1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2775 Fixed Condensed Aerosol Extinguishing System Units STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRI
2、GHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Fixed Condensed Aerosol Extinguishing System Units, UL 2775 First Edition, Dated April 3, 2014 Summary of Topics This revision of ANSI/UL 2775 is being issued to update commer
3、cial grade heptane specications and include requirements for integral electrical tting connections. The requirements are substantially in accordance with Proposal(s) on this subject dated July 28, 2017. Text that has been changed in any manner or impacted by ULs electronic publishing system is marke
4、d with a vertical line in the margin. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as i
5、s without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings,
6、 loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardle
7、ss of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced
8、while purchaser is storing an electronic Standard on the purchasers computer system. AUGUST 30, 2017 UL 2775 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 30, 2017 UL 2775 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHO
9、RIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 3, 2014 (Title Page Reprinted: August 30, 2017) 1 UL 2775 Standard for Fixed Condensed Aerosol Extinguishing System Units Prior to the rst edition, the requirements for the products covered by this standard were included
10、 in the Outline of Investigation for Fixed Condensed Aerosol Extinguishing System Units, UL 2775. First Edition April 3, 2014 This ANSI/UL Standard for Safety consists of the First Edition including revisions through August 30, 2017. The most recent designation of ANSI/UL 2775 as an American Nationa
11、l Standard (ANSI) occurred on August 30, 2017. 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 to UL at any time. Proposals should be submitted via a Proposal Request in
12、ULs On-Line Collaborative Standards Development System (CSDS) at https:/. 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 and all copyrights, ownerships, and rights regarding those Standards shall
13、remain the sole and exclusive property of UL. COPYRIGHT 2017 UNDERWRITERS LABORATORIES INC. ANSI/UL 2775-2017UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 30, 2017 FIXED CONDENSED AEROSOL EXTINGUISHING SYSTEM UNITS - UL 2775 2 No Te
14、xt on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .6 2 Components 6 3 Units of Measurement .7 4 Undated References 7 5 Glossary .7 CONSTRUCTION 6 General 9 7 Electrically Operated Alarms .10A 8 Cont
15、rols and Indicators .10A 9 Pneumatic Control Assembly Pressure Vessels 10B 10 Pressure Relief Devices for Pneumatic Control Assemblies 16 11 Gaskets and O Rings 16 12 Pressure Gauges for Pneumatic Control Assemblies 16 13 Puncturing Mechanisms .18 14 Electrically Operated Devices 18 15 Condensed Aer
16、osol Extinguishing Agents 18 16 Pneumatic Control Gases 18 17 Polymeric Materials and Nonmetallic Parts .18 18 Anti-Recoil Devices .19 19 Pressure Switches 19 PERFORMANCE 20 General 20 21 Discharge Test .20 22 Temperature Measurement Test 21 23 Mounting Device Test .21 24 Rough Usage Test .22 25 Vib
17、ration Test 22 26 Pyrotechnic Reaction Containment Test 23 27 Fire Exposure Test 24 28 High Humidity Test 24 29 Moist Hydrogen Sulde Air Mixture Corrosion Test 25 30 Moist Carbon Dioxide-Sulfur Dioxide Air Mixture Corrosion Test 25 31 Salt Spray Corrosion Test .26 32 Thirty-Day Elevated Temperature
18、Test 27 33 Temperature Cycling Test .28 34 One-Year Time Leakage Test 29 35 Hydrostatic Pressure Test .29 35.1 Pressure vessels .29 35.2 Other pressure retaining devices .30 35.3 Test method .31 36 Pressure Relief Tests .31 37 Flexible Hose Assembly Low Temperature Test 32 38 Calibration Test Gauges
19、 .32 39 Burst Strength Test Gauges 32 AUGUST 30, 2017 FIXED CONDENSED AEROSOL EXTINGUISHING SYSTEM UNITS - UL 2775 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 40 Overpressure Test Gauges .33 41 Impulse Test Gauges 33 42 Pressure Relief
20、Test Gauges .33 43 Water Resistance Test Gauges .34 44 Pneumatic Operation Test .34 45 Pneumatic Time Delay Verication Test .35 46 Pressure-Operated Alarm Test .35 47 Operation Test of Manual Actuators and Manual Pull Stations 36 48 500 Cycle Operation Test 36 48.1 Electrical initiators 36 48.2 Othe
21、r devices .37 49 Class A and B Fire Extinguishment Tests 38 49.1 General test parameters 38 49.2 Class A re extinguishment tests 39 49.3 Class B re extinguishment tests 46 50 Distribution Verication Extinguishment Tests with Extinguishing System Units .47 50.1 General .47 50.2 Test enclosure 48 50.3
22、 Maximum area coverage and minimum height test arrangement procedure . . .49 50.4 Maximum height test arrangement procedure .49 51 Distribution Verication Extinguishment Tests with Automatic Extinguisher Unit .50 51.1 General .50 51.2 Test enclosures .51 51.3 Maximum area coverage, minimum height, a
23、nd maximum volume test arrangement procedure 52 51.4 Maximum height and maximum volume test arrangement procedure 52 52 Automatic Extinguisher Unit Automatic Operation Extinguishment Tests .53 52.1 General .53 52.2 Test enclosures .54 52.3 Test arrangement procedure 54 53 Elastomeric Parts Test .55
24、54 Stress Corrosion Cracking Test for Brass Parts 55 55 Aging Test Condensed Aerosol Generator .56 56 Aging Tests Plastic Materials .58 56.1 Air-oven aging test .58 56.2 Light and water test .58 57 Nameplate Exposure Tests .58A 58 Nameplate Adhesion Test 58B 59 Nameplate Abrasion Test 60 60 Locking
25、Device And Tamper Indicator Test 60 MANUFACTURING AND PRODUCTION TESTS 61 General 61 61.1 General .61 61.2 Aerosol-forming compound .61 61.3 Electrical initiators .61 61.4 Hydrostatic pressure test shells for pneumatic control assemblies .61 61.5 Gauge calibration test for pneumatic control assembli
26、es .61 61.6 Leakage test for pneumatic control assemblies .62 AUGUST 5, 2016 FIXED CONDENSED AEROSOL EXTINGUISHING SYSTEM UNITS - UL 2775 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARKINGS 62 General .62 INSTRUCTIONS 63 General 65 64
27、Owners Manual 65 65 Design, Installation, Operation, and Maintenance Instruction Manual 66 APRIL 3, 2014 FIXED CONDENSED AEROSOL EXTINGUISHING SYSTEM UNITS - UL 2775 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 T
28、hese requirements cover the construction and operation of xed condensed aerosol extinguishing system units inclusive of aerosol generating extinguishing system units and aerosol generating automatic extinguisher units intended for total ooding applications when installed, inspected, tested, and main
29、tained in accordance with the Standard for Fixed Aerosol Fire Extinguishing Systems, NFPA 2010. 1.2 Aerosol generating automatic extinguisher units do not have a manual means of operation, and are not intended: a) For use as a general substitute for aerosol generating extinguishing system units; or
30、b) For protection of re risks larger than those specied in the installation instructions for a single unit by using multiple units. 2 Components 2.1 Except as indicated in 2.2, a component of a product covered by this standard shall comply with the requirements for that component. 2.2 A component is
31、 not required to comply with a specic requirement that: a) Involves a feature or characteristic not required in the application of the component in the product covered by this standard; or b) Is superseded by a requirement in this standard. 2.3 A component shall be used in accordance with its rating
32、 established for the intended conditions of use. 2.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used o
33、nly under those specic conditions. APRIL 3, 2014 FIXED CONDENSED AEROSOL EXTINGUISHING SYSTEM UNITS - UL 2775 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3 Units of Measurement 3.1 The metric unit shall be designated as the official uni
34、t for purposes of this standard. Where values of measurement are specied in both SI and English units, either unit is used. In cases of dispute, the metric unit shall be used. 4 Undated References 4.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be
35、 interpreted as referring to the latest edition of that code or standard. 5 Glossary 5.1 For the purpose of this standard, the following denitions apply. 5.2 ACTUATING MECHANISM A device whose automatic or manual operation results in the physical discharge of extinguishing agent. 5.3 AEROSOL EXTINGU
36、ISHING AGENT A re-extinguishing medium consisting of gaseous matter and nely divided solid particles generally having approximate diameters in the order of microns that is produced by a combustion process of an aerosol-forming compound. 5.4 AEROSOL EXTINGUISHING AGENT QUANTITY For re tests, the requ
37、ired mass of solid aerosol-forming compound to achieve the extinguishing application density (for extinguishing system units) or design application density (for automatic extinguisher units) within the protected volume and within the specied discharge time. 5.5 AEROSOL-FORMING COMPOUND A solid mixtu
38、re of oxidant(s) and combustible component(s) included within a condensed aerosol generator that produces an aerosol extinguishing agent during combustion. 5.6 AUTOMATIC EXTINGUISHER UNIT A condensed aerosol generator with mounting bracket that: a) Has no manual method of actuation; b) Has an automa
39、tic thermal method of actuation; c) Is intended for use in normally unoccupied spaces; and d) Is limited to a single protected area as specied in 1.2. 5.7 CASING The external surface(s) of a condensed aerosol generator, excluding the surface(s) containing the discharge port(s). 5.8 CONDENSED AEROSOL
40、 GENERATOR (AEROSOL GENERATOR) A normally non-pressurized device incorporating an aerosol-forming compound that, when pyrotechnically actuated, produces an aerosol extinguishing agent that ows through a cooling mechanism within the device prior to exiting through the discharge port(s). 5.9 COOLANT A
41、 heat-absorbing process or medium included within a condensed aerosol generator that effectively reduces the temperature of an aerosol extinguishing agent prior to exiting through the discharge port(s). APRIL 3, 2014 FIXED CONDENSED AEROSOL EXTINGUISHING SYSTEM UNITS - UL 2775 7UL COPYRIGHTED MATERI
42、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.10 DESIGN APPLICATION DENSITY The minimum mass of a specic aerosol-forming compound per cubic meter of enclosure volume, including a safety factor, required for total ooding system design purposes. 5.11 DISCHARGE
43、 PORT The opening(s) on a condensed aerosol generator from which aerosol extinguishing agent exits providing uniform distribution: a) Over a specic area or b) Within a specic volume or c) Both. 5.12 DISCHARGE TIME The time interval between condensed aerosol generator activation and the end of aeroso
44、l extinguishing agent exiting from the discharge ports. 5.13 EXTINGUISHING APPLICATION DENSITY The minimum mass of a specic aerosol-forming compound per cubic meter of enclosure volume, excluding a safety factor, required to extinguish re in total ooding applications involving a particular fuel unde
45、r dened experimental conditions. 5.14 EXTINGUISHING SYSTEM UNIT One or more condensed aerosol generators with mounting brackets, actuation mechanisms, and other accessory equipment (as applicable) designed for automatic and manual actuation. 5.15 HEPTANE A commercial grade hydrocarbon used as a test
46、 fuel with the following characteristics: Minimum Initial boiling point 88C (190F) Maximum Dry point 100C (212F) Specic gravity (60F/60F) (15.6C/15.6C) 0.67 0.73 5.16 HOLD TIME For re tests, period of time during which an extinguishing agent is required to maintain an even distribution throughout th
47、e protected volume in an amount sufficient to prevent re-ignition. 5.17 IGNITION DEVICE Device that initiates the pyrotechnic reaction of the solid aerosol-forming compound. 5.18 METHOD OF ACTUATION, AUTOMATIC A means of actuation that results in extinguishing agent discharge without the necessity o
48、f human intervention, such as a thermal actuating mechanism. 5.19 METHOD OF ACTUATION, MANUAL A means of actuation that results in extinguishing agent discharge with the necessity of human intervention, either mechanically, pneumatically or electrically. 5.20 MOUNTING BRACKET A device intended to at
49、tach a pneumatic control assembly or condensed aerosol generator of an extinguishing system unit or automatic extinguisher unit to the enclosure structure and maintains the intended discharge port orientation of condensed aerosol generators during discharge. 5.21 OPERATING PRESSURE The pressure in a fully charged pneumatic control assembly at 21C (70F). AUGUST 30, 2017 FIXED CONDENSED AEROSOL EXTINGUISHING SYSTEM UNITS - UL 2775 8UL C
