What is the difference between UL62368 and UL60950?

In the field of electrical safety, UL standards play a crucial role in ensuring consumer protection. Two commonly referenced standards are UL62368 and UL60950. While both standards focus on product safety, they differ in their scope, requirements, and testing procedures. In this article, we will explore the main differences between UL62368 and UL60950.

Scope

UL62368, also known as the Standard for Audio/Video, Information and Communication Technology Equipment - Safety Requirements, covers a broader range of equipment compared to UL60950. It includes devices such as audio equipment, video displays, computers, routers, and telecommunication equipment. On the other hand, UL60950, known as the Standard for Information Technology Equipment - Safety Requirements, mainly applies to IT equipment like servers, switches, and power supplies.

Requirements

When it comes to requirements, UL62368 incorporates newer safety principles based on hazard-based safety engineering. It emphasizes a risk assessment approach that considers potential hazards associated with a product's energy sources, electrical connections, and external factors like environmental conditions. UL60950, on the other hand, has more traditional requirements based on established safety practices.

Testing Procedures

The testing procedures for UL62368 and UL60950 also differ. UL62368 combines the previous testing methodologies of UL60950 and the Standard for Information Technology Equipment - Safety - Part 1: General Requirements, resulting in a comprehensive set of tests. These tests cover aspects like electrical shock hazards, fire hazards, energy hazards, mechanical hazards, and radiation hazards.

UL60950 follows a more focused testing approach, concentrating on requirements specifically related to information technology equipment. This includes tests for electrical safety, fire resistance, electrical insulation, heat resistance, and specific component tests.

In conclusion, UL62368 and UL60950 are both important standards for ensuring electrical safety. While UL62368 has a broader scope and incorporates newer safety principles, UL60950 focuses specifically on information technology equipment. Understanding the differences between these two standards is vital for manufacturers, regulators, and consumers in determining the specific safety requirements for different types of electrical products.