SIST IEC/TR2 61394:1999

IEC 60297-3-110
®

Edition 1.0 2018-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside


Mechanical structures for electrical and electronic equipment – Dimensions of
mechanical structures of the 482,6 mm (19 in) series –
Part 3-110: Residential racks and cabinets for smart houses

Structures mécaniques pour équipements électriques et électroniques –
Dimensions des structures mécaniques de la série 482,6 mm (19 pouces) –
Partie 3-110: Bâtis et baies domestiques pour maisons intelligentes
IEC 60297-3-110:2018-08(en-fr)

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IEC 60297-3-110

®


Edition 1.0 2018-08




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Mechanical structures for electrical and electronic equipment – Dimensions of

mechanical structures of the 482,6 mm (19 in) series –

Part 3-110: Residential racks and cabinets for smart houses




Structures mécaniques pour équipements électriques et électroniques –

Dimensions des structures mécaniques de la série 482,6 mm (19 pouces) –


Partie 3-110: Bâtis et baies domestiques pour maisons intelligentes













INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 31.240 ISBN 978-2-8322-5905-4




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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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– 2 – IEC 60297-3-110:2018 © IEC 2018
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Arrangement overview . 7
5 Dimensions. 8
5.1 Dimensions for residential racks . 8
5.2 Dimensions for residential cabinets . 10
6 Equipment categories and the relevant mounting locations . 11
7 Installation and fixing position . 12
7.1 Installation . 12
7.1.1 Installation of residential racks . 12
7.1.2 Installation of residential cabinets . 13
7.2 Fixing positions . 13
8 Environmental aspects . 15
8.1 General . 15
8.2 Environmental protection performance level . 15
9 Safety aspects . 15
Annex A (informative) Application examples of the residential rack and cabinet for
smart houses under local construction regulations . 16
A.1 Applications of residential racks and cabinets for smart houses under local
construction regulations or guides . 16
A.2 An application example of the residential rack under a local construction
regulation . 16
A.3 An application example of the residential cabinet under a local home-
network construction guide . 17

Figure 1 – Example of a residential rack arrangement for a smart house . 7
Figure 2 – Example of a residential cabinet arrangement for a smart house . 8
Figure 3 – Dimensions of residential racks . 9
Figure 4 – Dimensions of residential cabinets . 10
Figure 5 – Typical equipment categories and their mounting locations of a 2 000 mm
high (40U) residential rack or cabinet . 12
Figure 6 – Fixing positions of residential racks or cabinets. 14
Figure A.1 – An application example of the residential rack under a local construction
regulation . 17
Figure A.2 – An application example of the residential cabinet under a local home-
network construction guide . 18

Table 1 – Dimensions of residential racks . 9
Table 2 –Dimensions of residential cabinets . 11
Table 3 – Environmental protection performance level . 15

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IEC 60297-3-110:2018 © IEC 2018 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

MECHANICAL STRUCTURES FOR
ELECTRICAL AND ELECTRONIC EQUIPMENT –
DIMENSIONS OF MECHANICAL STRUCTURES
OF THE 482,6 MM (19 IN) SERIES –

Part 3-110: Residential racks and cabinets for smart houses

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
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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.
International Standard IEC 60297-3-110 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.
The text of this International Standard is based on the following documents:
FDIS Report on voting
48D/668/FDIS 48D/665/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.

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– 4 – IEC 60297-3-110:2018 © IEC 2018
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 60297-3 series, published under the general title Mechanical
structures for electrical and electronic equipment – Dimensions of mechanical structures of
the 482,6 mm (19 in) series, can be found on the IEC website.
Future standards in this series will carry the new general title as cited above. Titles of existing
standards in this series will be updated at the time of the next edition.
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.

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IEC 60297-3-110:2018 © IEC 2018 – 5 –
INTRODUCTION
As a result of increasing worldwide environmental awareness, there are significant
requirements for effective management of electricity supply between consumers, distributors
and generators. The smart grid is considered one of the most important key technologies to
realize an effective electricity supply channel. In the grid, smart meters connected with
IP/cloud networking will be used to provide demand-response communication between
suppliers and consumers.
In the residential sector, a movement similar to that for the management of electricity is
ongoing also for other utility lines, and for such demands, many efforts for the development of
specifications for smart houses have been proceeding, in the framework of the current
1
development of smart cities. We can see such activities e.g. in SHR/HEMS program . In the
near future, smart cities will require the deployment of smart houses, that by suitable adoption
of platforms and technologies (e.g. cloud-based services, Internet of Things, etc.) will provide
various services for residents, which are not only utility management, but also e.g. health care,
security, entertainment and other services. The electronic equipment for the providing of
public utility management and of these services apply broadband IP/cloud networking for their
interactive data communication. In future, residential buildings will be equipped with such
gateways, servers and home networks. This equipment has to be secured to be operated in a
trouble-free environment, the same as telecommunication and internet access, to protect it
from unsuitable environmental conditions in the residences.
This document defines 486,2 mm (19 in) residential racks and cabinets based on
2
IEC 60297-3-100, suitable for installing equipment for smart houses in proper conditions .


____________
1
SHR/HEMS (Smart House Roadmap/Home Energy Management System): Projects for development of
international standards for smart houses, based on activities at ISO/IEC JTC 1/SC 25/WG 1: “Interconnection of
information technology equipment”.
2
In actual applications, based on the volume of the equipment for the smart house and the applicable space in
the residential building, rack or cabinet with smaller dimensions may be applied as subset of this standard.

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– 6 – IEC 60297-3-110:2018 © IEC 2018
MECHANICAL STRUCTURES FOR
ELECTRICAL AND ELECTRONIC EQUIPMENT –
DIMENSIONS OF MECHANICAL STRUCTURES
OF THE 482,6 MM (19 IN) SERIES –

Part 3-110: Residential racks and cabinets for smart houses



1 Scope
This part of IEC 60297 specifies dimensions, specification for installation, environmental
aspects and safety aspect of residential racks and cabinets based on IEC 60297 series, for
smart houses, likely to be part of smart cities.
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 60297-3-100, Mechanical structures for electronic equipment – Dimensions of mechanical
structures of the 482,6 mm (19 in) series – Part 3-100: Basic dimensions of front panels,
subracks, chassis, racks and cabinets
IEC 60917-1, Modular order for the development of mechanical structures for electronic
equipment practices – Part 1: Generic standard
IEC 60917-2-5, Modular order for the development of mechanical structures for electronic
equipment practices – Part 2-5: Sectional specification – Interface co-ordination dimensions
for the 25 mm equipment practice – Cabinet interface dimensions for miscellaneous
equipment
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
IEC 61587-3, Mechanical structures for electronic equipment – Tests for IEC 60917 and
IEC 60297 – Part 3: Electromagnetic shielding performance tests for cabinets and subracks
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

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IEC 60297-3-110:2018 © IEC 2018 – 7 –
3.1
vertical members
parts of a rack or a cabinet providing mounting positions for front panels, chassis and
subracks
3.2
residential rack or cabinet
racks or cabinets installed in residential buildings or apartment units, used to secure and
protect equipment dedicated to managing smart houses
3.3
equipment category and relevant mounting location
technical information for a residential rack or cabinet providing the description of the category
(function) and the relevant mounting space (measured in number of units U) in a rack or a
cabinet, for each specific equipment dedicated to managing smart houses
4 Arrangement overview
Residential rack or cabinet for a smart house is installed in a room of a residential building.
Figure 1 and Figure 2 introduce examples of arrangement for residential rack and cabinet
installations.

Figure 1 – Example of a residential rack arrangement for a smart house

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– 8 – IEC 60297-3-110:2018 © IEC 2018

Figure 2 – Example of a residential cabinet arrangement for a smart house
5 Dimensions
5.1 Dimensions for residential racks
Figure 3 and Table 1 show dimensions of residential racks.

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IEC 60297-3-110:2018 © IEC 2018 – 9 –
Dimensions in millimetres

Figure 3 – Dimensions of residential racks
Table 1 – Dimensions of residential racks
Height Aperture height Width Depth
H (S>n × U) W D
R R
n × U
mm mm mm mm
1 200 22 × U = 977,90
500 250
1 800 36 x U = 1 600,20
550 300
2 000 40 x U = 1 778,00
600 400
2 200 45 x U = 2 000,25
NOTE 1U = 44,45 mm. See IEC 60297-3-100.

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– 10 – IEC 60297-3-110:2018 © IEC 2018
5.2 Dimensions for residential cabinets
Figure 4 and Table 2 show dimensions of residential cabinets.
Dimensions in millimetres

Figure 4 – Dimensions of residential cabinets

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IEC 60297-3-110:2018 © IEC 2018 – 11 –
Table 2 –Dimensions of residential cabinets
Height Aperture height Width Depth
H (S>n × U) W D
C C
n × U
mm mm mm mm
1 200 22 × U = 977,90
250
1 800 36 x U = 1 600,20
300
550
2 000 40 x U = 1 778,00 400
600
450
2 200 45 x U = 2 000,25
500
2 400 49 x U = 2 178,05
NOTE 1U = 44,45 mm. See IEC 60297-3-100.

6 Equipment categories and the relevant mounting locations
Figure 5 shows typical equipment categories and their mounting locations in a residential rack
or cabinet. One protective partition may be equipped in 1 U space between tier 1 and tier 2.
Respective mounting spaces from tier 1 to tier 3 can be adjusted within Figure 5 indicated
mounting spaces according to the rack or cabinet height and volume of equipment to be
mounted.
Rack or cabinet manufacturers shall provide a document specifying the allowable location of
equipment categories in their product.

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– 12 – IEC 60297-3-110:2018 © IEC 2018
Dimensions in millimetres

Figure 5 – Typical equipment categories and their mounting locations
of a 2 000 mm high (40U) residential rack or cabinet
7 Installation and fixing position
7.1 Installation
7.1.1 Installation of residential racks
Residential racks are installed in equipped closets of residential buildings. These racks are
fixed on the closet panels or building walls at the rack frames, as well as fixed on the closet or
building floor or at the rack bottoms, and/or on the ceiling at the rack tops attaching optional
fixing frame. In the respective cases, the fixing position shall be applied.

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IEC 60297-3-110:2018 © IEC 2018 – 13 –
7.1.2 Installation of residential cabinets
Residential cabinets are positioned along a wall or at the corners of rooms in residential
buildings. These cabinets are fixed on the building walls at the cabinet frames or back panels,
and/or side frames or panels, as well as on the floors or at the cabinet bottoms including
optional plinths/bases, and/or on the ceilings. At the cabinet tops, air-cooling ducts and/or
cabling spaces may be prepared. In the respective cases, the fixing position may be applied.
7.2 Fixing positions
The fixing positions of residential racks or cabinets are defined based on IEC 60917-2-5
mounting points. Figure 6 shows the fixing positions.

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– 14 – IEC 60297-3-110:2018 © IEC 2018
Dimensions in millimetres

At each of the four corners of the cabinet rear, sides, top and bottom, one fixing hole from the recommended fixing
positions shall be chosen.
At each of the two locations in the center of the cabinet rear and side, one fixing hole from the optional fixing
positions may be chosen.
Fixing holes shall be sized to accommodate M10 or larger bolts.
Figure 6 – Fixing positions of residential racks or cabinets

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IEC 60297-3-110:2018 © IEC 2018 – 15 –
8 Environmental aspects
8.1 General
Residential racks or cabinets shall be designed, manufactured and supplied to maintain safe
and reliable operations of their equipment in the specific installation condition in residential
buildings and, at the same time, they should be environmental sustainable products as well as
home appliances and home electronics.
8.2 Environmental protection performance level
The environmental test requirements for residential racks or cabinets are defined in existing
standards. Table 3 shows minimum required performance level for the residential racks or
cabinets.
Table 3 – Environmental protection performance level
Minimum required Standard Note
performance level
Climatic level C1 IEC 61587-1
Industrial atmosphere A1 IEC 61587-1
Static load test SL4 IEC 61587-1
Dynamic load test (DL4) (IEC 61587-1) The test levels may be
downgraded or the test
Impact load test (K1) (IEC 61587-1)
method may be modified,
according to the actual
Seismic test (“Single-axis” or “Tri- (IEC 61587-2)
installation and mounting
axial” acceleration
condition of the cabinet. In
test waveform)
such cases, the levels and the
methods should be defined
Electromagnetic shielding (No test required or IEC 61587-3
according to discussion
Performance level 1)
between cabinet or rack
manufacturers, house builders,
network system designers and
users.

9 Safety aspects
Safety aspects which cover both human hazard and product safety shall be fully in
compliance with IEC 61587-1.

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– 16 – IEC 60297-3-110:2018 © IEC 2018
Annex A
(informative)

Application examples of the residential rack and cabinet
for smart houses under local construction regulations
A.1 Applications of residential racks and cabinets for smart houses under
local construction regulations or guides
In general, construction of residential buildings shall be met with local construction
regulations or local construction guide primarily, because design of the houses comes from
regional cultures and environments. Therefore, considering such conditions, residential racks
or cabinets shall be installed.
A.2 An application example of the residential rack under a local construction
regulation
Figure A.1 shows an application example of the residential rack under a local construction
regulation, in which the integrated entry-layout of the home utility lines and equipment space
of metering devices for such home utility lines are defined in the building.

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...