This part of lEC 60320 sets the general requirements for appliance couplers for two poles and two poles with earth contact and for the connection of electrical devices for household and similar onto the mains supply.

This part of lEC 60320 is also valid for appliance inlets/appliance outlets integrated or incorporated in appliances.

The rated voltage does not exceed 250 V (a.c.) and the rated current does not exceed 16 A.

Appliance couplers complying with this part of lEC 60320 are suitable for normal 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.

Appliance couplers are not suitable for

use in place of plug and socket-outlet systems according to IEC 60884-1.
use in place of devices for connecting luminaires (DCLs) according to IEC 61995 or luminaire supporting couplers (LSCs).

NOTE Requirements for d.c. are under consideration.

PDF Catalog

PDF Pages	PDF Title
2	National foreword
4	European foreword Endorsement notice
7	CONTENTS
11	FOREWORD
13	1 Scope 2 Normative references
14	3 Terms and definitions
15	Figures Figure 1 – Intended use of appliance couplers
17	4 General requirements
18	5 General notes on tests 5.1 General 5.2 Test samples 5.3 Failures 5.4 Routine tests
19	6 Standard ratings 7 Classification of appliance couplers 8 Marking 8.1 General 8.2 Additional markings
20	8.3 Appliance couplers for class II equipment 8.4 Symbols or alphanumeric notations 8.5 Legibility of markings 8.6 Terminal markings and wiring instructions
21	8.7 Durability 8.8 Test and inspection 9 Dimensions and compatibility 9.1 General 9.2 Single‐pole connections 9.3 Compatibility
22	9.4 Dimensions for standardized appliance couplers 9.5 Dimensions for non-standardized appliance couplers 10 Protection against electric shock 10.1 Accessibility of live parts
23	10.2 Protection against single pole connection 10.3 Protection against access to live parts 10.4 External parts 10.5 Shrouds 11 Provision for earthing 12 Terminals and terminations 12.1 General
24	12.2 Rewirable appliance couplers 12.3 Non‐rewirable appliance couplers 13 Construction 13.1 Risk of accidental contact 13.2 Contact positions 13.3 Parts covering live parts Tables Table 1 – Position of contacts
25	13.4 Pin construction 13.4.1 Prevention of rotation 13.4.2 Pin retention 13.4.3 Non‐solid pins
26	13.5 Contact pressure 13.6 Enclosure 13.6.1 General 13.6.2 Rewirable connectors/plug connectors Figure 2 – Device for testing non-solid pins
27	13.6.3 Non-rewirable connectors/plug connectors 13.7 Earth connection
28	13.8 Location of terminals and terminations 13.8.1 General 13.8.2 Free wire test for rewirable accessories 13.8.3 Free wire test for non-rewirable non-moulded-on accessories
29	13.8.4 Free wire verification for non-rewirable moulded-on accessories 13.9 Connectors/plug connectors without earthing contact 13.10 Fuses, relays, thermostats, thermal cut-outs and switches 14 Moisture resistance
30	15 Insulation resistance and electric strength 15.1 General
31	15.2 Insulation resistance Table 2 – Maximum diameters of the cords
32	15.3 Dielectric strength Table 3 – Minimum insulation resistance Table 4 – Dielectric strength
33	16 Forces necessary to insert and to withdraw the connector/appliance outlet 16.1 General 16.2 Verification of the maximum withdrawal force Table 5 – Maximum and minimum withdrawal forces
34	Figure 3 – Apparatus for checking the withdrawal force
35	16.3 Verification of the minimum withdrawal force Figure 4 – Gauge for verification of the minimum withdrawal force
36	17 Operation of contacts 18 Resistance to heating of appliance couplers for hot conditions or very hot conditions 18.1 General 18.2 Heating test for connectors/plug connectors
37	18.3 Heating test for appliance inlets/appliance outlets 19 Breaking capacity
38	Figure 5 – Circuit diagram for breaking capacity and normal operation tests Table 6 – Ratings for the tests of Clause 19
39	20 Normal operation 21 Temperature rise Table 7 – Ratings for the tests of Clause 20
40	22 Cords and their connection 22.1 Cords for non-rewirable connectors/plug connectors Table 8 – Cords and conductors for the tests of Clause 21
41	22.2 Cord anchorage 22.2.1 General 22.2.2 Additional requirements for rewirable connectors/plug connectors Table 9 – Type and nominal cross-sectional area of cords
42	22.2.3 Pull test for cable anchorage Figure 6 – Apparatus for testing the cord anchorage
43	Table 10 – Types of cord for the rewirable connector/plug connector test
44	22.3 Flexing test
45	Figure 7 – Apparatus for the flexing test
46	23 Mechanical strength 23.1 General
47	23.2 Free fall test 23.3 Lateral pull test
48	Figure 8 – Example of apparatus for pulling test
49	23.4 Impact test 23.5 Deformation test Table 11 – Values for the lateral pulls applied
50	23.6 Torque and pull test 24 Resistance to heat and ageing 24.1 Resistance to heat Table 12 – Values for torque and pull forces
51	24.2 Resistance to ageing 24.2.1 General 24.2.2 Ageing test for elastomeric materials 24.2.3 Ageing test for thermoplastic materials 24.2.4 Ageing test assessment
52	25 Screws, current-carrying parts and connections 25.1 General
53	25.2 Electrical connections 25.3 Securement of connections 25.4 Metallic parts Table 13 – Torque applied for the tightening and loosening test
54	26 Clearances, creepage distances and solid insulation 26.1 General 26.2 Clearances 26.2.1 Dimensioning
55	26.2.2 Minimum values for clearances Table 14 – Rated impulse withstand voltage for appliance couplersenergized directly from the low voltage mains
56	26.3 Creepage distances 26.3.1 Dimensioning 26.3.2 Minimum creepage distances Table 15 – Minimum clearances for basic insulation
57	26.4 Solid insulation Table 16 – Minimum creepage distances for basic and functional insulation
58	27 Resistance of insulating material to heat, fire and tracking 27.1 Resistance to heat and fire 27.1.1 General 27.1.2 Object of the test 27.1.3 General description of the test 27.1.4 Description of test apparatus 27.1.5 Degree of severity
59	27.1.6 Verification of the thermocouple 27.1.7 Preconditioning 27.1.8 Initial measurements 27.1.9 Test procedure 27.1.10 Observations and measurements 27.1.11 Evaluation of test results 27.2 Resistance to tracking 28 Resistance to rusting
60	29 Electromagnetic compatibility (EMC) requirements 29.1 Immunity – Accessories not incorporating electronic components 29.2 Emission – Accessories not incorporating electronic components
61	Annexes Annex A (normative) Proof tracking test
62	Annex B (normative) Routine tests for factory wired appliance couplers related to safety B.1 General B.2 Polarized systems: Phase (L) and neutral (N) – Correct connection Table B.1 – Test overview
63	B.3 Earth (PE) continuity B.4 Short-circuit/wrong connection and reduction in creepage distance and clearance B.4.1 Accessible surface safety check B.4.2 Short-circuit/wrong connection
64	Annex C (normative) Test schedule Table C.1 – Test schedule
66	Annex D (informative) Comparison of typical conductor cross-sectional areas Table D.1 – Comparison of conductor sizes
67	Bibliography

Status	Withdrawn
Title	Appliance couplers for household and similar general purposes – General requirements
Corrects	BS EN 60320-1:2015
Replaces	BS EN 60320-1:2001+A1:2007
Publisher	BSI
Committee	PEL/23/3
Pages	68
Publication Date	2019-07-10
Withdrawn Date	2024-06-06
ISBN	978 0 539 05135 3
Standard Number	BS EN 60320-1:2015
Identical National Standard Of	EN 60320-1:2015/AC:2019-06, IEC 60320-1:2015/COR2:2019, IEC 60320-1:2015/COR2:2019, EN 60320-1:2015/AC:2019-06
Descriptors	Alternating current, Earthing, Electrical household appliances, Electrical testing, Rated voltage, Rated current, Couplers, Design, Electrical safety, Household equipment, Electric connectors, Dimensions
ICS Codes	29.120.30 - Plugs, socket-outlets, couplers


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