GB/T 12113-2023Methods of measurement of touch current and protective conductor current (English PDF)

Foreword

This Document was drafted as per the rules specified in GB/T 1.1-2020 Directives for

Standardization - Part 1.Rules for the Structure and Drafting of Standardizing Documents.

This Document replaced GB/T 12113-2003 Methods of Measurement of Touch Current and

Protective Conductor Current. Compared with GB/T 12113-2003, the major technical changes

of this Document are as follows besides the structural adjustments and editorial modifications.

--- Delete the understanding based on the current effects; reduce the reference of quotation

of use conditions of "grippable components" (see 3.4 and Annex H of 2003 Edition).

This Document equivalently adopted IEC 60990.2016 Methods of Measurement of Touch

Current and Protective Conductor Current.

Please note some contents of this Document may involve patents. The issuing agency of this

Document shall not assume the responsibility to identify these patents.

This Document was proposed by and under the jurisdiction of Ministry of Industry and

Information Technology of the People's Republic of China.

Drafting organizations of this Document. China Electronics Standardization Institute; Vertiv

Co., Ltd.; Beijing Xiaomi Mobile Software Co., Ltd.; Vivo Mobile Communications Co., Ltd.;

Zhongshan Baolijin Electronic Co., Ltd.; Unisyue Technologies Co., Ltd.; Qingdao Haier

Multimedia Co., Ltd.; Shenzhen Skyworth Digital Technology Co., Ltd.; Ningbo Bull Digital

Technology Co., Ltd.; Hisense Group Holdings Co., Ltd.; China National Accreditation Service

for Conformity Assessment; OPPO Guangdong Mobile Communications Co., Ltd.; Shenzhen

SaiXi Information Technology Co., Ltd.; Dongguan Aohai Technology Co., Ltd.; CESI

(Guangzhou) Standards & Testing Institute Co., Ltd.; Xiamen Hanin Electronic Technology

Co., Ltd.; and Honor Device Co., Ltd.

Chief drafting staffs of this Document. Li Yuzhen, Chen Di, Wang Ying, He Penglin, Liu

Yunzhu, Chan Xiaoxiao, Zhang Guanghui, Wang Houxue, Lin Junrong, Wang Zongqiang,

Wang Qingwang, Liu Fenglei, Yu Mouzhan, Cui Zhilong, Song Wenping, Chen Shaoyi, Liu

Nianfeng, Guo Xiugen, Zhou Hui, Bai Zhongtao, Huang Junying, Wu Chunyu, Lin Jingyi, and

Li Jianmin.

This Document was first-time published in 1996; first-time revised in 2003; and it is second-

time revised hereby.

Methods of Measurement of Touch Current and Protective

Conductor Current

1 Scope

This Standard defines measurement methods for

- d.c. or a.c. current of sinusoidal or non-sinusoidal waveform, which could flow through

the human body, and

- current flowing through a protective conductor.

The measuring methods recommended for TOUCH CURRENT are based upon the possible

effects of current flowing through a human body. In this standard, measurements of current

through networks representing the impedance of the human body are referred to as

measurements of TOUCH CURRENT. These networks are not necessarily valid for the bodies

of animals.

The specification or implication of specific limit values is not within the scope of this standard.

IEC 60479 series provide information regarding the effects of current passing through the

human body from which limit values may be derived.

This standard is applicable to all classes of EQUIPMENT, according to IEC 61140.

The methods of measurement in this standard are not intended to be used for

- TOUCH CURRENTS having less than 1 s duration,

- patient currents as defined in IEC 60601-1,

- a.c. at frequencies below 15 Hz, and

- currents above those chosen for ELECTRIC BURN limits.

This basic safety publication is primarily intended for use by technical committees in the

preparation of standards in accordance with the principles laid down in IEC Guide 104 and

ISO/IEC Guide 51.It is not intended for use by manufacturers or certification bodies

independent of product standards.

One of the responsibilities of a technical committee is, wherever applicable, to make use of

basic safety publications in the preparation of its publications. The requirements, test methods

or test conditions of this basic safety publication only apply when specifically referred to or

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