YHT Cover qxd © ISO 2014 Fire detection and alarm systems — Part 28 Fire protection control equipment Systèmes de détection et d’alarme d’incendie — Partie 28 Équipement de commande des systèmes de lu[.]
Definitions
For the purposes of this document, the terms and definitions given in ISO 7240-1 and the following apply.
3.1.1 functional condition condition of the FPCE characterized by its indication at the FPCE
Note 1 to entry: The functional conditions recognized in this part of ISO 7240 are the following:
— fault warning condition, specified in 4.4;
Abbreviated terms
AFPE automatic fire protection equipment
FPCE fire protection control equipment
General
4.1.1 The FPCE shall be capable of unambiguously controlling and indicating the following functional conditions, as described in 4.2 to 4.6:
4.1.2 The FPCE shall be capable of functioning simultaneously in any combination of the following functional conditions:
4.1.3 If functions other than those specified in this part of ISO 7240 are provided, they shall not jeopardize compliance with any requirements of this part of ISO 7240.
4.1.4 If an optional function is included in the FPCE, then all the corresponding requirements shall be met.
4.1.5 Functions required in this part of ISO 7240 can be performed within fire detection control and indicating equipment complying with ISO 7240-2.
Quiescent condition
The FPCE must be in a quiescent state when powered, with no other functional conditions indicated During this quiescent condition, it can display various system information without causing confusion However, it must not provide indications that could be mistaken for active operational statuses, ensuring clear and unambiguous communication of system state.
Fire protection condition
4.3.1 Reception and processing of fire protection condition signals
4.3.1.1 The FPCE shall receive fire alarm condition signals from fire detection control and indicating equipment (ISO 7240-1:2014, Figure 1, item B), and within 3 s, send signals as configured to initiate AFPE.
4.3.1.2 Fire alarm condition signals shall be latched by the FPCE until reset.
4.3.1.3 FPCE output signals shall be activated as part of the fire protection condition.
FPCE output signals must be configurable at access level 3 to ensure flexibility and security These configurations should be primarily based on fire alarm condition signals received from the fire detection control and indicating equipment Additionally, the system must allow for adaptations necessary during the design and installation of the fire detection and alarm system within or around the building.
The mandatory indications and outputs must not be falsified or duplicated by multiple fire signals received from the same or different fire detection control and indicating equipment This situation can occur due to the simultaneous operation of two or more fire detection control units or additional detection systems, but such signals should accurately reflect the true fire conditions to ensure reliable fire detection and response.
4.3.2 Indication of the fire protection condition
The fire protection condition is indicated when a visible, separate light-emitting indicator displays the general fire protection status, and there is a visible indication of the FPCE output activation as detailed in section 4.3.3—though this can be omitted for FPCE systems capable of sending signals to only one AFPE Additionally, an audible alarm is provided as specified in section 4.10 to ensure comprehensive fire detection and warning.
4.3.2.2 The time taken for processing signals within the FPCE shall not delay the indication of the fire protection condition at the FPCE by more than 3 s.
4.3.2.3 The display of the fire protection condition shall take priority over the display of other conditions.
4.3.3.1 Activation by fire protection control equipment
4.3.3.1.1 Activation of the FPCE output shall be indicated by means of a separate light-emitting indicator, or a field of an alphanumeric display, or both, for each FPCE output.
4.3.3.1.2 Where an alphanumeric display is used and separate light-emitting indicators for each FPCE output are not provided, a separate light-emitting indicator (the general output indicator) is also required.
4.3.3.1.3 The output indicators shall be separate and distinct from the fire protection condition indicator.
When using an alphanumeric display with limited capacity, it must show the total number of activated FPCE outputs until the system is reset Activated outputs not immediately visible should be accessible at access levels 1 or 2 with a single manual action to cycle through the list Additionally, the display should recirculate to the first output once the last has been shown, ensuring continuous visibility Importantly, these indications must remain visible and should not be suppressed by other functional conditions.
4.3.3.1.5 The FPCE output indicator shall flash when the FPCE output is activated and go steady when the FPCE receives acknowledgement from the AFPE.
The acknowledgment signal criteria are dependent on the AFPE (Automatic Fire Protection Equipment), ensuring proper communication within fire safety systems For instance, an acknowledgment signal for a smoke exhaust fan is only sent after the exhaust fan has successfully started, confirming its operational status This approach enhances system reliability by verifying equipment functionality before issuing acknowledgment signals Proper synchronization between control equipment and fire safety devices is essential for effective fire protection and system response.
Some activated equipment, such as valves for a gas cylinder, may not be capable of sending an acknowledgement signal As a result, the output indicator will continue flashing, signaling to the operator that the status of the AFPE (Automatic Fire and Process Equipment) remains uncertain.
4.3.3.2 Activation by means other than by the fire protection control equipment
Activation of the AFPE through methods other than the FPCE, such as a heat-activated suppression system, must be clearly indicated by separate visual alerts, including lights, alphanumeric displays, or both, for each FPCE output These indicators can utilize the same symbols or signals described in section 4.3.3.1, ensuring clear and compliant identification of different activation sources for safety and operational clarity.
4.3.3.2.2 When the AFPE is activated by means other than by the FPCE, the FPCE output visual indicator shall go steady and the audible indication, as specified in 4.10, shall activate.
NOTE If the AFPE is activated by means other than the FPCE, the activation is not considered as a fire protection condition; therefore, the reset function of 4.3.4.4 does not apply.
4.3.3.2.3 The audible indication shall not be silenced automatically.
4.3.3.2.4 If previously silenced, the audible indication shall re-sound for each new FPCE output activation.
4.3.4.1.1 Manual controls shall be available at access level 2 to activate and deactivate the outputs of the FPCE.
The processing time for manual control signals within the FPCE must not exceed 3 seconds to ensure prompt output activation When multiple outputs are triggered by a single manual control, each additional output can be activated with a delay of up to 3 seconds per output, maintaining efficient system response and safety.
When manual control is activated, it temporarily suspends the programmed operation of the associated FPCE output Once manual control is deactivated, the programmed operation of the FPCE output resumes seamlessly from the point of suspension.
NOTE The resumption of programmed operation might need to include a re-examination of any active FPCE input signals.
4.3.4.2 Indication of the activation of a manual control
Activation of manual control must be clearly indicated by a dedicated light-emitting indicator, alphanumeric display, or both for each FPCE output This indicator provides visual confirmation of manual control activation The indicator shall automatically turn off when manual control is deactivated, ensuring clear communication of the system’s status Proper signaling helps enhance operational safety and user awareness.
4.3.4.2.2 The activation of the manual control shall be indicated within 2 s of the completion of the manual operation.
Indicators for fault warnings, disabled states, or test conditions must be accessible via manual operation at access levels 1 or 2 if these indications are suppressed during manual control, ensuring reliable visibility of system status.
4.3.4.4.1 A manual control shall be provided to reset the FPCE from the fire protection condition at access level 2.
Fire protection conditions must be reset manually, as outlined in section 4.3.4.4.1, and can also be reset automatically once the fire alarm condition is cleared This reset process occurs through the fire detection control and indicating equipment, ensuring the system is restored to normal after a fire event Proper reset procedures are essential for maintaining effective fire safety and compliance with safety protocols.
4.3.4.4.3 Following a reset, the indication of the correct functional conditions corresponding to any received signals shall either remain or be re-established within 20 s.
Fault warning condition
4.4.1 Reception and processing of fault warning signals
4.4.1.1 The FPCE shall enter the fault warning condition when signals are received that, after necessary processing, are interpreted as fault.
4.4.1.2 The FPCE shall be capable of simultaneously recognizing all of the faults specified in 4.4.3.1 and 4.4.3.4, unless this is prevented by
— the presence of a fire protection condition from the same input, and/or
— the disablement of the corresponding input or output, and/or
— the testing of a corresponding input or output.
4.4.1.3 Faults specified in 4.4.3.1 and 4.4.3.4 shall be indicated without prior manual intervention, unless the FPCE is in the fire protection condition, in which case, the fault indications can be suppressed.
4.4.2 Indication of the fault warning condition
The fault warning condition is triggered when three key indicators are present: a visible warning via a dedicated light-emitting indicator, visible signals for each specific fault as detailed in section 4.4.3.1, and an audible alert in accordance with section 4.10.
4.4.2.2 Faults shall be indicated within 100 s of the occurrence of the fault or as specified in 4.15.6.
The fire detection system must display faults through a dedicated indicator light, alphanumeric display, or both, which can be suppressed during fire protection scenarios Specifically, it should clearly indicate when the transmission of signals from fire detection control and indicating equipment is affected, ensuring accurate detection and response during emergencies Proper fault indication is crucial for maintaining the system's reliability and safety standards.
— a short circuit in the input transmission path,
— an interruption in the input transmission path; b) an indication when the transmission of signals to AFPE is affected by
— a short circuit in the output transmission path,
— an interruption in the output transmission path,
— the removal of an output transmission path,
The fire protection control panel must indicate disconnections of the AFPE from transmission paths and provide alerts for power supply faults, such as short circuits or interruptions, especially when the power supply is housed separately from the FPCE It should also signal single earth faults affecting critical functions not marked as supervised faults, as well as fuse ruptures or protective device operations impacting essential fire safety functions Additionally, the system must detect and notify any short circuits or interruptions between multiple transmission paths across different mechanical cabinets that could impair mandatory functions, and should include indications for software system faults in accordance with relevant standards.
When indication is provided through separate light-emitting indicators, the same indicator can be reused for both the disable condition and test condition However, it is essential that the indications remain distinguishable to ensure clear and effective communication of the device’s status Proper differentiation between these indicators enhances safety and compliance with relevant standards.
If the indication is on an alphanumeric display that cannot simultaneously show all faults, the system must indicate suppressed faults and allow users to access these fault details through manual operation at access levels 1 or 2 Suppressed fault indications should be clearly signaled and can be displayed manually to ensure comprehensive fault management.
Any short circuit or interruption in a transmission path between parts of the FPCE located in multiple mechanical cabinets, as long as it does not impact a mandatory function, must be indicated by the general fault warning indicator This ensures reliable fault detection and enhances safety monitoring Proper signaling of such faults is essential for maintaining the integrity and safety of the system.
4.4.4 Fault warning indications during the fire protection condition
The audible warning for fault conditions may be identical to the fire protection alert However, if they differ, the fire protection indication must take priority to ensure prompt response and safety.
In fire protection systems, if faults are indicated by separate indicator lights and these indications are suppressed during fire conditions, it must still be possible to manually reveal these faults at access level 1 This ensures reliable fault detection and maintenance, even when automatic indicators are suppressed to prevent false alarms during emergencies Proper manual access to fault information is essential for effective fire safety management and prompt troubleshooting.
If previously silenced, the audible indication shall re-sound for each newly recognized fault.
4.4.6 Reset from the fault warning condition
Indications of faults shall be capable of being reset automatically when the faults are no longer recognized.
Disabled condition — Optional function
4.5.1.1 The FPCE can have a provision to independently disable and re-enable each input and each output by means of manual operations at access level 2.
4.5.1.2 Disablement shall inhibit all corresponding mandatory indications and/or outputs, but shall not prevent other mandatory indications and/or outputs.
4.5.1.3 Disablement and re-enablement shall not be affected by a reset from the fire protection condition, manual control, the fault warning condition, or the test condition.
4.5.2 Indication of the disabled condition
The disabled condition must be clearly visible through two indicators: a dedicated light-emitting disablement indicator and individual indicators for each specific disablement, as specified in section 4.5.1.1.
4.5.2.2 Disablement shall be indicated within 2 s of the completion of the manual operation.
When indicating a specific disablement using separate light-emitting indicators, the same indicator can be used to show both the fault and test statuses, provided that each indication remains clearly distinguishable This approach helps streamline visual alerts while maintaining clarity in fault and test identification Ensuring the indicators are distinguishable is essential for effective maintenance and troubleshooting.
When disablement indications are displayed on an alphanumeric display that cannot show all disablements simultaneously, it is mandatory to indicate when any disablement information has been suppressed Additionally, users must be able to manually reveal any suppressed indications through accessible controls at access levels 1 or 2, ensuring clear communication of all disablement statuses for safety and usability.
Test condition — Optional function
The FPCE can include a provision for testing fire alarm signals from fire detection control and indicating equipment, allowing the temporary inhibition of certain fire protection functions during testing Test states must be manually initiated and canceled only at access levels 2 or 3, ensuring secure control Each function should be testable individually to verify proper operation Importantly, inputs in the test state must not interfere with or disable the mandatory indications and outputs related to other inputs outside the test mode.
4.6.1.2 The test condition shall not be affected by a reset from the fire protection condition, the disabled condition, or the fault warning condition.
4.6.2 Indication of the test condition
4.6.2.1 The test condition shall be indicated visibly, by means of the following: a) a visible indication (the general test indicator); b) an indication for each function in the test, as specified in 4.6.1.1.
4.6.2.2 Tests shall be indicated within 2 s of the completion of the manual operation.
4.6.2.3 The indications of each function in the test can be suppressed during the fire protection condition but the general test indicator shall not be suppressed.
When a specific test indication, as outlined in 4.6.1.1, utilizes separate light-emitting indicators, the same indicator can be used to signal both the fault or disable status; however, each indication must be distinguishable to ensure clear identification.
When an alphanumeric display cannot show all test indications simultaneously, it must indicate any suppressed test information Additionally, suppressed indications should be accessible through manual operation at access levels 1 or 2, ensuring users can view all relevant test data when needed.
Functional condition recorder — Optional function
The FPCE must include a provision to record functional conditions, ensuring an electronic log captures the date and time of up to 999 recent functional events These timestamps must be accurate within 30 seconds of the actual fire detection and alarm system time, maintaining precise records for system performance and incident analysis.
Accessibility of indications and controls
The FPCE offers four distinct access levels, ranging from Level 1 (most accessible) to Level 4 (least accessible), ensuring secure and tiered access control Access restrictions are designed so that users cannot access higher-numbered levels but can access lower ones, enhancing security and operational hierarchy Manual controls and other functions are systematically grouped according to their designated access levels, in line with ISO 7240 standards, to facilitate organized and secure management.
4.8.2 All mandatory indications shall be visible at access level 1 without prior manual intervention (e.g the need to open a door).
4.8.3 Manual controls at access level 1 shall be accessible without special procedures.
4.8.4 Indications and manual controls that are mandatory at access level 1 shall also be accessible at access level 2.
4.8.5 The entry to access level 2 shall be restricted by a special procedure.
4.8.6 The entry to access level 3 shall be restricted by a special procedure, differing from that for access level 2.
4.8.7 The entry to access level 4 shall be restricted by special means that are not part of the FPCE.
Visual indications
All mandatory indications shall be clearly identifiable, except where otherwise specified in this part of ISO 7240.
4.9.2 Indications by means of light emitting indicators
Mandatory indications from light-emitting indicators must remain visible in ambient light conditions up to 500 lux These indicators should be clearly visible at any viewing angle up to 22.5° from a line perpendicular to their mounting surface, ensuring easy recognition in various lighting environments.
— at 3 m distance for the general indications of functional condition,
— at 3 m distance for the indication of the supply of power, and
— at 0,8 m distance for other indications.
4.9.2.2 For flashing indications, both the “on” period and the “off” period shall be greater than or equal to 0,25 s, and the frequencies of flash shall not be less than
— 1 Hz for fire protection condition indications, and
— 0,2 Hz for fault warning indications.
4.9.3.1 If an alphanumeric display consists of elements or segments, the failure of one of these shall not affect the interpretation of the displayed information.
When the Fire Panel Control Equipment (FPCE) is integrated with fire detection and indicating systems, it must have a dedicated window for its operation Alphanumeric displays conveying mandatory information should feature at least one clearly distinguishable window with two easily identifiable fields, ensuring clear and effective communication of critical fire safety data This setup enhances usability and compliance, aligning with international fire safety regulations.
4.9.3.3 If not included in the displayed information, the purpose of each field shall be clearly labelled.
Mandatory indications on an alphanumeric display must be legible for at least 1 hour or the entire duration of the standby power source after a fire or fault is detected These indications should be visible from a distance of 0.8 meters in ambient light levels ranging from 5 lux to 500 lux, ensuring clear visibility at any angle relative to the display's normal plane.
— 22,5° when viewed from each side, and
— 15° when viewed from above and below.
The indications must remain legible at a brightness level of 100 lx to 500 lx at specified distances and angles for up to one hour or until the standby power source is depleted, whichever occurs first Additionally, it should be possible to restore legibility at lower light levels of 5 lx to 100 lx through manual operation at access level 1.
4.9.4.1 The colours of the general and specific indications from light-emitting indicators shall be as follows: a) red for indications of fire protection conditions; b) yellow for indications of
— test state; c) green for the indication that the FPCE is supplied with power.
Using different colours for indications on alphanumeric displays is generally unnecessary However, if colours are employed to differentiate indications, they must conform to the color specifications outlined in section 4.9.4.1 to ensure clarity and consistency.
All mandatory visual indicators shall be testable by a manual operation at access level 1 or level 2.
Audible indications
4.10.1 Audible indicators shall be part of the FPCE The same device can be used for both fire protection condition and fault warning condition indications.
4.10.2 The audible indication shall be capable of being silenced by means of a separate manual control at access level 1 or 2.
4.10.3 The minimum sound level at a distance of 1 m with any access door on the FPCE closed, shall be either
— 85 dB(A) for fire protection condition indications and 70 dB(A) for fault warning indications.
NOTE The provision for two sets of audible indications allows for some FPCE being installed in areas that are normally occupied (such as a security room).
4.10.4 The sound level shall be measured in anechoic conditions.
4.10.5 Audible indicators shall be testable by a manual operation at access level 1 or access level 2 The control can be the same as that required in 4.9.5.
Additional indications
Where indications are used in addition to mandatory indications, these shall not result in contradiction or confusion.
Power supply
The power supply for the FPCE must meet the standards outlined in ISO 7240-4 to ensure reliable operation If the FPCE is housed within the fire detection control and indicating equipment cabinet, both systems can share a common power supply, streamlining installation and maintenance Adhering to these requirements guarantees compliance with international fire safety regulations and enhances the overall reliability of fire detection systems.
A visible indication must be provided by a separate light-emitting indicator to show when the Fire and Power Control Equipment (FPCE) is powered When the FPCE is integrated with fire detection and control equipment, a single power supply indicator can be used to signal both systems, ensuring clear and efficient visual status updates This setup enhances safety by providing immediate visual confirmation of power status for fire-related systems.
4.12.3 Transitions between the main and the standby power sources shall not change any indications and/or the state of any outputs, except those relating to the power supplies.
4.12.4 If the FPCE has provision for disconnecting or adjusting the main or the standby power source, this shall be possible only at access level 3.
Mechanical
The FPCE cabinet must have a robust construction aligned with the installation methods outlined in the official documentation At access level 1, it is required to meet at least IP30 protection classification according to IEC 60529 standards, ensuring adequate safety and durability.
4.13.2 The FPCE can be housed in more than one cabinet In this case, the related indicators for the controls shall be grouped together in the same cabinet.
All mandatory manual controls and light-emitting indicators must be clearly labeled to indicate their purpose, ensuring that the labels are legible from a distance of 0.8 meters The labeling should be easily readable in ambient light conditions ranging from 100 lux to 500 lux, enhancing user safety and operational clarity.
4.13.4 The terminations for transmission paths and the fuses shall be clearly labelled.
Integrity of transmission paths
A fault in any transmission path between the Fire Panel Control Equipment (FPCE) and other components of the fire detection system, as specified in ISO 7240-1, shall not compromise the correct operation of the FPCE or any other essential transmission paths This ensures system reliability and continuous fire detection performance despite individual transmission path faults.
If the manufacturer’s documentation indicates that an FPCE installed in multiple cabinets, such as signal concentrator equipment, can operate in separate locations, then appropriate measures must be specified and implemented These measures should ensure that a short circuit or transmission interruption between cabinets does not impact more than one function for longer than 20 seconds after the fault occurs, maintaining system reliability and operational continuity.
When the FPCE is powered by a separate cabinet remote from the power supply (as specified in ISO 7240-1:2014, Figure 1, item L), an interface must be provided to ensure at least two transmission paths to the power supply This redundancy ensures that a short circuit or interruption in one path does not prevent the FPCE from receiving power, maintaining continuous operation and system reliability.
Software
The FPCE can contain elements that are controlled by software in order to fulfil requirements of this part of ISO 7240.
The manufacturer must prepare comprehensive documentation outlining the software design, which should be submitted alongside the FPCE to the testing authority This documentation must provide sufficient detail to allow an inspection of the design for compliance with ISO 7240, ensuring thorough evaluation and verification.
The manufacturer must prepare and maintain comprehensive design documentation, ensuring it is readily available for inspection While submission to the testing authority is not required, the documentation must be accessible in a manner that safeguards the manufacturer’s confidentiality rights.
In order to ensure the reliability of the FPCE, measures shall be included in the program to prevent the occurrence of a deadlock in the system.
The program execution must be closely monitored to ensure all routines associated with its main functions run within a 100-second time frame A dedicated monitoring device will signal a system fault if any of these routines fail to execute within this time limit This process aligns with guidelines outlined in Annex B and is essential for maintaining system reliability and safety.
4.15.4.2 The functioning of the monitoring device and the signalling of a fault warning shall not be prevented by a failure in the execution of the program of the monitored system.
4.15.5 The storage of programs and data
All executable code and essential data required to meet ISO 7240 standards must be stored in memory capable of continuous, reliable operation without maintenance for at least 10 years (see also Annex B).
The program must be stored in non-volatile memory that is writable exclusively at access level 4, ensuring secure and controlled updates Each memory device should be uniquely identifiable, allowing its contents to be precisely cross-referenced with the corresponding software documentation This setup enhances security, traceability, and maintains the integrity of the software environment.
Site-specific data modification is restricted to access level 3, ensuring controlled updates Stored in volatile memory, such data must be protected from power loss by a backup energy source separable only at access level 4, capable of maintaining contents for at least two weeks When stored in read-write memory, a mechanism must prevent writing during normal operation at access levels 1 or 2, safeguarding data during program failures Each set of changes must be assigned a version reference, which must be updated accordingly, and it should be possible to identify this version at access level 3, ensuring proper data management and security.
4.15.6 The monitoring of memory contents
The program and site-specific data memories are automatically checked every hour to ensure data integrity If corruption is detected during these intervals, the system’s checking device will immediately signal a fault This regular automatic monitoring helps maintain data security and system reliability.
Data
4.16.1 General requirements and manufacturer’s declarations
4.16.1.1 The FPCE shall comply with the design requirements of 4.16, when relevant to the technology used.
To facilitate the design inspection process, the manufacturer must provide a written declaration affirming that their design adheres to a quality management system, such as ISO 9001, ensuring all FPCE elements are designed according to established standards Additionally, the manufacturer must confirm that the FPCE components are appropriately selected for their intended purpose and are expected to operate within specified parameters when environmental conditions outside the cabinet meet Class 3K5 of IEC 60721-3-3.
The manufacturer is required to prepare comprehensive installation and user documentation, which must be submitted to the testing authority alongside the FPCE This documentation should include a general description of the equipment and a detailed list of its components, ensuring clear understanding and proper usage Including these details helps facilitate the testing process and ensures compliance with regulatory standards.
— optional functions with the requirements of this part of ISO 7240,
— functions relating to other parts of ISO 7240, and
This section clarifies that ancillary functions are not required by this part of ISO 7240 It emphasizes the importance of defining technical specifications for the inputs and outputs of the FPCE to ensure compatibility These specifications should allow for assessing mechanical, electrical, and software integration with other system components, as outlined in ISO 7240-1 and ISO 7240-13, including relevant details where applicable Ensuring these standards facilitates seamless system interoperability and compliance.
— the power requirements for recommended operation,
— the maximum number of inputs and outputs,
— the maximum and minimum electrical ratings for each input and output,
— information on the communication parameters employed on each transmission path, and
— recommended cable parameters for each transmission path,
— fuse ratings; c) installation information, including
— the suitability for use in various environments,
— if the FPCE is contained in more than one cabinet, how the requirements of 4.13.2 and 4.14.2 can be met,
— if the FPCE is designed for use with a power supply contained in a separate cabinet, how the requirements 4.14.3 can be met,
— instructions for connecting the inputs and outputs; d) configuring and commissioning instructions; e) operating instructions; f) maintenance information.
The manufacturer must prepare comprehensive design documentation, including drawings, parts lists, block diagrams, circuit diagrams, and functional descriptions This documentation is to be submitted to the testing authority alongside the FPCE, ensuring that compliance with ISO 7240 can be verified and allowing for a thorough assessment of both the mechanical and electrical design.
General
5.1.1 Standard atmospheric conditions for testing
Testing should be conducted only after the test specimen has stabilized in accordance with IEC 60068-1 standards The standard atmospheric conditions for testing include a temperature range of 15 °C to 35 °C, relative humidity between 25% and 75%, and air pressure from 86 kPa to 106 kPa, unless the test procedure specifies otherwise.
5.1.1.2 The temperature and humidity shall be substantially constant for each environmental test where the standard atmospheric conditions are applied.
The specimen configuration must include at least one of each type of AFPE and transmission path to ensure comprehensive testing If incorporating every AFPE type is impractical, the testing authority can simulate the AFPE and generate signals that are returned to the FPCE, maintaining test validity.
5.1.2.2 The details of the AFPE shall be given in the test report (see Clause 6).
Mount the specimen in its typical orientation using the manufacturer-recommended mounting method, unless the test procedure specifies otherwise Ensure the equipment is accessible at level 1, except when higher access levels are necessary for specific functional tests.
5.1.4.1 If the test procedure requires the specimen to be in operating condition, it shall be connected to a power supply complying with the requirements in ISO 7240-4.
5.1.4.2 Unless otherwise required, the power supply shall be in the nominal operating condition.
All circuits and transmission paths must be connected to cables and equipment or dummy loads, with at least one of each type being maximally loaded within the manufacturer's specifications During testing, equipment other than the FPCE can be maintained under standard atmospheric conditions to ensure accurate results.
5.1.5.1 At least one FPCE shall be provided for testing compliance with this part of ISO 7240.
5.1.5.2 The specimen or specimens submitted shall be representative of the manufacturer’s normal production and shall include the claimed options.
Functional test
The objective of the test is to demonstrate the operation of the equipment before, during, and/or after the environmental conditioning.
Draw up a test schedule to ensure that during the functional test, each type of input function and each type of output function is exercised.
5.2.2.1.1 Initiate and reset the fire protection condition.
5.2.2.1.2 Initiate and reset the manual controls.
5.2.2.1.3 Check that the correct output to the AFPE is given and that the correct indication at the FPCE is given.
5.2.2.2.1 Initiate and reset the fault warning condition.
5.2.2.2.2 Check that the correct output to the AFPE is given and that the correct indication at the FPCE is given.
5.2.2.3.1 Initiate and reset the disabled condition.
5.2.2.3.2 Check that the correct output to the AFPE is given and the correct indication at the FPCE is given.
5.2.2.4.1 Initiate and reset the test condition.
5.2.2.4.2 Check that the correct output to the AFPE is given and that the correct indication at the FPCE is given.
5.2.2.5.1 Initiate and reset the functional conditions on the FPCE.
5.2.2.5.2 Check that each functional condition and status is recorded in the log.
5.2.2.5.3 Disconnect the power from the FPCE for a period of not less than 1 h.
5.2.2.5.4 Check that the contents of the log have not been lost or corrupted.
NOTE This test can be performed in conjunction with the other tests in 5.2.2.
Environmental tests
One, two, or three specimens can be supplied for environmental testing The required tests are shown in Table 1.
Test Operational or endurance Subclause reference
Damp heat, steady-state Operational 5.5
Electromagnetic compatibility (EMC) immunity tests Operational 5.8
Damp heat, steady-state Endurance 5.10
For environmental testing, a single specimen should undergo all operational tests in any sequence, followed by endurance tests on the same specimen in any order Prior to and after each environmental test, perform functional tests to ensure reliable performance throughout the testing process.
NOTE The functional test after one environmental test can be taken as the functional test before the next environmental test.
For environmental testing, it is recommended to test two specimens by first conducting all operational tests on the first specimen in any order, followed by one endurance test The second specimen should then undergo the remaining endurance test Additionally, perform functional tests before and after each environmental test to ensure accurate assessment of the specimens’ performance.
NOTE For the first specimen, the functional test after one environmental test can be taken as the functional test before the next environmental test.
When three specimens are supplied for environmental testing, one specimen must undergo all operational tests in any order, with functional tests conducted before and after each environmental test The second specimen is subjected to one endurance test, while the third specimen undergoes the other endurance test, ensuring comprehensive evaluation of durability and performance This testing procedure ensures thorough assessment of each specimen's operational integrity and endurance capabilities in accordance with standard testing protocols.
NOTE For the first specimen, the functional test after one environmental test can be taken as the functional test before the next environmental test.
During tests conducted from sections 5.4 to 5.9, the specimen must maintain its designated status under each functional condition specified in the relevant subclauses Changes in the specimen's status are only permissible if mandated by the test procedure or resulting from a functional test, ensuring consistent and reliable testing conditions Adhering to these guidelines guarantees the integrity of the testing process and accurate assessment of the specimen's performance.
5.3.5.2 However, in the tests of 5.8, 5.10, and 5.11, visible and audible indications of purely transitory nature occurring during the application of the conditioning are allowed.
5.3.5.3 When subjected to the functional test, each specimen shall respond correctly (see 5.2).
Cold (operational)
The objective of the test is to demonstrate the ability of the equipment to function correctly at low ambient temperatures, appropriate to the anticipated service environment.
Follow the test procedures outlined in IEC 60068-2-1, which involve gradual temperature changes to ensure accurate results For heat-dissipating specimens, use Test Ad as specified in IEC 60068-2-1, while for non-heat-dissipating specimens, apply Test Ab Proper adherence to these procedures guarantees reliable assessment of material performance under varying thermal conditions.
Before conditioning, subject the specimen to the functional test.
5.4.2.3 State of the specimen during conditioning
5.4.2.3.1 Mount the specimen, as specified in 5.1.3, and connect it to suitable power-supply, monitoring, and loading equipment (see 5.1.4).
5.4.2.3.2 The specimen shall be in the quiescent condition.
Apply the following severity of conditioning:
— temperature: (0 ± 3) °C, or other minimum rated temperature;
Monitor the specimen during the conditioning period to detect any change in status During the last hour of the conditioning period, subject the specimen to the functional test.
After the recovery period, subject the specimen to the functional test and inspect it visually for mechanical damage both externally and internally.
Damp heat, steady-state (operational)
The test aims to validate the equipment's performance under high relative humidity conditions without condensation, simulating short-term environmental exposures encountered in real-world service environments.
Use the test procedure specified in IEC 60068-2-78.
Before conditioning, subject the specimen to the functional test.
5.5.2.3 State of the specimen during conditioning
5.5.2.3.1 Mount the specimen, as specified in 5.1.3, and connect it to suitable power-supply, monitoring, and loading equipment (see 5.1.4).
5.5.2.3.2 The specimen shall be in the quiescent condition.
5.5.2.4.1 Apply the following severity of conditioning:
5.5.2.4.2 Precondition the specimen at the conditioning temperature (40 ± 2) °C until temperature stability has been reached to prevent the formation of water droplets on the specimen.
Monitor the specimen during the conditioning period to detect any change in status During the last hour of the conditioning period, subject the specimen to the functional test.
After the recovery period, subject the specimen to the functional test and inspect it visually for mechanical damage both externally and internally.
Impact (operational)
The objective of the test is to demonstrate the immunity of the equipment to mechanical impacts upon the surface which it can sustain in the normal service environment and which it can reasonably be expected to withstand.
Apply the test apparatus and procedure specified in IEC 60068-2-75.
Before conditioning, subject the specimen to the functional test.
5.6.2.3 State of the specimen during conditioning
5.6.2.3.1 Mount the specimen, as specified in 5.1.3, and connect it to suitable power-supply, monitoring, and loading equipment (see 5.1.4).
5.6.2.3.2 The specimen shall be in the quiescent condition.
5.6.2.4.1 Apply impacts to all surfaces of the specimen that are accessible at access level 1.
5.6.2.4.2 For all such surfaces, three blows shall be applied to any point(s) considered likely to cause damage to or impair the operation of the specimen.
5.6.2.4.3 Care should be taken to ensure that the results from a series of three blows do not influence subsequent series of blows.
5.6.2.4.4 In case of doubt, the defect shall be disregarded and a further three blows shall be applied to the same position on a new specimen.
5.6.2.4.5 Apply the following severity of conditioning:
— number of impacts per point: 3.
Monitor the specimen throughout the conditioning periods to observe any changes in its functional condition This helps ensure that the outcomes of the initial three blows do not impact subsequent series of blows, maintaining the integrity and consistency of the testing process.
After the conditioning, subject the specimen to the functional test and inspect it visually for mechanical damage both externally and internally.
Vibration, sinusoidal (operational)
The objective of the test is to demonstrate the immunity of the equipment to vibrations at levels appropriate to the service environment.
5.7.2.1.1 Use the test procedure specified in IEC 60068-2-6.
The vibration operational test can be combined with the vibration endurance test, allowing the specimen to undergo both testing conditions sequentially Specifically, the specimen is subjected to operational test conditions first, followed by endurance test conditions on each axis This integrated testing approach ensures comprehensive assessment of the specimen's performance under realistic operational and stress scenarios, optimizing testing efficiency and accuracy.
Before conditioning, subject the specimen to the functional test.
5.7.2.3 State of the specimen during conditioning
5.7.2.3.1 Mount the specimen, as specified in 5.1.3, and in accordance with IEC 60068-2-47, and connect it to suitable power-supply, monitoring, and loading equipment (see 5.1.4).
5.7.2.3.2 Test the specimen in each of the following functional conditions: a) quiescent condition; b) fire protection condition;
5.7.2.4.1 Subject the specimen to vibration in each of the three mutually perpendicular axes in turn, one of which is perpendicular to the plane of mounting of the specimen.
5.7.2.4.2 Apply the following severity of conditioning:
— frequency range: 10 Hz to 150 Hz;
— number of sweep cycles per axis: 1 for each functional condition.
Monitor the specimen during the conditioning periods to detect any changes in functional conditions.
After the conditioning, subject the specimen to the functional test and inspect it visually for mechanical damage both externally and internally.
Electromagnetic compatibility (EMC), immunity tests (operational)
To ensure electromagnetic compatibility, perform EMC immunity tests according to EN 50130-4, including mains supply voltage variations and dips, especially when power supply equipment is housed in the FPCE as per ISO 7240-4 Additionally, conduct tests for electrostatic discharge, radiated electromagnetic fields, conducted disturbances from electromagnetic sources, fast transient bursts, and slow high-energy voltage surges to validate system resilience against electromagnetic interferences.
For compliance with EN 50130-4 during tests outlined in section 5.8.1, a functional test as described in section 5.2 must be conducted during initial and final measurements, with the equipment tested in the quiescent state as specified in section 5.1.3 Unscreened cables should be used for connections unless manufacturer’s data recommend screened cables Electrostatic discharge tests should target accessible parts at access level 2, while fast transient burst testing involves applying transients directly to AC mains lines and using capacitive clamps on other inputs and lines If the equipment features multiple identical input or output types, testing of one representative of each type suffices for sections 5.8.1 e), f), g), and, if applicable, sections a) and b).
Supply voltage variation (operational)
The objective of the test is to demonstrate the ability to function correctly over the anticipated range of supply voltage conditions.
5.9.2.1.1 No reference can be made to an International Standard as of the publication date of this part of ISO 7240.
5.9.2.1.2 Subject the specimen to each of the specified power-supply conditions until temperature stability is reached and the functional test has been conducted.
Before conditioning, subject the specimen to the functional test.
5.9.2.3 State of the specimen during conditioning
5.9.2.3.1 Mount the specimen, as specified in 5.1.3, and connect it to suitable power-supply, monitoring, and loading equipment (see 5.1.4).
5.9.2.3.2 The specimen shall be in the quiescent condition.
Apply the following conditions: a) supply of maximum input voltage as specified by the manufacturer; b) supply of minimum input voltage as specified by the manufacturer.
Ensuring compatibility between the FPCE and specific power supply equipment requires that the FPCE's input voltage range encompasses the output voltages specified for the power supply used in ISO 7240-4 testing This alignment guarantees reliable performance and compliance with industry standards, making voltage compatibility a crucial factor for system integration.
Monitor the specimen at the supply-voltage conditions until temperature stability is reached and subject the specimen to the functional test at each voltage condition.
After conditioning, subject the specimen to the functional test.
Damp heat, steady-state (endurance)
The primary goal of this test is to evaluate the equipment's ability to endure long-term exposure to humidity in its service environment It assesses critical aspects such as changes in electrical properties caused by moisture absorption, chemical reactions involving humidity, and susceptibility to galvanic corrosion, ensuring reliable performance over time.
Use the test procedure specified in IEC 60068-2-78.
Before conditioning, subject the specimen to the functional test.
5.10.2.3 State of the specimen during conditioning
Mount the specimen, as required in 5.1.3, and connect it to suitable power-supply, monitoring, and loading equipment (see 5.1.4) The specimen shall not be supplied with power during the conditioning.
5.10.2.4.1 Apply the following severity of conditioning:
5.10.2.4.2 Pre-condition the specimen at the condition temperature (40 °C ± 2 °C) until temperature stability has been reached, to prevent the formation of water droplets on the specimen.
After the recovery period, subject the specimen to the functional test and inspect it visually for mechanical damage both externally and internally.
Vibration, sinusoidal (endurance)
The objective of the test is to demonstrate the ability of the equipment to withstand the long term effects of vibration at levels appropriate to the environment.
5.11.2.1.1 Use the test procedure specified in IEC 60068-2-6.
The vibration endurance test can be combined with the vibration operational test to evaluate the specimen's durability under real-world conditions During testing, the specimen is first subjected to operational test conditioning, followed by endurance test conditioning, applied sequentially along each axis This combined approach ensures comprehensive assessment of the specimen's performance and reliability under simulated operational vibrations.
Before conditioning, subject the specimen to the functional test.
5.11.2.3 State of the specimen during conditioning
Mount the specimen according to section 5.1.3 and in compliance with IEC 60068-2-47 standards Connect it to appropriate power supply, monitoring, and loading equipment as outlined in section 5.1.4 Ensure that the specimen is not powered during the conditioning process to maintain testing integrity.
Subject the specimen to vibration in each of the three mutually perpendicular axes in turn, one of which shall be perpendicular to the plane of mounting of the specimen.
Apply the following severity of conditioning:
— frequency range: 10 Hz to 150 Hz;
— number of sweep cycles: 20 per axis.
After conditioning, subject the specimen to the functional test and inspect it visually for mechanical damage both externally and internally.
The test report must include essential details such as identification of the test specimen, reference to ISO 7240-28:2014, and test results like response times and specimen orientation It should specify the conditioning period and atmosphere, along with the temperature and relative humidity maintained during testing Additionally, the report must detail the supply and monitoring equipment used, response criteria, and any deviations from ISO 7240 or other referenced standards, including optional operations This comprehensive information ensures compliance with international safety standards and accuracy in fire detection system testing.
The FPCE must be clearly marked with essential information, including the manufacturer's or supplier's name or trademark and the specific type number or designation This labeling should be easily legible at access level 1 to ensure proper identification and compliance.
7.2 It shall be possible to identify a code or number that identifies the production period of the FPCE at access level 2.
This section of ISO 7240 specifies access levels for indications and controls related to mandatory fire safety functions, offering alternative options such as access levels 1 or 2 depending on operational circumstances While the specific purpose of these different access levels is not detailed in this part of ISO 7240, they are generally intended to regulate who can access certain controls Typically, access level 1 is designated for members of the public or safety personnel responsible for initial fire alarm response and fault investigation, ensuring timely and appropriate actions in emergency situations.
Controls and indicators should not be accessible to the general public, as they are intended for trained personnel responsible for investigating and responding to fire alarms or fault warnings Access levels are specifically designed into the fire detection and alarm system to ensure safety For example, Access Level 2 is designated for individuals with specific safety responsibilities who are trained and authorized to operate the Fire Property Control Equipment (FPCE).
— test condition; c) access level 3: by persons who are trained and authorized to
— re-configure the site-specific data held within the FPCE or controlled by it (e.g labelling, zoning, alarm organization), and
Ensure the FPCE is maintained according to the manufacturer’s published instructions and data to guarantee optimal performance and safety Access level 4 is restricted to trained and authorized personnel designated by the manufacturer, who are permitted to repair the FPCE or modify its firmware, which can change its fundamental mode of operation Proper adherence to these guidelines is essential for compliance and to prevent unintended device functioning.
For comprehensive accessibility requirements, refer to section 4.8, which outlines the minimum standards Access levels 1 and 2 feature a strict hierarchical structure, ensuring clear progression and control Specialized procedures, such as specific entry protocols, are implemented for access to levels 2 and 3 to maintain security and compliance.
A.3 Examples of special means for entry to access level 4 are the use of
Access to Level 4 can be permitted with simple tools like a screwdriver after reaching access levels 2 or 3, provided the manufacturer clearly indicates which parts are not user-serviceable in the documentation Additionally, controlling entry to Level 4 through user management helps ensure safety It is also acceptable to use external tools at Level 3 for specific functions such as programming site-specific data, ensuring secure and efficient operation.
In certain situations, it may be desirable for the FPCE to have additional access levels beyond access level 2 or 3, such as 2A and 2B, allowing different authorized users to access specific controls or functions This configuration is permitted under ISO 7240, with the exact setup depending on the installation type, the FPCE's usage, and the complexity of its functions.
Design requirements for software-controlled fire protection control equipment
FPCE can incorporate software-controlled elements, such as alphanumeric display modules or embedded software, required to meet ISO 7240 standards, even if supplied by third parties These commodity items may lack detailed hardware and software documentation, but the use of appropriate technology is permitted, with relaxed documentation requirements at the discretion of the testing authority Manufacturers are responsible for ensuring that third-party components are fully documented, reliable, and suitable for the application, with proven reliability typically assumed for widely available components with over one year of field experience Clear and comprehensive interface specifications and documentation must be provided to the testing authority to ensure compliance.
Program monitoring, as outlined in B.2 4.15.4, is essential for ensuring the FPCE software performs all mandatory functions, including declared options It involves overseeing the execution of the entire program, even when running on multiple processors or using components supplied to manufacturers Manufacturers and testing authorities must agree on the appropriate level of monitoring required For alphanumeric display modules, routine verification that written data can be read back is considered sufficient for effective monitoring.
ISO 7240 section B.3 4.15.5.1 mandates that all executable code and necessary data must be stored in memory capable of continuous, reliable operation for at least 10 years When selecting memory, special consideration should be given to systems with moving mechanical parts to ensure their reliability Additionally, storage media like tapes, magnetic discs, or optical discs should be carefully evaluated, as these can degrade over time and potentially lead to system failures.