GB/T 13870.1-2008
Effects of current on human beings and livestock.Part 1:General aspects (English Version)

Standard No.

GB/T 13870.1-2008

Language

Chinese, Available in English version

Release Date

2008

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2023-05

Replace By

GB/T 13870.1-2022

Latest

GB/T 13870.1-2022

Replace

GB/T 13870.1-1992

Scope

For a given current path through the human body, the danger to the person depends mainly on the magnitude of the current and the duration of the current. However, in many cases, the time/current regions specified in the following items are not actually directly used in the design of electric shock protection. The permissible limit value of the touch voltage as a function of time (ie the product of the current through the human body and the human body impedance) must be used as a criterion. Because the impedance of the human body changes with the contact voltage. Therefore, the relationship between current and voltage is not linear, so the relationship data needs to be given. The resistive and capacitive components presented by different parts of the human body such as skin, blood, muscles, other tissues and joints to the current constitute the body impedance. The value of body impedance depends on several factors, in particular the path of the current, the contact voltage, the duration, frequency, degree of skin moisture, contact surface area, applied pressure and temperature. The impedance values listed in this standard are mainly obtained by careful review of the data obtained from the measurements on cadavers and a few living people. The effect of alternating current on the human body is basically based on the relevant research results of the effect of alternating current with the frequency of 50Hz or 60Hz, which is the most commonly used in electrical devices, but the data given are considered applicable to the frequency range of 15Hz to 100Hz, The frequency thresholds at the beginning of this range are higher than those of 50 Hz or 60 Hz. Mainly, this chapter primarily considers the risk of ventricular fibrillation, as it is the main mechanism of fatal accidents. Judging from the number of direct current applications, accidents with direct current are much less than expected, and fatal accidents only occur in its very unfavorable situations, such as in mines; Ease of disengagement and the fact that the ventricular fibrillation threshold is much higher with DC than with AC when the shock duration is longer than the cardiac cycle.

GB/T 13870.1-2008 Referenced Document

• GB/T 3805-1993 Extra-low voltage (ELV) limit values

GB/T 13870.1-2008 history

• 2022 GB/T 13870.1-2022 Effects of current on human beings and livestock—Part 1：General aspects
• 2008 GB/T 13870.1-2008 Effects of current on human beings and livestock.Part 1:General aspects
• 1992 GB/T 13870.1-1992 Effects of current passing throuth the humman body.Part 2:Special aspects

GB/T 13870.1-2008 -All Parts