IEC 61969-1:2011

IEC 61969-1 ®
Edition 2.0 2011-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Mechanical structures for electronic equipment – Outdoor enclosures –
Part 1: Design guidelines
Structures mécaniques pour équipement électronique – Enveloppes de plein
air –
Partie 1: Lignes directrices pour la conception

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IEC 61969-1 ®
Edition 2.0 2011-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Mechanical structures for electronic equipment – Outdoor enclosures –
Part 1: Design guidelines
Structures mécaniques pour équipement électronique – Enveloppes de plein
air –
Partie 1: Lignes directrices pour la conception

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX L
ICS 31.240 ISBN 978-2-88912-791-7

– 2 – 61969-1  IEC:2011
CONTENTS
FOREWORD . 3

INTRODUCTION . 5

1 Scope . 6

2 Normative references . 7

3 Terms and definitions . 8

4 Dimensions . 9

5 Environmental requirements and tests, safety aspects. 9

5.1 Classification of environmental conditions . 9
5.2 Static load . 10
5.3 Dynamic stress . 10
5.4 Seismic performance . 10
6 Electromagnetic shielding . 10
7 Thermal management and acoustic noise suppression . 11

Figure 1 – Typical outdoor enclosure . 6
Figure 2 – Locations of outdoor enclosures . 8

Table 1 – Environmental conditions . 9
Table 2 – Safety aspects . 10

61969-1  IEC:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENT –

OUTDOOR ENCLOSURES –
Part 1: Design guidelines
FOREWORD
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International Standard IEC 61969-1 has been prepared by subcommittee 48D: Mechanical
structures for electronic equipment, of IEC technical committee 48: Electromechanical
components and mechanical structures for electronic equipment.
This second edition cancels and replaces the first edition issued in 1999. It constitutes a
technical revision.
The main technical changes with regard to the previous edition are as follows:
a) Addition of design guidance for thermal management and noise suppression as
thermal/noise management is often considered a basic requirement of an empty outdoor
enclosure. If thermal management components are included in the product, the
environmental impact may become the responsibility of the empty outdoor enclosure
manufacturer. Therefore the acoustic limitations shall be observed.

– 4 – 61969-1  IEC:2011
Typically, the user of the empty outdoor enclosure follows the local regulatory acoustic

requirements (sound power and/or sound pressure). Acoustic measurements may be

performed on the empty outdoor enclosure fitted with thermal management components

only or, if agreed between manufacturer and user at the final stage of the application

specific installation.
b) Historically, Ed 1 intended to create a market for standardized empty outdoor enclosures

offered by multiple vendors. Detail standards such as IEC 61969-2-1 Ed 1 and IEC 61969-

2-2 Ed 1 were issued to guide users to preferred and available solutions.

However, development showed that this intend (created with user’s participation) was not
satisfying the user’s expectations.

Consequently, the detail standards IEC 61969-2-1 Ed 1 and IEC 61969-2-2 Ed 1 will be
withdrawn when IEC 61969-2 Ed 2 is issued. The IEC 61969-2 Ed 2 co-ordination dimensions
are based on IEC 60917-1. The definition outdoor cases and outdoor cabinets are merged
into the definition outdoor enclosures.
The text of this standard is based on the following documents:
FDIS Report on voting
48D/488/FDIS 48D/498/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.
A list of all parts of IEC 61969, under the general title, Mechanical structures for electronic
equipment – Outdoor enclosures, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability 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.
61969-1  IEC:2011 – 5 –
INTRODUCTION
This standard is intended as a generic guide for the development of further standards. The

products covered are empty enclosures to be equipped with application-specific solutions to

be used at non-weather protected locations above ground. This standard is followed by a co-

ordination dimension standard (IEC 61969-2 Ed 2) and an environmental requirements and

tests, safety aspect standard (IEC 61969-3 Ed 2).

– 6 – 61969-1  IEC:2011
MECHANICAL STRUCTURES FOR ELECTRONIC EQUIPMENT –

OUTDOOR ENCLOSURES –
Part 1: Design guidelines
1 Scope
This part of IEC 61969 contains design
...