IEC 60320-1:2001

IEC 60320-1
Edition 2.1 2007-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Appliances couplers for household and similar general purposes –
Part 1: General requirements
Connecteurs pour usages domestiques et usages généraux analogues –
Partie 1: Prescriptions générales

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IEC 60320-1
Edition 2.1 2007-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Appliances couplers for household and similar general purposes –
Part 1: General requirements
Connecteurs pour usages domestiques et usages généraux analogues –
Partie 1: Prescriptions générales

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CR
CODE PRIX
ICS 29.120.30 ISBN 2-8318-9335-6

– 2 – 60320-1 © IEC:2001+A1:2007
CONTENTS
FOREWORD.5

1 Scope.7
2 Normative references.7
3 Definitions .8
4 General requirements .11
5 General notes on tests.11
6 Standard ratings .12
7 Classification .13
8 Marking .13
9 Dimensions and compatibility.15
10 Protection against electric shock.18
11 Provision for earthing.19
12 Terminals and terminations.19
13 Construction.20
14 Moisture resistance.24
15 Insulation resistance and electric strength.25
16 Forces necessary to insert and to withdraw the connector .26
17 Operation of contacts.28
18 Resistance to heating of appliance couplers for hot conditions or very hot conditions.28
19 Breaking capacity .29
20 Normal operation .30
21 Temperature rise.31
22 Cords and their connection .31
23 Mechanical strength.36
24 Resistance to heat and ageing .39
25 Screws, current-carrying parts and connections .41
26 Creepage distances, clearances and distances through insulation .44
27 Resistance of insulating material to heat, fire and tracking .45
28 Resistance to rusting .48
29 Electromagnetic compatibility (EMC) requirements .48

Annex A (normative) Routine tests for factory wired appliance couplers related
to safety (protection against electric shock and correct polarity). 112

60320-1 © IEC:2001+A1:2007 – 3 –
Standard sheets C1 – C25 .49
Figure 1 – Survey of appliance couplers .75
Figure 1 – Survey of appliance couplers (concluded) .76
Figure 2 – "GO" gauge for connectors to standard sheet C1 (see 9.1).77
Figure 4 – “GO” gauge for connectors to standard sheet C5 (see 9.1).78
Figure 5 – "GO" gauge for connectors to standard sheet C7 (see 9.1).79
Figure 5A – "GO" gauge for side-entry connectors to standard sheet C7 (see 9.1) .80
Figure 6 – "NOT GO" gauge for connectors to standard sheet C1 (see 9.4).81
Figure 7 – "NOT-GO" gauge for connectors to standard sheets C1, C5 and C7 (see 9.4) .82
Figure 8 – "NOT-GO" gauge for connectors to standard sheets C1 and C7 (see 9.4).83
Figure 9 – "NOT-GO" gauge for appliance inlets to standard sheets C8, C8A
and C8B (see 9.4) .84
Figure 9A – "GO" gauge for connectors to standard sheet C9 (see 9.1) .85
Figure 9B – "NOT-GO" gauge for connectors to standard sheet C9 (see 9.4) .86
Figure 9C – "GO" gauge for appliance inlets to standard sheets C10 (see 9.1).87
Figure 9F – "GO" gauge for connectors to standard sheet C13 (see 9.1).88
Figure 9G – "NOT-GO" gauge for connectors to standard sheets C13 and C17 (see 9.4) .89
Figure 9H – "GO" gauge for appliance inlets to standard sheets C14, C16 and C18
(see 9.1) .90
Figure 9J – "GO" gauge for connectors to standard sheet C15 (see 9.1) .91
Figure 9K – "GO" gauge for connectors to standard sheet C17 (see 9.1).92
Figure 9L – "GO" gauge for connectors to standard sheet C19 (see 9.1) .93
Figure 9M – "GO" gauge for appliance inlets to standard sheets C20 and C24 (see 9.1) .94
Figure 9N – "GO" gauge for connectors to standard sheet C21 (see 9.1) .95
Figure 9P – "GO" gauge for appliance inlets to standard sheet C22 (see 9.1).96
Figure 9Q – "GO" gauge for connectors to standard sheet C23 (see 9.1) .97
Figure 9R – "NOT-GO" gauge for connectors to standard sheets C13, C15 and C17
(see 9.4) .98
Figure 9S – "GO" gauge for connectors to standard sheet C15A (see 9.1) .99
Figure 9T – "GO" gauge for appliance inlets to standard sheet C16A (see 9.1) . 100
Figure 10 – Standard test finger (see 10.1). 101
Figure 11 – Device for testing non-solid pins (see 13.4). 102
Figure 12 – Apparatus for checking the withdrawal force (see 16.2) . 102
Figure 13 – Example of apparatus for heating test (see 18.2) . 103
Figure 14 – VOID . 103
Figure 15 – Circuit diagram for breaking capacity and normal operation tests
(see clauses 19 and 20) . 104
Figure 16 – Apparatus for testing the cord anchorage (see 22.3) . 104
Figure 17 – Apparatus for the flexing test (see 22.4). 105
Figure 18 – VOID . 105
Figure 19 – Example of apparatus for pulling test (see 23.3). 106
Figure 20 – Example of apparatus for pressure test on shrouds (see 23.4) . 106
Figure 21 – Impact-test apparatus (see 23.5) . 107

– 4 – 60320-1 © IEC:2001+A1:2007
Figure 22 – Blades for checking the resistance against deformation of the front part
of the connector to standard sheet C7 (see 23.6). 107
Figure 23 – Ball-pressure apparatus (see 24.1.2) . 108
Figure 24 – Apparatus for pressure test on connectors (see 24.1.3). 109
Figure 25 – VOID . 109
Figure 26 – VOID . 109
Figure 27 – Gauges for checking the distance from the engagement face of connectors
to the point of first contact (see 9.1) . 110
Figure 28 – Thread-forming tapping screw (see 3.19) . 111
Figure 29 – Thread-cutting tapping screw (see 3.20) . 111
Figure 30 – Gauge for the verification of the minimum withdrawal force . 111

Table 2 – Maximum diameters of the cords .25
Table 3 – Maximum and minimum withdrawal forces.26
Table 4 – Type and minimum nominal cross-sectional area of cords .32
Table 5 – Types of cord for the rewirable connector test .33
Table 6 – Type of cord and nominal cross-sectional area for rewirable connectors .34
Table 7 – Values for the lateral pulls applied.37
Table 8 – Torque applied for the tightening and loosening test.42
Table 9 – Minimum creepage distances and clearances through insulation .45

60320-1 © IEC:2001+A1:2007 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
APPLIANCE COUPLERS FOR HOUSEHOLD
AND SIMILAR GENERAL PURPOSES –

Part 1: General requirements
FOREWORD
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60320-1 has been prepared by subcommittee 23G: Appliance
couplers, of IEC technical committee 23: Electrical accessories.
This consolidated version of IEC 60320-1 consists of the second edition (2001) [documents
23G/215/FDIS and 23G/218/RVD] and its amendment 1 (2007) [documents 23G/272/FDIS and
23G/274/RVD].
The technical content is therefore identical to the base edition and its amendment and has
been prepared for user convenience.
It bears the edition number 2.1.
A vertical line in the margin shows where the base publication has been modified by
amendment 1.
Annex A forms an integral part of this standard.

– 6 – 60320-1 © IEC:2001+A1:2007
IEC 60320 consists of the following parts, under the general title: Appliance couplers for
household and similar general purposes:
– Part 2-1: Sewing machine couplers
– Part 2-2: Interconnection couplers for household and similar equipment
– Part 2-3: Appliance couplers with a degree of protection higher than IPX0
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.
60320-1 © IEC:2001+A1:2007 – 7 –
APPLIANCE COUPLERS FOR HOUSEHOLD
AND SIMILAR GENERAL PURPOSES –

Part 1: General requirements
1 Scope
This part of IEC 60320 is applicable to two-pole appliance couplers for a.c. only, with or without
earthing contact, with a rated voltage not exceeding 250 V and a rated current not exceeding
16 A, for household and similar general purposes and intended for the connection of a supply
cord to electrical appliances or other electrical equipment for 50 Hz or 60 Hz supply.
NOTE 1 Appliance inlets integrated or incorporated in appliances or other equipment are within the scope of this
standard. The dimensional and general requirements of this standard apply to such inlets, but certain tests may not
be relevant.
NOTE 2 The requirements for connectors are based on the assumption that the temperature of the pins of the
corresponding appliance inlets does not exceed
70 °C for connectors for cold conditions;
120 °C for connectors for hot conditions;
155 °C for connectors for very hot conditions.
NOTE 3 Appliance couplers complying with this standard are suitable for use at ambient temperatures not
normally exceeding 25 °C, but occasionally reaching 35 °C.
NOTE 4 Appliance couplers complying with the standard sheets in this standard are intended for the connection of
equipment having no special protection against moisture. If appliance couplers are used with equipment which may
be subject to spillage of liquid in normal use then protection against moisture is to be provided by the equipment.
NOTE 5 Special constructions may be required
– in locations where special conditions prevail, for example, as in ships, vehicles and the like;
– in hazardous locations, for example, where explosions are liable to occur.
2 Normative references
The following referenced documents are indispensable for the application of this document. For
dated references, only the edition cited applies. For undated references, the latest edition of
the referenced document (including any amendments) applies.
IEC 60050(151):1978, International Electrotechnical Vocabulary (IEV) – Chapter 151: Electrical
and magnetic devices
IEC 60068-2-32:1975, Environmental testing – Part 2: Tests – Test Ed: Free fall
IEC/TR 60083:1997, Plugs and socket-outlets for domestic and similar general use
standardized in member countries of IEC
IEC 60112:1979, Method for determining the comparative and the proof tracking indices of solid
insulating materials under moist conditions
IEC 60227 (all parts), Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V
IEC 60245 (all parts), Rubber insulated cables – Rated voltages up to and including 450/750 V

– 8 – 60320-1 © IEC:2001+A1:2007
IEC 60695-2-10:2000, Fire hazard testing – Part 2-10: Glowing/hot-wire based test methods –
Glow-wire apparatus and common test procedure
IEC 60695-2-11:2000, Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods –
Glow-wire flammability test method for end-products
IEC 60695-2-12:2000, Fire hazard testing – Part 2-12: Glowing/hot-wire based test methods –
Glow-wire flammability test method for materials
IEC 60695-2-13:2000, Fire hazard testing – Part 2-13: Glowing/hot-wire based test methods –
Glow-wire ignitability test method for materials
IEC 60730 (all parts), Automatic electrical controls for household and similar use
IEC 60999-1:1999, Connecting devices – Electrical copper conductors – Safety requirements
for screw-type and screwless-type clamping units – Part 1: General requirements and particular
2 2
requirements for clamping units for conductors from 0,2 mm up to 35 mm (included)
IEC 61058 (all parts), Switches for appliances
IEC 61140:1997, Protection against electric shock – Common aspects for installation and
equipment
ISO 286-1:1988, ISO system of limits and fits – Part 1: Bases of tolerances, deviations and fits
ISO 1101:1983, Technical drawings – Geometrical tolerancing – Tolerancing of form,
orientation, location and run-out – Generalities, definitions, symbols, indications on drawings
ISO 1456:1988, Metallic coatings – Electrodeposited coatings of nickel plus chromium and of
copper plus nickel plus chromium
ISO 2081:1986, Metallic coatings – Electroplated coatings of zinc on iron or steel
ISO 2093:1986, Electroplated coatings of tin – Specification and test methods
3 Definitions
Where the terms "voltage" and "current" are used, they imply the r.m.s. values, unless
otherwise specified.
For the purpose of this International Standard, the following definitions apply.
The term "accessory" is used as a general term covering connectors and/or appliance inlets
(and, in some cases, plugs as well).
3.1
appliance coupler
means enabling the connection and disconnection at will, of a cord to an appliance or other
equipment. It consists of two parts: a connector and an appliance inlet
3.2
connector
part of the appliance coupler integral with, or intended to be attached to, the cord connected to
the supply
NOTE Only one cord is connected to the connector.

60320-1 © IEC:2001+A1:2007 – 9 –
3.3
appliance inlet
part of the appliance coupler integrated or incorporated in the appliance or equipment or
intended to be fixed to it
NOTE 1 An appliance inlet integrated in an appliance or equipment is an appliance inlet (the shroud and base of)
which is formed by the housing of the appliance or equipment.
NOTE 2 An appliance inlet incorporated in an appliance or an equipment is a separate appliance inlet built in or
fixed to an appliance or equipment.
3.4
rewirable accessory
accessory so constructed that the cord can be replaced
3.5
non-rewirable accessory
accessory so constructed that it forms a constructional unit with the cord which is assembled
by the manufacturer of the accessory. This unit shall be such that
– the cord cannot be separated from the accessory without making this permanently useless,
and
– the accessory cannot be opened by hand or by using a general purpose tool, for example
a screwdriver, as intended
NOTE An accessory is considered to be permanently useless when for re-assembling the accessory, parts or
materials other than the original are to be used.
3.6
cord set
assembly consisting of one cord fitted with one non-rewirable plug and one non-rewirable
connector, intended for the connection of an electrical appliance or equipment to the electrical
supply
3.7
base of a pin
part of the pin where it protrudes from the engagement face
3.8
retaining device
mechanical arrangement which holds a connector in proper engagement with a corresponding
appliance inlet and prevents its unintentional withdrawal
3.9
rated voltage
voltage assigned to the accessory by the manufacturer
3.10
rated current
current assigned to the accessory by the manufacturer
3.11
terminal
part to which a conductor is attached, providing a re-usable connection
3.12
termination
part to which a conductor is permanently attached

– 10 – 60320-1 © IEC:2001+A1:2007
3.13
screw-type terminal
terminal for the connection and subsequent disconnection of a conductor, the connection being
made, directly or indirectly by, means of screws or nuts of any kind
3.14
pillar terminal
screw-type terminal in which the conductor is inserted into a hole or cavity, where it is clamped
under the shank of a screw. The clamping pressure may be applied directly by the shank of the
screw or through an intermediate clamping plate to which pressure is applied by the shank of
the screw
3.15
screw terminal
screw-type terminal in which the conductor is clamped under the head of a screw.
The clamping pressure may be applied directly by the head of the screw or through an
intermediate part, such as a washer, clamping plate or anti-spread device
3.16
stud terminal
screw-type terminal in which the conductor is clamped under a nut. The clamping pressure may
be applied directly by a suitably shaped nut or through an intermediate part, such as a washer,
clamping plate or anti-spread device
3.17
screwless terminal
connecting terminal for the connection and subsequent disconnection of a conductor, the
connection being made, directly or indirectly, by means of springs, wedges, eccentrics, cones,
etc.
3.18
tapping screw
screw manufactured from a material having a higher resistance to deformation when applied by
rotary insertion into a hole in a material having a lower resistance to deformation
NOTE The screw is made with a tapered thread, the taper being applied to the core diameter of the thread at the
end section of the screw. The thread produced by application of the screw is formed securely only after sufficient
revolutions have been made to exceed the number of threads on the tapered section.
3.19
thread-forming tapping screw
tapping screw having an uninterrupted thread. It is not a function of this thread to remove
material from the hole
NOTE An example of a thread-forming tapping screw is shown in figure 28.
3.20
thread-cutting tapping screw
tapping screw having an interrupted thread. It is a function of this thread to remove material
from the hole
NOTE An example of a thread-cutting tapping screw is shown in figure 29.

60320-1 © IEC:2001+A1:2007 – 11 –
3.21
type test
test of one or more devices made to a certain design to show that the design meets certain
requirements
[IEV 151-04-15]
3.22
routine test
test to which each individual device is subjected during and/or after manufacture to ascertain
whether it complies with certain criteria
[IEV 151-04-16]
4 General requirements
Appliance couplers shall be so designed and constructed that in normal use their performance
is reliable and without danger to the user or surroundings.
In general, compliance is checked by carrying out all the tests specified.
NOTE It is to be understood that appliance couplers are to be capable of meeting all the relevant requirements
and tests specified in this standard.

5 General notes on tests
5.1 Tests shall be made to prove compliance with the requirements laid down in this standard,
where applicable.
Tests are as follows:
− type tests shall be made on representative samples of each accessory;
− routine tests shall be conducted by the manufacturer and made on each accessory
manufactured to this standard, where applicable.
Subclauses 5.2 to 5.7 are applicable to type tests and 5.8 to routine tests.
5.2 Unless otherwise specified, the specimens are tested as delivered and under normal
conditions of use, at an ambient temperature of 20 °C ± 5 °C; they are tested with a.c. at 50 Hz
or 60 Hz.
Non-rewirable connectors, other than those forming part of a cord set, shall be submitted with a
cord at least 1 m long.
5.3 Unless otherwise specified, the tests are carried out in the order of the clauses.
5.4 Unless otherwise specified, connectors and appliance inlets are tested in conjunction with
an appropriate appliance inlet or connector, complying with this standard.
5.5 For appliance inlets, three specimens are subjected to the tests specified.

– 12 – 60320-1 © IEC:2001+A1:2007
For connectors, nine specimens (11 if of elastomeric or thermoplastic material) are required:
− set 1 of three specimens is subjected to the tests specified, with the exception of those of
clauses 14, 15, 16, 19, 20 and 21 and of 22.4 and 24.2;
− set 2 of three specimens is subjected to the tests of clauses 14, 15, 16, 19, 20 and 21
(including the repetition of the tests of clause 16);
− set 3 of three specimens is subjected to the test of 22.4;
− set 4 of two specimens of elastomeric or thermoplastic material is subjected to the test of
24.2 (including the preconditioning according to clause 16).
For non-rewirable connectors with indicators, three additional specimens with one pole of the
indicator disconnected are required for the tests of clause 15.
5.6 Appliance inlets integrated or incorporated in an appliance or equipment are tested under the
conditions of use of the equipment, the number of specimens then being the same as the number of
specimens of equipment required according to the relevant standard for the equipment.
5.7 Connectors and appliance inlets are considered not to comply with this standard if there
are more failures than that of one specimen in one of the tests. If one specimen fails in a test,
that test and those preceding which may have influenced the result of that test are repeated on
another set of specimens of the number specified in 5.5, all of which shall then comply with the
repeated tests.
In general, only the test which caused the failure need be repeated unless
a) a failure occurs to one of the three specimens of set 2 specified in 5.5, when tested in
accordance with clauses 19, 20 or 21, in which case the tests required by 5.5 for set 2 are
repeated from clause 16 onwards; or
b) a failure occurs to one of the three specimens of set 1 specified in 5.5, when tested in
accordance with clauses 22 or 23 (except 22.4), in which case the tests required by 5.5 for
set 1 are repeated from clause 18 onwards.
The applicant may submit, together with the first set of specimens, the additional set which
may be wanted should one specimen fail. The testing station will then, without further request,
test the additional specimens and will only reject if a further failure occurs. If the additional set
of specimens is not submitted at the same time, a failure of one specimen will entail a
rejection.
5.8 Routine tests are specified in annex A.
6 Standard ratings
6.1 The standard rated voltage is 250 V.
6.2 Standard rated currents are 0,2 A, 2,5 A, 6 A, 10 A and 16 A, as specified in 9.1.
Compliance with the requirements of 6.1 and 6.2 is checked by visual inspection of the
marking.
60320-1 © IEC:2001+A1:2007 – 13 –
7 Classification
7.1 Appliance couplers are classified:
7.1.1 According to maximum pin temperature at the base of the pins of the corresponding
appliance inlet:
– appliance couplers for cold conditions (pin temperature not exceeding 70 °C);
– appliance couplers for hot conditions (pin temperature not exceeding 120 °C);
– appliance couplers for very hot conditions (pin temperature not exceeding 155 °C).

7.1.2 According to the type of equipment to be connected:
– appliance couplers for class I equipment;
– appliance couplers for class II equipment.
NOTE For a description of the classes, see IEC 61140.

7.2 Connectors are, moreover, classified according to the method of connecting the cord:
– rewirable connectors;
– non-rewirable connectors.
NOTE 1 Figure 1 shows the various types of appliance couplers standardized and their application.
NOTE 2 0,2 A appliance couplers are intended only for the connection of small hand-held class II equipment, if
allowed by the relevant standard for the equipment.
NOTE 3 Appliance inlets for cold conditions are not intended to be used with heating appliances having external
metal parts, the temperature rise of which may, under normal operating conditions, exceed 75 K and which might be
touched in normal use by the cord.
NOTE 4 Appliance couplers for hot conditions may also be used under cold conditions; appliance couplers for very
hot conditions may also be used under cold or hot conditions.
8 Marking
8.1 Connectors shall be marked with:
– rated current in amperes, except for 0,2 A connectors;
– rated voltage in volts;
– symbol for nature of supply;
– name, trade mark or identification mark of the maker or responsible vendor;
– type reference;
– the marking as specified in Subclause 7.5 of IEC 60999-1 to identify the type of conductors
suitable for screwless terminals.
NOTE The type reference may be a catalogue number.
8.2 Appliance inlets other than those integrated or incorporated in an appliance or equipment
shall be marked with the name, trade mark or identification mark of the maker or responsible
vendor and a type reference, the latter being not visible after the appliance inlet is correctly
mounted or a connector is in engagement. The marking of 0,2 A and 2,5 A appliance inlets may
be visible, provided that there can be no doubt with regard to the marking of the appliance
itself.
NOTE The type reference may be a catalogue number.

– 14 – 60320-1 © IEC:2001+A1:2007
8.3 Connectors and appliance inlets for class II equipment shall not be marked with the
symbol for class II construction.
8.4 When symbols are used, they shall be as follows:
amperes A
volts V
alternating current ~
earth or
NOTE Preferably the symbol with a circle should be used.
For the marking of rated current and rated voltage, figures may be used alone, the figure for
rated current being placed before or above that for rated voltage and separated from the latter
by a line. The symbol for nature of supply shall be placed next to the marking for rated current
and rated voltage.
NOTE 1 The marking for current, voltage and nature of supply may accordingly be as follows:
10 10
10 A 250 V ~ or 10/250 ~ or ~ or
250 250
~
NOTE 2 Lines formed by the construction of the tool are not considered as part of the marking.
8.5 The marking specified in 8.1 shall be easily discernible when the connector is wired ready
for use.
NOTE The term "ready for use" does not imply that the connector is in engagement with an appliance inlet.
8.6 In non-reversible connectors, the contact positions shall be established by looking at the
engagement face of the connectors as shown in figure 1 and their disposition shall be as
follows:
earthing contact: upper central position;
line contact: lower right-hand position;
neutral contact: lower left-hand position.
In rewirable, non-reversible connectors, terminals shall be indicated as follows:
earthing terminal: the symbol or

neutral terminal: the letter N
In non-rewirable, non-reversible connectors, no marking of contacts is necessary, but cores
shall be connected as specified in 22.1.
Appliance inlets, other than those integrated or incorporated in an appliance or equipment, for
use with connectors according to this subclause, shall have terminal markings to correspond
with this subclause.
The marking symbol or letters shall not be placed on screws, removable washers or other
removable parts.
NOTE The requirement concerning the marking of terminals and the connection of conductors has been
introduced to take into account those countries which already require a polarized supply system and with regard to
a possible future introduction of a unified plug and socket-outlet system, which will be to a great extent a polarized
system. It is recommended that this requirement be taken into account already now in countries which at present
have no polarized plug and socket-outlet system.

60320-1 © IEC:2001+A1:2007 – 15 –
Rewirable connectors shall be supplied with the following instructions:
a) a diagram illustrating the method of connection of the conductors, in particular the (excess)
length of the earthing conductor and the operation of the cord anchorage;
b) a full-scale diagram showing the length of sleeving and insulation to be stripped back;
c) the sizes and types of suitable cords.
NOTE 1 It is essential that the connection of the earthing conductor is shown in an instructive way, preferably with
sketches.
NOTE 2 These instructions need not follow connectors supplied directly to an equipment manufacturer.

8.7 The markings required by the standard shall be easily legible and durable.
8.8 Compliance with the requirements of 8.1 to 8.7 is checked by inspection and by rubbing
the marking by hand for 15 s with a piece of cloth soaked with water and again for 15 s with a
piece of cloth soaked with petroleum spirit.
After this test and all non-destructive tests of the standard, the marking shall remain legible. It
shall not be easily possible to remove labels and they shall not show curling.
NOTE 1 The type reference may be marked in paint or ink, if necessary, protected by varnish.
NOTE 2 The petroleum spirit used should consist of a solvent hexane with a content of aromatics of maximum
0,1 volume percentage, a kauri-butanol value of 29, an initial boiling point of approximately 65 °C, a dry-point of
approximately 69 °C and a density of approximately 0,68 g/cm .

9 Dimensions and compatibility
9.1 Appliance couplers shall comply with the appropriate standard sheets as specified below,
except as permitted by 9.6:
0,2 A 250 V appliance coupler for class II equipment and cold conditions:
– connector. sheet C1
– appliance inlet. sheet C2

2,5 A 250 V appliance coupler for class I equipment and cold conditions:
– connector. sheet C5
– appliance inlet. sheet C6

2,5 A 250 V appliance coupler for class II equipment and cold conditions:
– connector. sheet C7
– appliance inlet, standard type. sheets C8 and C8A
– appliance inlet, for alternative connection of the equipment
to two different mains voltages. sheet C8B

6 A 250 V appliance coupler for class II equipment and cold conditions:
– connector. sheet C9
– appliance inlet. sheet C10

– 16 – 60320-1 © IEC:2001+A1:2007
10 A 250 V appliance coupler for class I equipment and cold conditions:
– connector. sheet C13
– appliance inlet. sheet C14

10 A 250 V appliance coupler for class I equipment and hot conditions:
– connector. sheet C15
– appliance inlet. sheet C16

10 A 250 V appliance coupler for class I equipment and very hot conditions:
– connector. sheet C15A
– appliance inlet. sheet C16A

10 A 250 V appliance coupler for class II equipment and cold conditions:
– connector.
...