SIST EN 50131-6:2018

SLOVENSKI STANDARD
01-januar-2018
1DGRPHãþD
SIST EN 50131-6:2008
SIST EN 50131-6:2008/A1:2014
Alarmni sistemi - Sistemi za javljanje vloma in ropa - 6 del: Napajalniki
Alarm systems - Intrusion and hold-up systems - Part 6: Power supplies
Alarmanlagen - Einbruch- und Überfallmeldeanlagen - Teil 6: Energieversorgungen
Systèmes d'alarme - Systèmes d'alarme contre l’intrusion et les hold-up - Partie 6:
Alimentation
Ta slovenski standard je istoveten z: EN 50131-6:2017
ICS:
13.310 Varstvo pred kriminalom Protection against crime
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50131-6
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2017
ICS 13.310 Supersedes EN 50131-6:2008
English Version
Alarm systems - Intrusion and hold-up systems - Part 6: Power
supplies
Systèmes d'alarme - Systèmes d'alarme contre l'intrusion et Alarmanlagen - Einbruch- und Überfallmeldeanlagen - Teil
les hold-up - Partie 6: Alimentation 6: Energieversorgungen
This European Standard was approved by CENELEC on 2017-09-18. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50131-6:2017 E
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references. 6
3 Terms, definitions and abbreviations . 7
3.1 Terms and definitions . 7
3.2 Abbreviations . 9
4 Functional requirements . 9
4.1 PS configurations . 9
4.2 General requirements .10
4.3 Monitoring of PS .13
4.4 APS capability .17
4.5 Recharging for PS Type A .17
4.6 Over-voltage protection .18
4.7 Short circuit protection.18
4.8 Overload protection .18
4.9 Deep discharge protection .18
4.10 Ripple .18
4.11 Tamper security .18
4.12 Environmental .21
4.13 Safety .22
4.14 EMC susceptibility .22
4.15 Electrical .22
5 Marking .23
6 Documentation .23
7 Tests .24
7.1 General .24
7.2 General test conditions .25
7.3 Reduced functional test .26
7.4 Monitoring: Loss of EPS .26
7.5 Monitoring: Storage Device Low Residual Energy .27
7.6 Monitoring: Storage Device Failure .30
7.7 Monitoring: Low Output Voltage .30
7.8 Monitoring: Power Unit Failure – Loss of PU Power Output .31
7.9 Monitoring: Power Unit Failure – Loss of SD Recharge .32
7.10 Test on demand .32
7.11 APS Capability .33
7.12 Recharging for PS Type A .34
7.13 Over voltage protection .35
7.14 Short Circuit Protection .36
7.15 Overload Protection .37
7.16 Deep Discharge Protection .38
7.17 Tamper security - Protection .39
7.18 Tamper Detection – Access to inside of the housing .39
7.19 Tamper detection – Removal from mounting .40
7.20 Tamper detection – Penetration of the housing .41
7.21 Environmental and EMC .42
7.22 PS Rating .42
7.23 Output voltage stability - Gradual load variation .45
7.24 Output Voltage Stability – Switched Load Variation .46
7.25 Marking and Documentation .47
Annex A (informative) Determination of Storage Device failure .48
Annex B (normative) Measurement of ripple voltage .49
B.1 General .49
B.2 Principle .49
B.3 Test conditions .49
B.4 Measurement .49
B.5 Pass/Fail Criteria .49
Annex C (normative) Measurement of transients .50
C.1 General .50
C.2 Principle .50
C.3 Test conditions .50
C.4 Measurement .50
C.5 Pass/Fail Criteria .50
Annex D (informative) Test on Demand signal or message timing and usage protocol .51
Annex E (informative) Cross-reference between requirements and corresponding tests .52

European foreword
This document (EN 50131-6:2017) has been prepared by CLC/TC 79 “Alarm systems”.
The following dates are fixed:
• latest date by which this document has to be (dop) 2018-09-18
implemented at national level by publication of an
identical national standard or by endorsement
• latest date by which the national standards (dow) 2020-09-18
conflicting with this document have to
be withdrawn
This document supersedes EN 50131-6:2008.
The revision is to make the document less technology specific and more inclusive of the different
types of power supplies found in I&HAS and the different types of technologies that are, and can be,
employed within a power supply. It will make the document easier to use and more clearly applicable
to the range of PSU configurations to be found in I&HAS.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Introduction
This European Standard deals with power supplies (PS) of intrusion and hold-up alarm systems
(I&HAS) installed in buildings. It includes devices that are installed inside or outside of the supervised
premises and mounted in indoor or outdoor environments.
The PS may be fully contained in its own housing or it may be integrated with other components within
an I&HAS, e.g. the control and indicating equipment (CIE).
An I&HAS may use one or more PS.
1 Scope
This European Standard specifies the requirements, performance criteria and testing procedures for
PS to be used as part of Intrusion and Hold up Alarm Systems. The PS will either be an integral part of
an I&HAS component or stand-alone. The control functions of the PS may be incorporated as part of
the PS device, or may be provided by another I&HAS component, e.g. a CIE.
This European Standard is not applicable when the PS requirements for I&HAS components are
included within the relevant product standard.
The requirements correspond to each of the four security grades given in the European Standard
EN 50131-1, Alarm Systems – Intrusion and Hold-Up Systems – Part 1: System requirements.
Requirements are also given for four environmental classes covering applications in indoor and
outdoor locations.
This standard covers:
a) mandatory functions which will be provided on all PS; and
b) optional functions which may be provided.
This European Standard does not deal with requirements for compliance with EC regulatory
Directives, such as the EMC Directive, Low Voltage Directive, etc. except that it specifies the
equipment operating conditions and reduced functional test for EMC susceptibility testing as required
by EN 50130-4.
Other functions associated with I&HAS not specified in this standard may be provided. Such functions
will not affect the requirements of any mandatory or optional functions.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 50130-4, Alarm systems - Part 4: Electromagnetic compatibility - Product family standard:
Immunity requirements for components of fire, intruder, hold up, CCTV, access control and social
alarm systems
EN 50130-5, Alarm systems - Part 5: Environmental test methods
EN 50131-1, Alarm systems - Intrusion and hold-up systems - Part 1: System requirements
EN 60068-2-14:2009, Environmental testing - Part 2-14: Tests - Test N: Change of temperature (IEC
60068-2-14:2009)
EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529)
EN 62262, Degrees of protection provided by enclosures for electrical equipment against external
mechanical impacts (IK code) (IEC 62262)
3 Terms, definitions and abbreviations
For the purposes of this document, the following terms, definitions and abbreviations apply.
3.1 Terms and definitions
3.1.1
alternative power source
power source capable of powering the I&HAS for a predetermined time when the prime power source
is unavailable
3.1.2
APS operating period
period during which the APS is supporting an I&HAS when the EPS has been lost
3.1.3
charged state
charge state of a rechargeable SD having at least the rated minimum energy level at the start of the
APS operating period
3.1.4
deep discharge protection
protection which avoids damage to the SD when the level of discharge is beyond the level specified by
the SD manufacturer
3.1.5
external power source
power source for types A and B PS, which is external to the I&HAS and which may be non-continuous
3.1.6
independent power output
individual power output to the I&HAS having its own protection against short circuit and overload and
not dedicated to an I&HAS component with which the PS is integrated
3.1.7
integrated PS
PS that is integrated with another I&HAS component, usually within the same housing, and having at
least one power output that is dedicated solely to that other component, separate from any
independent power output, for example a PS integrated with a CIE
3.1.8
low output voltage
voltage below the minimum power output voltage
3.1.9
maximum power output voltage
maximum rated voltage of the PS at each independent power output as specified by the PS
manufacturer under normal operating conditions
3.1.10
minimum power output voltage
minimum rated voltage of the PS at each independent power output as specified by the PS
manufacturer under normal operating conditions
3.1.11
normal operating condition
conditions applying when the PS is mounted according to the PS manufacturer’s instructions, within
the range of the designated environmental class, the applied load being within the rated output, the
SD having sufficient charge to maintain the minimum power output voltage and for PS type A and PS
type B, any applied and available EPS being within specified range
Note 1 to entry: Normal operating condition of a PS includes the APS operating period.
3.1.12
open by normal means
opening of the equipment housing by the procedure defined by the manufacturer
3.1.13
over-voltage protection
protection of the PS output against excessive high output voltage due to failure of one or more PS
components under normal operating conditions
3.1.14
power output
output of an integrated PS dedicated to the integrated component
3.1.15
power supply
device that stores, provides and also modifies or isolates (electrical) power for an I&HAS or part
thereof, comprising of a PU and SD as a minimum
3.1.16
power unit
device that provides and also modifies or isolates (electrical) power for an I&HAS or part thereof and
for the SD if required
3.1.17
power unit failure
condition of the PU where it cannot supply the rated output and/or for a PS type A cannot recharge the
SD
3.1.18
prime power source
power used to support an I&HAS under normal operating conditions
Note 1 to entry: The prime power source does not support the I&HAS during the APS operating period.
3.1.19
principal prime power source
energy source capable of supporting the I&HAS for extended periods
3.1.20
rated output
total continuous output current that can be supplied by the PS to the I&HAS through its independent
power outputs and to any integrated component under normal operating conditions
3.1.21
ripple
variation of the voltage at the independent power outputs resulting from components of the EPS or
artefacts introduced by the operation of the PU, e.g. switching circuit
3.1.22
standby period
period during which the alternative power source is capable of supporting an I&HAS
3.1.23
storage device
device which stores energy, e.g. a battery
3.1.24
storage device – failure
condition of the SD where it cannot supply the rated output of the PS at the minimum power output
voltage in the event of loss of EPS
3.1.25
storage device low residual energy
condition specified by the PS manufacturer which indicates that the SD is nearly discharged
3.1.26
supplementary prime power source
energy source independent of the PPPS capable of supporting an I&HAS for extended periods,,
without affecting the standby period of the alternative power source
3.2 Abbreviations
APS Alternative Power Source
CIE Control and Indicating Equipment
EPS External Power Source
I&HAS Intruder and Hold-up Alarm System
PPPS Principal Prime Power Source
PPS Prime Power Source
PS Power Supply
PU Power Unit
SD Storage Device
SPPS Supplementary Prime Power Source
ac alternating current
dc direct current
4 Functional requirements
4.1 PS configurations
The PS may be configured as:
(i) standalone, with independent power outputs connected to the I&HAS, Figure 1 a);
(ii) integrated with at least one other I&HAS component, with independent power outputs connected
to the I&HAS, and having at least one power output dedicated to the integrated component,
Figure 1 b);
(iii) integrated with at least one other I&HAS component, but with no independent power outputs
connected to other components of the I&HAS, Figure 1 c).
For PS in configuration (iii), where there are no product specific requirements for the functionality and
performance of the PS defined within the relevant EN 50131 series product standard for the integrated
component, the requirements of this European Standard shall apply.
PS Independent
Power Outputs
to I&HAS
Fig. 1 a) Standalone PS
PS Component Independent
Power Outputs
to I&HAS
Power Output to Component
Fig. 1 b) Integrated PS with Independent Power Outputs to I&HAS
PS Component
Power Output to Component
Fig. 1 c) Integrated PS with NO Independent Power Outputs to I&HAS

Figure 1 — Power Supply Configurations
4.2 General requirements
The PS provides power for the components of an I&HAS derived from the prime power source.
The prime power source will normally be available to power the I&HAS for extended periods.
There are three types of PS which are independent of security grade and independent of the PS
configuration. These PS types are defined in EN 50131-1 and illustrated in Figure 2.
One or more PS may be used to meet the I&HAS standby requirements as specified in EN 50131-1.
For PS types A and B (see Figure 2):
— the EPS is the prime power source;
— the EPS is derived from either the principal prime power source or the supplementary prime
power source;
— the PPPS is the normal continuously available external source of power for the I&HAS, for
example the public mains supply;
— the SPPS provides an external back-up source of power in the event of loss of PPPS, for example
a standby generator;
— there is no requirement for the I&HAS to differentiate between the PPPS and SPPS as the source
of the EPS;
— an alternative power source provides a back-up source of power to the I&HAS components in the
event of loss of the EPS;
— the APS is derived from a SD which is housed within the PS.
NOTE 1 The PPPS may be a local source of power, for example a generator, with the SPPS
provided by the public mains electricity supply.
NOTE 2 The EPS may have a voltage and frequency other than that of the public mains electricity
supply, for example as provided from a low voltage battery bank.
For PS type C, the prime power source is derived from a SD which is housed within the PS.
A PS type A shall recharge the SD automatically from the EPS when the EPS is present, and maintain
it in a charged state.
NOTE There is no requirement for the charging to be continuous to maintain the SD in its charged state.
Where the SD in a PS type B is rechargeable, recharging of the SD shall be from an energy source
other than the EPS. This energy source may be non-continuous, e.g. derived from solar radiation.
A fault on one independent power output of a PS will have no impact upon the functionality of any
other independent power output.
Each independent power output may have provision for more than one connection.
PPPS
EPS
PU
Independent
power outputs
SPPS
to I&HAS
APS
components
SD
PS
PS Type A
I&HAS
PPPS
EPS
PU Independent
power outputs
SPPS
to I&HAS
APS
components
Replacement SD or
SD
non-continuous
PS
recharge source for
SD not charged from
EPS
PS Type B
I&HAS
PU Independent
power outputs
to I&HAS
components
PS Type C SD
PS
I&HAS
Figure 2 — Power Supply Types
Depending upon the security grade and PS type, the PS shall have the functionality as defined in
Table 1.
If a function is provided that is optional for a particular grade and a claim of compliance is made, it
shall meet the applicable requirements for the grade for which compliance is claimed (if any are
given). If there are no specifications for the optional function at the grade in question, the requirements
for any higher grade (as identified by the PS manufacturer) shall apply.
Table 1 — Power Supply Functions
PS Type
Function Grade
A B C
Detection of Loss of EPS 1 – 4 M M N/A
Detection of Storage Device Low 1 – 4 M M M
Residual Energy
1 – 2 Op Op N/A
Detection of Storage Device –
Failure
3 – 4 M Op N/A
1 – 2 Op Op N/A
Detection of Low Output Voltage
3 – 4 M M N/A
1 – 2 Op Op N/A
Detection of Power Unit failure
3 – 4 M M N/A
1 – 2 Op Op Op
Over-voltage Protection
3 – 4 M M Op
Short circuit protection 1 – 4 M M M
Overload protection 1 – 4 M M M
1 – 2 Op Op N/A
a
SD Deep Discharge protection
3 – 4 M M N/A
1 – 3 Op Op N/A
Test On Demand
4 M Op N/A
Tamper Security 1 – 4 M M M
M = Mandatory
Op = Optional
N/A = Not Applicable
a
Where the SD is rechargeable and Deep Discharge will damage the SD
4.3 Monitoring of PS
4.3.1 General
The PS shall generate fault signals or messages for communication to the CIE according to Table 2.
Monitoring signals or messages shall be fail safe such that total loss of function of the PS will be
recognized as a fault condition by the I&HAS.
For integrated PS with configurations (ii) and (iii), the fault signals or messages may be communicated
to the CIE via the integrated component.
Table 2 — Power Supply Signalling
Storage
Device
Power Output
EPS Fault APS Fault Tamper
Low
Fault
Condition Residual
signal or signal or signal or
signal or
Energy
message message message
message
signal or
message
Loss of EPS M NP N/A NP NP
Storage Device Low
Residual Energy:
NP M N/A NP NP
PS types A and B
Storage Device Low
Residual Energy:
N/A NP M NP NP
PS type C
a
Storage Device – Failure NP M N/A NP NP
a
Low Output Voltage Op Op Op M NP
a
Power Unit – Failure NP NP NP M NP
Tamper Detection NP NP NP NP M
Test on Demand NP Op NP NP NP
M = Mandatory
NP = Not permitted
N/A = Not Applicable
Op = Optional
a
Dependent upon security grade
4.3.2 Loss of EPS
The EPS shall be monitored to detect when it can no longer provide the main supply of energy to
power the I&HAS.
A loss of EPS condition shall exist when the EPS has been continuously disconnected for a minimum
of 10 s and a maximum of 60 s.
An EPS Fault signal or message shall be generated within 10 s of the detection of Loss of EPS
condition.
A reconnection of EPS condition shall exist when the EPS has been continuously re-connected for a
minimum of 1 s and a maximum of 10 s.
An EPS Fault signal or message shall be removed within 10 s of the detection of reconnection of EPS
condition.
4.3.3 Storage Device Low Residual Energy
4.3.3.1 General
The SD shall be monitored to detect when its remaining stored energy is low.
The PS manufacturer shall declare in the PS documentation the monitored condition of the SD that will
generate this fault signal or message, for example, low SD voltage.
For PS type A, when the EPS is present and the SD is undergoing normal charging it is not necessary
to monitor for SD Low Residual Energy.
For PS type B having a rechargeable SD and its SD is undergoing normal charging, it is not necessary
to monitor for SD Low Residual Energy.
NOTE For PS type A when the EPS is present the SD will normally be automatically recharged.
4.3.3.2 PS Type A and B
For PS type A and B:
An APS Fault signal or message shall be generated according to Table 2 and within the maximum
time periods defined in Table 3, when the remaining energy in the SD falls below a low value as
specified by the PS manufacturer.
An APS Fault signal or message shall be removed according to Table 2 and within the maximum time
periods defined in Table 4, when the energy in the SD rises above the low value specified by the PS
manufacturer.
With the EPS present, an APS Fault signal or message shall be generated according to Table 2 and
within the maximum time periods defined in Table 3, when the SD is disconnected.
With the EPS present, an APS Fault signal or message shall be removed according to Table 2 and
within the maximum time periods defined in Table 4, when the SD is reconnected.
For PS type A, when the EPS is re-applied following a loss of EPS and the SD is undergoing normal
charging, any APS Fault signal or message generated due to a SD Low Residual Energy condition
shall be removed within the maximum time periods defined in Table 4.
4.3.3.3 PS Type C
For PS type C:
A SD Low Residual Energy fault signal or message shall be generated according to Table 2 and within
the maximum time periods defined in Table 3, before the SD reaches a condition such that it is unable
to provide its rated output for longer than a minimum of 30 days.
A SD Low Residual Energy fault signal or message shall be removed according to Table 2 and within
the maximum time periods defined in Table 4, when the energy in the SD rises above the low value
specified by the PS manufacturer, e.g. following replacement of a battery.
For wire-free devices with intermittent operation, e.g. wire-free PIR, it is permissible for communication
of the SD Low Residual Energy fault signal or message to be delayed until the next available
transmission.
Table 3 — Maximum time to detect and signal Storage Device Low Residual Energy fault signal
or message
Maximum Time to Detect and Signal Grade 1 Grade 2 Grade 3 Grade 4
Storage Device Low Residual Energy
PS type A and B 5 min 5 min 5 min 5 min
PS type C 240 min 120 min 120 min 120 min
Table 4 — Maximum time to remove Storage Device Low Residual Energy fault signal or
message
Maximum Time to Remove Storage Grade 1 Grade 2 Grade 3 Grade 4
Device Low Residual Energy
PS type A and B 5 min 5 min 5 min 5 min
PS type C 10 s 10 s 10 s 10 s
4.3.4 Storage Device – Failure
For PS type A grades 3 and 4 the SD shall be monitored at intervals no greater than 24 h to detect
failure of the SD.
An APS Fault signal or message shall be generated within 10 s of detection of SD failure.
Examples of methods deemed suitable to determine a SD failure condition are given in Annex A.
The APS Fault signal or message shall be removed within 10 s of detection of a normal SD condition.
If the PS is designed to be connected to two or more SDs in a parallel configuration in accordance
with the guidance of the SD manufacturer, they shall be monitored as separate SDs. An APS Fault
signal or message shall be generated upon detection of failure for any one SD. The APS Fault signal
or message shall be removed only when all SDs no longer show a failure condition.
Monitoring for a SD failure condition shall only be applied when the EPS is available.
Following disconnection and reconnection of the EPS, monitoring for a SD failure condition may be
delayed for up to 24 h to enable recharge of the SD.
It is permitted to suspend automatic removal of the APS Fault signal or message if an alternative
mechanism is available to clear the APS Fault signal or message when a normal SD condition exists
for example, removal and reconnection of the EPS.
4.3.5 Low output voltage
For PS types A and B, grades 3 and 4, a Power Output Fault signal or message shall be generated
within 10 s of a low output voltage occurring on one or more independent power outputs, e.g. due to
failure in the PS or intervention of an output protection device.
The Power Output Fault signal or message shall be removed within 10s of the voltage on all
independent power outputs rising above the minimum power output voltage.
NOTE For integrated PS this requirement does not apply to power output(s) that is/are dedicated to the
integrated I&HAS component.
4.3.6 Power Unit failure
4.3.6.1 General
When the EPS is present, for PS types A and B grades 3 and 4, the PU shall be monitored in
accordance with 4.3.6.2 to detect if it can no longer use the energy supplied by the EPS to supply the
minimum power output voltage.
When the EPS is present, for PS type A grades 3 and 4, the PU shall be monitored in accordance with
4.3.6.3 to detect if it can no longer use the energy supplied by the EPS to recharge the SD.
4.3.6.2 Loss of PU Power Output
The PU shall be monitored at intervals no greater than 10 s to verify that it can supply the minimum
power output voltage.
A Power Output Fault signal or message shall be generated within 10 s of detection of failure of the
PU power output.
NOTE This includes a failure of the PU which would not normally result in a low output voltage due to the SD
operating as the APS.
The Power Output Fault signal or message shall be removed within 10 s of the detection of the
restoration of normal operation of the PU power output.
4.3.6.3 Loss of SD recharge
The PU shall be monitored at intervals no greater than 4 h to verify that it can recharge the SD.
A Power Output Fault signal or message shall be generated within 10 s of detection of loss of SD
recharge capability.
The Power Output Fault signal or message shall be removed within 10 s of detection of the restoration
of the capability of the PU to recharge the SD.
4.3.7 Test on demand
A PS type A at Grade 4 shall have means to receive a signal or message to trigger the PS internal
tests of SD Failure and to acknowledge receipt of this trigger input.
NOTE For a PS integrated with a CIE, this requirement can be fulfilled using the internal functionality of the
CIE and its PS circuitry.
The resulting test sequence shall not prevent the PS from operating in accordance with
Tables 1 and 2.
Unless otherwise provided for, the APS Fault signal or message shall be used to communicate receipt
of the Test on Demand request.
The APS Fault signal or message shall be used to communicate the pass or fail result of the internal
test.
One possible signalling sequence meeting the requirements of this clause is given in informative
Annex D.
4.4 APS capability
A PS type A and B shall be capable of continuously supplying its rated output to the I&HAS in the
event of interruption of the EPS.
Any transients that are generated during the changeover period between EPS and APS operation
shall meet the requirements of 4.15.7.
The PS manufacturer shall specify the minimum and maximum SD capacity that can be used with the
PS.
The PS manufacturer shall provide sufficient information to enable calculation of the minimum time
period that the PS can continuously supply its rated output when fitted with this range of SDs. This
shall include the minimum energy level available from the SD in its charged state.
NOTE 1 An SD subject to continuous charging is usually considered to have 100 % capacity available in its
charged state.
NOTE 2 Where the SD is a battery, it is not necessary to take into account the differences in actual capacity
available at differing levels of discharge rate and a simple relationship between rated capacity (Ah), time (h) and
current available (A) is acceptable.
4.5 Recharging for PS Type A
When fitted with a SD of maximum capacity as defined by the PS manufacturer, the PS shall be
capable of recharging the SD to 80 % of its rated capacity following discharge to the minimum level in
accordance with 7.2.5 within the maximum recharge periods as specified in EN 50131-1.
NOTE: There is no requirement on the maximum time period for the SD to reach its charged state
If the SD is deemed unsafe to recharge, then it is permissible for the PS not to automatically recharge
the SD when the EPS is reconnected providing the APS Fault signal or message is still active.
The PS shall be capable of supplying its rated output continuously during recharge of the SD.
The charging characteristics used by the PS to recharge the SD shall remain within the limits
recommended by the SD manufacturer.
A Grade 4 PS shall additionally ensure that the charging characteristics to maintain a SD in its
charged state are within the SD manufacturer’s specifications for the range of SD temperatures
reached for the environmental class.
4.6 Over-voltage protection
To prevent damage being caused to other I&HAS components due to failure of any single PS
component, PS grades 3 and 4 shall include protection to ensure that the voltage at each independent
power output does not exceed 125 % of the maximum power output voltage for each corresponding
independent power output.
4.7 Short circuit protection
Each independent power output shall be protected against short circuit in its connected load.
A short circuit in the load connected to any individual independent power output shall not reduce the
functionality of any other independent power output.
Following removal of the short circuit and replacement or reset of any protection device, all
independent power outputs shall continue to operate normally.
Any transients that are generated during operation of the protection shall meet the requirements of
4.15.7.
4.8 Overload protection
Each independent power output shall be protected against an overload condition in its connected load.
An overload condition on any independent power output shall not reduce the functionality of any other
independent power output.
Following removal of the overload and reset of any protection device, all independent power outputs
shall continue to operate normally.
Any transients that are generated during operation of the protection shall meet the requirements of
4.15.7.
4.9 Deep discharge protection
When deep discharge of a rechargeable SD may cause damage to the SD, protection shall be
provided in PS for grades 3 and 4. The PS manufacturer shall declare the criteria (e.g. voltage) of the
SD under which this protection shall operate.
4.10 Ripple
For PS with dc outputs, the peak to peak ripple content of the voltage at any independent power
output shall be as specified by the PS manufacturer.
The peak to peak value of ripple at the PS independent power outputs, including for PS type A the SD
charging output, as measured using the network specified in Annex B shall not exceed 5 % of the
maximum power output voltage.
4.11 Tamper security
4.11.1 General
Where the PS is housed with one or more components of an I&HAS, the tamper security requirement
of the PS shall be that of those components.
Where the PS is contained in a separate housing, the housing shall meet the tamper security
requirements of this section.
4.11.2 Tamper protection
The construction of the PS housing(s) shall meet the tamper protection requirements of EN 50131-1
and the impact requirements for the appropriate grade according to Table 5. IK impact ratings are
detailed in EN 62262.
This requirement permits the housing to be damaged, provided that a tamper signal or message shall
be generated before unauthorized access to internal elements is possible.
Where the PS is distributed within the housing of other components of the I&HAS, then the tamper
protection of such housings shall comply with the standard for that component.
Provision shall be made to allow adequate fixing of the housing to the mounting surface.
Means of access to internal elements of a PS shall be robust and mechanically secured.
Table 5 — Tamper protection
Event Grade 1 Grade 2 Grade 3 Grade 4
Int Ext Int Ext Int Ext Int Ext
Severity level (IK code) 04 07 06 07 06 07 06 07
(design specification)
Impact energy (Joule) 0,5J 2J 1J 2J 1J 2J 1J 2J
(test condition)
Int = Inside the supervised premises
Ext = Outside the supervised premises (indoor or outdoor).
In grades 1 and 2 this requirement does not include indicators (EXAMPLE: display). In grades 3 and 4
such indicators and any other apertures accessible to a level 1 user are included.
4.11.3 Tamper detection
4.11.3.1 General
A tamper signal or message shall be generated according to the requirements as specified in Table 6
and before access can be gained to override the detection.
Table 6 — Tamper detection
Event Grade 1 Grade 2 Grade 3 Grade 4
Access to the inside of the M M M M
housing
Removal from mounting Op Op M M
Removal from mounting Op M M M
(using wire free
communication with CIE)
a
Penetration of housing Op Op Op M
M = Mandatory
Op = Optional
a
When located outside the supervised premises.
4.11.3.2 Access to inside of the housing
All components, means of adjustment and mounting screws, which, when interfered with, could
adversely affect the operation of the PS, shall be located within the PS housing.
Opening the PS housing by normal means shall require the use of an appropriate tool.
It shall not be possible to gain access to the inside of the housing without generating a tamper signal
or message or causing visible damage.
The housing shall not permit the introduction of tools of dimensions as specified in Table 7 to defeat
the tamper detection before it has operated.
Table 7 — Tool dimension for tamper detection
Dimensions in millimetres
Grade 1 Grade 2 Grade 3 Grade 4
Steel rod as
specified in
2,5 2,5 1 1
EN 60529, with
diameter
Flat bar of
10 × 1 x > 300 10 × 1 x > 300 5 × 0,5 x > 300 5 × 0,5 x > 300
dimension
Steel wire of
tensile strength
650 MPa - NA NA Ø 1 × 100 Ø 1 × 100
825 MPa and
dimensions
NA = Not applicable
In grades 1 and 2 this requirement does not include insertion of the tool via indicators (for example:
display) or other apertures. In grades 3 and 4 such indicators and any other apertures accessible to a
level 1 user are included.
4.11.3.3 Removal from mounting
Attempts to remove the PS from its mounting surface for a distance defined in Table 8 shall generate
a tamper signal or message according to Table 6.
A tamper signal or message shall be generated within 10 s of removal from mounting.
It should not be possible to defeat the removal from mounting detection by sliding a 25 mm x 1 mm
x > 300 mm blade, or by use of pliers (of thickness 5 mm and reach 150 mm) between the mounting
surface and the PS.
Table 8 —Removal f
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