What is IEC 60479-4:2021?

IEC 60479-4:2021 is an International Electrotechnical Commission (IEC) standard that specifically deals with the effects of electric shock on human beings and livestock. It provides guidelines for determining electrical hazardous areas, evaluating the severity of electric shock to humans, and setting safety requirements to prevent such incidents and minimize their consequences.

Determining Electrical Hazardous Areas

Electrical hazardous areas are specific locations where the risk of electric shock is higher compared to normal environments. These areas are categorized based on various factors such as voltage levels, presence of conductive and flammable materials, proximity to water sources, and likelihood of contact. IEC 60479-4:2021 outlines the criteria for classifying these areas and provides guidance on how to create safe working conditions within them.

Evaluating the Severity of Electric Shock

When an individual comes into contact with an electrical current, the severity of the shock depends on several factors, including the magnitude of the current, the duration of exposure, and the path the current takes through the body. IEC 60479-4:2021 defines different parameters to evaluate these factors and assess the potential harmful effects. By understanding the severity of electric shock, appropriate safety measures and precautions can be implemented to protect individuals in various scenarios.

Safety Requirements to Prevent Electric Shock

Based on the evaluations of electrical hazardous areas and the severity of potential electric shocks, IEC 60479-4:2021 establishes safety requirements for equipment, installations, and procedures to prevent electric shock incidents. These requirements cover aspects such as insulation, grounding, protective devices, warning signs, and proper training of personnel. By complying with these safety measures, the risk of electric shock can be significantly reduced, ensuring a safer environment for both humans and livestock.