1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1887 Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke CharacteristicsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL
2、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke Characteristics, UL 1887 Third Edition, Dated October 15, 2004 Summary of Topics This revision is bein
3、g issued to reaffirm approval of UL 1887 as an American National Standard. No changes in requirements are involved. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. Changes in requirements are marked with a vertica
4、l line in the margin and are followed by an effective date note indicating the date of publication or the date on which the changed requirement becomes effective. The revisions are substantially in accordance with Proposal(s) on this subject dated March 8, 2013. All rights reserved. No part of this
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9、r system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the note following the affected item. The prior text for requirements that have been revised and th
10、at have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. MAY 3, 2013 UL 1887 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 3, 2013 UL 1887 tr2 No Text on This PageUL COPYR
11、IGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 15, 2004 (Title Page Reprinted: May 3, 2013) 1 UL 1887 Standard for Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke Characteristics First Edition January, 1989 Second Edition De
12、cember, 1996 Third Edition October 15, 2004 This ANSI/UL Standard for Safety consists of the Third Edition including revisions through May 3, 2013. The most recent designation of ANSI/UL 1887 as a Reaffirmed American National Standard (ANS) occurred on May 3, 2013. ANSI approval for a standard does
13、not include the Cover Page, Transmittal Pages, Title Page, or effective date information. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System
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15、 2013 UNDERWRITERS LABORATORIES INC. ANSI/UL 1887-2004 (R2013)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 3, 2013 UL 1887 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT P
16、ERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .4 2 General 4 2.1 Units of measurement .4 2.2 Undated references .4 PERFORMANCE 3 Test Assembly 4 3.1 Fire test chamber .4 3.2 Smoke measurement 10 3.3 Temperature measurement .11 4 Test Specimens .11 5 Calibration of Test Equipment .11 6 Test Procedu
17、re 17 REPORT 7 General .18 OCTOBER 15, 2004 UL 1887 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 This is a test method for determining values of ame propagation distance and optical smoke density for plastic spri
18、nkler pipe that is to be installed in ducts, plenums, and other spaces used for environmental air. 1.2 This test method does not cover the construction requirements for sprinkler pipe for pressure or other performance requirements. 1.3 A product that contains features, characteristics, components, m
19、aterials, or systems new or different from those covered by the requirements in this standard, and that involves a risk of re or of electric shock or injury to persons shall be evaluated using appropriate additional component and end-product requirements to maintain the level of safety as originally
20、 anticipated by the intent of this standard. A product whose features, characteristics, components, materials, or systems conict with specic requirements or provisions of this standard does not comply with this standard. Revision of requirements shall be proposed and adopted in conformance with the
21、methods employed for development, revision, and implementation of this standard. 2 General 2.1 Units of measurement 2.1.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 2.2 Undated references 2.2.1 Any undated reference to a c
22、ode or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. PERFORMANCE 3 Test Assembly 3.1 Fire test chamber 3.1.1 The re test chamber is to consist of a horizontal duct having the shape and size shown in Figures 3
23、.1 3.3. The sides and base of the duct are to be lined with insulating masonry as illustrated in Figure 3.2 consisting of a row of refractory re bricks a . One side is to be provided with a row of double-pane (inside pane mounted ush with inner wall see Figure 3.2), pressure-tight (as described in 5
24、.2 and 5.3) observation windows b exposed area: 2-3/4 1/4 by 11 1-1/2 inches (69.8 6.3 by 279 38.1 mm) located so that the entire length of the specimens being tested is capable of being observed from outside the re test chamber. a The operation and calibration of this equipment is based on the use
25、of A. P. Green G-26 refractories. b Vycor, 100 percent silica glass, nominal 1/4 inch (6.4 mm) thick or equivalent, is capable of being used for the inside pane. Pyrex glass, nominal 1/4 inch thick or equivalent, is capable of being used for the outer pane. OCTOBER 15, 2004 UL 1887 4UL COPYRIGHTED M
26、ATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This is generated text for gtxt. 3.1.2 The ledges are to be fabricated of structural metal. Water-cooled, structural-steel tubing is capable of being used for this purpose. 3.1.3 To provide air turbulence for
27、combustion, turbulence-inducing baffling is to be provided by positioning six refractory re bricks a long dimension vertical and 4-1/2-inch (114-mm) dimension parallel to the wall along the side walls of the chamber at distances of 7, 12, and 20 1/2 foot (2.1, 3.7, and 6.1 0.2 m) on the window side,
28、 and 4-1/2, 9-1/2, and 16 1/2 foot (1.4, 2.9, and 4.9 0.2 m) on the opposite side. 3.1.4 The top is to consist of a removable metal- and mineral-insulation composite unit having insulation consisting of nominal 2-inch (50-mm) thick mineral-composition material. The top unit shown in Figure 3.2 and i
29、s to completely cover the re test chamber. The mineral-composition material is to have physical characteristics comparable to the following: a) Maximum effective temperature 1200F (649C). b) Bulk Density 21.0 1.55 pounds per cubic foot (336 24 kg/m 3 ). Figure 3.1 Details of re-test chamber See Figu
30、re 3.2 for Section B-B OCTOBER 15, 2004 UL 1887 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL c) Thermal conductivity 0.50 0.71 Btu (thermochemical) inch per hour square foot F (0.0722 0.102 W/m K) at 300 700F (149 371C). The entire top-p
31、anel unit is to be protected with at sections of high-density nominally 110 pounds per cubic foot (1761 kg/m 3 ), 1/4-inch (6.3-mm) thick mineral-ber/cement board maintained in an unwarped and uncracked condition through continued replacement. While in place, the top panel is to be completely sealed
32、 against the leakage of air into the re test chamber during the test. This is generated text for gtxt. OCTOBER 15, 2004 UL 1887 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Figure 3.2 Section B-B See Figure 3.3 for details of the tray an
33、d supports OCTOBER 15, 2004 UL 1887 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.1.5 The ladder-type tray used to support the test specimens is shown in Figures 3.2 and 3.3. The tray is to be fabricated from cold-rolled steel, 50,000 p
34、si minimum (350 MPa) tensile strength. The solid-bar-stock side rails are to be as shown in Figure 3.3. The C-shaped channel rungs are to be as shown in Figure 3.3. Each rung is to be 11-1/4 inches (286 mm) long. The rungs are to be welded to the side rails 9 inches (229 mm) on centers along the tra
35、y length. The tray is capable of consisting of several sections having a total assembled length of 23.9 feet (7.28 m) and is to be supported with 16 supports equally spaced along the length of the tray. The supports (see Figure 3.3) are to be fabricated from bar steel. 3.1.6 One end of the test cham
36、ber, designated as the re end in Figure 3.1, is to be provided with two gas burners delivering ames upward that engulf the test specimens. As shown in Figure 3.2, the burners are to be positioned transversely to each side of the centerline of the furnace so that the ame is evenly distributed over th
37、e width of the specimens. 3.1.7 The controls used to maintain a constant ow of gas to the burners are to consist of a pressure regulator; a gas meter calibrated to read in increments of not more than 0.1 cubic foot (2.88 mm 3 ); a gauge to indicate gas pressure in inches of water (Pa); a quick-actin
38、g gas-shutoff valve; a gas-metering valve; and an orice plate in combination with a manometer to assist in maintaining uniform gas-ow conditions. An air intake tted with a vertically-sliding shutter extending the entire width of the test chamber is to be provided at the re end. The shutter is to be
39、positioned to provide an air-inlet port as shown in Figure 3.1. 3.1.8 The other end of the test chamber, designated as the vent end in Figure 3.1, is to be tted with a rectangular-to-round transition piece which, in turn, is to be tted to a round ue pipe. The movement of air is to be by induced draf
40、t. The draft-inducing system is to have a total draft capacity of at least 0.15 inch of water (37 Pa) with the specimens in place, with the shutter at the re end open to its normal position, and with the damper (see Section C-C in Figure 3.1) in the wide-open position. A draft-gauge manometer to ind
41、icate static pressure is to be inserted through the top at the mid-width of the tunnel, just downstream of the air-intake shutter (see Figure 3.1). 3.1.9 The damper is to be installed in the vent pipe downstream of the smoke-indicating attachment specied in 3.2.1. This is generated text for gtxt. OC
42、TOBER 15, 2004 UL 1887 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Figure 3.3 Details of steel tray and supports OCTOBER 15, 2004 UL 1887 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSIO
43、N FROM UL 3.1.10 An automatic draft-regulator controller is to be mounted in the vent pipe downstream of the manual damper. Other manual-, automatic-, or special draft-regulation devices are to be incorporated to maintain air-ow control throughout each test run. 3.1.11 The room in which the test cha
44、mber is located is to have provision for a free inow of air to maintain the room at atmospheric pressure throughout each test run. 3.2 Smoke measurement 3.2.1 A light source c is to be mounted on a horizontal section of the vent pipe at a point at which it is: a) Preceded by a straight run of round
45、pipe at least 12 diameters or 16 feet (4.88 m) from the vent end of the rectangular-to-round transition section and b) Not affected by ame from the test chamber. The light beam is to be directed upward along the vertical axis of the vent pipe. The vent pipe is to be insulated with high-temperature,
46、mineral-composition material from the vent end of the chamber to the photometer location. A photoelectric cell d having an overall light-to-cell path length of 36 2 inches (914 51mm), 16 inches (406 mm) of which are taken up by the smoke in the vent-pipe interior as shown in Section C-C of Figure 3.
47、1. The cell is to be connected to recording devices for indicating changes in the attenuation of incident light by passing smoke, particulate matter, and other effluents. c A General Electric Model 4405, 12-volt, sealed-beam, clear auto spot lamp or equivalent is capable of being used for this purpo
48、se. d A Weston Instruments No. 856BB photronic cell with an overall light-to-cell path length of 36 2 inches (914 51 mm), or its equivalent is capable of being used for this purpose. 3.2.2 The output of the photoelectric cell is to be connected to a recording device that processes the signal into a
49、continuous record of smoke obscuration according to the following formula: in which: T o is the initial light transmission (without smoke) and T is the light transmission during the test (T varies with the amount of smoke). OCTOBER 15, 2004 UL 1887 10UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.3 Temperature measurement 3.3.1 An 18 AWG thermocouple nominal wire
