IEC 60670-22:2024
(Main)Boxes and enclosures for electrical accessories for household and similar fixed electrical installations - Part 22: Particular requirements for connecting boxes and enclosures
Boxes and enclosures for electrical accessories for household and similar fixed electrical installations - Part 22: Particular requirements for connecting boxes and enclosures
IEC 60670-22:2024 applies to boxes, enclosures and parts of enclosures (hereafter called "boxes" and "enclosures") for electrical accessories with a rated voltage not exceeding 1 000 V AC and 1 500 V DC intended for household or similar fixed electrical installations, either indoors or outdoors. Boxes and enclosures complying with this document are suitable for use at ambient temperatures not normally exceeding +40 °C, but their average over a period of 24 h does not exceed +35 °C, with a lower limit of the ambient air temperature of −5 °C. Other temperatures outside the above range can apply according to the classification of the boxes and the enclosures. This document applies to junction connecting boxes or tapping connecting boxes or both.
This second edition cancels and replaces the first edition published in 2003 and Amendment 1:2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) addition of cable joints as a new type of box with the related tests and requirements;
b) addition of tests and requirements for boxes and enclosures exposed to direct sunlight with the related Annex CC;
c) addition of connecting boxes and enclosures having encapsulation capability as a new type of boxes with the related tests, requirements and related Annex DD.
Boîtes et enveloppes pour appareillage électrique pour installations électriques fixes pour usages domestiques et analogues - Partie 22: Règles particulières concernant les boîtes et enveloppes de connexion
L'IEC 60670-22:2024 s'applique aux boîtes, enveloppes et parties d'enveloppes (ci-après désignées par les termes "boîtes" et "enveloppes") pour appareillages électriques dont la tension assignée ne dépasse pas 1 000 V en courant alternatif et 1 500 V en courant continu pour installations électriques fixes pour usages domestiques et analogues, en intérieur ou en extérieur. Les boîtes et enveloppes conformes au présent document sont adaptés à un usage à des températures ambiantes qui ne dépassent pas habituellement +40 °C, mais dont la moyenne sur une période de 24 h ne dépasse pas +35 °C, avec une limite basse de la température ambiante de −5 °C. D'autres températures situées en dehors de la plage ci-dessus peuvent s'appliquer selon la classification des boîtes et enveloppes. Le présent document s'applique aux boîtes de connexion pour jonction ou aux boîtes de connexion pour dérivation, ou aux deux. Cette deuxième édition annule et remplace la première édition parue en 2003 et son Amendement 1:2015. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) des jonctions de câbles ont été ajoutées en tant que nouveau type de boîte, ainsi que les essais et exigences associés;
b) des essais et exigences ont été ajoutés pour les boîtes et enveloppes exposées à la lumière directe du soleil, ainsi que l'Annexe CC associée;
c) des boîtes et enveloppes de connexion avec aptitude d'encapsulage ont été ajoutées en tant que nouveau type de boîtes, ainsi que les essais, les exigences et l'Annexe DD associés.
La version française de la norme n'a pas été soumise au vote.
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IEC 60670-22 ®
Edition 2.0 2024-12
REDLINE VERSION
INTERNATIONAL
STANDARD
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Boxes and enclosures for electrical accessories for household and similar fixed
electrical installations –
Part 22: Particular requirements for connecting boxes and enclosures
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IEC 60670-22 ®
Edition 2.0 2024-12
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Boxes and enclosures for electrical accessories for household and similar fixed
electrical installations –
Part 22: Particular requirements for connecting boxes and enclosures
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.120.10 ISBN 978-2-8327-0113-3
– 2 – IEC 60670-22:2024 RLV © IEC 2024
CONTENTS
FOREWORD . 3
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General requirements . 8
5 General notes remarks on tests . 8
6 Ratings . 9
7 Classification . 9
8 Marking . 9
9 Dimensions. 10
10 Protection against electric shock . 11
11 Provision for earthing . 11
12 Construction . 11
13 Resistance to ageing, protection against ingress of solid objects and against
harmful ingress of water . 12
14 Insulation resistance and electric strength . 12
15 Mechanical strength . 13
16 Resistance to heat . 13
17 Creepage distances, clearances and distances through sealing compound . 15
18 Resistance of insulating material to abnormal heat and fire . 16
19 Resistance to tracking . 16
20 Resistance to corrosion . 16
21 Electromagnetic compatibility (EMC) . 16
Annex AA (informative) Examples of connecting boxes/enclosures . 17
Annex BB (informative) Schematic presentation of connecting devices as a basis for
the definitions . 19
Annex CC (normative) Additional requirements for boxes and enclosures exposed to
direct sunlight . 20
Annex DD (normative) Additional requirements for connecting boxes and enclosures
having encapsulation capability . 21
Bibliography . 26
Figure 101 – Single terminal device . 14
Figure 102 – Multiway terminal device . 14
Figure AA.1 – Four examples of connecting boxes/enclosures . 17
Figure AA.2 – Examples of cable joints . 18
Figure BB.1 – Schematic presentation . 19
Table 101 – Relationship between rated connecting capacity and test current . 15
Table 102 – Creepage distances, clearances and distances through sealing compound . 15
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
BOXES AND ENCLOSURES FOR ELECTRICAL ACCESSORIES FOR
HOUSEHOLD AND SIMILAR FIXED ELECTRICAL INSTALLATIONS –
Part 22: Particular requirements for connecting boxes and enclosures
FOREWORD
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This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition IEC 60670-22:2003+AMD1:2015 CSV. A vertical bar appears
in the margin wherever a change has been made. Additions are in green text, deletions
are in strikethrough red text.
– 4 – IEC 60670-22:2024 RLV © IEC 2024
IEC 60670-22 has been prepared by subcommittee 23B: Plugs, socket-outlets and switches, of
IEC technical committee 23: Electrical accessories. It is an International Standard.
This second edition cancels and replaces the first edition published in 2003 and
Amendment 1:2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) addition of cable joints as a new type of box with the related tests and requirements;
b) addition of tests and requirements for boxes and enclosures exposed to direct sunlight with
the related Annex CC;
c) addition of connecting boxes and enclosures having encapsulation capability as a new type
of boxes with the related tests, requirements and related Annex DD.
The text of this International Standard is based on the following documents:
Draft Report on voting
23B/1535/FDIS 23B/1553/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 60670 series, published under the general title Boxes and enclosures
for electrical accessories for household and similar fixed installations, can be found on the IEC
website.
This document is to be used in conjunction with IEC 60670-1:2024. It lists the changes
necessary to convert that standard into a specific standard for connecting boxes and
enclosures.
Where this document states "addition", "modification" or "replacement", the relevant
requirement, test specifications or explanatory matter in IEC 60670-1:2024 shall be adapted
accordingly.
Clauses and subclauses, notes, figures or tables which are additional to those in
IEC 60670-1:2024 are numbered starting from 101.
Additional annexes to IEC 60670-1:2024 are numbered AA, BB, etc.
In this publication the following print types are used:
• requirements proper: in roman type.
• test specifications: in italic type.
• notes: in smaller roman type.
The
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