What is UL 190 ?

Title: What is UL 190 and UL 195? A Comprehensive Guide

UL (Underwriters Laboratories) is a global safety consulting and certification company that aims to ensure the safety and reliability of various products. UL 190 and UL 195 are two of the most important technical standards published by UL. In this article, we will discuss the purpose and requirements of both UL 190 and UL 195, providing a comprehensive guide for readers.

UL 190: The Technical Standard for Rigid Metal Conduit Systems

UL 190 is a technical standard published by UL that sets forth requirements for the rigid metal conduit (RMC) used in electrical installations. The primary purpose of UL 190 is to ensure the safety and reliability of rigid metal conduit systems. As such, it covers various aspects of the design, manufacture, testing, and marking of RMC systems.

Key Requirements of UL 190:

Electrical Safety: RMC systems must be designed and manufactured to minimize the risk of electrical shock, fire, or explosion.

Performance: The RMC must be able to withstand the environmental conditions and loads specified by UL 10485.

Durability: The RMC must be able to withstand the tests specified by UL 10485 without being damaged.

Compatibility: The RMC must be compatible with other electrical installations, including but not limited to grounding, voltage, and current levels.

Traceability: The manufacturer must be able to trace the RMC back to the original design and specifications.

UL 195: The Technical Standard for Evaluating Safety of Electrical Equipment and Products

UL 195 is a technical standard published by UL that provides guidelines and requirements for product testing, certification, and marking to ensure that electrical equipment and products meet certain safety standards. The primary purpose of UL 195 is to protect consumers from potential hazards caused by electrical products.

Key Requirements of UL 195:

Safety: The electrical equipment or product must not pose any safety risk to consumers.

Performance: The electrical equipment or product must perform as intended and not pose any safety risks.

Compliance: The electrical equipment or product must comply with relevant regulations and standards.

Testing: The electrical equipment or product must undergo testing to ensure compliance with UL 195 requirements.

Marking: The electrical equipment or product must be labeled with the appropriate UL 195 markings.

Conclusion:

UL 190 and UL 195 are two important technical standards published by UL that provide guidelines and requirements for the design, manufacture, testing, and certification of various products. By implementing these standards, manufacturers can ensure that their products are safe to use and do not pose any risks to consumers. As such, it is important to comply with the requirements of UL 190 and UL 195 to ensure the safety and reliability of electrical equipment and products.