GB/T 12113-2003: Methods of measurement of touch current and protective conductor current

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Scope

This Standard defines measurement methods for
- d.c. or a.c. 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 60479-1 provides 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
60536.
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 GB 9706.1,
- a.c. at frequencies below 15 Hz,
- a.c. in combination with d.c. The use of a single network for a composite
indication of the effects of combined a.c. and d.c. has not been investigated,
- 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.

Basic Data

Standard ID	GB/T 12113-2003 (GB/T12113-2003)
Description (Translated English)	Methods of measurement of touch current and protective conductor current
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	K04
Classification of International Standard	17.220
Word Count Estimation	45,481
Date of Issue	2003-11-24
Date of Implementation	2004-08-01
Older Standard (superseded by this standard)	GB/T 12113-1996
Adopted Standard	IEC 60990-1999, IDT
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Summary	This standard specifies the following current measurement methods: the DC current through the body or a sine wave or sinusoidal AC current: and flow through the protective conductor current. The recommended method is based on measurement of touch current flowing through the human body may cause the effect of a current -based. In this standard, for measuring flow through the network (on behalf of body impedance) of the current measurement refers to the contact current measurements. These networks are not necessarily valid for the animals. Specific limits norms and meanings are not within the scope of this standard, IEC 60479-1 provides a current through the human body effects information, based on the information you can determine the current limits. This standard applies to IEC 60536 define various types of equipment. This standard measurement method does not consider in the following circumstances