What is the clearance of IEC 62368 1 ?

IEC 62368-1 is an essential safety standard that applies to a wide range of audio, video, and information technology equipment. One of the most important requirements of this standard is the clearance distance, which refers to the minimum distance that needs to be maintained between live parts and accessible parts. In this article, we will explore the concept of clearance in IEC 62368-1, its significance, and how it can help prevent electrical hazards.

The clearance of IEC 62368-1 is a critical parameter that ensures the safety of electrical equipment. It refers to the distance between live parts and accessible parts, which is essential to avoid electrical hazards. The clearance distance is determined based on the category of the equipment, with higher categories requiring larger clearance distances.

Understanding Clearance

Clearance distance is defined in IEC 62368-1 as the minimum distance between a live part and an accessible part, such as a button or a connector. The clearance distance is typically measured in millimeters and is based on the category of the equipment. For example, equipment in category A requires a clearance distance of at least 150mm, while equipment in category B requires a clearance distance of at least 200mm.

The clearance of IEC 62368-1 is important because it helps to prevent electrical hazards. If the clearance distance is too small, electrical currents can flow through the equipment and pose a risk to the user. For example, if a person touches a live part that is too close to an accessible part, they could experience a shock.

Clearance is also important for ensuring equipment reliability and longevity. If the clearance distance is too small, the equipment may become overheated or damaged, which can lead to reliability issues and shorter lifetimes.

Measuring Clearance

To ensure compliance with IEC 62368-1, manufacturers must measure the clearance distance of their equipment. This is typically done using a specialized measurement device called a clearance tester. The clearance tester measures the distance between the live part and the accessible part using a laser or a light source.

It is important to note that the clearance of IEC 62368-1 is just one aspect of electrical safety. It is essential to also ensure that equipment is designed, installed, and maintained in accordance with other safety standards, such as UL or CE markings.

Conclusion

In conclusion, the clearance of IEC 62368-1 is an essential parameter that ensures the safety of electrical equipment. It is the minimum distance between a live part and an accessible part, and it is typically measured using a clearance tester. The clearance of IEC 62368-1 is important for preventing electrical hazards, ensuring equipment reliability, and longevity.