CLC/TS 50131-7:2008
(Main)Alarm systems - Intrusion and hold-up systems - Part 7: Application guidelines
Alarm systems - Intrusion and hold-up systems - Part 7: Application guidelines
These application guidelines include guidance on the design, planning, operation, installation, commissioning and maintenance of I&HAS installed in buildings. Requirements for I&HAS are specified in EN 50131-1:2006. The recommendations of this Technical Specification (TS) also apply to IAS and HAS when these systems are installed independently. When an I&HAS does not include functions relating to the detection of intruders, the requirements relating to intrusion detection do not apply. When an I&HAS does not include functions relating to hold-up, the requirements relating to hold-up do not apply. NOTE Unless otherwise stated the abbreviation I&HAS is intended to also mean IAS and HAS. These application guidelines are intended to assist those responsible for establishing an I&HAS to ascertain the appropriate design of I&HAS both in terms of the extent of the supervision required and in determining the grade of system performance necessary to provide the degree of supervision considered appropriate. These application guidelines are also intended to assist those responsible for selecting equipment appropriate to both the level of performance required and the environmental conditions in which the equipment will be required to operate. These application guidelines are relevant to all classes and grades of I&HAS of any size and complexity. These application guidelines should be read in conjunction with EN 50131-1:2006. NOTE It has been assumed in the drafting of these application guidelines that the execution of its provisions will be entrusted to appropriately qualified and experienced persons. However the guidance is also appropriate to other persons who may be required to purchase or use an I&HAS.
Alarmanlagen - Einbruch- und Überfallmeldeanlagen - Teil 7: Anwendungsregeln
Systèmes d'alarme - Systèmes d'alarme contre l'intrusion et les hold-up - Partie 7: Guide d'application
Alarmni sistemi - Sistemi za javljanje vloma - 7. del: Navodila za uporabo
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2009
1DGRPHãþD
SIST-TS CLC/TS 50131-7:2004
Alarmni sistemi - Sistemi za javljanje vloma - 7. del: Navodila za uporabo
Alarm systems - Intrusion and hold-up systems -- Part 7: Application guidelines
Alarmanlagen - Einbruch- und Überfallmeldeanlagen -- Teil 7: Anwendungsregeln
Systèmes d'alarme - Systèmes d'alarme contre l'intrusion et les hold-up -- Partie 7:
Guide d'application
Ta slovenski standard je istoveten z: CLC/TS 50131-7:2008
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.
TECHNICAL SPECIFICATION
CLC/TS 50131-7
SPÉCIFICATION TECHNIQUE
December 2008
TECHNISCHE SPEZIFIKATION
ICS 13.310 Supersedes CLC/TS 50131-7:2003
English version
Alarm systems -
Intrusion and hold-up systems -
Part 7: Application guidelines
Systèmes d'alarme - Alarmanlagen -
Systèmes d'alarme Einbruch- und
contre l'intrusion et les hold-up - Überfallmeldeanlagen -
Partie 7: Guide d'application Teil 7: Anwendungsregeln
This Technical Specification was approved by CENELEC on 2008-06-20.
CENELEC members are required to announce the existence of this TS in the same way as for an EN and to
make the TS available promptly at national level in an appropriate form. It is permissible to keep conflicting
national standards in force.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. CLC/TS 50131-7:2008 E
Foreword
This Technical Specification was prepared by the Technical Committee CENELEC TC 79, Alarm
systems.
The text of the draft was circulated for voting in accordance with the Internal Regulations, Part 2,
Subclause 11.3.3.3 and was approved by CENELEC as CLC/TS 50131-7 on 2008-06-20.
This Technical Specification supersedes CLC/TS 50131-7:2003.
The following date was fixed:
– latest date by which the existence of the CLC/TS
has to be announced at national level (doa) 2009-02-12
The EN/TS 50131 series will consist of the following parts, under the general title Alarm systems –
Intrusion and hold-up systems:
Part 1 System requirements
Part 2-2 Intrusion detectors – Passive infrared detectors
Part 2-3 Requirements for microwave detectors
Part 2-4 Requirements for combined passive infrared and microwave detectors
Part 2-5 Requirements for combined passive infrared and ultrasonic detectors
Part 2-6 Opening contacts (magnetic)
Part 2-7 Intrusion detectors – Glass break detectors
Part 2-8 Intrusion detectors – Vibration detectors
Part 2-9 Intrusion detectors – Active infrared detectors
Part 2-10 Intrusion detectors – Proximity detectors
Part 3 Control and indicating equipment
Part 4 Warning devices
Part 5-1 Requirements for interconnections equipment using dedicated wired links
Part 5-2 Requirements for interconnections equipment using non-dedicated wired links
Part 5-3 Requirements for interconnections equipment using radio frequency techniques
Part 6 Power supplies
Part 7 Application guidelines
Part 8 Security fog device/systems
– 3 – CLC/TS 50131-7:2008
Contents
Introduction . 5
1 Scope . 7
2 Normative references . 7
3 Definitions and abbreviations . 7
3.1 Definitions . 7
3.2 Abbreviations . 12
4 Security grade of I&HAS . 12
4.1 Security grading . 12
5 Environmental classification . 13
5.1 Environmental Class I – Indoor . 13
5.2 Environmental Class II – Indoor – General . 13
5.3 Environmental Class III – Outdoor – Sheltered or indoor extreme conditions . 13
5.4 Environmental Class IV – Outdoor – General . 13
6 General . 13
6.1 Other components . 14
6.2 Electrical safety . 14
6.3 Unwanted alarms . 14
6.4 Responsibility . 14
6.5 Qualifications . 14
6.6 Competence . 14
6.7 Tools . 14
6.8 Confidentiality . 14
6.9 Consultation . 14
6.10 Compatibility . 14
7 System design . 15
7.1 Location survey – Risk . 15
7.2 Location survey – Other influences . 15
7.3 System design p r oposal . 16
8 Installation planning . 20
8.1 General . 20
9 System installation . 22
9.1 Installation process . 22
10 Inspection, functional testing and commissioning . 22
10.1 Inspection. 22
10.2 Functional testing . 22
10.3 Commissioning . 22
10.4 Handover . 22
10.5 Test period . 23
10.6 Acceptance . 23
10.7 As-fitted document . 23
10.8 Certificate of conformance . 23
11 Documentation and records . 24
11.1 Documentation . 24
11.2 Records. 24
12 Operation of I&HAS . 25
13 Maintenance and repair of I&HAS . 25
13.1 General . 25
13.2 Inspection and servicing . 25
13.3 Repair . 26
Annex A (normative) Special national conditions . 27
Annex B (informative) System design – Location survey – Contents . 28
Annex C (informative) Systems design – Location survey – Building . 29
Annex D (informative) Location survey – Influences affecting I&HAS originating within
the supervised premises . 31
Annex E (informative) Location survey – Influences affecting I&HAS originating outside
the supervised premises . 34
Annex F (informative) Levels of supervision. 36
Annex G (normative) Information to be included in the system design proposal . 37
Annex H (informative) Technical survey . 39
Annex I (informative) System record (log book) . 51
Annex J (informative) Maintenance . 52
Annex K (informative) Flow chart . 53
Bibliography . 54
Table
Table F.1 – Levels of supervision . 36
Figure
Figure K.1 – Flow chart . 53
– 5 – CLC/TS 50131-7:2008
Introduction
These application guidelines are intended to provide advice relating to the design, installation,
operation and maintenance of Intruder and Hold-up Alarm Systems (I&HAS). The purpose of this
document is to ensure, as far as is practical, that I&HAS provide the required performance with a
minimum of unwanted alarms.
These application guidelines are set out in the logical order in which an I&HAS would normally be
designed and installed. Each procedure is set out separately in the guideline but it is accepted that, in
practice, some of the procedures may be carried out simultaneously. Annex K describes in the form of
a flowchart the main processes and documentation included in this application guideline.
Those responsible for the design, installation planning, system installation, commissioning, operation
and maintenance of I&HAS should be conversant with other European Standards relating to I&HAS,
particularly those relating to system performance, control and indicating equipment, detectors, warning
devices, power supplies and alarm transmission systems.
These application guidelines are set out in seven main clauses; a brief explanation of each section is
shown below.
i) Clause 7 – System design
This clause is intended to assist those responsible for designing I&HAS to design I&HAS suitable
for the premises to be supervised in relation to the perceived risk(s). The design of I&HAS will
depend on many factors all of which will influence more or less the design of I&HAS.
Consideration of these factors will result in a system design proposal for an I&HAS with the
appropriate extent, security grade and environmental class.
ii) Clause 8 – Installation planning
This clause is intended to help those responsible for installing I&HAS by highlighting issues which
should be considered prior to commencing the installation of the I&HAS.
iii) Clause 9 – System installation
In this clause, guidance is given with regard to issues arising during the installation of I&HAS.
This clause is intended to ensure I&HAS is correctly installed as specified at the design stage.
iv) Clause 10 – Inspection, functional testing and commissioning
In this clause, guidance is given on issues arising after I&HAS has been installed. The clause is
intended to ensure I&HAS has been installed as specified and also provides the level of
performance intended at the design stage. Guidance is also provided with regard to the proper
commissioning and handing over of the system to the user and to the documents, records and
operating instructions which should be provided.
v) Clause 11 – Documentation and records
This clause describes the documentation which should be provided to the client on completion of
I&HAS. The documents are intended to provide a history of modifications to I&HAS, based on the
as-fitted document, prepared when I&HAS installation was completed.
The records are intended to chronicle any corrective action carried out following unwanted alarm
conditions and details of any repairs or modifications to I&HAS. The record should also include
details of temporary fault conditions.
vi) Clause 12 – Operation of I&HAS
This clause describes the responsibility of the client or user of I&HAS to properly maintain I&HAS
and to ensure it is operated correctly.
vii) Clause 13 – Maintenance and repair of I&HAS
This clause describes how I&HAS should be maintained and repaired to ensure I&HAS continues
to provide the level of performance intended at the design stage.
– 7 – CLC/TS 50131-7:2008
1 Scope
These application guidelines include guidance on the design, planning, operation, installation,
commissioning and maintenance of I&HAS installed in buildings. Requirements for I&HAS are
specified in EN 50131-1:2006.
The recommendations of this Technical Specification (TS) also apply to IAS and HAS when these
systems are installed independently.
When an I&HAS does not include functions relating to the detection of intruders, the requirements
relating to intrusion detection do not apply.
When an I&HAS does not include functions relating to hold-up, the requirements relating to hold-up do
not apply.
NOTE Unless otherwise stated the abbreviation I&HAS is intended to also mean IAS and HAS.
These application guidelines are intended to assist those responsible for establishing an I&HAS to
ascertain the appropriate design of I&HAS both in terms of the extent of the supervision required and
in determining the grade of system performance necessary to provide the degree of supervision
considered appropriate.
These application guidelines are also intended to assist those responsible for selecting equipment
appropriate to both the level of performance required and the environmental conditions in which the
equipment will be required to operate.
These application guidelines are relevant to all classes and grades of I&HAS of any size and
complexity. These application guidelines should be read in conjunction with EN 50131-1:2006.
NOTE It has been assumed in the drafting of these application guidelines that the execution of its provisions will be entrusted
to appropriately qualified and experienced persons. However the guidance is also appropriate to other persons who may be
required to purchase or use an I&HAS.
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 50131-1:2006, Alarm systems – Intrusion and hold-up systems – Part 1: System requirements
EN 61082-1:2006, Preparation of documents used in electrotechnology – Part 1: Rules
(IEC 61082-1:2006)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
alarm
warning of the presence of a hazard to life, property or the environment
3.1.2
alarm receiving centre
continuously manned centre to which information concerning the status of one or more I&HAS is
reported
3.1.3
alarm company
organization which provides services for I&HAS
3.1.4
alarm condition
condition of an I&HAS, or part thereof, which results from the response of the system to the presence
of a hazard
3.1.5
alarm system
electrical installation which responds to the manual or automatic detection of the presence of a hazard
3.1.6
alarm transmission system
equipment and network used to transfer information concerned with the state of one or more I&HAS to
one or more alarm receiving centre
NOTE Alarm transmission systems exclude local direct connections, i.e. interconnections between parts of an I&HAS which do
not require an interface to transform I&HAS information into a form suitable for transmission.
3.1.7
ancillary control equipment
equipment used for supplementary control purposes
3.1.8
as-fitted document
document in which details of I&HAS as actually installed are recorded
3.1.9
control and indicating equipment
equipment for receiving, processing, controlling, indicating and initiating, the onward transmission of
information
3.1.10
commissioning
putting an I&HAS into operational mode
3.1.11
client
individual or corporate body responsible for acquiring the I&HAS
3.1.12
detector
device designed to generate an intruder alarm signal or message in response to the sensing of an
abnormal condition indicating the presence of a hazard
3.1.13
documentation
paperwork (or other media) prepared during the design, installation, commissioning and handover of
I&HAS recording details of the I&HAS
3.1.14
entry/exit route
route by which authorized entry or exit to the supervised area or part thereof may be achieved
– 9 – CLC/TS 50131-7:2008
3.1.15
equipment schedule
list of equipment to be installed or actually installed
3.1.16
fault condition
condition of an alarm system which prevents an I&HAS or parts thereof from functioning normally
3.1.17
entry/exit point
point at which the user enters or leaves the supervised premises
EXAMPLE Entrance door to supervised premises
3.1.18
hold-up alarm system
alarm system providing the means for a user to deliberately generate a hold-up alarm condition
3.1.19
hold-up device
device which when triggered causes a hold-up alarm signal or message to be generated
3.1.20
hold-up alarm condition
condition of an alarm system, or part thereof, which results from the response of an I&HAS to the
triggering of a hold-up device
3.1.21
inhibit
status of a part of an I&HAS in which an alarm condition cannot be notified, such status remaining until
I&HAS or part thereof is unset
3.1.22
installation company
company responsible for installing the I&HAS
3.1.23
installation plan
document describing the methodology to be followed during the installation of the I&HAS
3.1.24
installer
individual or individuals responsible for carrying out the installation process
3.1.25
intruder alarm system
alarm system to detect and indicate the presence, entry or attempted entry of an intruder into
supervised premises
3.1.26
interconnection
means by which messages and/or signals are transmitted between I&HAS components
3.1.27
isolation
status of a part of an alarm system in which an alarm condition cannot be notified, such status
remaining until deliberately cancelled
3.1.28
non-specific wired interconnection
interconnection conveying information pertaining to two or more applications
3.1.29
normal condition
state of an I&HAS system where no conditions exist which would prevent the setting of the I&HAS
3.1.30
notification
passing of an alarm, tamper or fault condition to warning devices and/or alarm transmission systems
3.1.31
operational mode
state of an alarm system when it is complete, commissioned and ready for use
3.1.32
part set
status of an I&HAS in which an intruder alarm condition can be notified but part of I&HAS is unset
3.1.33
power supply
that part of an alarm system which provides power for I&HAS or any part thereof
3.1.34
response authority
designated authority with responsibility for attending the supervised premises following an alarm and
taking the appropriate action
3.1.35
set
status of an I&HAS or part thereof in which an alarm condition can be notified
3.1.36
specific wired interconnection
interconnection conveying information pertaining to one application
3.1.37
specifier
individual or corporate body responsible for stipulating the requirements I&HAS will be required to
meet
3.1.38
subsystem
that part of an I&HAS located in a clearly defined part of the supervised premises capable of
independent operation
3.1.39
supervised premises
part of a building and/or area in which an intrusion, attempted intrusion, or the triggering of a hold-up
device may be detected by an I&HAS
3.1.40
supervised premises transceiver
equipment at the supervised premises, including the interface to the alarm system and the interface to
the alarm transmission network
3.1.41
system components
individual items of equipment which constitute an I&HAS when configured together
– 11 – CLC/TS 50131-7:2008
3.1.42
system record
history of maintenance, faults, repair or modifications to the IAS
EXAMPLE A log book
3.1.43
tamper
deliberate interference with an I&HAS or part thereof
3.1.44
tamper alarm
alarm generated by tamper detection
3.1.45
tamper condition
condition of an I&HAS in which tampering has been detected
3.1.46
tamper protection
methods or means used to protect an I&HAS or part thereof against deliberate interference.
NOTE EN 50131-1:2006, 8.7.1, describes requirements for tamper protection
3.1.47
technical survey
inspection of the premises to be supervised, carried out after the proposal has been accepted, to
verify the selection, location and siting of system components and to consider the selection of
components in relation to the environmental conditions to which the system components will be
exposed
3.1.48
unset
status of an I&HAS or part thereof in which an alarm condition cannot be notified
3.1.49
user
person authorized to operate an I&HAS
3.1.50
unknown alarm
alarm for which the cause cannot be positively identified
3.1.51
unwanted alarm
alarm conditions not generated by an intrusion or attempted intrusion into the supervised premises
3.1.52
warning device
a device that gives an audible alarm in response to a notification
NOTE A warning device may also provide alert indications providing such indications are easily distinguishable from an alarm
3.1.53
wire-free interconnection
interconnection conveying information between I&HAS components without physical media
3.1.54
zone
assessed area of a supervised premises where an intrusion, attempted intrusion, or the triggering of a
hold-up device may be detected by an I&HAS
3.2 Abbreviations
For the purposes of this document, the following abbreviations apply.
ACE Ancillary Control Equipment
APS Alternative Power Source
ARC Alarm Receiving Centre
ATS Alarm Transmission System
CIE Control and Indicating Equipment
HAS Hold-up Alarm System(s)
I&HAS Intrusion and Hold-up Alarm System(s)
IAS Intruder Alarm System(s)
PIR Passive Infra-Red
PS Power Supply
SPT Supervised Premises Transceiver
WD Warning Device
4 Security grade of I&HAS
The security grade of I&HAS will depend upon the performance required as determined during the risk
assessment and location survey.
An I&HAS may include I&HAS components of differing grades when divided into clearly defined
sub-systems. When I&HAS is divided into sub-systems, each sub-system may be of a different grade.
The grade of a sub-system shall be that of the lowest graded component within it.
Components shared by more than one sub-system should have a grade equal to that of the highest
sub-system grade, e.g. control and indicating equipment, alarm transmission system, warning devices
and power supplies.
4.1 Security grading
EN 50131-1:2006 describes four security grades which should be considered when selecting
equipment. These are as follows.
4.1.1 Grade 1 – Low risk
An intruder or robber is expected to have little knowledge of I&HAS and be restricted to a limited range
of easily available tools.
4.1.2 Grade 2 – Low to medium risk
An intruder or robber is expected to have a limited knowledge of I&HAS and the use of a general
range of tools and portable instruments (e.g. a multi-meter).
4.1.3 Grade 3 – Medium to high risk
An intruder or robber is expected to be conversant with I&HAS and have a comprehensive range of
tools and portable electronic equipment.
– 13 – CLC/TS 50131-7:2008
4.1.4 Grade 4 – High risk
To be used when security takes precedence over all other factors. An intruder or robber is expected to
have the ability or resource to plan an intrusion or robbery in detail and have a full range of equipment,
including means of substitution of components in an I&HAS.
NOTE In all grades the term “intruder” is intended to embrace other types of threat (e.g. robbery or the threat of physical
violence, which might influence the design of an I&HAS).
5 Environmental classification
The environmental class of each system component should be determined by the environmental
conditions in which the component is expected to operate.
NOTE 1 Classes I, II, III and IV are progressively more severe and therefore Class IV components may, for example, be used
in Class III I&HAS.
NOTE 2 Annex A includes special national conditions for specified countries.
EN 50131-1:2006 defines 4 environmental classes as shown below.
5.1 Environmental Class I – Indoor
Environmental influences normally experienced indoors when the temperature is well maintained (e.g.
in a residential or commercial property).
NOTE Temperatures may be expected to vary between +5 °C and +40 °C.
5.2 Environmental Class II – Indoor – General
Environmental influences normally experienced indoors when the temperature is not well maintained
(e.g. in corridors, halls or staircases and where condensation can occur on windows and in unheated
storage areas or warehouses where heating is intermittent).
NOTE Temperatures may be expected to vary between -10 °C and +40 °C.
5.3 Environmental Class III – Outdoor – Sheltered or indoor extreme conditions
Environmental influences normally experienced out of doors when I&HAS components are not fully
exposed to the weather or indoors where environmental conditions are extreme.
NOTE Temperatures may be expected to vary between -25 °C and +50 °C.
5.4 Environmental Class IV – Outdoor – General
Environmental influences normally experienced out of doors when I&HAS components are fully
exposed to the weather.
NOTE Temperatures may be expected to vary between -25 °C and +60 °C.
6 General
I&HAS should be installed, operated (see Clause 12) and maintained in a manner consistent with the
manufacturers recommendations for the equipment and the environmental conditions under which
I&HAS is expected to operate.
6.1 Other components
Components of other systems may be combined or integrated with I&HAS providing the performance
of I&HAS components are not adversely influenced.
6.2 Electrical safety
National or European requirements relating to safety may exist. Such requirements are not included in
these application guidelines and reference should be made directly to the relevant National or
European Standards.
6.3 Unwanted alarms
It is recommended that care should be taken by system designers, installation companies, alarm
companies and users, to minimize unwanted alarms.
6.4 Responsibility
Responsibility for each individual stage in the process of supplying an I&HAS; design, installation,
commissioning and hand-over should be clearly defined and agreed between the relevant parties.
6.5 Qualifications
Persons responsible for risk assessment and the design, installation planning, system installation,
maintenance and repair of I&HAS should hold appropriate qualifications.
NOTE These qualifications required may vary from country to country.
6.6 Competence
Persons responsible for risk assessment and the design, installation planning, system installation,
maintenance and repair of I&HAS should have the necessary training and experience.
6.7 Tools
Persons responsible for installation planning, system installation, commissioning, maintenance, repair
and inspection of I&HAS should have the appropriate tools and test equipment.
6.8 Confidentiality
Information relating to the design, installation, operation and maintenance of I&HAS should be treated
as confidential.
6.9 Consultation
The design of a system should be determined in consultation with the client or specifier of I&HAS (or
their representative) and any other interested parties, e.g. insurers or police.
When considered necessary, expert advice should be obtained.
The designer of I&HAS should consider any requirements for third party approval of the whole I&HAS
or a particular system component. Any such requirements should be identified at an early stage in the
design of I&HAS and the selection of system components.
6.10 Compatibility
Care should be taken during the selection of components to ensure all system components are
compatible. Where any uncertainty arises the appropriate consultation should take place, e.g. with the
manufacturer, supplier, a test house or an other third party.
– 15 – CLC/TS 50131-7:2008
7 System design
The objectives of the system design stage are to determine the extent of I&HAS and select
components of the appropriate functionality/performance criteria, grade and environmental classification
and to prepare a system design proposal, e.g. number and type of detectors and their location.
7.1 Location survey – Risk
An assessment of the premises to be supervised should be carried out to determine the required
grade of the I&HAS.
7.1.1 Contents
The contents at risk within the supervised premises should be considered when determining the
design of the I&HAS. Annex B includes a list of examples of factors which should be considered. The
list should not be regarded as definitive as other factors may be relevant in specific circumstances.
7.1.2 Building
Among other factors, the construction, location, type of occupancy and theft and robbery history of the
supervised premises should be considered when designing an I&HAS. Annex C includes a list of
examples of factors which should be considered, the list should not be regarded as definitive as others
factors may be relevant in specific circumstances.
7.1.3 Minimum supervision levels for IAS
The level of supervision required will be influenced by the factors described in Annexes B and C.
Based on the assessment of these, the specifier should assess the method of intrusion which may be
expected at different points throughout the premises and select the grade of the IAS and design the
IAS accordingly. Examples of methods of intrusion to be considered are shown, by grade, in Annex F.
7.1.4 Minimum supervision levels for HAS
Hold-up devices should only be installed when the need for such devices has been established by a
risk assessment, i.e. not installed as “addition” to an IAS.
Consideration should be given to selecting the type of notification appropriate to the risk.
Consideration should be given to the consequences of activation of a WD following the triggering of a
hold-up device.
The level of supervision required will be influenced by the factors described in Annexes B and C.
7.2 Location survey – Other influences
The existing and/or potential conditions at the premises to be supervised should be considered in the
design of the I&HAS. Conditions which may influence the operation of I&HAS fall into two categories:
• those conditions occurring within the supervised premises over which the user of I&HAS may be
reasonably expected to exercise control. Annex D includes a list of examples of factors which
should be considered, the list should not be regarded as definitive as others factors may be
relevant in specific circumstances;
• those conditions occurring outside the supervised premises over which the user cannot
reasonably be expected to exercise control. Annex E includes a list of examples of factors which
should be considered, the list should not be regarded as definitive as other factors may be
relevant in specific circumstances.
NOTE The location survey is intended to identify, during the preparation of the system design proposal, factors which may
influence the selection and siting of system components, particularly detectors. Additional factors may be identified during the
technical survey (see 8.1.3) which may result in amendments to the system design proposal.
7.3 System design proposal
A system design proposal should be prepared for submission to the client or an agent appointed by
the client. The proposal should include the information detailed in Annex G.
The system design proposal may be subject to alteration at other stages in the implementation of the
system, e.g. during the installation planning and installation implementation stages.
Any such changes should be agreed between the relevant parties and the documentation amended
accordingly.
7.3.1 Selection of components
Only components meeting the appropriate security grade and environmental class should be selected.
Due regard should be taken of the need to minimize the generation of unwanted alarms.
Where standards for a system component do not exist it is permitted to use components not having a
grade or class. In such circumstances the grade of the system will be the grade of the lowest graded
component.
7.3.2 Siting of equipment
7.3.2.1 Siting of CIE and ACE
CIE should be sited within the supervised area. Where an I&HAS is divided into sub-systems of
different grades the CIE should be within the area supervised by the sub-system with the highest
grade. In grade 3 and 4 I&HAS setting any sub-system(s) should also set the sub-system supervising
the area in which the CIE is located. Depending of the type of setting/unsetting the ACE – or parts of
the ACE – may be located outside of the supervised area.
Examples of issues to be considered when siting CIE and ACE are shown in Clauses H.21 and H.22.
When unsetting is to be started outside the supervised area and completed inside the supervised area
consideration should be given to siting the CIE or ACE adjacent to the final exit point of the supervised
area, to limit the route from the point of entry to the CIE or ACE. Care should be taken to site the CIE
or ACE so as to prevent observation of the operation of the CIE or ACE by unauthorized persons.
7.3.2.2 Siting of SPT
SPT should be sited within the supervised area. Where an I&HAS is divided into sub-systems of
different grades the SPT should be within the area supervised by the sub-system with the highest
grade. Examples of issues to be considered when siting SPT are shown in Clause H.24.
7.3.2.3 Siting of detectors
Detectors should be sited in compliance with the manufacturer’s recommendations and to provide the
range and coverage determined during the risk assessment stage of I&HAS design. Examples of
issues to be considered when siting detectors are shown in Annex H.
7.3.2.4 Siting of hold-up devices
Hold-up devices should be sited in compliance with the manufacturer’s recommendations and to
provide a high chance to trigger these in a case of hold-up or threat. Examples of issues to be
considered when siting hold-up devices are shown in Clause H.20.
– 17 – CLC/TS 50131-7:2008
7.3.2.5 Siting of warning devices
WD should be located in positions which are not readily accessible (so as to minimize risk of
intentional or unintentional damage) consistent with reasonable access for servicing and so as to give
effective notification of alarms.
WD should be so mounted as to minimise the possibility of removal without generating an alarm
condition.
Interconnections to externally mounted WD, which are accessible from outside the supervised area,
should be provided with suitable tamper protection, e.g. enclosed in metal conduit.
Operation of a warning device may be suppressed in the event of the operation of a hold-up device.
7.3.3 Interconnections
Interconnections appropriate to the system performance required and the environmental conditions
should be selected.
Where wired interconnections are used consideration should be given to the relevant electrical
installation specifications and to equipment manufacturers recommendations.
7.3.3.1 Specific wired interconnections
When specific wired interconnections are selected these should be run inside the supervised
premises. When it is impractical for interconnections to be routed inside the supervised area they
should be provided with suitable tamper protection, e.g. enclosed in metal conduit.
The size and material of cables used for wired interconnections and its insulation should be such that
the voltage delivered to any system component is not less than the minimum specified operating
voltage, when measured in the maximum current condition, with the minimum power supply voltage.
All cables used for interconnections should be adequately supported and its installation should
conform to good working practices.
Cables should be run in positions where there is the least risk of physical damage. If risk of physical
damage exists the cable should be mechanically protected, e.g. by ducting, trunking or conduit. When
these are made of conductive material due regard should be paid to their proper earthing and correct
grounding.
Electrical interference may cause unwanted alarms. This should generally be overcome by filtering the
mains input to the IAS, separating interconnecting cables from higher rated voltage and by screening.
Interconnection wiring should not be run in the same conduit or trunking as cables carrying high
voltage, e.g. mains supplies, or cables carrying high frequency signals unless they are physically
separated and/or suitably screened so as to prevent cross interference.
All joints in interconnection wiring should be mechanically and electrically secure.
To facilitate rapid tracing of faults in interconnecting wiring all cables should be identifiable at their
ends. Sufficient test points, contained in junction boxes, should be provided for efficient fault
identification, e.g. colour coded insulation, labelled.
Care should be taken with regard to the size and type of cable selected, its routing and fixing.
Examples of issues to be considered when specifying specific wired interconnections are included
in H.1.1.
7.3.3.2 Non-specific wired interconnections
When non-specific wired interconnections are selected, in addition to the requirements included in
7.3.3.1 above, consideration should be given to the effect other systems sharing the interconnections
may have on the performance of the I&HAS. This issue may be particularly relevant should the other
system(s) develop a fault. Examples of issues to be considered when specifying non-specific wired
interconnections are included in H.1.2.
7.3.3.3 Wireless interconnections
When wireless interconnections are selected careful consideration should be given to the influence of
intentional or unintentional transmissions using the same frequency and/or means of signal
modulation as those of the I&HAS. Such transmissions may result in I&HAS generating tamper or fault
conditions or prevent the interconnections functioning correctly. Examples of issues to be considered
when specifying wireless interconnections are included in H.1.3.
7.3.4 Setting and unsetting
Care should be taken when selecting the means of setting and unsetting. Whenever possible
completion of setting and unsetting should require a deliberate action by the user.
Audible or visual indication should be perceivable to indicate when the setting or unsetting procedure
is in progress and/or has been completed.
7.3.4.1 Setting
Setting may be either started within the supervised premises and completed outside the supervised
premises or the entire setting procedure may be completed outside the supervised premi
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