COMESA 226-2: Plugs, socket-outlets and couplers for industrial purposes - Part 2: Dimensional interchangeability requirements for pin and contact-tube accessories

2006·1.9 MB·English/French

by  Common Market for Eastern and Southern Africa (COMESA)

Common Market for Eastern
and Southern Africa
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COMESA 226-2 (2006) (English/French): Plugs,
socket-outlets and couplers for industrial
purposes - Part 2: Dimensional
interchangeability requirements for pin and
contact-tube accessories

COMESA HARMONISED COMESA/DHS
STANDARD 226-2: 2005

Plugs, socket-outlets and couplers for
industrial purposes - Part 2: Dimensional
interchangeability requirements for pin and
contact-tube accessories

REFERENCE: DHS 226-2: 2005
Foreword

The Common Market for Eastern and Southern Africa (COMESA) was established in 1994 as a
regional economic grouping consisting of 20 member states after signing the co-operation Treaty.
In Chapter 15 of the COMESA Treaty, Member States agreed to co-operate on matters of
standardisation and Quality assurance with the aim of facilitating the faster movement of goods
and services within the region so as to enhance expansion of intra-COMESA trade and industrial
expansion.

Co-operation in standardisation is expected to result into having uniformly harmonised standards.
Harmonisation of standards within the region is expected to reduce Technical Barriers to Trade
that are normally encountered when goods and services are exchanged between COMESA
Member States due to differences in technical requirements. Harmonized COMESA Standards
are also expected to result into benefits such as greater industrial productivity and
competitiveness, increased agricultural production and food security, a more rational exploitation
of natural resources among others.

COMESA Standards are developed by the COMESA experts on standards representing the
National Standards Bodies and other stakeholders within the region in accordance with
international procedures and practices. Standards are approved by circulating Final Draft
Harmonized Standards (FDHS) to all member states for a one Month vote. The assumption is
that all contentious issues would have been resolved during the previous stages or that an
international or regional standard being adopted has been subjected through a development
process consistent with accepted international practice.

COMESA Standards are subject to review, to keep pace with technological advances. Users of
the COMESA Harmonized Standards are therefore expected to ensure that they always have the
latest version of the standards they are implementing.

This COMESA standard is technically identical to the International Standard IEC 60309-2:2005.

A COMESA Harmonized Standard does not purport to include all necessary provisions of a contract.
Users are responsible for its correct application.
NORME CEI
INTERNATIONALE IEC

60309-2
INTERNATIONAL

STANDARD
Edition 4.1
2005-12

Edition 4:1999 consolidée par l'amendement 1:2005
Edition 4:1999 consolidated with amendment 1:2005
Prises de courant pour usages industriels –
Partie 2:
Règles d'interchangeabilité dimensionnelle
pour les appareils à broches et alvéoles

Plugs, socket-outlets and couplers
for industrial purposes –
Part 2:
Dimensional interchangeability requirements
for pin and contact-tube accessories
Numéro de référence
Reference number
CEI/IEC 60309-2:1999+A1:2005
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sont numérotées à partir de 60000. Ainsi, la CEI 34-1 issued with a designation in the 60000 series. For
devient la CEI 60034-1. example, IEC 34-1 is now referred to as IEC 60034-1.
Editions consolidées Consolidated editions
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respectivement la publication de base, la publication de the base publication incorporating amendment 1 and
base incorporant l’amendement 1, et la publication de the base publication incorporating amendments 1

base incorporant les amendements 1 et 2. and 2.
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60309-2  IEC:1999+A1:2005 – 3 –
CONTENTS
FOREWORD...........................................................................................................................5
INTRODUCTION.....................................................................................................................9

1 Scope.............................................................................................................................11
2 Definitions......................................................................................................................11
3 Normative references.....................................................................................................13
4 General..........................................................................................................................13
5 Standard ratings.............................................................................................................13
6 Classification..................................................................................................................15
7 Marking..........................................................................................................................15
8 Dimensions ....................................................................................................................21
9 Protection against electric shock....................................................................................31
10 Provision for earthing.....................................................................................................31
11 Terminals and terminations ............................................................................................31
12 Interlocks and retaining devices .....................................................................................37
13 Resistance to ageing of rubber and thermoplastic material.............................................37
14 General construction......................................................................................................39
15 Construction of socket-outlets ........................................................................................41
16 Construction of plugs and connectors.............................................................................43
17 Construction of appliance inlets......................................................................................45
18 Degrees of protection.....................................................................................................47
19 Insulation resistance and dielectric strength...................................................................47
20 Breaking capacity...........................................................................................................47
21 Normal operation............................................................................................................47
22 Temperature rise............................................................................................................49
23 Flexible cables and their connection...............................................................................49
24 Mechanical strength.......................................................................................................49
25 Screws, current-carrying parts and connections..............................................................49
26 Creepage distances, clearances and distances through sealing compound ....................49
27 Resistance to heat, fire and tracking...............................................................................49
28 Corrosion and resistance to rusting................................................................................49
29 Conditional short-circuit current withstand test ...............................................................51
30 Electromagnetic compatibility.........................................................................................51

Standards sheets..................................................................................................................53
Figures.................................................................................................................................87
Annex AA (informative) List of the clause numbers that require re-testing.........................101
60309-2  IEC:1999+A1:2005 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

PLUGS, SOCKET-OUTLETS AND COUPLERS
FOR INDUSTRIAL PURPOSES –

Part 2: Dimensional interchangeability requirements
for pin and contact-tube accessories

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
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
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 express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
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Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 60309-2 has been prepared by subcommittee 23H: Industrial plugs
and socket-outlets, of IEC technical committee 23: Electrical accessories.
This part 2 shall be used in conjunction with part 1.
This consolidated version of IEC 60309-2 is based on the fourth (1999) [documents
23H/89/FDIS and 23H/92/RVD] and its amendment 1 (2005) [documents 23H/175/FDIS and
23H/183/RVD].
It bears the edition number 4.1.
A vertical line in the margin shows where the base publication has been modified by
amendment 1.
60309-2  IEC:1999+A1:2005 – 7 –
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the maintenance result 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.
60309-2  IEC:1999+A1:2005 – 9 –
INTRODUCTION

This standard is divided into several parts:
Part 1: General requirements, comprising clauses of a general character.
Subsequent parts: Particular requirements dealing with particular types. The clauses of these
particular requirements supplement or modify the corresponding clauses in Part 1. Where the
text of subsequent parts indicates an "addition" to or a "replacement" of the relevant
requirement, test specification or explanation of Part 1, these changes are made to the
relevant text of Part 1, which then becomes part of the standard. Where no change is
necessary, the words "This clause of Part 1 is applicable" are used.