IEC 61587-6:2017

IEC 61587-6 ®
Edition 1.0 2017-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Mechanical structures for electrical and electronic equipment –
Tests for IEC 60917 and IEC 60297 series –
Part 6: Security aspects for indoor cabinets

Structures mécaniques pour équipements électriques et électroniques –
Essais pour les séries IEC 60917 et IEC 60297 –
Partie 6: Aspects liés à la sécurité des baies intérieures

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IEC 61587-6 ®
Edition 1.0 2017-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Mechanical structures for electrical and electronic equipment –

Tests for IEC 60917 and IEC 60297 series –

Part 6: Security aspects for indoor cabinets

Structures mécaniques pour équipements électriques et électroniques –

Essais pour les séries IEC 60917 et IEC 60297 –

Partie 6: Aspects liés à la sécurité des baies intérieures

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.240 ISBN 978-2-8322-7529-0

– 2 – IEC 61587-6:2017 © IEC 2017
CONTENTS
CONTENTS . 2
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Security aspects for indoor cabinets . 8
4.1 General . 8
4.2 Access security level of the cabinet . 9
5 Security performance levels of cabinets . 9
5.1 General . 9
5.2 Security performance levels of cabinet mechanical components . 10
5.2.1 Handle and associated mechanical lock . 10
5.2.2 Key . 12
5.2.3 Cabinet floor anchoring . 13
Annex A (normative) Mechanical performance and test methods for handles . 14
A.1 Mechanical strengths of levers of handles . 14
A.1.1 General . 14
A.1.2 Static loading test, push/pull performance . 14
A.1.3 Static loading test, turn performance . 15
Bibliography . 16

Figure 1 – Typical mechanical components for security provision of the cabinet . 8
Figure 2 – Concept of access protection within buildings or premises . 9
Figure 3 – Static loading test for handle and associated mechanical lock . 11
Figure A.1 – Lever handles push/pull performance . 14
Figure A.2 – Lever handles turn performance. 15

Table 1 – Access security levels of indoor cabinet installation sites . 9
Table 2 – Security performance levels of cabinets . 10
Table 3 – Security performance levels of handle and associated mechanical lock . 10
Table 4 – Test procedures for operation of handle and mechanical lock . 12
Table 5 – Security performance levels of key . 12
Table 6 – Security performance level of cabinet floor anchoring . 13

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MECHANICAL STRUCTURES FOR ELECTRICAL AND ELECTRONIC
EQUIPMENT – TESTS FOR IEC 60917 AND IEC 60297 SERIES –

Part 6: Security aspects for indoor cabinets

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61587-6 has been prepared by subcommittee 48D:Mechanical
structures for electrical and electronic equipment, of IEC technical committee 48: Electrical
connectors and mechanical structures for electrical and electronic equipment.
This bilingual version (2019-10) corresponds to the monolingual English version, published in
2017-05.
The text of this International Standard is based on the following documents:
FDIS Report on voting
48D/634/FDIS 48D/641/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.

– 4 – IEC 61587-6:2017 © IEC 2017
The French version of this standard has not been voted upon.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 61587 series, published under the general title Mechanical
structures for electrical and electronic equipment – Tests for IEC 60917 and IEC 60297 series,
can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
INTRODUCTION
The security of electrical and electronic equipment or systems, which nowadays is being
applied in many electronic equipment or systems in the fields of ICT (information and
communication technology) and of industrial/infrastructure control systems, is becoming a
critical issue.
In general, security is achieved by restrictions and protections against improper or
unauthorized accesses from both hardware and software sides of the systems.
Considering the security of the hardware of electronic equipment or systems, which are built
up in the mechanical structures such as cabinets based on IEC 60297 series and IEC 60917
series, it depends on conditions of their installation sites, on the security level of system
hardware which provides access protection at the installation sites, and on the robustness of
the mechanical structures and of their mechanical locks both at the access gates/doors of the
installation sites and of the mechanical structures.
Therefore, a classification of the installation conditions and of the levels of security measures
for hardware is very important for design and practices of various electronic equipment or
systems, which are used in the field of ICT, industrial control, transportation and others.
From this point of view, this document intends to clarify the relationship between the
installation conditions and the security requirements for indoor cabinets, and to provide the
required performances and test methods on mechanical components related with security
provisions for indoor cabinets which are in accordance with IEC 60297 series and IEC 60917
series.
Vandalism protection aspect is applied by user-specific requirements in general. Therefore,
this document has no definition of vandalism.

– 6 – IEC 61587-6:2017 © IEC 2017
MECHANICAL STRUCTURES FOR ELECTRICAL AND ELECTRONIC
EQUIPMENT – TESTS FOR IEC 60917 AND IEC 60297 SERIES –

Part 6: Security aspects for indoor cabinets

1 Scope
This part of IEC 61587 specifies security aspects and security performance levels of indoor
cabinets in accordance with IEC 60917 and IEC 60297.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements 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 60297 (all parts), Mechanical structures for electronic equipment – Dimensions of
mechanical structures of the 482,6 mm (19 in) series
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 60917 (all parts), Modular order for the development of mechanical structures for
electronic equipment practices
IEC 60917-1, Modular order for the development of mechanical structures for electronic
equipment practices – Part 1: Generic standard
IEC 61587-1, Mechanical structures for electronic equipment – Tests for IEC 60917 and
IEC 60297 series – Part 1: Environmental requirements, test set-up and safety aspects for
cabinets, racks, subracks and chassis under indoor condition use and transportation
IEC 61587-2, Mechanical structures for electronic equipment – Tests for IEC 60917 and
60297 series – Part 2: Seismic tests for cabinets and racks
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60917-1 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
handle
mechanical component to open or close the door of a cabinet, equipped on the door of a
cabinet
3.2
key
device to allow only authorized access to a cabinet, assembled into the handle of the cabinet
or on the door of the cabinet configured with a mechanical lock
3.3
mechanical lock
mechanical component assembled in the door of a cabinet, deemed to provide closure of the
door of the cabinet for security
3.4
access protection
protection against unauthorized access to a cabinet mainly dependent on the access security
level within the location and functional requirements where the cabinet is installed
3.5
security performance
required performance of the mechanical components of a cabinet to achieve the intended
access security level
SEE Figure 1.
– 8 – IEC 61587-6:2017 © IEC 2017
Cabinet Cabinet
Hinge
Hinge
Door
Door
Handle with key
Latch plate Handle with key
(mechanical lock)
Extended mechanical lock
(multi-points lock)
Latch plate
Latch plate
(mechanical lock)
(mechanical lock)
Latch plate
(mechanical lock)
Handle, flat lever type Handle, lever type, Handle, T-bar type, Key lock, without
or pull type, with key with key, without with latch plate and handle
and latch plate latch plate simplified key

IEC
Figure 1 – Typical mechanical components for
security provision of the cabinet
4 Security aspects for indoor cabinets
4.1 General
In general, security for cabinets for electronic equipment should be designed on both points of
view from hardware and software. Considering the security on hardware of the cabinets,
security aspects of the cabinets depends on the following factors:
a) access security level of the cabinet installation site(access security within the building);
b) security performance of the cabinet.
The access security within the building, as part of the so-called physical security, is primarily
aimed to be effective against unauthorized forced entry. In this regard, many international or
regional regulations and specifications for building doors, gates, building door handles and
key-locking systems and other building physical security facilities are defined.

The security performance of the cabinet is designed by the choice of specific handle, key,
mechanical lock and other components, which are different from the hardware for buildings
and are mostly dedicated to cabinets for electrical and electronic systems.
Designers and users should consider those points properly to establish security aspects for
their intended use indoor cabinet.
4.2 Access security level of the cabinet
In case of the indoor cabinet, access security level depends on restriction-severities to reach
the cabinet installation sites. Figure 2 and Table 1 show typical access security levels in
buildings or premises.
Security aspect for the intended use cabinet should be specified according to the access
security levels shown in Table 2.
AS0
AS1
AS2
AS3
Access
Specific
office or lab
office or lab
Reception room or lobby
Public area within building or premise
IEC
Figure 2 – Concept of access protection
within buildings or premises
Table 1 – Access security levels of indoor cabinet installation sites
Access security level Access protection Example area
AS0 No restriction to enter the site Public areas in building or premises
Receptions rooms or lobbies areas of
AS1 Restricted area to enter
offices or laboratories within buildings
AS2 Severe restricted area to enter Offices or laboratories
Very severe restriction to enter the Specific office or laboratories, or control
AS3
specific area. rooms
5 Security performance levels of cabinets
5.1 General
Table 2 shows security performance levels of cabinets and related security performance
levels of mechanical components.

– 10 – IEC 61587-6:2017 © IEC 2017
Application of security performance levels of cabinets should be defined by required security
measures of the cabinet-mounted electronic system and the access security levels of the
installation sites. Nevertheless, whatever the access security level of the installation site, the
security level of the cabinet may be chosen independently by requirements from the intended
electronic system. Designers and users should study and clarify actual conditions of the
installation site and the required security measures of the intended electronic system, and
apply the optimum security performance levels for cabinets.
Table 2 – Security performance levels of cabinets
Security performance levels of mechanical components
Security performance
Handle and associated Key
Floor anchoring
levels of cabinets
mechanical lock
(See Table 5)
(See Table 6)
(See Table 3)
CS0 SH1 SK0/SK1
CS1 SK2
SA0/SA1/SA2
CS2 SH2 SK3
CS3 SK4
Other parts of the mechanical components related with the cabinet security performance, e.g. hinges, doors,
etc., should meet the requirements in accordance with the security performance level of handle and
associated mechanical lock in Table 3.

5.2 Security performance levels of cabinet mechanical components
5.2.1 Handle and associated mechanical lock
5.2.1.1 General
Table 3 shows security performance levels and required mechanical performances of handle
and mechanical lock.
Table 3 – Security performance levels of handle and
associated mechanical lock
Strength of Environmental performances level
handle and
Operation
Security
associated
of handle
performance
mechanical
and
level of handle
lock
Climate Industrial
mechanical
and
Impact IP
conditions atmosphere
lock
Static
associated
(IEC 61587-1) (IEC 60529)
loading
mechanical
Open/close (IEC 61587-1) (IEC 61587-1)
test at door
lock
cycles
closed
position
SH1 200 N C1 A1 K1 IP20
> 10 000
IP20,IP30,
SH2 400 N C1/C2/C3 A1/A2/A3 K2/K3
IP42,IP54
5.2.1.2 Tests for strength of handle and associated mechanical lock
Figure 3 shows test method for strength of the handle and the associated mechanical lock.

Cabinet
Cabinet-door
Handle
Pull by 200 N or 400 N,
at the pivot of the handle lever,
at the door closed position with
mechanical locked condition
View A
The cabinet under the test shall be fixed on the floor
Handle
View A receptacle
Inside of
Inside of the
the cabinet-
Inside of
cabinet-door
door the cabinet-
door
T-bar handle,
Handle lever
locked condition at
Handle lever the receptacle
a) Handle, flat lever type b) Handle, lever type c) Handle, T-bar type
IEC
Figure 3 – Static loading test for handle and
associated mechanical lock
Criteria: After 3 times of the static loading test (pull 200 N or 400 N), there is no permanent
deformation on all of the components of handle,associated mechanical lock and door.
Figure 3 shows the tests for typical handles. (See the test methods for strength on each type
handle as single component in Clause A.1.) In cases of applying different type handles,
designers and users should modify the above test method according to the functions of the
selected handles.
5.2.1.3 Tests for operation of handle and mechanical lock
Table 4 indicates procedures for the tests operation of handle and mechanical lock.

– 12 – IEC 61587-6:2017 © IEC 2017
Table 4 – Test procedures for operation of handle
and mechanical lock
Open/close cycles test procedures
Handle, lever type, with key
C Handle, flat lever type, with key
Handle, T-bar type, with key
One test cycle is as operations from 1) to 6) below.
On test cycle is as operations from 1) to 5) below.
It shall be repeated 10 000 times.
It shall be repeated 10 000 times.
1) Start at door closed and key locked condition
1) Start at door closed and key locked condition
2) Unlock the key
2) Unlock the key
3) Pull-up the handle lever
3) Turn the lever to the end-position for open the
4) Turn the lever to the end-position for open the
door
door
4) Return the lever into the initial position
5) Return and push-down the lever into the initial
position
5) Lock the key
6) Lock the key
Criteria: After the test, there is no permanent deformation on all of the components of handle,
associated mechanical lock and key.
Table 4 indicates the test procedures for typical handles. Difference of the type of the handle
may take different procedure for door open or close operation. In such a case, the open/close
cycles test procedures should be modified according to the specific door open or close
operation.
5.2.2 Key
Table 5 shows security performance levels for keys.
The “key-difference numbers” shown in Table 5 are key security numbers or key security
values typically used for cabinet doors according to IEC 60917 and IEC 60297.
Table 5 – Security performance levels of key
Security Key function Key- Application
performance level difference
Lever handle with Cabinet door
of key number
key/mechanical lock, or function
key/mechanical lock
only
No security,
SK0 No key --- No lock or no key
design only
Uncontrolled key Basic commercial key
SK1 --- Low security
distribution mechanism
Controlled key Industrial key
SK2 100 Limited security
distribution mechanism
Security key
Controlled security
SK3 1 000 Medium security
key distribution
>1 000
Controlled high
Precision security key
SK4 security key 10 000 High security
>10 000
distribution
According to users’ requests and intended applications, different types of keys, such as dial key, registered
number key and other precision key systems for the door entry control, may be applied.

5.2.3 Cabinet floor anchoring
To secure the functionality of a cabinet, cabinet floor anchoring is considered a security
aspect as cabinet mobility may have to be restricted or even made impossible to protect from
external environmental occurrences or unwanted human interference.
Table 6 – Security performance level
of cabinet floor anchoring
Security performance level Test method
of cabinet floor anchoring
SA0 No test
SA1 Tested in accordance with IEC 61587-1
SA2 Tested in accordance with IEC 61587-2

– 14 – IEC 61587-6:2017 © IEC 2017
Annex A
(normative)
Mechanical performance and test methods for handles
A.1 Mechanical strengths of levers of handles
A.1.1 General
The following mechanical strengths of levers of handles are common requirements, and they
shall be applied for maintaining security performance levels of mechanical components.
A.1.2 Static loading test, push/pull performance
Lever handles shall perform to the push/pull forces defined in Figure A.1.
200 N
at the top
of the lever
Handle lever
200 N
=
at the centre
of the lever
90°
=
Fixed
Handle lever
Fixed
apparatus
200 N
apparatus
at the centre
of the lever
IEC IEC
a) Handle, flat lever type b) Handle, lever type
200 N
at the top
of the bar
Handle receptacle
Total 200 N
Total 200 N
at the
respective
centre
of the half bars
Fixed
apparatus
T-bar handle,
locked condition at
the receptacle
IEC
...