What is IEC 60479-1?

IEC 60479-1, also known as IEC 60479-1:2020, is an international standard developed by the International Electrotechnical Commission (IEC). The standard provides guidelines for evaluating the effects of electrical currents passing through the human body. It specifically addresses the thermal and non-thermal effects of electric shocks on living tissues.

The Scope of IEC 60479-1

The main objective of IEC 60479-1 is to provide a comprehensive framework for assessing the potential hazards of electrical current in various situations and environments. The standard covers a wide range of considerations, including the characteristics of electrical currents, the duration and frequency of exposure, physiological responses, and safety measures.

Key Concepts and Parameters

IEC 60479-1 introduces several important concepts and parameters that are crucial to understanding the effects of electric shocks on the human body. These include:

Current Threshold: The minimum magnitude of current required to cause a harmful physiological effect.

Duration of Current Flow: The length of time the current flows through the body.

Path of Current: The route taken by the current through the body, including hand-to-hand, hand-to-feet, or hand-to-body contact.

Frequency of Current: The rate at which the current cycles per second, measured in hertz (Hz).

Effect of Current: The physiological impact on the body, including local heating, muscular contraction, fibrillation of the heart, and tissue damage.

Application and Compliance

IEC 60479-1 is widely applied in various industries, such as electrical engineering, manufacturing, construction, and healthcare. The standard is used to assess the risks associated with electrical installations, equipment, and systems. It provides guidance on safety measures, protective devices, and appropriate working practices to minimize the likelihood of electric shocks.

Compliance with IEC 60479-1 ensures that electrical systems and practices meet internationally recognized safety standards. By following the guidelines outlined in the standard, organizations can ensure the well-being of their personnel and reduce the risk of electrical accidents and injuries.