What is UL 135 ?

UL 1354 is a widely recognized standard in the industry for testing and certifying smoke control systems. The purpose of UL 1354 is to provide guidelines and requirements for evaluating the performance and functionality of these systems, which are crucial in managing smoke, heat, and toxic gases during a fire emergency, allowing building occupants to evacuate safely and aiding firefighters in their rescue efforts.

To follow the standards outlined in UL 1354, manufacturers can ensure that their smoke control systems meet specific criteria, providing reliable and effective protection in the event of a fire. Without proper certification, these systems may not perform as intended, jeopardizing the safety of building occupants.

UL 1351 is a technical standard that plays a crucial role in ensuring safety and performance in various industries. It specifically focuses on the evaluation and certification of electrical sensors and switches used in various devices and systems. The standard establishes minimum safety requirements and test procedures to ensure that these components meet the necessary criteria for reliable operation and safe handling.

UL 1351 covers a wide range of sensor and switch types, including but not limited to temperature sensors, pressure sensors, flow sensors, level sensors, limit switches, and proximity switches. By providing a standardized framework, it enables manufacturers to design, produce, and market products that comply with industry-accepted safety standards, enhancing consumer confidence and overall product quality.

This standard is essential for manufacturers, engineers, and consumers to ensure that the smoke control systems they use meet the necessary criteria for safety and reliability. The certification process outlined in UL 1354 and UL 1351 provides a structured approach to evaluating and certifying these systems, ensuring that they are safe for use in various applications and environments.