IEC 61969-1:2011

Mechanical structures for electronic equipment - Outdoor enclosures - Part 1: Design guidelines

IEC 61969-1:2011 contains design guidelines for outdoor enclosures and is applicable over a wide field of mechanical, electromechanical and electronic equipment and its installation where a modular design is used. The objective of this standard is to provide an overview of specifications for enclosures focused on requirements for outdoor applications for stationary use at non-weather protected locations. These enclosures are considered to contain any equipment and provide protection for the outdoor installed facilities against unwanted environmental impacts. The installed equipment may be, but is not limited to, subracks according to IEC 60917-2-2 or IEC 60297-3-101. 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:
- 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. 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.
- 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 Consequently, the detail standards IEC 61969-2-1 Ed 1 and IEC 61969-2-2 Ed 1 will be withdrawn when IEC 61969-2 Ed 2 is issued.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.

Structures mécaniques pour équipment électronique - Enveloppes de plein air - Partie 1: Lignes directrices pour la conception

La CEI 61969-1:2011 fournit des lignes directrices pour la conception des enveloppes de plein air et s'applique à un vaste domaine d'équipement mécanique, électromécanique et électronique et à leur installation en configuration modulaire. Le but de cette norme est de fournir un ensemble de spécifications pour les enveloppes, spécialement pour ce qui concerne les contraintes propres aux applications de plein air pour une utilisation à poste fixe dans les lieux exposés aux intempéries. Ces enveloppes sont supposées contenir des équipements et protéger les installations situées en plein air contre les effets environnementaux indésirables. L'équipement installé peut, mais sans que ce soit limitatif, correspondre dimensionnellement aux bacs selon la CEI 60917-2-2 ou la CEI 60297-3-101. Cette deuxième édition annule et remplace la première édition, parue en 1999, dont elle constitue une révision technique. Les principaux changements techniques par rapport à l'édition précédente sont les suivants:
- Ajout de lignes directrices pour la conception de la gestion thermique et la suppression du bruit, puisque la gestion thermique/bruit sont souvent considérés comme correspondant à une exigence fondamentale d'une enveloppe de plein air vide. Si les composantes de la gestion thermique sont incluses dans la définition, l'impact environnemental peut devenir de la responsabilité du fournisseur de l'enveloppe de plein air vide. Par conséquent, les limites acoustiques doivent être observées. Généralement, l'utilisateur de l'enveloppe de plein air vide suit les exigences acoustiques réglementaires locales (puissance sonore et/ou pression sonore). Les mesures acoustiques peuvent être réalisées sur l'enveloppe de plein air vide équipée des composantes de gestion thermique uniquement ou, si cela est convenu entre le fournisseur et l'utilisateur à l'étape finale de l'installation spécifique à l'application.
- À l'origine, l'Éd 1 était prévue pour créer un marché pour les enveloppes de plein air vide que proposaient de nombreux vendeurs. Des normes particulières telles que la CEI 61969-2-1 Éd 1 et la CEI 61969-2-2 Éd 1 devaient orienter les utilisateurs vers des solutions préférentielles et disponibles sur le marché. Toutefois, le développement a montré que cet objectif (élaboré avec la participation de l'utilisateur) n'a pas répondu aux attentes de l'utilisateur. En conséquence, les normes particulières CEI 61969-2-1 Éd 1 et CEI 61969-2-2 Éd 1 seront supprimées au moment où sera publiée la CEI 61969-2 Éd 2. Les dimensions de coordination faisant l'objet de la CEI 61969-2 Éd 2 sont fondées sur la CEI 60917-1. La définition des coffrets de plein air et celle des armoires de plein air ont fusionné pour donner lieu à la définition des enveloppes de plein air.

General Information

• Status: Published
• Publication Date: 16-Nov-2011
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 31.240 - Mechanical structures for electronic equipment
• Technical Committee: SC 48D - Mechanical structures for electrical and electronic equipment
• Current Stage: DELPUB - Deleted Publication
• Start Date: 31-Aug-2017
• Completion Date: 12-May-2020

Relations

• Revised: IEC 61969-1:2020 - Mechanical structures for electrical and electronic equipment - Outdoor enclosures - Part 1: Design guidelines
• Effective Date: 05-Sep-2023
• Revises: IEC 61969-1:1999 - Mechanical structures for electronic equipment - Outdoor enclosures - Part 1: Design guidelines
• Effective Date: 05-Sep-2023

Standards Content (Sample)

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
...