Ul l501

Wet location. Enclosed and gasketed linear ambient LED luminaire. UL listed for wet locations. Weather ul l501 chemical resistant, corrosion free, and impervious to vapors, dust, and moisture.

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Ul l501

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. There are also duct protection methods that are an integral part of fire-resistance rated assemblies, and are described within the designs. See section 3. For information on smoke control systems, see NFPA Product iQ is free to use, but does require a one-time registration. UL has developed this guide for use by code and inspection authorities, architects, contractors, installers and other interested parties.

Smoke ul l501 are investigated for use in specific vertical or horizontal assemblies as specific in the installation instructions supplied with the product. Price Now, ul l501. Combination fire-smoke dampers are used to restrict both the spread of fire and movement of smoke where ducts and air transfer openings penetrate assemblies that are designed to restrict the passage of both fire and smoke.

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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.

Ul l501

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The UL certification of ceiling dampers does not cover the products for general installation in any floor-ceiling or roof-ceiling design. The only exceptions to this are when a UL-certified product has specific markings for field-installed equipment or the replacement of components, or when the individual product is addressed through one of the specific programs noted below. Maximum closure pressure ratings are marked in increments of 2 in. Dynamic ceiling dampers are required at locations in which fan pressure and airflow remain in operation during a fire incident. These dampers would be unable to be opened. It includes requirements for smoke and combination fire-smoke dampers used to restrict the movement of smoke through duct assemblies in order to maintain a tenable environment. Product Series: ACS 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. However, this does not necessarily preclude replacement of actuators in the field. Smoke dampers are also provided with an airflow rating maximum velocity damper open and static pressure damper closed. The closure pressure rating is not the pressure drop across an open damper. In order to properly select a UL Classified damper one needs to know and understand the building design criteria and applicable model code requirements. In addition, any damaged products protecting duct and air transfer openings are required to be either repaired, restored or replaced. For more information please visit the Code Authorities page. UL , UL S.

Occasionally code authorities ask to receive copies of UL standards that are referenced in the code they are enforcing. In most cases it is not necessary to obtain the actual UL standard to determine code compliance.

Combination fire-smoke dampers are used to restrict both the spread of fire and movement of smoke where ducts and air transfer openings penetrate assemblies that are designed to restrict the passage of both fire and smoke. Operational test shall demonstrate the damper is installed and functions as intended. Corridor dampers have also demonstrated acceptable closure performance when subjected to fpm velocity across the face of the damper during fire exposure. These dampers must restrict the spread of fire and the movement of smoke through the ceiling assembly. You save. Like any appliance, field servicing of these products is not covered under the scope of the UL certification program. For information on smoke control systems, see NFPA Refer to the section in this guide entitled Ceiling Dampers under Damper Types for a detailed explanation of the limitations of the certifications applied to ceiling dampers. Smoke dampers may be required where ducts penetrate through smoke barriers or smoke partitions, or at other locations within an engineered smoke control system. Damper manufacturers can provide installation details covering the fabrication, installation and use of mullions. Leakage ratings of corridor dampers are established based on test conditions using air. Smoke dampers are investigated for use in specific vertical or horizontal assemblies as specific in the installation instructions supplied with the product.