
The specimen shall be monitored during the conditioning period to detect any alarm or fault signal.
During the last 0,5 h of the conditioning period the transmission threshold of the specimen shall be determined in accordance with Annex A. The threshold value Aduring shall be recorded.
After a recovery period of at least 1 h under standard laboratory conditions the transmission threshold of the specimen shall be measured again in accordance with Annex A. The threshold value Aafter shall be recorded.
8.3.11.3 Requirements
No alarm or fault signal shall be given during the conditioning.
The difference |Aduring – A| shall be less than 10 dB, where A was measured in reproducibility test. The difference |Aafter – A| shall be less than 6 dB, where A was measured in reproducibility test.
8.3.12 Damp heat, cyclic (operational)
8.3.12.1 Object of the test
To demonstrate the ability of the specimen to function correctly at a high relative humidity (with condensation) which can occur for short periods in the anticipated service environment.
8.3.12.2 Test procedure
The specimen shall be exposed to the ambient climate given in Table 10 unless otherwise stated in the relevant parts of EN 54.
The test apparatus and the test procedure shall be as described in EN 60068-2-30, test Db, using the Variant 1 test cycle and controlled recovery conditions.
The specimen shall be monitored during the conditioning period to detect any alarm or fault signal.
During the last 0,5 h of the conditioning period the transmission threshold of the specimen shall be determined in accordance with Annex A. The threshold value Aduring shall be recorded.
After a recovery period of at least 1 h under standard laboratory conditions the transmission threshold of the specimen shall be measured again in accordance with Annex A. The threshold value Aafter shall be recorded.
8.3.12.3 Requirements
No alarm or fault signal shall be given during the conditioning.
The difference |Aduring – A| shall be less than 10 dB, where A was measured in the reproducibility test. The difference |Aafter – A| shall be less than 6 dB, where A was measured in the reproducibility test.
8.3.13 Damp heat, steady state (operational)
8.3.13.1 Object of the test
To demonstrate the ability of the specimen to function correctly at a high relative humidity (without condensation) which can occur for short periods in the anticipated service environment.
8.3.13.2 Test procedure
The specimen shall be exposed to the ambient climate given in Table 11.
For the CIE the test procedure shall be as described in EN 60068-2-78 and for the smoke detector the test apparatus and procedure shall be as described in EN 60068-2-78, test Cab and as described below.
The specimen shall be monitored during the conditioning period to detect any alarm or fault signal.
During the last 0,5 h of the conditioning period the transmission threshold of the specimen shall be determined in accordance with Annex A. The threshold value Aduring shall be recorded.
After a recovery period of at least 1 h under standard laboratory conditions the transmission threshold of the specimen shall be measured again in accordance with Annex A. The threshold value Aafter shall be recorded.
8.3.13.3 Requirements
No alarm or fault signal shall be given during the conditioning.
The difference |Aduring – A| shall be less than 10 dB, where A was measured in reproducibility test. The difference |Aafter – A| shall be less than 6 dB, where A was measured in reproducibility test.
8.3.14 Damp heat, steady state (endurance)
8.3.14.1 Object of the test
To demonstrate the ability of the specimen to withstand long term effects of humidity in the service environment.
8.3.14.2 Test procedure
The specimen shall be disconnected from its power supply and exposed to the ambient climate given in Table 12.
The test apparatus and the test procedure shall be as described in EN 60068-2-78, test Cab.
After a recovery period of at least 1 h under standard laboratory conditions the transmission threshold of the specimen shall be measured again in accordance with Annex A. The threshold value Aafter shall be recorded.
8.3.14.3 Requirements
No alarm or fault signal, attributable to the endurance conditioning shall be given on reconnection of the specimen.
The difference |Aafter – A| shall be less than 6 dB, where A was measured in reproducibility test.
8.3.15 SO2-corrosion (endurance)
8.3.15.1 Object of the test
The object of the test is to demonstrate the ability of the specimen to withstand the corrosive effects of sulphur dioxide as an atmospheric pollutant.
8.3.15.2 Test procedure
The specimen shall be disconnected from its power supply and exposed to the ambient climate given in Table 13.
The test apparatus and procedure shall be as described in EN 60068-2-42, test Kc, except that the conditioning shall be as described below.
Immediately after the conditioning the specimen shall be subjected to a drying period of 16 h at (40 ± 2) °C and < 50 % RH followed by a recovery period of at least 1 h under standard laboratory conditions.
The transmission threshold of the specimen shall be measured again in accordance with Annex A. The threshold value Aafter shall be recorded.
8.3.15.3 Requirements
No alarm or fault signal, attributable to the endurance conditioning, shall be given on reconnection of the specimen.
The difference |Aafter – A| shall be less than 6 dB, where A was measured in reproducibility test. 8.3.16 Shock (operational)
8.3.16.1 Object of the test
To demonstrate the immunity of the specimen to mechanical shocks which are likely to occur in the anticipated service environment.
8.3.16.2 Test procedure
The specimen shall be exposed to the conditions given in Table 14.
The test apparatus and the test procedure shall be as described in EN 60068-2-27, test Ea, for a half sine wave pulse, but with the peak acceleration related to the specimen mass as indicated in Table 14.
No test is applied for specimen with a mass > 4,75 kg.
The specimen shall be monitored during the conditioning period and for a further 2 min to detect any alarm or fault signal.
After the conditioning the transmission threshold of the specimen shall be measured again in accordance with Annex A. The threshold value Aafter shall be recorded.
8.3.16.3 Requirements
No alarm or fault signal shall be given during the conditioning.
The difference |Aafter – A| shall be less than 6 dB, where A was measured in reproducibility test. 8.3.17 Impact (operational)
8.3.17.1 Object of the test
To demonstrate the immunity of the specimen to mechanical impacts upon its surface which it may sustain in the normal service environment and which it can reasonably be expected to withstand.
8.3.17.2 Test procedure
The specimen shall be exposed to the conditions given in Table 15.
The specimen shall be monitored during the conditioning period and for a further 2 min to detect any alarm or fault signal.
After the conditioning the transmission threshold of the specimen shall be measured again in accordance with Annex A. The threshold value Aafter shall be recorded.
8.3.17.3 Requirements
No alarm or fault signal shall be given during the conditioning.
The difference |Aafter – A| shall be less than 6 dB, where A was measured in reproducibility test.
8.3.18 Vibration, sinusoidal (operational) 8.3.18.1 Object of the test
To demonstrate the immunity of the specimen to vibration at levels considered appropriate to the normal service environment.
8.3.18.2 Test procedure
The specimen shall be exposed to the conditions given in Table 16.
The test apparatus and the test procedure shall be as described in EN 60068-2-6, test Fc.
The specimen shall be monitored during the conditioning period to detect any alarm or fault signal.
After the conditioning the transmission threshold of the specimen shall be measured again in accordance with Annex A. The threshold value Aafter shall be recorded.
8.3.18.3 Requirements
No alarm or fault signal shall be given during the conditioning.
The difference |Aafter – A| shall be less than 6 dB, where A was measured in reproducibility test. 8.3.19 Vibration, sinusoidal (endurance)
8.3.19.1 Object of the test
To demonstrate the ability of the specimen to withstand the long term effects of vibration at levels appropriate to the service environment.
8.3.19.2 Test procedure
The specimen shall be disconnected from its power supply and be exposed to the conditions given in Table 17. The test apparatus and the test procedure shall be as described in EN 60068-2-6, test Fc.
After the conditioning the transmission threshold of the specimen shall be measured in accordance with Annex A. The threshold value Aafter shall be recorded.
8.3.19.3 Requirements
No alarm or fault signal, attributable to the endurance conditioning shall be given on reconnection of the specimen.
The difference |Aafter – A| shall be less than 6 dB, where A was measured in reproducibility test. 8.3.20 Electromagnetic Compatibility (EMC), Immunity tests (operational)
8.3.20.1 Object of the test
To demonstrate the immunity to electromagnetic disturbances which can occur in the normal service environment.
8.3.20.2 Test procedure
The following EMC immunity tests shall be carried out as described in EN 50130-4:
a) electrostatic discharge;
b) radiated electromagnetic fields;
c) conducted disturbances induced by electromagnetic fields;
d) fast transient bursts;
e) slow high energy voltage surges;
f) mains supply voltage variations;
g) mains supply voltage dips and short interruptions.
The specimen shall be monitored during the conditioning period to detect any alarm or fault signal.
After the conditioning the transmission threshold of the specimen shall be measured again in accordance with Annex A. The threshold value Aafter shall be recorded.
8.3.20.3 Requirements
For these tests the criteria for compliance specified in EN 50130-4, in the appropriate part of EN 54 and the following shall apply:
The difference |Aafter – A| shall be less than 6 dB, where A was measured in reproducibility test.
Annex A
(normative)
Test configuration by using radio frequency shielded test equipment
A.1 Radio frequency shielded test equipment for the component or the radio part of the component transmitting the alarm signal
The component or the radio part of the component transmitting the alarm signal shall be mounted in a test
equipment as shown in Figure A.1 which complies with the following:
a) the test equipment shall be a radio frequency shielded metal casing which provides sufficient attenuation of the radio frequency free field from the transmitter in order to avoid any possible free field transmitted signal activation of the corresponding receiver;
b) the cavity resonances shall be reduced by covering the inside of the casing with a radio frequency absorbing material (e.g. by ferrite tiles) or by other means;
c) the mechanical positioning of the component or the radio part of the component transmitting the alarm signal shall be reproducible to the extent where the output level from the equipment does not change more than ± 1 dB after removal and remounting;
d) a honeycomb shall be mounted at each side of the RF-shielded box and filtered-through connections shall be available at the side of the box to enable functional testing to be carried out. Through the honeycombs it is possible for instance to activate an inside mounted smoke detector by applying a test smoke or to activate an inside mounted heat detector by applying heat from for instance a hair dryer. Also filtered- through connections shall be available at the side of the RF-shielded box to allow mains or low voltage AC/DC signals to be fed into the box for powering the component or the radio part of the component transmitting the alarm signal or to enable powering of appliances for activation of its different types;
e) the small holes in the honeycombs can be used for external manual activation of the component or the radio part of the component transmitting the alarm signal by means of some non-conducting activation rod, e.g. when using push-button types of manual call points;
f) the equipment shall not be affected by the different environmental test exposures with respect to the output level by more than ± 1 dB, i.e. avoid the use of dielectric materials which change the relative dielectric constant under different temperature and humidity conditions;
g) the antenna of the component or the radio part of the component transmitting the alarm signal shall be fixed in the same position during all the environmental tests in accordance with the specification given by the manufacturer.
NOTE The purpose of working with test equipment is to convert the free field transmission into a cable signal
transmission situation, where the test reproducibility is high and the immunity to the interfering surroundings negligible.
radio frequency shielded box for the FDAS part with a component transmitting the alarm signal antenna
radio frequency absorbing material RF attenuator (AT = 0 dB to 100 dB)
radio frequency shielded box for the FDAS part with a component receiving the alarm signal inputs/outputs, e.g. mains, DC or signalling
Figure A.1 — Radio frequency shielded test equipment and interconnections
A.2 Radio frequency shielded test equipment for the component or the radio part of the component receiving the alarm signal
The component or the radio part of the component receiving the alarm signal shall be mounted in a test
equipment as shown in Figure A.1 which complies with the following:
a) the test equipment shall be a radio frequency shielded metal casing which provides a very high attenuation of the radio frequency free field signal from the corresponding transmitter in order to avoid any possible free field transmitted signal activation of the receiver;
b) the cavity resonance shall be reduced by covering the inside of the casing with a radio frequency absorbing material (e.g. by ferrite tiles) or by other means;
Key
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c) the mechanical positioning of the component or the radio part of the component receiving the alarm signal shall be reproducible to the extent where the attenuation level for 80 % of successful transmission trials,
as measured by the RF-attenuator connected between the two test equipment, does not change more than ± 1 dB after its removal and remounting;
d) the equipment shall not be affected by the different environmental test exposures with respect to the measured attenuation level for 80 % of successful transmission trials, as measured by the RF-attenuator connected between the two test equipment, with more than ± 1 dB, i.e. avoid the use of dielectric materials which change the relative dielectric constant under different temperature and humidity conditions;
e) the antenna of the component or the radio part of the component receiving the alarm signal shall be fixed in the same position during all the environmental tests in accordance with the specification given by the manufacturer.
A.3 Cable connection between test equipment with component transmitting the alarm signal and test equipment with component receiving the alarm signal
The equipment as described in A.1 and A.2 are interconnected by shielded cables with the radio frequency attenuator connected in series with the signalling lead as shown in Figure A.1.
The complete test set-up shall provide sufficient attenuation to avoid direct coupling between the components under test.
A.4 Determination of the transmission threshold A
The transmission threshold A is the highest value of attenuation where a minimum of 80 % of the alarm transmission trials are successful. This value is found by affecting the component or the radio part of the component to change from its normal condition to alarm condition by e.g. applying smoke, heat, light or by mechanical movements of rods.
In most cases the highest A value, where 80 % of the alarm transmission trials are successful, can be found as the A value, where 4 out of 5 transmission trials are successful.
Table C.1 (concluded)
Annex ZA
(informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive (89/106/EEC)
ZA.1 Scope and relevant clauses
This European Standard has been prepared under the mandate M/109 “Fire alarm/detection, fixed firefighting, fire and smoke control and explosion suppression products” given to CEN by the European Commission and the European Free Trade Association.
The clauses of this European Standard, shown in this annex, meet the requirements of the Mandate given under the EU Construction Products Directive (89/106/EEC).
Compliance with these clauses confers a presumption of fitness of the construction products covered by this annex for the intended use indicated herein; reference shall be made to the information given with the CE marking (see ZA.3).
WARNING — Other requirements and other EU Directives may be applicable to the products falling within the scope of this standard.
.
Where a quality management system is certified in accordance with EN ISO 9001:2000, by a certification body which is now a notified body, then the assessment reports of this quality management system should be taken into account with respect to these clauses.
ZA.2.2.3.3 Product specific requirements
The FPC system shall:
— address this European Standard and
— ensure that the products placed on the market conform to the stated performance characteristics.
The FPC system shall include a product specific FPC or quality plan, which identifies procedures to demonstrate conformity of the product at appropriate stages, i.e.:
— the controls and tests to be carried out prior to and/or during manufacture according to a frequency laid down and/or
— the verifications and tests to be carried out on finished products according to a frequency laid down.
If the manufacturer uses only finished products, the operations under b) shall lead to an equivalent level of conformity of the product as if normal FPC had been carried out during the production.
If the manufacturer carries out parts of the production himself, the operations under b) will be reduced and partly replaced by operations under a). Generally, the more parts of the production that are carried out by the manufacturer, the more operations under b) will be replaced by operations under a). In any case the operation shall lead to an equivalent level of conformity of the product as if FPC had been carried out during the production.
The operations under a) centre as much on the intermediate states of the product as on manufacturing machines and their adjustment, and measuring equipment etc. These controls and tests and their frequency shall be chosen based on product type and composition, the manufacturing process and its complexity, the sensitivity of product features to variations in manufacturing parameters etc.
The manufacturer shall establish and maintain records that provide evidence that the production has been sampled and tested. These records shall show clearly whether the production has satisfied the defined acceptance criteria and shall be available for at least three years. These records shall be available for inspection.
Where the product fails to satisfy the acceptance measures, the provisions for non-conforming products shall apply, the necessary corrective action shall immediately be taken and the products or batches not conforming shall be isolated and properly identified. Once the fault has been corrected, the test or verification in question shall be repeated.
The results of controls/tests and verification shall be properly recorded. The product description, date of manufacture, test method adopted, test results and acceptance criteria shall be entered in the records under the signature of the person responsible for the control/test and verification. With regard to any control result not meeting the requirements of this European Standard, the corrective measures taken to rectify the situation (e.g. a further test carried out, modification of manufacturing process, and throwing away or putting right of product) shall be indicated in the records.
Individual products or batches of products and the related manufacturing documentation shall be completely identifiable and retraceable.
ZA.2.2.3.4 Initial inspection of factory and FPC
Initial inspection of factory and FPC shall be carried out when the production process has been finalised and preferably in operation. The factory and FPC-documentation shall be assessed to verify that the requirements of ZA.2.2.3.1 and ZA.2.2.3.2 are fulfilled.
In the assessment it shall be verified:
a) that all resources necessary for the achievement of each product characteristics required by this European Standard are or will be available and
b) that the FPC procedures in accordance with the FPC-documentation are or will be implemented and followed in practice and
c) that each product complies or will comply with the initial type testing samples, for which compliance with this European Standard has been verified.
All locations where final assembly or at least final testing of the relevant product is performed shall be assessed to verify that the above conditions a) to c) are in place.
If the FPC system covers more than one product, production line or production process, and it is verified that the general requirements are fulfilled when assessing one product, production line or production process, then the assessment of the general requirements does not need to be repeated when assessing the FPC for another product, production line or production process.
Provided that the production process is similar, assessments previously performed in accordance with the provisions of this standard may be taken into account providing that they were made to the same system of attestation of conformity on the same product or products of similar design, construction and functionality, such that the results may be considered applicable to the product in question.
All assessments and their results shall be documented in a report.
ZA.2.2.3.5 Continuous surveillance of FPC
Surveillance of the FPC shall be undertaken at least once a year.
The surveillance of the FPC shall include a review of the quality plan(s) and production process(es) for each product to determine if any changes have been made since the last assessment or surveillance and the significance of any changes shall be assessed.
Checks shall be made to ensure that the quality plans are still correctly implemented and that the production equipment is still correctly maintained and calibrated.
The records of tests and measurement made during the production process and to finished products shall be reviewed to ensure that the values obtained still correspond with those values for the samples submitted to initial type testing and that the correct actions have been taken for non-compliant devices.
The surveillance of the FPC may be carried out as part of a surveillance or reassessment of a quality management system (e.g. in accordance with EN ISO 9001:2000).
ZA.2.2.4 Procedure for modifications
If modifications are made to the product, production process or FPC system that could affect any of the product characteristics required by this European Standard, then all characteristics covered by the clauses shown in Table ZA.1, which may be changed by the modification, shall be subject to initial type testing or engineering evaluation, except as described in ZA.2.2.2.3 and ZA.2.2.2.4. Where relevant, a re-assessment of the factory and of the FPC system shall be performed for those aspects, which may be affected by the modification.
All assessments and its results shall be documented in a report.
ZA.3 CE marking and labelling and accompanying documentation
The manufacturer, or his authorized representative established in the EEA, is responsible for the affixing of the CE marking. The CE-marking symbol (in accordance with Directive 93/68/EEC) shall be placed on the product and shall be accompanied by the number of the EC certificate of conformity and the notified product certification body number. If the notified body number is included as part of the number of the EC certificate of conformity, then the number of the EC certificate of conformity is sufficient.
The CE marking symbol shall in addition be shown on the accompanying commercial documentation supplemented by:
— the identification number of the notified product certification body;
— the name or identifying mark and registered address of the manufacturer;
— the last two digits of the year in which the marking was affixed;
— the number of the EC certificate of conformity;
— the reference to this European Standard (i.e. EN 54-25), its date and any amendments;
— description of the product, as:
— generic name: component using RF links,
— intended use: for fire detection and fire alarm systems for buildings,
— type/model designation of the product;
— other information required by 12.2.1 or a reference to a document, which shall be uniquely identifiable and available from the manufacturer, containing this information.
Figure ZA.1 gives an example of the CE marking information to be given in the accompanying commercial documentation.