Ul l501

Wet location. Enclosed and gasketed linear ambient LED luminaire.

Building and fire codes require fire and smoke protection features to safeguard building occupants from fire hazards and hazards associated with smoke and hot toxic gases generated during a fire situation. This includes requiring fire-resistance-rated assemblies, such as fire walls, fire barriers, fire partitions, shaft enclosures and horizontal assemblies be provided to limit the spread of fire. This system of passive protection is an integral part of the overall fire safety approach taken by the model codes. This marking and application guide provides important information on limiting the spread of fire, smoke and toxic gases by protecting duct penetrations and air-handling openings in fire and smoke rated assemblies. There are five types of dampers recognized by the model codes for this purpose: fire, smoke, combination fire-smoke, ceiling and corridor dampers. UL certifies all five types of dampers in accordance with the requirements in model building, fire, and mechanical codes. These dampers and the applications for which they are certified are covered in detail in this guide.

Ul l501

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The building codes specify where fire dampers are required, and establish how the fire damper is to be installed in the field. It is intended to aid in understanding the types of dampers which exist, ul l501, in association with the applicable codes and standards to facilitate safe, code-compliant installations. WG with a minimum closure pressure rating ul l501 4 in.

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Ul l501

Click here for Roof Assemblies and Columns. It has approval for use on structural We hope the information here will be helpful. It is based on data and knowledge considered to be true and accurate and is offered for consideration, investigation and verification by the user, but we do not warrant the results to be obtained. Please read all statements, recommendations and suggestions in conjunction with our conditions of sale, which apply to all goods supplied by us. No statement, recommendation or suggestion is intended for any use that would infringe any patent, copyright or other third-party right.

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Each listing is specific with respect to 1 construction details of the ceiling in which the damper is installed, 2 the hourly fire-protection rating, 3 the damper leakage Class, 4 the minimum and maximum size of a single damper section. There are also duct protection methods that are an integral part of fire-resistance rated assemblies, and are described within the designs. Data Sheet. Acceptance testing shall demonstrate the damper functions as intended prior to occupancy of the building. Fire dampers are investigated for use in specific fire-resistive vertical or horizontal assemblies as specified by the installation instructions that are supplied by the product manufacturer. Applicable information describing the installation of ceiling dampers for this application, include a reference to the specific ceiling damper model, an indication that the fire resistance design ratings were developed under conditions employing air movement and the maximum qualified velocity rating, is included in the text and drawings for the specific designs in UL Product iQ. Damper manufacturers can provide installation details covering the fabrication, installation and use of mullions. Duct type smoke detectors have a minimum and maximum airflow rating. When the duct penetrates through the membrane ceiling of a fire-resistance-rated floor-ceiling or roof-ceiling assembly, but not through the floor or roof, then a ceiling damper is used. The information provided in the product GuideInfo is different from the overview and expanded explanatory information contained in this marking and application guide. Building and fire codes require fire and smoke protection features to safeguard building occupants from fire hazards and hazards associated with smoke and hot toxic gases generated during a fire situation.

Contact us This page allows you to search for your desired UL fire rated assemblies, designs or systems.

The model codes contain several exceptions to the shaft enclosure requirements. Method 2. Leakage ratings of corridor dampers are established based on test conditions using air. NFPA 80 covers the required inspection and testing of dampers and provides the testing frequency required for dampers. The intent of the lower ceiling membrane is to retard the passage of heat into the concealed space. This system of passive protection is an integral part of the overall fire safety approach taken by the model codes. Enclosed and gasketed linear ambient LED luminaire. Voltage Range: V. Openings entirely through the ceiling of a tunnel corridor, where the ceiling is constructed as required for the walls, are protected with corridor dampers. Ceiling dampers referred to as ceiling radiation dampers in the International Building Code are intended to function only as a heat barrier to limit heat transfer, into the concealed space of a fire-resistance-rated floor-ceiling or roof-ceiling assembly where ducts or air transfer openings are made only through the ceiling membrane that is part of the fire-resistance rated assembly. However, this does not necessarily preclude replacement of actuators in the field. WG with a minimum closure pressure rating of 4 in.