What is UL 60335-2-90?

UL 60335-2-90 is an international safety standard that focuses on the safety requirements for electronic equipment used in household and similar environments. This standard was developed by Underwriters Laboratories (UL), a global safety consulting and certification company, to ensure that electrical appliances do not pose any risk of fire, electric shock, or other hazards to users.

Scope and Objectives

The scope of UL 60335-2-90 covers a wide range of electronic equipment, including but not limited to household appliances, such as washing machines, refrigerators, air conditioners, and microwave ovens. It also applies to professional equipment used in similar environments, like hotels and offices.

The main objectives of UL 60335-2-90 are to define safety requirements for these types of equipment and provide manufacturers with guidelines to design and produce safe products. Compliance with this standard indicates that the product has undergone rigorous testing and meets the industry's safety standards.

Key Requirements of UL 60335-2-90

UL 60335-2-90 sets forth several key requirements that electronic equipment must meet to be considered safe. These include:

Protection against electric shock: The equipment should be designed and constructed in a way that prevents users from coming into contact with live parts and ensures appropriate insulation.

Overheating prevention: The standard specifies limits for temperature rise in different components of the equipment to prevent malfunction and potential fire hazards.

Protection against mechanical hazards: The equipment must be designed to minimize the risks of injury caused by moving parts or sharp edges.

Stability and robustness: The standard addresses the equipment's stability and durability, ensuring that it does not tip over easily and remains intact during normal use.

Certification and Compliance

To demonstrate compliance with UL 60335-2-90, manufacturers need to undergo testing and evaluation by a recognized testing laboratory. After successful completion of the testing process, the product can receive UL certification, which assures consumers that the equipment meets safety standards.

Compliance with UL 60335-2-90 is crucial for manufacturers as it helps build trust with customers, enhances product credibility, and keeps their brand reputation intact. Additionally, adhering to this standard can significantly reduce the risk of accidents or hazards associated with electrical appliances.

In conclusion, UL 60335-2-90 plays a vital role in ensuring the safety of electronic equipment used in household and similar environments. With its comprehensive requirements and testing procedures, this international standard aims to protect consumers from potential hazards and provide them with peace of mind when using electrical appliances.