Alarm systems - Intrusion and hold-up systems - Part 8: Security fog device/systems

IEC 62642-8:2011 specifies the requirements for security fog systems as a part of an I&HAS. It covers application and performance and also gives the necessary tests and trials to ensure efficiency and reliability of such obscuration devices. It also gives guidance on the criteria for design, installation, operation and maintenance of security fog systems.

Systèmes d'alarme - Systèmes d'alarme contre l'intrusion et les hold-up - Partie 8: Systèmes/dispositifs générateurs de fumée

La CEI 62642-8:2011 spécifie les exigences relatives aux systèmes générateurs de fumée dans le cadre d'un système d'alarme contre l'intrusion et les hold-up (I&HAS). Elle couvre l'application et les performances et fournit également les essais et mises à l'épreuve nécessaires pour garantir l'efficacité et la fiabilité de tels dispositifs d'obscurcissement. Elle donne par ailleurs des lignes directrices sur les critères de conception, d'installation, de fonctionnement et de maintenance des systèmes générateurs de fumée.

General Information

Status
Published
Publication Date
09-Feb-2011
Current Stage
PPUB - Publication issued
Start Date
30-Apr-1992
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IEC 62642-8
Edition 1.0 2011-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Alarm systems – Intrusion and hold-up systems –
Part 8: Security fog device/systems
Systèmes d'alarme – Systèmes d'alarme contre l’intrusion et les hold-up –
Partie 8: Systèmes/dispositifs générateurs de fumée
IEC 62642-8:2011
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62642-8
Edition 1.0 2011-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Alarm systems – Intrusion and hold-up systems –
Part 8: Security fog device/systems
Systèmes d'alarme – Systèmes d'alarme contre l’intrusion et les hold-up –
Partie 8: Systèmes/dispositifs générateurs de fumée
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX T
ICS 13.320 ISBN 978-2-88912-357-5
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – 62642-8  IEC:2011
CONTENTS

FOREWORD ........................................................................................................................... 4

INTRODUCTION ..................................................................................................................... 6

1 Scope ............................................................................................................................... 7

2 Normative references ....................................................................................................... 7

3 Terms, definitions and abbreviations ................................................................................ 7

3.1 Terms and definitions .............................................................................................. 7

3.2 Abbreviations .......................................................................................................... 8

4 Environmental .................................................................................................................. 8

4.1 Environmental classification .................................................................................... 8

4.2 Environmental tests ................................................................................................. 8

5 Access levels ................................................................................................................... 9

6 Regulation requirements ................................................................................................... 9

6.1 General ................................................................................................................... 9

6.2 Electrical safety ....................................................................................................... 9

6.3 Safety data sheets .................................................................................................. 9

6.4 EMC requirements ................................................................................................... 9

6.5 Warning signs ......................................................................................................... 9

6.6 Pressure vessels ..................................................................................................... 9

7 Device/system parameters ............................................................................................. 10

7.1 Performance .......................................................................................................... 10

7.2 Battery backup requirement ................................................................................... 10

7.3 IP/IK rating ............................................................................................................ 10

7.4 Wire free interconnections ..................................................................................... 10

8 General requirements ..................................................................................................... 10

8.1 Tamper.................................................................................................................. 10

8.2 Fog neutralisation .................................................................................................. 10

8.3 Discharge nozzle ................................................................................................... 10

8.3.1 Nozzle protection ....................................................................................... 10

8.3.2 Nozzle blocked .......................................................................................... 11

8.4 Fog eject limiter..................................................................................................... 11

8.5 Heating unit ........................................................................................................... 11

8.6 Overheating .......................................................................................................... 11

8.7 Accidental triggering .............................................................................................. 11

8.8 Isolation of the security fog system........................................................................ 11

8.9 Fixings .................................................................................................................. 11

9 Operational requirements ............................................................................................... 11

9.1 Communication ..................................................................................................... 11

9.1.1 Minimum information to be communicated ................................................. 11

9.1.2 Non-critical faults....................................................................................... 12

9.1.3 Optional signals ......................................................................................... 12

9.2 Fault monitoring .................................................................................................... 12

9.3 Power failure ......................................................................................................... 12

9.4 Efficacy ................................................................................................................. 12

9.5 Non-toxicity ........................................................................................................... 12

9.6 Residue ................................................................................................................. 12

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62642-8  IEC:2011 – 3 –

10 Consumables ................................................................................................................. 12

10.1 Replenishment ...................................................................................................... 12

10.2 Formulation ........................................................................................................... 12

10.3 Traceability ........................................................................................................... 13

11 Marking .......................................................................................................................... 13

12 Documentation ............................................................................................................... 13

13 Design, installation, operation and maintenance (informative) ........................................ 13

Annex A (normative) Performance tests ............................................................................... 14

Annex B (normative) Security fog system warning sign ........................................................ 20

Annex C (informative) Guidance on design, installation, operation and maintenance of

the security fog system ......................................................................................................... 21

Bibliography .......................................................................................................................... 23

Figure A.1 – Test chamber .................................................................................................... 18

Figure A.2 – Target ............................................................................................................... 19

Figure A.3 – Partial target ..................................................................................................... 19

Figure B.1 – Security fog system warning sign ...................................................................... 20

Table A.1 – Fog output versus time elapsed, since first activation ......................................... 16

Table A.2 – Correspondence between visibility, density and obscuration .............................. 16

Table B.1 – How to calculate the size of sign you need ......................................................... 20

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– 4 – 62642-8  IEC:2011
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ALARM SYSTEMS –
INTRUSION AND HOLD-UP SYSTEMS –
Part 8: Security fog device/systems
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

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governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

This International Standard IEC 62642-8 has been prepared by IEC technical committee 79:

Alarm and electronic security systems.
This standard is based on EN 50131-8 (2009).
The text of this standard is based on the following documents:
FDIS Report on voting
79/327/FDIS 79/336/RVD

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

---------------------- Page: 6 ----------------------
62642-8  IEC:2011 – 5 –

A list of all parts of the IEC 62642 series can be found, under the general title Alarm systems

– Intrusion and hold-up systems, on the IEC website.

The committee has decided that the contents of this publication will remain unchanged until

the stability result date indicated on the IEC web site under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
---------------------- Page: 7 ----------------------
– 6 – 62642-8  IEC:2011
INTRODUCTION

This part 8 of the IEC 62642 series of standards gives requirements for security fog

device/systems used in intrusion and hold-up alarm systems. The other parts of this series of

standards are as follows:
Part 1 System requirements
Part 2-2 Intrusion detectors – Passive infrared detectors
Part 2-3 Intrusion detectors – Microwave detectors
Part 2-4 Intrusion detectors – Combined passive infrared / microwave detectors
Part 2-5 Intrusion detectors – Combined passive infrared / ultrasonic detectors
Part 2-6 Intrusion detectors – Opening contacts (magnetic)
Part 2-71 Intrusion detectors – Glass break detectors – Acoustic
Part 2-72 Intrusion detectors – Glass break detectors – Passive
Part 2-73 Intrusion detectors – Glass break detectors – Active
Part 3 Control and indicating equipment
Part 4 Warning devices

Part 5-3 Interconnections – Requirements for equipment using radio frequency techniques

Part 6 Power supplies
Part 7 Application guidelines
Part 8 Security fog devices/systems

This International Standard applies to a security fog system that is part of an Intruder and

Hold-up Alarm System (I&HAS) and is used both as a security deterrent device for building

security and as a crime reduction device for the protection of people.

This International Standard is intended to assist insurers, intruder alarm companies,

customers and the police in understanding the principles and specification of a security fog

system.

The purpose of a security fog system is to reduce the visibility in a protected area by the use

of a non-toxic fog in order to form a barrier between the criminal and the criminal’s intended

target.

This International Standard is not intended to cover standalone or mobile security fog

systems.

This International Standard has been designed to be flexible enough to encourage and

encompass future developments in the field of security fog systems.
---------------------- Page: 8 ----------------------
62642-8  IEC:2011 – 7 –
ALARM SYSTEMS –
INTRUSION AND HOLD-UP SYSTEMS –
Part 8: Security fog device/systems
1 Scope

This part of the IEC 62642 series specifies the requirements for security fog systems as a part

of an I&HAS. It covers application and performance and also gives the necessary tests and

trials to ensure efficiency and reliability of such obscuration devices.

This International Standard also gives guidance on the criteria for design, installation,

operation and maintenance of security fog systems.
2 Normative references

The following referenced documents are indispensable for the application of this document.

For dated references, only the edition cited applies. For undated references, the latest edition

of the referenced document (including any amendments) applies.

IEC 60065:2001, Audio, video and similar electronic apparatus – Safety requirements

IEC 61000-6-3:2006, Electromagnetic compatibility (EMC) – Part 6-3: Generic standards –

Emission standard for residential, commercial and light-industrial environments
IEC 62599-1:2010, Alarm systems – Part 1: Environmental test methods

IEC 62599-2:2010, Alarm systems – Part 2: Electromagnetic compatibility – Immunity

requirements for components of fire and security alarm systems
IEC 62642-1:2010, Alarm systems – Intrusion and hold-up systems – Part 1: System
requirements

IEC 62642-5-3, Alarm systems – Intrusion and hold-up systems – Part 5-3 : Interconnections

– Requirements for equipment using radio frequency techniques
3 Terms, definitions and abbreviations
3.1 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 62642-1, as well as

the following apply.
3.1.1
confirmed intrusion

signals or messages emanating from two or more independent intrusion detectors indicating

there is a high probability that a genuine intrusion or genuine attempted intrusion has

occurred within a specified timeframe
3.1.2
obscuration

the reduction in visibility as a result of the activation of a security fog system

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– 8 – 62642-8  IEC:2011
3.1.3
protected area

the designated space the security fog system is designed to restrict the visibility in when

operated
3.1.4
security fog system

device (or a series of separate independent components that make up a device) or system

within tamper resistance housing(s), that, when activated, produces a dense artificial fog,

from a consumable, to reduce visibility in the protected area
3.1.5
verification

the process whereby the security fog system will only operate once the Intruder Alarm System

(IAS) has operated and a detection device in the area of the security fog system has triggered

or an Hold-up Alarm System (HAS) has been operated
3.1.6
wet fog

aggregation of water droplets that may result from incomplete atomisation of the fogging

agent causing a direct spray or spatter from the fog ejection nozzle. This may also result from

poor atomisation of the fogging agent causing individual fog particle size to be too large

NOTE The large particles may fall down and settle on level surfaces as a greasy residue.

3.2 Abbreviations

For the purposes of this document, the abbreviations given in IEC 62642-1 and the following

apply.
EMC Electromagnetic compatibility
IK Degrees of protection provided by enclosures for electrical equipment against
external mechanical impacts
IP Ingress protection classification
LEA Law Enforcement Authority (police or governmental body that responds to
activations from security systems)
4 Environmental
4.1 Environmental classification

The security fog system shall meet, as a minimum, Environmental Class II (Indoor – General:

environmental influences normally experienced indoors when the temperature is not well

maintained) in accordance with IEC 62642-1.

EXAMPLE 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 with the average relative humidity of

approximately 75 % non-condensing.
4.2 Environmental tests

For all operations, the security fog system shall not activate, generate tamper, fault or other

signals or messages when subject to the specific range of environmental and EMC conditions

and shall continue to function normally.
---------------------- Page: 10 ----------------------
62642-8  IEC:2011 – 9 –

The following Class II level environmental tests from IEC 62599-1 shall be applicable when

testing the security fog system:
a) Clause 8: dry heat (operational);
b) Clause 10: cold test (operational);
c) Clause 14: damp heat, cyclic (operational);
d) Clause 17: sulphur dioxide (SO ) (endurance);
e) Clause 20: impact (operational);
f) Clause 22: vibration sinusoidal (operational);
g) Clause 23: vibration sinusoidal (endurance);
and for electromagnetic compatibility, immunity (operational), see IEC 62599-2.
5 Access levels

The access levels used in this standard shall be as stated in 8.3.1 of IEC 62642-1, except for

access level 2. Access level 2 “user” shall not be able to access the security fog system.

6 Regulation requirements
6.1 General

The security fog system shall operate to the following minimum relevant International

regulations.
6.2 Electrical safety

The electrical (safety) construction of the security fog system shall comply with IEC 60065.

6.3 Safety data sheets

The transport, storage and handling of consumables, shall comply with the requirements

stated on the safety data sheets.
6.4 EMC requirements

The security fog system shall meet the EMC conditions and the severity levels defined in

IEC 61000-6-3 and IEC 62599-2.
6.5 Warning signs

As a minimum security fog device/system warning signs shall be positioned on the normal

entry point(s) to the building (International safety signs, Directive 92/58/EEC [1] ). See Annex

6.6 Pressure vessels

Any security fog system that contains pressure vessels shall be transportation and its usage

shall meet the current industry safety requirements (see Directive 97/23/EC, Article 3 [2]).

___________
Figures in square brackets refer to the Bibliography.
---------------------- Page: 11 ----------------------
– 10 – 62642-8  IEC:2011
7 Device/system parameters
7.1 Performance
The security fog system shall meet the following minimum performance:

– Reduction of visibility to 1 m within 60 s in a minimum volume of 150 m and maintaining

obscuration for a period of 10 min in an un-vented room (performance tests shown in

Annex A).

The performance of the security fog system shall be detailed as shown in Annex A.

7.2 Battery backup requirement

The battery backup requirements of a security fog system cannot achieve compliance of

IEC 62642-1 due to the amount of energy used to power the security fog system.

As a general requirement, a security fog system shall be capable of a single full system

operation for a period within one hour after mains fail.

A single full system operation shall be defined by the manufacturer in the security fog system

specification.
7.3 IP/IK rating

All component parts shall be housed in an enclosure meeting the following requirements:

a) IP rating of IP20;
b) IK rating of IK08.
7.4 Wire free interconnections

If wire free interconnections are used then the requirements shall meet IEC 62642-5-3.

8 General requirements
8.1 Tamper

All material parts and components of the security fog system shall be inside (a) secure,

tamper-resistant outer case(s). The opening by normal means of access to the outer case(s)

shall create an (a tamper message or signal) alarm condition.

The security fog system shall not eject fog on an individual tamper signal or message if the

I&HAS is in the unset condition.
8.2 Fog neutralisation

A security fog system shall not be damaged or neutralised by the phenomenon (fog) it is

supposed to produce.
8.3 Discharge nozzle
8.3.1 Nozzle protection

The discharge nozzle shall be protected to avoid any risk of injury with the security fog

system in standby mode.
---------------------- Page: 12 ----------------------
62642-8  IEC:2011 – 11 –
8.3.2 Nozzle blocked
If the discharge nozzle becomes blocked, then it shall not cause a hazard.
8.4 Fog eject limiter

The security fog system shall incorporate a method for limiting the quantity of ejected fog in

order to reduce the possibility of damaging residue.
8.5 Heating unit

The temperature of the heating unit shall be fully monitored and controlled to ensure that it

remains within manufacturer's parameters.
8.6 Overheating

The heater unit shall be fitted with a thermal cut off device to prevent overheating outside the

manufacturers' parameters. When the thermal cut off operates it shall require a reset by an

authorised technician.
8.7 Accidental triggering

The security fog system shall not be able to be triggered by an unset I&HAS, but the security

fog system can be triggered by a set HAS if so configured.
8.8 Isolation of the security fog system

There shall be a means of isolating the security fog system from the CIE to avoid a

maintenance technician triggering the security fog system during routine maintenance.

8.9 Fixings

Fixings/mountings shall be appropriate to prevent unauthorised removal or tamper.

9 Operational requirements
9.1 Communication
The security fog system shall be capable of communicating with the host I&HAS.
9.1.1 Minimum information to be communicated
a) INPUTS into the s
...

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