GB/T 13870.1-2022 Active National standards

GB/T 13870.1-2022 Effects of current on human beings and livestock—Part 1:General aspects

Publish Date: 2022-10-12 Implement Date: 2023-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 13870.1-2022

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Health, safety, and labor protection

ICS Name: Accident and disaster control

Publish Date: 2022-10-12

Implement Date: 2023-05-01

Pages: 63 pages

Scope

This document provides basic guidelines on the effects of electric current on humans and livestock.
Regarding a given current path through the human body, the danger to humans primarily depends on the current value and the duration of electrical stimulation. However, in many cases, the time/current regions specified in the following provisions are not directly used in the design of electric shock protection. The permissible limit values of contact voltage (i.e., the product of the current passing through the human body and the human body resistance) as a function of time must be used as a criterion. Since the human body resistance varies with the contact voltage, the relationship between current and voltage is not linear, so the data on this relationship must be provided. The resistive and capacitive components of the current presented by different parts of the human body, such as skin, blood, muscles, other tissues, and joints, constitute the human body resistance.
The value of human body resistance depends on several factors, particularly the current path, contact voltage, current duration, frequency, skin wetness, contact surface area, applied pressure, and temperature.
The resistance values listed in this document are primarily based on carefully reviewed data obtained from measurements on cadavers and a small number of living humans.
The effects of AC current on the human body are primarily based on the results of studies on AC current with the most commonly used frequency of 50 Hz or 60 Hz in electrical devices. However, the data provided are considered applicable to a frequency range of 15 Hz to 100 Hz. At the lower end of this range, the threshold values are higher than those at 50 Hz or 60 Hz, primarily to consider the risk of ventricular fibrillation, which is the main mechanism of fatal accidents.
In terms of the number of DC applications, the number of accidents involving DC is much lower than expected. Fatal accidents only