1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1479 Fire Tests of Penetration FirestopsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR F
2、URTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Fire Tests of Penetration Firestops, UL 1479 Fourth Edition, Dated June 10, 2015 Summary of Topics This new edition of ANSI/UL 1479 was issued to incorporate the following change: Including test provisions for
3、membrane penetration type restop systems. The effective date for UL LLC will be announced through Industry File Review Announcement Letter. The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated May 16, 2014 and October 24, 2014. All rights reserved.
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8、rchasers computer system. JUNE 10, 2015 UL 1479 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 10, 2015 UL 1479 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSI
9、ON FROM UL JUNE 10, 2015 1 UL 1479 Standard for Fire Tests of Penetration Firestops Prior to the rst edition, the requirements for the products covered by this standard were included in the Standard for Fire Tests of Building Construction and Materials, UL 263, and in the Standard for Fire Tests of
10、Door Assemblies, UL 10B. Prior to the 4th edition, the title of the Standard was Standard for Fire Tests of Through-Penetration Firestops. First Edition January, 1983 Second Edition June, 1994 Third Edition May, 2003 Fourth Edition June 10, 2015 This ANSI/UL Standard for Safety consists of the Fourt
11、h Edition. The most recent designation of ANSI/UL 1479 as an American National Standard (ANSI) occurred on June 10, 2015. ANSI approval for a standard does not include the Cover Page, Transmittal Pages and Title Page. Comments or proposals for revisions on any part of the Standard may be submitted t
12、o UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards an
13、d all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC. ANSI/UL 1479-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 10, 20
14、15 FIRE TESTS OF PENETRATION FIRESTOPS - UL 1479 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 Units of Measurement .6 3 References .6 4 Glossary .6 PERFORMANCE 5 Fire Exposure Test
15、7 5.1 Test sample .7 5.2 Conditioning .9 5.3 Protection of assembly and sample .9 5.4 Furnace temperature control and measurement .10 5.5 Furnace thermocouple preparation 13 5.6 Unexposed side temperature measurement .13 5.7 Differential pressure measurements .19 5.8 Duration of test 20 6 Hose Strea
16、m Test .20 7 Air Leakage Test 21 7.1 Test sample 21 7.2 Conditioning 21 7.3 Test chamber .21 7.4 Test setup 22 7.5 Extraneous chamber leakage requirements .22 7.6 Ambient temperature exposure tests .22 7.7 Elevated temperature exposure tests 23 7.8 Recorded test data 23 8 Water Leakage Test 23 8.1 T
17、est sample 23 8.2 Test chamber .24 8.3 Test setup 24 8.4 Recorded test data 25 9 Environmental Exposure Tests for Intumescent Material 25 9.1 General 25 9.2 Required environmental exposures 25 9.3 Supplemental environmental exposures 25 9.4 Expansion pressure test 26 9.5 Expansion factor test 27 RAT
18、ING 10 F Rating .28 11 T Rating .28 12 L Rating .28 13 W rating .29 14 Fire Exposure Correction 29 JUNE 10, 2015 FIRE TESTS OF PENETRATION FIRESTOPS - UL 1479 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL REPORT 15 Results 29 APPENDIX A A
19、1 Background information for the W-Rating A1 A2 Background for wall opening protective testing for outlet boxes A1 JUNE 10, 2015 FIRE TESTS OF PENETRATION FIRESTOPS - UL 1479 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Sc
20、ope 1.1 These requirements cover through penetration restops of various materials and construction that are intended for use in openings in re resistive wall, oor or oor-ceiling assemblies, and membrane type penetration restops of various materials and construction that are intended for use in openi
21、ngs in re resistive wall assemblies. 1.2 The method of testing penetration restops as specied by these requirements consists of exposure of test samples to a re of standard time and temperature and to an application of a hose stream. Ratings are then established on the basis of: a) The length of tim
22、e the restop resists re before the rst development of through openings or aming on the unexposed surface; b) Acceptable limitation of thermal transmission; and c) Acceptable performance under the application of the hose stream. 1.3 The method of testing also includes optional air leakage tests to de
23、termine the rate of air leakage through penetration restop systems resulting from a specied air pressure difference applied across the surface of the systems. 1.4 The method of testing also includes optional water leakage tests to determine the ability of penetration restop systems to resist the pas
24、sage of water under a three foot pressure head. This method does not evaluate the ability of uncured restop systems to resist such exposure. 1.5 Two ratings are established for each penetration restop system: an F rating based upon ame occurrence on the unexposed side of the test sample and acceptab
25、le hose stream performance; and a T rating based on temperature rise and ame occurrence on the unexposed side of the test sample and acceptable hose stream performance. 1.6 An L rating may also be established for a penetration restop system. The L rating is based on the amount of air leakage through
26、 the test sample. 1.7 A W rating may also be established for a penetration restop system. The W rating is based on the water resistance of the test sample. 1.8 The method of testing penetration restop systems containing piping systems for vented (drain, waste or vent) systems and closed (process or
27、supply) systems is differentiated by the capping or non-capping of the piping systems on the unexposed side of the test assembly as described in 5.1.1.2. 1.9 Tests conducted in accordance with these requirements are intended to demonstrate the performance of penetration restops during exposure to re
28、, but are not intended to determine acceptability of restops for use after exposure to re. These requirements do not cover the ampacity of conductors encased in penetration restop materials. JUNE 10, 2015 FIRE TESTS OF PENETRATION FIRESTOPS - UL 1479 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTH
29、ER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 1.10 The results obtained from the air leakage tests are expressed in ft 3 /min (m 3 /s) per ft 2 (m 2 )o f opening. The results are intended to develop data to assist authorities having jurisdiction, and others, in determining the acceptabi
30、lity of penetration restops with reference to the control of air movement through the assembly. 1.11 These requirements do not cover outlet boxes and ttings for use in and evaluated for re resistance as part of a re-resistance-rated oor, oor-ceiling or wall assembly. 2 Units of Measurement 2.1 Value
31、s stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 3 References 3.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or stan
32、dard. 4 Glossary 4.1 For the purpose of this standard the following denitions apply. 4.2 AIR-FLOW METERING SYSTEM A device used to measure the air ow. 4.3 AIR LEAKAGE (Q) The volume of air owing, per unit of time, through the openings around the test sample under a test pressure difference, expresse
33、d as ft 3 /min (m 3 /s). This air leakage volume is to be reported standardized to an ambient air temperature of 75F (24C). 4.4 AIR LEAKAGE TEST CHAMBER A sealed chamber or box with an opening, a removable mounting panel, or one open side in which or against which the test sample is installed and se
34、aled. 4.5 AIR SYSTEM A controllable blower, compressed air supply, exhaust system, or reversible blower designed to provide an essentially constant required air ow at the specied xed test pressure difference for the period required to obtain readings of air leakage. 4.6 AMBIENT TEMPERATURE EXPOSURE
35、The temperature at the exposed face of the test sample is to be 75 20F (24 11C). 4.7 ELEVATED TEMPERATURE EXPOSURE The temperature at the exposed face of the test sample is to be 400 10F (204 5C). 4.8 EXTRANEOUS LEAKAGE (Q L ) The difference between the metered air ow (Q m ) and the air leakage (Q).
36、 4.9 MEMBRANE-PENETRATION FIRESTOP A specic construction that: a) Consists of material(s) that lls or covers the opening and that is intended to prevent the passage of ame; b) Consists of penetrating items, such as outlet boxes, cabinets, pipes, ducts, along with their means of support through the w
37、all opening; and c) Only penetrates one side of a re resistive assembly. JUNE 10, 2015 FIRE TESTS OF PENETRATION FIRESTOPS - UL 1479 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 4.10 METERED AIR FLOW (Q m ) The volume of air owing per un
38、it of time through the air ow metering system, expressed as ft 3 /min (m 3 /s). 4.11 RATE OF AIR LEAKAGE The total air leakage per sample, expressed as ft 3 /min (m 3 /s) per ft 2 (m 2 ) of opening. 4.12 REPLACEMENT AIR The volume of air, at ambient temperature, added to the test chamber, to replace
39、 the air leakage (Q) volume of air in either the ambient or elevated temperature exposure tests. 4.13 TEST ASSEMBLY The wall or oor into which the test sample is mounted or installed. 4.14 TEST PRESSURE DIFFERENCE The specied difference in static air pressure across the xed test sample, expressed as
40、 inch of water column (Pa). 4.15 TEST SAMPLE The through-penetration or membrane-penetration restop being tested. 4.16 THROUGH-PENETRATION FIRESTOP A specic construction that: a) Consists of material(s) that lls or covers the opening and that is intended to prevent the passage of ame; b) Consists of
41、 penetrating items, such as cables, cable trays, conduits, ducts, and pipes, along with their means of support through the wall, oor or oor-ceiling opening; and c) Penetrates through a re resistive assembly. PERFORMANCE 5 Fire Exposure Test 5.1 Test sample 5.1.1 Through-penetration restop 5.1.1.1 Fo
42、r through-penetration restop systems, the penetrations and supporting construction to be tested shall be representative of the construction for which ratings are desired with respect to materials, workmanship, and details such as dimensions of parts. The through-penetration restop system is to be in
43、stalled in accordance with the manufacturers specied installation instruction procedure. When a through-penetration restop is intended for use in both oor and walls, each orientation is to be tested unless it is demonstrated that testing in a single orientation does not affect the test results. 5.1.
44、1.2 Penetrating items are to be installed in the test sample so that they extend a minimum of 11 in (279 mm) from the exposed side, and a maximum of 37 in (940 mm) from the unexposed side unless either or both of these extensions are not characteristic of actual eld installations. For partially insu
45、lated penetrations, a minimum of 11 in (279 mm) of the bare penetration shall extend beyond the termination of the insulation on the exposed side of the assembly. The extended portions of the penetrating items on the unexposed side are to be mechanically supported by a metal rack and secured at no m
46、ore than two points. The individual ends of the penetrating items are to be covered on the exposed side to prevent excessive transfer of gases through the test sample. When the penetrating item is intended to be representative of a closed system that is not normally vented or open to the atmosphere,
47、 the penetrating item can also be capped or sealed on the unexposed side. Otherwise, penetrating items shall not be capped or sealed on the unexposed side. JUNE 10, 2015 FIRE TESTS OF PENETRATION FIRESTOPS - UL 1479 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WIT
48、HOUT PERMISSION FROM UL 5.1.1.3 Penetrating items of horizontal assemblies are to be exposed to the furnace temperatures for the minimum specied distance of 11 in (279 mm) from the plane representing the bottom surface of a oor assembly or oor-ceiling assembly and shall not be contained within the c
49、avity of a wall under test conditions regardless of whether the intended application involves a completely exposed penetrant or one which may be fully or partially contained within the cavity of a wall. 5.1.1.4 The periphery of the test sample is to be not closer than 1-1/2 times the thickness of the test assembly, or a minimum of 12 in (300 mm), to the furnace edge, whichever is greater. The distance between the test
