AS NZS 3112-2004

Page

G THREE-PIN TEST PLUG WITH FLAT AND ROUND PINS FOR THE FULL-INSERTION TEST AND THE FINGER TEST DURING NORMAL INSERTION TEST ............ 62

H DIMENSIONS FOR PLUGS AND SOCKET-OUTLETS, IP-RATED, WITH THREADED RETAINING DEVICES ............ 63

I (VOID) ............ 64

J EQUIPMENT WITH INTEGRAL PINS FOR INSERTION INTO SOCKET-OUTLETS ............ 65

FIGURES

2.1 DIMENSIONS OF PLUGS ............ 28

2.2 APPARATUS FOR FLEXING TEST ............ 32

2.3 FORM OF PIN ............ 33

2.4 DIMENSIONS OF INSULATION ON INSULATED LIVE PINS ............ 33

2.5 PRESSURE TEST APPARATUS FOR INSULATION ON INSULATED PLUG PINS AT HIGH TEMPERATURE ............ 34

2.6 IMPACT TEST APPARATUS FOR INSULATION ON INSULATED PLUG PINS AT LOW TEMPERATURE ............ 35

2.7 ABRASION TEST APPARATUS FOR INSULATION ON INSULATED PIN PLUGS ............ 36

2.8 APPLICATION OF FORCE FOR PIN BENDING TEST ............ 36

3.1 GAUGE FOR DEPTH OF NO-CONTACT TEST ............ 51

3.2 SOCKET-OUTLET FACE PROFILE IN ACCORDANCE WITH CLAUSE 3.6.1 ITEM (a) ............ 52

3.3 SOCKET-OUTLET FACE PROFILE IN ACCORDANCE WITH CLAUSE 3.6.1 ITEM (b) ............ 52

3.4 AREA OF LIMITED PROJECTION ............ 52

3.5 FULLY RECESSED SOCKET-OUTLET ............ 53

3.6 DEVICE FOR CHECKING THE RESISTANCE TO LATERAL STRAIN (THREE-PIN GAUGE) ............ 54

3.7 DEVICE FOR CHECKING THE RESISTANCE TO LATERAL STRAIN (TWO-PIN GAUGE) ............ 55

A1 GAUGE FOR THREE-PIN 250 V MAX FLAT-PIN PLUGS ............ 56

B1 GAUGE FOR TWO-PIN FLAT-PIN 125 V MAX. PLUGS (WITH PARALLEL PINS) ............ 57

C1 THREE-PIN TEST PLUG FOR CHECKING THREE-PIN FLAT-PIN 250 V MAX. SOCKET-OUTLETS AGAINST THE STANDARD TEST FINGER IN ACCORDANCE WITH CLAUSES 3.3.4 AND 3.8.1 ............ 58

D1 THREE-PIN TEST PLUG FOR CHECKING THREE-PIN FLAT-PIN 250 V MAX. SOCKET-OUTLETS AGAINST INCORRECT INSERTION OF PLUGS, IN ACCORDANCE WITH CLAUSE 3.8.2 ............ 59

E1 DIMENSIONS OF EXTRA-LOW VOLTAGE FLAT-PIN PLUGS ............ 60

F1 GAUGE FOR FLAT AND ROUND PIN PLUGS ............ 61

G1 THREE-PIN TEST PLUG WITH FLAT AND ROUND PINS FOR TESTS TO CLAUSES 3.3.4 AND 3.8.1 ............ 62

H1 DIMENSIONS FOR IP-RATED PLUGS AND IP-RATED SOCKETS WITH THREADED RETAINING DEVICE ............ 63

J1 ARRANGEMENT FOR DETERMINATION OF PIVOT ............ 67

TABLES

2.1 RANGE OF FLEXIBLE CORDS ............ 12

2.2 PLUGS—TESTS TO BE APPLIED AND ORDER OF APPLICATION ............ 17

2.3 TEST VOLTAGES FOR HIGH VOLTAGE TEST ............ 18

6

AS/NZS 3112:2004

This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee EL-004, Electrical Accessories. It was approved on behalf of the Council of Standards Australia on 24 November 2004 and on behalf of the Council of Standards New Zealand on 3 December 2004.

This Standard was published on 21 December 2004.

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The following are represented on Committee EL-004:

• Australasian Railway Association
• Australian Chamber of Commerce and Industry
• Australian Electrical and Electronic Manufacturers Association
• Canterbury Manufacturers Association, New Zealand
• Consumer Electronic Suppliers Association
• Consumers' Federation of Australia
• Electrical Regulatory Authorities Council
• Ministry of Economic Development (New Zealand)
• National Electrical and Communications Association
• Plastics Industry Pipe Association of Australia
• Telarc New Zealand
• Testing Interests (Australia)

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Keeping Standards up-to-date

Standards are living documents which reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments which may have been published since the Standard was purchased.

Detailed information about joint Australian/New Zealand Standards can be found by visiting the Standards Web Shop at www.standards.com.au or Standards New Zealand web site at www.standards.co.nz and looking up the relevant Standard in the on-line catalogue.

Alternatively, both organizations publish an annual printed Catalogue with full details of all current Standards. For more frequent listings or notification of revisions, amendments and withdrawals, Standards Australia and Standards New Zealand offer a number of update options. For information about these services, users should contact their respective national Standards organization.

We also welcome suggestions for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. Please address your comments to the Chief Executive of either Standards Australia or Standards New Zealand at the address shown on the back cover.

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This Standard was issued in draft form for comment as DR 04375

2

AS/NZS 3112:2004

Australian/New Zealand Standard™

Approval and test specification—Plugs and socket-outlets

Originated in Australia as C112—1937.

Originated in New Zealand as part of NZSS 198—1939

Previous edition AS/NZS 3112:2000

Sixth edition 2004

COPYRIGHT

© Standards Australia/Standards New Zealand

All rights are reserved No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher

Jointly published by Standards Australia, GPO Box 5420, Sydney, NSW 2001 and Standards New Zealand, Private Bag 2439, Wellington 6020

ISBN 0 7337 6418 5

3

PREFACE

This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee EL-004, Electrical Accessories to supersede AS/NZS 3112:2000 on publication.

The objective of this Standard is to provide the Australian and New Zealand electrical industry including manufacturers, test laboratories and regulators with requirements and test methods for plugs and socket-outlets.

This Standard is one of a series of approval and test specifications to be read in conjunction with AS/NZS 3100, Approval and test specification—General requirements for electrical equipment. The purpose of this series is to outline conditions which must be met to secure approval for the sale and use of electrical equipment. Only safety matters and related conditions are covered.

The essential safety requirements in AS/NZS 3820 that could be applicable to plugs and socket-outlets are covered by this Standard taken in conjunction with any other relevant requirements affecting safety.

This Standard was revised to introduce the following technical and editorial changes:

(a) Amendments 1 and 2 to AS/NZS 3112:2000 have been incorporated into the text.

(b) Requirements for the shape of the ends of plug pins.

(c) Pin bending test.

(d) Changes to fire test requirements.

(e) Requirements with regards to any interference between metal contacts and thermoplastic or resilient mouldings.

(f) Lateral strain test for two pin plugs.

(g) Updating of cross-references to referred Standards and other minor editorial changes.

Notes to the text in the body of the Standard are not mandatory parts of the Standard.

The term 'normative' has been used in this Standard to define the application of the appendix to which it applies. A 'normative' appendix is an integral part of a Standard.

This Standard does not provide all the necessary conditions for a contract

4

CONTENTS

	Page
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE	6
1.2 APPLICATION	6
1.3 REFERENCED DOCUMENTS	6
1.4 DEFINITIONS	7
SECTION 2 PLUGS
2.1 TERMINALS AND INTERNAL CONNECTIONS	9
2.2 PLUG PINS	9
2.3 INSULATING MATERIALS	11
2.4 NON-REWIREABLE PLUGS	11
2.5 MEANS OF ENTRY AND CORD ANCHORAGE FOR FLEXIBLE CORD	11
2.6 RADIO INTERFERENCE SUPPRESSION DEVICES	12
2.7 FINGER-GRIP	13
2.8 RATINGS AND DIMENSIONS OF LOW VOLTAGE PLUGS	13
2.9 INTERNAL CONNECTIONS	14
2.10 ARRANGEMENT OF EARTHING CONNECTIONS	14
2.11 FUSES	14
2.12 MARKING	14
2.13 TESTS ON PLUGS	15
SECTION 3 SOCKET-OUTLETS
3.1 TERMINALS AND INTERNAL CONNECTIONS	37
3.2 PROHIBITED ARRANGEMENTS	37
3.3 SOCKET-OUTLET CONTACTS	37
3.4 INSULATING MATERIALS	39
3.5 RADIO INTERFERENCE SUPPRESSORS	39
3.6 DIMENSIONS	39
3.7 ARRANGEMENT OF EARTHING CONNECTIONS	41
3.8 PREVENTION OF CONTACT WITH LIVE PINS	41
3.9 FUSES	42
3.10 FLOOR SOCKET-OUTLETS	42
3.11 SWITCHED SOCKET-OUTLETS	42
3.12 SHUTTERED SOCKET-OUTLETS	43
3.13 MARKING	43
3.14 TESTS FOR SOCKET-OUTLETS	44
APPENDICES
A GAUGE FOR THREE-PIN FLAT-PIN PLUGS	56
B GAUGE FOR TWO-PIN FLAT-PIN PLUGS WITH PARALLEL PINS	57
C THREE-PIN TEST PLUG WITH FLAT PINS FOR FULL-INSERTION TEST AND THE FINGER TEST DURING NORMAL INSERTION TEST	58
D THREE-PIN TEST PLUG WITH FLAT PINS FOR ABNORMAL INSERTION TEST	59
E PLUGS AND SOCKET-OUTLETS FOR USE IN EXTRA-LOW VOLTAGE CIRCUITS	60
F GAUGE FOR FLAT AND ROUND PIN PLUGS	61

5

Page

G THREE-PIN TEST PLUG WITH FLAT AND ROUND PINS FOR THE FULL-INSERTION TEST AND THE FINGER TEST DURING NORMAL INSERTION TEST ............ 62

H DIMENSIONS FOR PLUGS AND SOCKET-OUTLETS, IP-RATED, WITH THREADED RETAINING DEVICES ............ 63

I (VOID) ............ 64

J EQUIPMENT WITH INTEGRAL PINS FOR INSERTION INTO SOCKET-OUTLETS ............ 65

FIGURES

2.1 DIMENSIONS OF PLUGS ............ 28

2.2 APPARATUS FOR FLEXING TEST ............ 32

2.3 FORM OF PIN ............ 33

2.4 DIMENSIONS OF INSULATION ON INSULATED LIVE PINS ............ 33

2.5 PRESSURE TEST APPARATUS FOR INSULATION ON INSULATED PLUG PINS AT HIGH TEMPERATURE ............ 34

2.6 IMPACT TEST APPARATUS FOR INSULATION ON INSULATED PLUG PINS AT LOW TEMPERATURE ............ 35

2.7 ABRASION TEST APPARATUS FOR INSULATION ON INSULATED PIN PLUGS ............ 36

2.8 APPLICATION OF FORCE FOR PIN BENDING TEST ............ 36

3.1 GAUGE FOR DEPTH OF NO-CONTACT TEST ............ 51

3.2 SOCKET-OUTLET FACE PROFILE IN ACCORDANCE WITH CLAUSE 3.6.1 ITEM (a) ............ 52

3.3 SOCKET-OUTLET FACE PROFILE IN ACCORDANCE WITH CLAUSE 3.6.1 ITEM (b) ............ 52

3.4 AREA OF LIMITED PROJECTION ............ 52

3.5 FULLY RECESSED SOCKET-OUTLET ............ 53

3.6 DEVICE FOR CHECKING THE RESISTANCE TO LATERAL STRAIN (THREE-PIN GAUGE) ............ 54

3.7 DEVICE FOR CHECKING THE RESISTANCE TO LATERAL STRAIN (TWO-PIN GAUGE) ............ 55

A1 GAUGE FOR THREE-PIN 250 V MAX FLAT-PIN PLUGS ............ 56

B1 GAUGE FOR TWO-PIN FLAT-PIN 125 V MAX. PLUGS (WITH PARALLEL PINS) ............ 57

C1 THREE-PIN TEST PLUG FOR CHECKING THREE-PIN FLAT-PIN 250 V MAX. SOCKET-OUTLETS AGAINST THE STANDARD TEST FINGER IN ACCORDANCE WITH CLAUSES 3.3.4 AND 3.8.1 ............ 58

D1 THREE-PIN TEST PLUG FOR CHECKING THREE-PIN FLAT-PIN 250 V MAX. SOCKET-OUTLETS AGAINST INCORRECT INSERTION OF PLUGS, IN ACCORDANCE WITH CLAUSE 3.8.2 ............ 59

E1 DIMENSIONS OF EXTRA-LOW VOLTAGE FLAT-PIN PLUGS ............ 60

F1 GAUGE FOR FLAT AND ROUND PIN PLUGS ............ 61

G1 THREE-PIN TEST PLUG WITH FLAT AND ROUND PINS FOR TESTS TO CLAUSES 3.3.4 AND 3.8.1 ............ 62

H1 DIMENSIONS FOR IP-RATED PLUGS AND IP-RATED SOCKETS WITH THREADED RETAINING DEVICE ............ 63

J1 ARRANGEMENT FOR DETERMINATION OF PIVOT ............ 67

TABLES

2.1 RANGE OF FLEXIBLE CORDS ............ 12

2.2 PLUGS—TESTS TO BE APPLIED AND ORDER OF APPLICATION ............ 17

2.3 TEST VOLTAGES FOR HIGH VOLTAGE TEST ............ 18

6