IEC 62208:2011

Empty enclosures for low-voltage switchgear and controlgear assemblies - General requirements

IEC 62208:2011 applies to empty enclosures, prior to the incorporation of switchgear and controlgear components by the user, as supplied by the enclosure manufacturer. This standard specifies general definitions, classifications, characteristics and test requirements of enclosures to be used as part of switchgear and controlgear assemblies (e.g. in accordance with the IEC 61439 series), the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c., and suitable for general use for either indoor or outdoor applications. This second edition cancels and replaces the first edition published in 2002. This edition constitutes a technical revision and includes the following significant technical changes with respect to the last edition:
- consideration of the restructured series of standards IEC 61439;
- alignment of test procedures with the newest relevant standards.

Enveloppes vides destinées aux ensembles d'appareillage à basse tension - Règles générales

La CEI 62208:2011 s'applique aux enveloppes vides, avant incorporation de l'appareillage par l'utilisateur, dans l'état où elles sont fournies par le fabricant. Cette norme spécifie les définitions, les classifications, les caractéristiques et les exigences d'essai générales des enveloppes à utiliser en tant que partie d'ensembles d'appareillage (selon par exemple la série CEI 61439), dont la tension assignée ne dépasse pas 1 000 V en courant alternatif ou 1 500 V en courant continu pour usage général extérieur ou intérieur. Cette deuxième édition annule et remplace la première édition parue en 2002. Cette édition constitue une révision technique et elle inclut les modifications techniques majeures suivantes par rapport à l'édition antérieure:
- prise en compte de la série de normes CEI 61439 restructurée;
- alignement des procédures d'essai sur les toutes nouvelles normes applicables.

General Information

• Status: Published
• Publication Date: 18-Aug-2011
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.130.20 - Low voltage switchgear and controlgear
• ICS: 33.200 - Telecontrol. Telemetering
• Technical Committee: SC 121B - Low-voltage switchgear and controlgear assemblies
• Drafting Committee: MT 6 - TC 121/SC 121B/MT 6
• Current Stage: DELPUB - Deleted Publication
• Start Date: 30-Nov-2020
• Completion Date: 01-Jun-2023

Relations

• Revises: IEC 62208:2002 - Empty enclosures for low-voltage switchgear and controlgear assemblies - General requirements
• Effective Date: 05-Sep-2023
• Revised: IEC 62208:2023 - Empty enclosures for low-voltage switchgear and controlgear assemblies - General requirements
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62208 ®
Edition 2.0 2011-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Empty enclosures for low-voltage switchgear and controlgear assemblies –
General requirements
Enveloppes vides destinées aux ensembles d'appareillage à basse tension –
Exigences générales
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IEC 62208 ®
Edition 2.0 2011-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Empty enclosures for low-voltage switchgear and controlgear assemblies –
General requirements
Enveloppes vides destinées aux ensembles d'appareillage à basse tension –
Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX S
ICS 29.130.20 ISBN 978-2-88912-661-3

– 2 – 62208 © IEC:2011
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Classification . 8
5 EMC requirements . 8
6 Information to be given regarding the enclosure . 9
6.1 General . 9
6.2 Marking . 9
6.3 Documentation . 9
6.3.1 General . 9
6.3.2 Dimensions . 9
6.3.3 Mounting arrangements . 10
6.3.4 Permissible loads . 10
6.3.5 Lifting and transport support . 10
6.3.6 Protective circuit . 10
7 Service conditions . 10
7.1 General . 10
7.2 Normal service conditions . 10
7.2.1 Ambient air temperature . 10
7.2.2 Humidity conditions . 11
7.3 Special service conditions . 11
7.4 Conditions during transport and storage . 11
8 Design and construction . 11
8.1 General . 11
8.2 Static loads . 12
8.3 Lifting and transport support . 12
8.4 Access to the interior of the enclosure . 12
8.5 Protective circuit. 12
8.6 Dielectric strength . 12
8.7 Degree of protection (IK code) . 12
8.8 Degree of protection (IP code) . 13
9 Type tests . 13
9.1 General . 13
9.2 General conditions of tests . 13
9.3 Marking . 14
9.4 Static loads . 14
9.5 Lifting . 14
9.6 Axial loads of metal inserts . 15
9.7 Degree of protection against external mechanical impacts (IK code) . 15
9.8 Degree of protection (IP code) . 16
9.8.1 Degree of protection against access to hazardous parts and against
the ingress of solid foreign objects indicated by first characteristic
numeral . 16
9.8.2 Degree of protection against ingress of water as indicated by second
characteristic numeral . 16

62208 © IEC:2011 – 3 –
9.8.3 Degree of protection against hazardous parts as indicated by
additional letter . 17
9.9 Properties of insulating materials . 17
9.9.1 Thermal stability . 17
9.9.2 Resistance to normal heat . 17
9.9.3 Resistance to abnormal heat and to fire . 17
9.10 Dielectric strength . 18
9.10.1 General . 18
9.10.2 Preconditioning. 19
9.10.3 Enclosures without metal elements inside the protected space . 19
9.10.4 Enclosures having metal elements inside the protected space . 19
9.10.5 Results to be obtained . 19
9.11 Continuity of the protective circuit. 19
9.12 Resistance to ultra-violet (UV) radiation . 20
9.13 Resistance to corrosion . 20
9.13.1 General . 20
9.13.2 Test procedure . 20
9.13.3 Results to be obtained . 21
9.14 Thermal power dissipation capability . 21
Bibliography . 22

Table 1 – Number of samples to be tested and order of test per sample . 13
Table 2 – Axial loads of metal inserts. 15

– 4 – 62208 © IEC:2011
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
EMPTY ENCLOSURES FOR LOW-VOLTAGE
SWITCHGEAR AND CONTROLGEAR ASSEMBLIES –
GENERAL REQUIREMENTS
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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with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters expres
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