When did UL 325 start?
1973
The first edition of UL 325 was released in 1973. That edition was primarily focused on the electric operation of garage doors and did not contain provisions for gates. DASMA members of the gate operator industry initiated the inclusion of vehicular gate operator provisions within UL 325 in the early 1990’s.
Can garage door sensors be too low?
Your automatic garage door safety sensors should be set between 4 and 6 inches from the floor for optimal safety. If they are too low, occupants will easily step over the beam while the door is closing. If they are too high, the door can close on a child that may be laying across its path.
What are the safety standards for UL 325?
UL 325 & ASTM F2200 Safety Standards for Gate Operator Manufactures, Installers & Dealers WARNING – To Reduce the Risk of Injury or Death Be sure that the installer has trained the end user about the basic functions of the required reversing systems associated with the gate operating system and how to test them.
When to use a vehicular gate operator ( ul )?
A vehicular gate operator (or system) intended for use in a guarded industrial location or building such as an airport security area or other restricted access location not servicing the general public, in which unauthorized access is prevented via supervisions by security personnel.
What is the definition of continuous pressure in UL 325?
Provision for connection of, or supplied with, an actuating device requiring continuous pressure to maintain opening or closing motion of the gate. See 30A.1.14 and 1.15. Provision for connection of, or supplied with, an actuating device requiring continuous pressure to maintain opening or closing motion of the gate.
What does ul stand for in safety certification?
UL provides safety-related certification, validation, testing, inspection, auditing, advising and training services to a wide range of clients, including manufacturers, retailers, policy makers, regulators, service companies, and consumers. What is a UL Standard