GB/T 2099.1-2021 Plugs and socket-outlets for household and similar purposes—Part 1: General requirements
1 Scope
This document specifies the technical requirements for the marking, protection against electric shock, structure, electrical performance and mechanical performance of plugs and socket-outlets for household and similar purposes.
This document applies to plugs and fixed or portable socket-outlets for A.C. only, with or without earthing contact, with a rated voltage greater than 50 V but not exceeding 440 V and a rated current not exceeding 32 A, intended for household and similar purposes, either indoors or outdoors.
The rated current is limited to 16A maximum for fixed socket-outlets provided with screwless terminals.
This standard does not cover requirements for flush mounting boxes: however, it covers only those requirements for surface-type mounting boxes which are necessary for the tests on the socket-outlet.
Note 1: General requirements for mounting boxes are given in GB/T 17466.
This standard also applies to plugs which are a part of cord sets, to plugs and portable socket-outlets which are a part of cord extension sets and to plugs and socket-outlets which are a component of an appliance, unless otherwise stated in the standard for the relevant appliance.
This document is not applicable to:
——plugs, socket-outlets and couplers for industrial purposes;
——appliance couplers;
——plugs, fixed and portable socket-outlets for ELV;
Note 2: ELV values are specified in GB/T 16895.21.
——fixed socket-outlets combined with fuses, automatic switches, etc.
Note 3: Socket-outlets with pilot lights are allowed provided that pilot lights comply with the relevant standard, if any.
Plugs and socket-outlets complying with this standard shall be suitable for use at ambient temperatures not normally exceeding +40°C, but their average over a period of 24h does not exceed +35°C, with a lower limit of the ambient air temperature of –5°C.
Socket-outlets complying with this standard are only suitable for incorporation or mounting in equipment in such a way and in such a place that it is unlikely that the surrounding temperature exceeds 35°C.
In locations where special conditions prevail, such as in ships, vehicles and the like and in hazardous locations, for example where explosions are liable to occur, special constructions may be required.
2 Normative reference
The following documents contain provisions which, through reference in this text, constitute provisions 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.
GB/T 1002 Single phase plugs and socket-outlets for household and similar purposes — Types, basic parameters and dimensions
GB/T 1003 Three phase plugs and socket-outlets for household and similar purposes — Types, basic parameters and dimensions
GB/T 2423.4 Environmental testing for electric and electronic products — Part 2: Test method — Test Db: Damp heat, cyclic (12h+12h cycle) (GB/T 2423.4-2008, IEC 60668-2-30: 2005, IDT)
GB/T 2423.7 Environmental testing — Part 2: Test methods — Test Ec: Rough handling shocks, primarily for equipment-type specimens (GB/T 2423.7: 2018，IEC 60068-2-31: 2008, IDT)
GB/T 2423.55-2006 Environmental testing for electric and electronic products — Part 2: Test methods — Test Eh: Hammer tests (IEC 60068-2-75: 1997, IDT);
GB/T 2900.83 Electrotechnical terminology — Electrical and magnetic devices (GB/T 2900.83-2008, IEC 60050-151: 2001, IDT)
GB/T 4207 Method for the determination of the proof and the comparative tracking indices of solid insulating materials (GB/T, 4207-2012, IEC 60112: 2009, IDT)
GB/T 4208-2017 Degrees of protection provided by enclosure (IP code) (IEC 60529:2013, IDT)
GB/T 5013 (all parts) Rubber insulated cables of rated voltages up to and including 450/750V
GB/T 5023 (all parts) Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V
GB/T 5169.10 Fire hazard testing for electric and electronic products — Part 10: Glowing/hot-wire based test methods — Glow-wire apparatus and common test procedure (GB/T 5169.10-2006, IEC 60695-2-10: 2013, IDT)
GB/T 5169.11-2006 Fire hazard testing for electric and electronic products — Part 11: Glowing/hot-wire based test methods — Glow-wire flammability test method for end-products (GWEPT) (GB/T 5169.11-2017, IEC 60695-2-11: 2014, IDT)
GB/T 5465.2 Graphical symbols for use on electrical equipment — Part 2: Graphical symbols (GB/T 5465.2-2008, IEC 60417 DB: 2007, IDT)
GB 15092 (all parts) Switches for appliances [IEC 61058 (all parts)]
GB/T 15092.1 Switches for appliances — Part 1:General requirements (GB/T 15092.1—2020，IEC 61058-1：2016，IDT)
GB/T 16842—2016 Protection of persons and equipment by enclosures — Probe for verification (IEC 61032:1997, IDT)
GB 16915 (all parts) Switches for household and similar fixed electrical installations
GB/T 17194-1997 Conduits for electrical purposes — Outside diameters of conduits for electrical installations and threads of conduits and fittings (eqv IEC 60423: 1993)
GB/T 20002.4-2015 Drafting for special aspects in standards — Part 4: Safety aspects for their inclusion in standards
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2900.83 and the following apply.
Note 1: Where the terms "voltage" and "current" are used, they imply r.m.s. values, unless otherwise specified.
Note 2: Throughout this standard the word "earthing" is used for “protective earthing”.
Note 3: The term "accessory" is used as a general term covering plugs and socket-outlets; the term "portable accessory" covers plugs and portable socket-outlets. Examples of the use of accessories are shown in Figure 1 a).
Note 4: Throughout this standard the term "socket-outlet" covers both fixed and portable socket-outlets, except where the reference is specific to one type or the other.
3.1
plug
accessory intended for frequent use by ordinary persons, having pins designed to engage
with the contacts of a socket-outlet, also incorporating means for the electrical connection and mechanical retention of one flexible cable
Note: For special purposes such as lighting chains (see also GB 7000.9), two or three single-core cables can be connected within the plug.
Note: See 195-04-03 in GB/T 2900.73-2008 for “ordinary persons”.
3.2
socket-outlet
accessory intended for frequent use by ordinary persons, having socket contacts designed to engage with the pins of a plug and having terminals or terminations for the connection of cable
3.3
fixed socket-outlet
socket-outlet intended to be connected to fixed wiring
3.4
portable socket-outlet
socket-outlet intended to be connected to or integral with one flexible cable and which can
easily be moved from one place to another while connected to the supply
3.5
multiple socket-outlet
combination of two or more socket-outlets
Note: An example is shown in Figure 1 b).
3.6
socket-outlet for appliances
socket-outlet intended to be built in, or fixed to, appliances
3.7
rewirable plug or rewirable portable socket-outlet
accessory so constructed that the flexible cable can be replaced
3.8
non-rewirable plug or non-rewirable portable socket-outlet
accessory so constructed that it forms a complete unit with the flexible cable after connection and assembly by the manufacturer of the accessory (see 14.1)
3.9
moulded-on accessory
non-rewirable portable accessory, the manufacture of which is completed by insulating material moulded around pre-assembled component parts and the terminations for the flexible cable
[Source: GB/T 2900.70-2008, 442-01-14, modified]
3.10
mounting box
box intended for mounting in or on a wall, floor or ceiling, etc., for flush or surface application, intended for use with fixed socket-outlet (s)
3.11
cord set
assembly consisting of one flexible cable fitted with one plug and one single connector,
intended for the connection of an electrical appliance to the electrical supply
3.12
cord extension set
assembly consisting of one flexible cable fitted with one plug and one single or multiple
portable socket-outlet
3.13
terminal
insulated or non-insulated connecting device intended for reusable electrical connection of the external conductors
3.14
termination
insulated or non-insulated connecting device intended for non-reusable electrical connection of the external conductors
Foreword vi
1 Scope
2 Normative reference
3 Terms and definitions
4 General requirements
5 General remarks on tests
6 Ratings
7 Classification
8 Marking
9 Checking of dimensions
10 Protection against electric shock
11 Provision for earthing
12 Terminals and terminations
13 Construction of fixed socket-outlets
14 Construction of plugs and portable socket-outlets
15 Interlocked socket-outlets
16 Resistance to ageing, protection provided by enclosures, and resistance to humidity
17 Insulation resistance and electric strength
18 Operation of earthing contacts
19 Temperature rise
20 Breaking capacity
21 Normal operation
22 Force necessary to withdraw the plug
23 Flexible cables and their connection
24 Mechanical strength
25 Resistance to heat
26 Screws, current-carrying parts and connections
27 Creepage distances, clearances and distances through sealing compound
28 Resistance of insulating material to abnormal heat, to fire and to tracking
29 Resistance to rusting
30 Additional tests on pins provided with insulating sleeves
Annex A (Normative) Safety-related routine tests for portable accessories with as-delivered conductors (protection against electric shock and correct polarity)
Annex B (Normative) List of specimens required for test
Annex C (Informative) Alternative gripping tests
Annex D (Normative) Switches incorporated in portable socket-outlets
Annex E (Informative) Changes planned for the future in order to align IEC 60884-1 with the requirements of IEC 60228, IEC 60998 and IEC 6
Bibliography
Figure 1 Example of accessories
Figure 2 Pillar terminals
Figure 3 Screw terminals and stud terminals
Figure 4 Saddle terminals
Figure 5 Mantle terminals
Figure 6 Example of thread-forming screw
Figure 7 Example of thread-cutting screw
Figure 8 Arrangement for compression test of
Figure 9 Probe for checking non-accessibility of live parts, through shutters
Figure 10 Probe for checking non-accessibility of live parts, through shutters, and of live parts of socket-outlets with increased protection
Figure 11 Device for checking damage to conductors
Figure 12 Schematic diagram for deflection test
Figure 13 Device for checking the resistance to lateral strain
Figure 14 Device for testing non-solid pins
Figure 15 Test wall in accordance with the requirements of 16.
Figure 16 Apparatus for breaking capacity and normal operation test
Figure 17 Circuit diagrams for breaking capacity and normal operation tests
Figure 18 Apparatus for verification of maximum withdrawal force
Figure 19 Gauge for the verification of minimum withdrawal force
Figure 20 Apparatus for testing cord retention
Figure 21 Apparatus for flexing test
Figure 22 Void
Figure 23 Void
Figure 24 Void
Figure 25 Void
Figure 26 Sketches showing the application of the blow according to table
Figure 27 Apparatus for impact test at low temperature of
Figure 28 Apparatus for abrasion test on insulating sleeves of plug pins
Figure 29 Apparatus for mechanical strength test on multiple portable socket-outlets
Figure 30 Test apparatus to verify the fixation of pins in the body of the plug
Figure 31 Test apparatus for covers or cover-plates
Figure 32 Gauge (thickness about 2 mm) for the verification of the outline of covers or cover-plates
Figure 33 Examples of application of the gauge of Figure 32 on covers fixed without screws on a mounting surface or supporting surface
Figure 34 Examples of application of the gauge of Figure 32 in accordance with the requirements of 2
Figure 35 Gauge for verification of grooves, holes and reverse tapers
Figure 36 Sketch showing the direction of application of the gauge of Figure
Figure 37 Ball pressure test apparatus
Figure 38 Apparatus for compression test for the verification of resistance to heat of
Figure 39 Diagrammatic representation of 28.
Figure 40 Apparatus for testing resistance to abnormal heat of insulating sleeves of plug pins
Figure 41 Apparatus for pressure test at high temperature
Figure 42 Impact test apparatus on pins provided with insulating sleeves
Figure 43 Test procedure for normal operation (see Clause 21)
Figure 44 Schematic diagram of clamping elements for the temperature rise test of Clause
Figure 45 Examples of membranes and grommets
Figure 46 Verification of the requirements of
Figure C. 1 Reference plug for gripping test
Figure C. 2 Example of the test apparatus for plug gripping test
Table 1 Preferred combinations of types and ratings
Table 2 Gauge tolerances
Table 3 Relationship between rated current and connectable nominal cross-sectional areas of copper conductors
Table 4 Values for pull test for screw-type terminals
Table 5 Composition of conductors
Table 6 Tightening torques for the verification of the mechanical strength of screw-type terminals
Table 7 Relationship between rated current and connectable cross-sectional areas of copper conductors for screwless terminals
Table 8 Value for pull test for screwless-type terminals
Table 9 Values for flexing under mechanical load test for copper conductors
Table 10 Test current for the verification of electrical and thermal stresses in normal use for screwless terminals
Table 11 Nominal cross-sectional areas of rigid copper conductors for deflection test of screwless terminals
Table 12 Deflection test forces for screwless terminals
Table 13 Forces to be applied to covers, cover-plates or actuating members whose fixing is not dependent on screws
Table 14 External cable dimension limits for surface-type socket-outlets
Table 15 Nominal cross-sectional areas of copper conductors for the temperature-rise test
Table 16 Maximum and minimum withdrawal force for plugs and socket-outlets
Table 17 External dimensions of flexible cables to be accommodated by cord anchorages
Table 18 Torque test values for cord anchorages of flexible cables
Table 19 Maximum dimensions of flexible cables to be accommodated in rewirable accessories
Table 20 Relationship between rating of accessories, nominal cross-sectional areas of test conductors and test currents for the tests of temperature rise (Clause 19) and normal operation (Clause 21)
Table 21 Height of fall for impact tests
Table 22 Torque test values for glands
Table 23 Resistance to heat of different types or parts of accessories
Table 24 Creepage distances, clearances and distances through insulating sealing compound
Table 25 Relationship between rated current and connectable nominal cross-sectional areas of copper conductors
Table 26 Relationship between pull force and cross-sectional area
Table 27 Composition of conductors
Table 28 Tightening torque for the verification of the mechanical strength of screw-type terminals
Table 29 Relationship between rated current and connectable cross-sectional areas of copper conductors for screwless terminals
Table A. 1 Diagrammatic representation of routine tests to be applied to portable accessories with as-delivered conductors
Table B. 1 List of specimens required for test
GB/T 2099.1-2021 Plugs and socket-outlets for household and similar purposes—Part 1: General requirements
1 Scope
This document specifies the technical requirements for the marking, protection against electric shock, structure, electrical performance and mechanical performance of plugs and socket-outlets for household and similar purposes.
This document applies to plugs and fixed or portable socket-outlets for A.C. only, with or without earthing contact, with a rated voltage greater than 50 V but not exceeding 440 V and a rated current not exceeding 32 A, intended for household and similar purposes, either indoors or outdoors.
The rated current is limited to 16A maximum for fixed socket-outlets provided with screwless terminals.
This standard does not cover requirements for flush mounting boxes: however, it covers only those requirements for surface-type mounting boxes which are necessary for the tests on the socket-outlet.
Note 1: General requirements for mounting boxes are given in GB/T 17466.
This standard also applies to plugs which are a part of cord sets, to plugs and portable socket-outlets which are a part of cord extension sets and to plugs and socket-outlets which are a component of an appliance, unless otherwise stated in the standard for the relevant appliance.
This document is not applicable to:
——plugs, socket-outlets and couplers for industrial purposes;
——appliance couplers;
——plugs, fixed and portable socket-outlets for ELV;
Note 2: ELV values are specified in GB/T 16895.21.
——fixed socket-outlets combined with fuses, automatic switches, etc.
Note 3: Socket-outlets with pilot lights are allowed provided that pilot lights comply with the relevant standard, if any.
Plugs and socket-outlets complying with this standard shall be suitable for use at ambient temperatures not normally exceeding +40°C, but their average over a period of 24h does not exceed +35°C, with a lower limit of the ambient air temperature of –5°C.
Socket-outlets complying with this standard are only suitable for incorporation or mounting in equipment in such a way and in such a place that it is unlikely that the surrounding temperature exceeds 35°C.
In locations where special conditions prevail, such as in ships, vehicles and the like and in hazardous locations, for example where explosions are liable to occur, special constructions may be required.
2 Normative reference
The following documents contain provisions which, through reference in this text, constitute provisions 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.
GB/T 1002 Single phase plugs and socket-outlets for household and similar purposes — Types, basic parameters and dimensions
GB/T 1003 Three phase plugs and socket-outlets for household and similar purposes — Types, basic parameters and dimensions
GB/T 2423.4 Environmental testing for electric and electronic products — Part 2: Test method — Test Db: Damp heat, cyclic (12h+12h cycle) (GB/T 2423.4-2008, IEC 60668-2-30: 2005, IDT)
GB/T 2423.7 Environmental testing — Part 2: Test methods — Test Ec: Rough handling shocks, primarily for equipment-type specimens (GB/T 2423.7: 2018，IEC 60068-2-31: 2008, IDT)
GB/T 2423.55-2006 Environmental testing for electric and electronic products — Part 2: Test methods — Test Eh: Hammer tests (IEC 60068-2-75: 1997, IDT);
GB/T 2900.83 Electrotechnical terminology — Electrical and magnetic devices (GB/T 2900.83-2008, IEC 60050-151: 2001, IDT)
GB/T 4207 Method for the determination of the proof and the comparative tracking indices of solid insulating materials (GB/T, 4207-2012, IEC 60112: 2009, IDT)
GB/T 4208-2017 Degrees of protection provided by enclosure (IP code) (IEC 60529:2013, IDT)
GB/T 5013 (all parts) Rubber insulated cables of rated voltages up to and including 450/750V
GB/T 5023 (all parts) Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V
GB/T 5169.10 Fire hazard testing for electric and electronic products — Part 10: Glowing/hot-wire based test methods — Glow-wire apparatus and common test procedure (GB/T 5169.10-2006, IEC 60695-2-10: 2013, IDT)
GB/T 5169.11-2006 Fire hazard testing for electric and electronic products — Part 11: Glowing/hot-wire based test methods — Glow-wire flammability test method for end-products (GWEPT) (GB/T 5169.11-2017, IEC 60695-2-11: 2014, IDT)
GB/T 5465.2 Graphical symbols for use on electrical equipment — Part 2: Graphical symbols (GB/T 5465.2-2008, IEC 60417 DB: 2007, IDT)
GB 15092 (all parts) Switches for appliances [IEC 61058 (all parts)]
GB/T 15092.1 Switches for appliances — Part 1:General requirements (GB/T 15092.1—2020，IEC 61058-1：2016，IDT)
GB/T 16842—2016 Protection of persons and equipment by enclosures — Probe for verification (IEC 61032:1997, IDT)
GB 16915 (all parts) Switches for household and similar fixed electrical installations
GB/T 17194-1997 Conduits for electrical purposes — Outside diameters of conduits for electrical installations and threads of conduits and fittings (eqv IEC 60423: 1993)
GB/T 20002.4-2015 Drafting for special aspects in standards — Part 4: Safety aspects for their inclusion in standards
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2900.83 and the following apply.
Note 1: Where the terms "voltage" and "current" are used, they imply r.m.s. values, unless otherwise specified.
Note 2: Throughout this standard the word "earthing" is used for “protective earthing”.
Note 3: The term "accessory" is used as a general term covering plugs and socket-outlets; the term "portable accessory" covers plugs and portable socket-outlets. Examples of the use of accessories are shown in Figure 1 a).
Note 4: Throughout this standard the term "socket-outlet" covers both fixed and portable socket-outlets, except where the reference is specific to one type or the other.
3.1
plug
accessory intended for frequent use by ordinary persons, having pins designed to engage
with the contacts of a socket-outlet, also incorporating means for the electrical connection and mechanical retention of one flexible cable
Note: For special purposes such as lighting chains (see also GB 7000.9), two or three single-core cables can be connected within the plug.
Note: See 195-04-03 in GB/T 2900.73-2008 for “ordinary persons”.
3.2
socket-outlet
accessory intended for frequent use by ordinary persons, having socket contacts designed to engage with the pins of a plug and having terminals or terminations for the connection of cable
3.3
fixed socket-outlet
socket-outlet intended to be connected to fixed wiring
3.4
portable socket-outlet
socket-outlet intended to be connected to or integral with one flexible cable and which can
easily be moved from one place to another while connected to the supply
3.5
multiple socket-outlet
combination of two or more socket-outlets
Note: An example is shown in Figure 1 b).
3.6
socket-outlet for appliances
socket-outlet intended to be built in, or fixed to, appliances
3.7
rewirable plug or rewirable portable socket-outlet
accessory so constructed that the flexible cable can be replaced
3.8
non-rewirable plug or non-rewirable portable socket-outlet
accessory so constructed that it forms a complete unit with the flexible cable after connection and assembly by the manufacturer of the accessory (see 14.1)
3.9
moulded-on accessory
non-rewirable portable accessory, the manufacture of which is completed by insulating material moulded around pre-assembled component parts and the terminations for the flexible cable
[Source: GB/T 2900.70-2008, 442-01-14, modified]
3.10
mounting box
box intended for mounting in or on a wall, floor or ceiling, etc., for flush or surface application, intended for use with fixed socket-outlet (s)
3.11
cord set
assembly consisting of one flexible cable fitted with one plug and one single connector,
intended for the connection of an electrical appliance to the electrical supply
3.12
cord extension set
assembly consisting of one flexible cable fitted with one plug and one single or multiple
portable socket-outlet
3.13
terminal
insulated or non-insulated connecting device intended for reusable electrical connection of the external conductors
3.14
termination
insulated or non-insulated connecting device intended for non-reusable electrical connection of the external conductors
Contents of GB/T 2099.1-2021
Foreword vi
1 Scope
2 Normative reference
3 Terms and definitions
4 General requirements
5 General remarks on tests
6 Ratings
7 Classification
8 Marking
9 Checking of dimensions
10 Protection against electric shock
11 Provision for earthing
12 Terminals and terminations
13 Construction of fixed socket-outlets
14 Construction of plugs and portable socket-outlets
15 Interlocked socket-outlets
16 Resistance to ageing, protection provided by enclosures, and resistance to humidity
17 Insulation resistance and electric strength
18 Operation of earthing contacts
19 Temperature rise
20 Breaking capacity
21 Normal operation
22 Force necessary to withdraw the plug
23 Flexible cables and their connection
24 Mechanical strength
25 Resistance to heat
26 Screws, current-carrying parts and connections
27 Creepage distances, clearances and distances through sealing compound
28 Resistance of insulating material to abnormal heat, to fire and to tracking
29 Resistance to rusting
30 Additional tests on pins provided with insulating sleeves
Annex A (Normative) Safety-related routine tests for portable accessories with as-delivered conductors (protection against electric shock and correct polarity)
Annex B (Normative) List of specimens required for test
Annex C (Informative) Alternative gripping tests
Annex D (Normative) Switches incorporated in portable socket-outlets
Annex E (Informative) Changes planned for the future in order to align IEC 60884-1 with the requirements of IEC 60228, IEC 60998 and IEC 6
Bibliography
Figure 1 Example of accessories
Figure 2 Pillar terminals
Figure 3 Screw terminals and stud terminals
Figure 4 Saddle terminals
Figure 5 Mantle terminals
Figure 6 Example of thread-forming screw
Figure 7 Example of thread-cutting screw
Figure 8 Arrangement for compression test of
Figure 9 Probe for checking non-accessibility of live parts, through shutters
Figure 10 Probe for checking non-accessibility of live parts, through shutters, and of live parts of socket-outlets with increased protection
Figure 11 Device for checking damage to conductors
Figure 12 Schematic diagram for deflection test
Figure 13 Device for checking the resistance to lateral strain
Figure 14 Device for testing non-solid pins
Figure 15 Test wall in accordance with the requirements of 16.
Figure 16 Apparatus for breaking capacity and normal operation test
Figure 17 Circuit diagrams for breaking capacity and normal operation tests
Figure 18 Apparatus for verification of maximum withdrawal force
Figure 19 Gauge for the verification of minimum withdrawal force
Figure 20 Apparatus for testing cord retention
Figure 21 Apparatus for flexing test
Figure 22 Void
Figure 23 Void
Figure 24 Void
Figure 25 Void
Figure 26 Sketches showing the application of the blow according to table
Figure 27 Apparatus for impact test at low temperature of
Figure 28 Apparatus for abrasion test on insulating sleeves of plug pins
Figure 29 Apparatus for mechanical strength test on multiple portable socket-outlets
Figure 30 Test apparatus to verify the fixation of pins in the body of the plug
Figure 31 Test apparatus for covers or cover-plates
Figure 32 Gauge (thickness about 2 mm) for the verification of the outline of covers or cover-plates
Figure 33 Examples of application of the gauge of Figure 32 on covers fixed without screws on a mounting surface or supporting surface
Figure 34 Examples of application of the gauge of Figure 32 in accordance with the requirements of 2
Figure 35 Gauge for verification of grooves, holes and reverse tapers
Figure 36 Sketch showing the direction of application of the gauge of Figure
Figure 37 Ball pressure test apparatus
Figure 38 Apparatus for compression test for the verification of resistance to heat of
Figure 39 Diagrammatic representation of 28.
Figure 40 Apparatus for testing resistance to abnormal heat of insulating sleeves of plug pins
Figure 41 Apparatus for pressure test at high temperature
Figure 42 Impact test apparatus on pins provided with insulating sleeves
Figure 43 Test procedure for normal operation (see Clause 21)
Figure 44 Schematic diagram of clamping elements for the temperature rise test of Clause
Figure 45 Examples of membranes and grommets
Figure 46 Verification of the requirements of
Figure C. 1 Reference plug for gripping test
Figure C. 2 Example of the test apparatus for plug gripping test
Table 1 Preferred combinations of types and ratings
Table 2 Gauge tolerances
Table 3 Relationship between rated current and connectable nominal cross-sectional areas of copper conductors
Table 4 Values for pull test for screw-type terminals
Table 5 Composition of conductors
Table 6 Tightening torques for the verification of the mechanical strength of screw-type terminals
Table 7 Relationship between rated current and connectable cross-sectional areas of copper conductors for screwless terminals
Table 8 Value for pull test for screwless-type terminals
Table 9 Values for flexing under mechanical load test for copper conductors
Table 10 Test current for the verification of electrical and thermal stresses in normal use for screwless terminals
Table 11 Nominal cross-sectional areas of rigid copper conductors for deflection test of screwless terminals
Table 12 Deflection test forces for screwless terminals
Table 13 Forces to be applied to covers, cover-plates or actuating members whose fixing is not dependent on screws
Table 14 External cable dimension limits for surface-type socket-outlets
Table 15 Nominal cross-sectional areas of copper conductors for the temperature-rise test
Table 16 Maximum and minimum withdrawal force for plugs and socket-outlets
Table 17 External dimensions of flexible cables to be accommodated by cord anchorages
Table 18 Torque test values for cord anchorages of flexible cables
Table 19 Maximum dimensions of flexible cables to be accommodated in rewirable accessories
Table 20 Relationship between rating of accessories, nominal cross-sectional areas of test conductors and test currents for the tests of temperature rise (Clause 19) and normal operation (Clause 21)
Table 21 Height of fall for impact tests
Table 22 Torque test values for glands
Table 23 Resistance to heat of different types or parts of accessories
Table 24 Creepage distances, clearances and distances through insulating sealing compound
Table 25 Relationship between rated current and connectable nominal cross-sectional areas of copper conductors
Table 26 Relationship between pull force and cross-sectional area
Table 27 Composition of conductors
Table 28 Tightening torque for the verification of the mechanical strength of screw-type terminals
Table 29 Relationship between rated current and connectable cross-sectional areas of copper conductors for screwless terminals
Table A. 1 Diagrammatic representation of routine tests to be applied to portable accessories with as-delivered conductors
Table B. 1 List of specimens required for test
