GB 1002-2024 PDF English
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| GB 1002-2024 | English | 485 |
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Single phase plugs and socket-outlets for household and similar purposes - Types, basic parameters and dimensions
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| GB/T 1002-2021 | English | 215 |
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Single phase plugs and socket-outlets for household and similar purposes - Types, basic parameters and dimensions
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| GB 1002-2008 | English | 85 |
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[GB/T 1002-2008] Single phase plugs and socket-outlets for household and similar purposes. Types, basic parameters and dimensions [Quasi-Official / Academic version - translated by Chinese Institute]
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| GB 1002-1996 | English | 85 |
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Single phase plugs and socket-outlets for household and similar purposes. Types, basic parameters and dimensions
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| GB 1002-1980 | English | RFQ |
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Types, basic parameters and dimensions of single phase plugs and sockets
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GB 1002-2024: Single phase plugs and socket-outlets for household and similar purposes - Types, basic parameters and dimensions
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB1002-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.120.30
CCS K 30
Replacing GB/T 1002-2021
Single Phase Plugs and Socket-outlets for Household and
Similar Purposes - Types, Basic Parameters and Dimensions
Issued on. JULY 24, 2024
Implemented on. AUGUST 1, 2025
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative References... 5
3 Terms and Definitions... 6
4 Technical Requirements... 6
5 Test Methods... 10
6 Implementation of Standard... 12
Bibliography... 30
Foreword
This document was drafted in accordance with the rules provided in GB/T 1.1-2020 Directives
for Standardization - Part 1.Rules for the Structure and Drafting of Standardizing Documents.
This document serves as a replacement of GB/T 1002-2021 Single Phase Plugs and Socket-
outlets for Household and Similar Purposes - Types, Basic Parameters and Dimensions. In
comparison with GB/T 1002-2021, apart from structural adjustments and editorial
modifications, the main technical changes are as follows.
---The scope of application of this Standard is modified (see Chapter 1; Chapter 1 of
Version 2021);
---The definition of direct plug-in equipment is added (see 3.1);
---The content of socket jack arrangement and combination (see 4.1.3) and an example of
the schematic diagram (see Figure 7) are added;
---The content of the position of the plug bush and the plug pin of two-pole grounded
socket-outlets is added (see 4.1.4);
---It is added that the single pin of a plug shall not undergo axial rotation that changes the
type and position (see 4.1.5);
---The requirements for the inner frame of the fixed pin of non-rewireable plug are added
(see 4.1.6);
---The requirements for the convex part of the plug mating surface and the measurement
requirements for the length of the plug pin are added (see 4.2.1);
---The requirements for the insulating sheath of the plug pin are modified (see 4.2.2; 4.2.2
of Version 2021);
---The content of single-phase two-pole ungrounded plug is modified (see 4.2.3; 4.2.3 of
Version 2021);
---The content of the plug for direct plug-in equipment is added (see 4.3);
---The requirements for the distance between the live plug bush of the socket-outlet and
the mating surface are modified (see 4.4.1; 4.3.1 of Version 2021);
---The minimum distance between the live plug bush and the mating surface in Figure 6 is
added (see Table 1);
---The depth of the plug pin that can be inserted into corresponding cavity of the socket
jack is added (see 4.4.3);
---The pin length measurement method for plugs of the direct plug-in equipment is added
(see 5.1);
---The pin bending test method is added (see 5.3);
---The roller drop test method is added (see 5.5);
---The implementation of the Standard in Chapter 6 is added (see Chapter 6);
---The thickness t and tolerance of the plug pin (see Figure 1 and Figure 3; Figure 1 and
Figure 3 of Version 2021), as well as the dimensions and tolerances of the
corresponding measuring gauge are modified (see Figure 12, Figure 13, Figure 23 and
Figure 24; Figure 13, Figure 14, Figure 15 and Figure 16 of Version 2021);
---An example of the shape of the pin end is added (see Figure 1 and Figure 3);
---The type, dimensions, measuring gauge and corresponding technical content of 32 A
plugs and socket-outlets are added (see Figure 5, Figure 6, Figure 14, Figure 18, Figure
21 and Figure 25);
---The dimensions of the measuring gauge are modified (see Figure 16, Figure 17, Figure
19, Figure 20 and Figure 22; Figure 8, Figure 9, Figure 10, Figure 11 and Figure 12 of
Version 2021).
Please be noted that certain content of this document may involve patents. The institution
issuing this document does not undertake the responsibility of identifying these patents.
This document was proposed by and shall be under the jurisdiction of Ministry of Industry and
Information Technology of the People’s Republic of China.
The issuing of the previous versions.
---Firstly issued in 1967 as GB 1002-1967, firstly revised in 1980, secondly revised in
1996, thirdly revised in 2008 and fourthly revised in 2021;
---This is the fifth revision. It is revised into a mandatory national standard.
Single Phase Plugs and Socket-outlets for Household and
Similar Purposes - Types, Basic Parameters and Dimensions
1 Scope
This document specifies the types, basic parameters and dimensions of single-phase plugs and
socket-outlets for household and similar purposes, and describes the corresponding test
methods.
This document is applicable to single phase plugs and socket-outlets for household and similar
purposes, with an AC frequency of 50 Hz, a rated voltage of 250 V and a rated current not
exceeding 32 A.
NOTE. examples of products, to which, the types and dimensions of this document are applicable
include.
---socket-outlets used in household scenarios;
---plugs provided with electrical equipment;
---plugs of direct plug-in equipment;
---fixed integrated AC-powered socket-outlets with a rated voltage of 220 V and for
conductive charging of electric vehicles;
---charging socket-outlets in centralized charging facilities for electric bicycles and electric
motorcycles.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB/T 1184-1996 Geometrical Tolerancing - Geometrical Tolerance for Features without
Individual Tolerance Indications
GB/T 2099.1-2021 Plugs and Socket-outlets for Household and Similar Purposes - Part 1.
General Requirements
GB/T 2099.3 Plugs and Socket-outlets for Household and Similar Purposes - Part 2-5.Particular
Requirements for Adaptors
GB/T 2900.70-2008 Electrotechnical Terminology - Electrical Accessories
3 Terms and Definitions
The terms and definitions defined in GB/T 2900.70-2008 and GB/T 2099.1-2021, and the
following are applicable to this document.
3.1 direct plug-in equipment
An equipment, in which, the power plug and the equipment shell constitute an integral part.
NOTE. examples of direct plug-in equipment include shavers with rechargeable batteries, night
lights mounted on electrical socket-outlets, plug-in transformers and power adapters, etc.
[source. GB 4943.1-2022, 3.3.3.1, modified]
4 Technical Requirements
4.1 General Requirements
4.1.1 Single phase plugs and socket-outlets for household and similar purposes are divided into
two basic types. two-pole ungrounded and two-pole grounded.
4.1.2 The types, basic parameters and dimensions of the single-phase plugs and socket-outlets
for household and similar purposes shall comply with the provisions of Figure 1 ~ Figure 6.
4.1.3 In addition to fixed socket-outlets, for mobile (portable) socket-outlets, converters and
appliance socket-outlets, arrangement and combination of the socket jack in Figure 2 and the
socket jack in Figure 4 are allowed, but the socket jack in Figure 2 and the socket jack in Figure
4 shall not overlap or be shared with each other. Figure 7 provides a schematic diagram.
NOTE 1.the arrangement and combination of socket jack here cannot be comprehended as adding
corresponding plug types.
NOTE 2.the schematic diagram in Figure 7 does not exclude other forms of combinations.
NOTE 3.examples of fixed socket-outlets include wall-mounted socket-outlets.
4.1.4 The position of the plug bush of two-pole grounded socket-outlets shall be such that when
facing the socket-outlets, the ground wire (E pole) is at the top, the neutral wire (N pole) is on
the left, and the phase wire (L pole) is on the right. The position of the pin of two-pole grounded
plugs shall correspond to that of the socket-outlets.
4.1.5 The single pin of a plug shall not undergo axial rotation that changes the type and position.
NOTE. axial rotation, for example, by twisting the pin, changes the two parallel-arranged pins of
the plug in Figure 1 to the position of the phase pole and neutral pole arrangement shown
in Figure 3.
4.1.6 The strength of the inner frame of the fixed pin of non-rewireable plug shall be able to
ensure the stability of the pin size, and the type and dimensions shall comply with the
requirements of the corresponding dimensional drawings.
4.2 Plugs
4.2.1 Plug shape
The shape of the plugs is not specified, but the distance between the root of the live pin of the
plugs and the edge of the plugs shall not be less than 6.5 mm.
NOTE 1.if there is an insulating sheath, then, take the metal pin after the insulating sheath is peeled
off as the root.
NOTE 2.if the mating surface of the plug is not a plane, then, from a plane that passes through the
highest point of the mating surface and is perpendicular to the axis of the plug, the line
that is offset 1 mm towards the direction of the plug body and intersects the surface of
the body is regarded as the edge of the plug. An example is the B value in Figure 8.
The protruding part of the plug mating surface shall not exceed 0.5 mm. The length of the plug
pin shall be measured from the vertical plane of the pin at the highest point of the plug mating
surface, till the top of the pin.
4.2.2 Insulating sheath of pin
4.2.3 Single phase two-pole ungrounded plug
The single phase two-pole ungrounded plug include
---plugs conforming to Figure 1;
---plugs with the same type, basic parameters and dimensions as the single phase two-pole
grounded plug in Figure 3, but without grounding function, and shall be made in a non-
rewireable form. The ground pin position in Figure 3 is used to install the protective
door drive insert. The drive insert is black in color, not connected to a ground wire, and
nor marked with a ground symbol. It is only used as a drive device to open the protective
door when plugged into the socket-outlet.
4.3 Additional Requirements for Plugs of Direct Plug-in Equipment
4.3.1 The type and dimensions of plugs of the direct plug-in equipment shall comply with the
requirements of this document.
4.3.2 The insulating sheath (if any) of the plugs of the direct plug-in equipment shall cover the
root of the metal part of the exposed pin.
There shall be no gap between the insulating sheath and the equipment shell, causing the metal
root of the live pin to be exposed. If in doubt, check through the test in 5.4.During the test, the
probe shall not touch the live pin.
4.3.3 When the plug of the direct plug-in equipment rotates as a whole, there should be locking
measures in the normal use position and shall satisfy the requirements for the plugs in this
document.
4.3.4 The plugs of the direct plug-in equipment shall be subject to the roller drop test of 5.5 in
normal use conditions.
After the test, the specimen shall not be damaged within the meaning of this document. After
calibration, it shall be normally plugged into a socket-outlet that complies with the requirements
of relevant standards, and shall satisfy.
---the metal pin shall not break;
---no parts are loose.
4.4 Socket-outlets
4.4.1 The distance K between the live plug bush of the socket-outlet and the mating surface is
as shown in Figure 11, and the value should not be less than the value specified in Table 1; and
shall pass the corresponding non-contact gauge tests in Figure 12, Figure 13 and Figure 14.
4.4.2 The distance between the grounding plug bush and the mating surface shall be not greater
than the distance between the live plug bush and the mating surface of the same socket-outlet
(Figure 4 and Figure 6).
4.4.3 The depth H of the plug pin that can be inserted into the corresponding cavity of the socket
jack shall be measured in accordance with the method provided in Figure 15.The value of H
should not be less than the value specified in Table 2.
5 Test Methods
5.1 For the inspection of the dimensions of single-phase plugs and socket-outlets for household
and similar purposes, the special-purpose measuring gauges specified in Figure 12 ~ Figure 14,
Figure 16 ~ Figure 25, and a vernier caliper with a division value not greater than 0.02 mm
shall be used. The dimensions of the rounded part at the end of the plug pin shall be measured
with an appropriate measuring instrument. The surface roughness of these measuring gauges is
all Ra 0.8, and the hardness is Rockwell hardness HRC58 ~ HRC62.The geometric tolerances
of the measuring gauges, such as. parallelism, perpendicularity and symmetry, shall comply
with the tolerance level H specified in GB/T 1184-1996.
For the plugs of the direct plug-in equipment, in accordance with the manufacturer’s
instructions, under the most unfavorable situation, directly insert the direct plug-in equipment
into the socket-outlet. After it stabilizes, measure the length of the pin.
5.2 The pin of the plug shall be able to pass the inspection of the corresponding measuring
gauges in Figure 16, Figure 17 and Figure 18.
5.3 Use 3 new plug samples to conduct the pin bending test in accordance with the following
method.
5.4 After normally inserting the direct plug-in equipment into the socket-outlet, use the steel
probe shown in Figure 10 of GB/T 2099.1-2021 to apply a force of 1 N to the root of the pin,
and use an electrical indicator with a voltage between 40 V ~ 50 V to display the contact status
of relevant components.
5.5 Use 3 new samples to carry out the roller drop test in 24.3 of GB/T 2099.1-2021 in
accordance with the normal use conditions. If the direct plug-in equipment is equipped with a
flexible cable, then, the free length of the flexible cable extending from the direct plug-in
equipment is approximately 100 mm.
6 Implementation of Standard
6.1 For the types and dimensions of products that are produced or imported before the date of
implementation of this document, and that implement or refer to this document, the
implementation will start from the 13th month of the date of implementation of this document.
6.2 The requirement that the live pin of the plug shall have an insulating sheath (4.2.2) shall be
implemented starting from the 25th month of the date of implementation of this document.
Description of indexes.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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