1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2127 Inert Gas Clean Agent Extinguishing System UnitsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUT
2、HORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Inert Gas Clean Agent Extinguishing System Units, UL 2127 Second Edition, Dated July 13, 2012 Summary of Topics These revisions to ANSI/UL 2127 are being issued to add requirements for the removal
3、of electric actuators. The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated July 25, 2014. 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, mechani
4、cal photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is 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
5、 special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings, 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 damag
6、e. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless 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, cl
7、aim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/
8、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that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. The
9、 following table lists the future effective dates with the corresponding reference. SEPTEMBER 30, 2014 UL 2127 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Future Effective Date Reference January 1, 2016 Paragraphs 9.6, 9.7, 59.2(j), a
10、nd 59.3 SEPTEMBER 30, 2014 UL 2127 tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JULY 13, 2012 (Title Page Reprinted: September 30, 2014) 1 UL 2127 Standard for Inert Gas Clean Agent Extinguishing System Units First Edition March, 1999
11、Second Edition July 13, 2012 This ANSI/UL Standard for Safety consists of the Second Edition including revisions through September 30, 2014. The most recent designation of ANSI/UL 2127 as an American National Standard (ANSI) occurred on September 30, 2014. ANSI approval for a standard does not inclu
12、de 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 (CSDS) a
13、t 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 and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2014 UND
14、ERWRITERS LABORATORIES INC. ANSI/UL 2127-2014UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 27, 2014 INERT GAS CLEAN AGENT EXTINGUISHING SYSTEM UNITS - UL 2127 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER R
15、EPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .6 2 General 6 3 Glossary .6 4 Components 8 5 Design Manual .8 6 Owners Manual 9 CONSTRUCTION 7 General .10 8 Electrically Operated Alarms .10A 9 Controls and Indicators 10A 10 Pressure Vessels 10B 11 Pressure Relie
16、f Devices .12 12 Gaskets and O Rings 12 13 Pressurization Level and Filling Volume .12 14 Pressure Gauges .12 15 Puncturing Mechanisms .13 16 Electrically Operated Valves and Pressure Switches 13 17 Clean Agents .13 18 Pressure Reducing Devices 14 19 Polymeric Materials and Nonmetallic Parts .14 20
17、Anti-Recoil Devices .14 21 Pressure Switches .14A PERFORMANCE 22 General 14A 23 Discharge Test 14A 24 Valve Leakage Test .14B 25 Hydrostatic Pressure Test 14B 26 30-Day Elevated Temperature Test .15 27 Temperature Cycling Test .17 28 Salt Spray Corrosion Test .17 29 500 Cycle Operation Test 18 30 Ti
18、me Delay Verication Test .19 31 Pressure-Operated Alarm Test .19 32 One-Year Time Leakage Test 20 33 Mounting Device Test .20 34 Class A and B Fire Clean Agent Extinguishment Tests 20 34.1 General test parameters 20 34.2 Class A re extinguishment tests .21 34.3 Class B re extinguishment tests .26 35
19、 Nozzle Distribution Verication Tests 27 35.1 General .27 35.2 Test enclosure .28 35.3 System arrangement .28 35.4 Minimum room height/nozzle area coverage test arrangement .29 MARCH 27, 2014 INERT GAS CLEAN AGENT EXTINGUISHING SYSTEM UNITS - UL 2127 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTH
20、ER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 35.5 Maximum room height test arrangement 29 36 Verication of Flow Calculation Method Test .29 37 Equivalent Length Determination .31 38 High Pressure Discharge Test 31 39 Flexible Hose Low Temperature Test .32 40 Operation Test of Manual Ac
21、tuators and Manual Pull Stations 32 41 Pneumatic Operation Test .32 42 Pressure Relief Tests .33 43 Calibration Test Gauges .33 44 Burst Strength Test Gauges 34 45 Overpressure Test Gauges .34 46 Impulse Test Gauges 34 47 Pressure Gauge Relief Test 35 48 Water Resistance Test Gauges .35 49 Elastomer
22、ic Parts Test 35 50 10-Day Moist Ammonia Air Stress Cracking Test .36 51 Aging Tests Plastic Materials 36 51.1 Air-oven aging test .36 51.2 Light and water test 37 52 Nameplate Exposure Tests 38 53 Nameplate Adhesion Test .38 54 Nameplate Abrasion Test 39 MANUFACTURING AND PRODUCTION TESTS 55 Genera
23、l 39 55.1 General .39 55.2 Hydrostatic pressure test shells 39 55.3 Gauge calibration test 40 55.4 Leakage test .40 55.5 Clean agent .40 MARKING 56 General 40 57 Manuals .42 58 Placards .42 INSTALLATION INSTRUCTIONS 59 Installation, Operation, and Maintenance Instruction Manual .42 SUPPLEMENT SA - M
24、ARINE-TYPE INERT GAS CLEAN AGENT EXTINGUISHING SYSTEM UNITS SA1 Scope SA1 SA2 Installation, Operation, and Maintenance Instruction Manual SA1 SA3 Wiring SA1 SA4 Controls and Indicators .SA1 SA5 Pressure Vessels SA2 SA6 Salt Spray Corrosion Test SA2 SA7 Vibration and Shock Resistance Test SA2 JULY 13
25、, 2012 INERT GAS CLEAN AGENT EXTINGUISHING SYSTEM UNITS - UL 2127 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SA7.1 General SA2 SA7.2 Vibration test .SA3 SA7.3 Shock resistance test SA3 SA8 Area Coverage Test .SA4 SA9 Aging Tests Polyme
26、ric Materials SA4 SA10 Marking .SA4 JULY 13, 2012 INERT GAS CLEAN AGENT EXTINGUISHING SYSTEM UNITS - UL 2127 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover the construction and operation of
27、 inert gas clean agent re extinguishing system units intended to be installed, inspected, tested, and maintained in accordance with the Standard for Clean Agent Fire Extinguishing Systems, NFPA 2001. 2 General 2.1 Values stated without parentheses are the requirement. Values in parentheses are expla
28、natory or approximate information. 2.2 Where these requirements reference extinguishing system unit, the requirements also apply to automatic extinguisher units unless specically noted otherwise. 3 Glossary 3.1 For the purpose of these requirements, the following denitions apply. 3.2 AGENT TIME IMBA
29、LANCE A situation in which the start of agent discharge at a nozzle occurs after agent discharge has been completed at any other nozzle in the system. 3.3 CLEAN AGENT Electrically nonconducting, volatile, or gaseous re extinguishant that does not leave a residue upon evaporation. The word agent as u
30、sed in this document shall mean clean agent unless otherwise indicated. 3.4 CYLINDER/VALVE ASSEMBLY A container that incorporates a valve and which provides storage of the extinguishing agent and expellant (when applicable) until the valve is actuated. When actuated, the valve releases the agent int
31、o the distribution network of the extinguishing system. 3.5 DISCHARGE NOZZLE A device that is used to uniformly distribute the extinguishing agent: a) Over a specic area; or b) Within a specic volume; or both. 3.6 DISCHARGE TIME The time required to discharge from the nozzle 95 percent of the agent
32、mass at 70F (21C). 3.7 DISCHARGE TIME, MAXIMUM The longest discharge time specied by the manufacturer; but, not greater than 120 seconds. 3.8 ENGINEERED SYSTEM A system that requires individual calculation and design, in accordance with the extinguishing system unit manufacturers instructions, to de
33、termine the ow rates, nozzle pressures, quantities of extinguishing agent, and number and types of nozzles for effective extinguishing agent distribution and re coverage. 3.9 EXTINGUISHING SYSTEM UNIT Identied components that are assembled into systems for the discharge of an extinguishing agent thr
34、ough xed piping and nozzles for the purpose of extinguishing res. JULY 13, 2012 INERT GAS CLEAN AGENT EXTINGUISHING SYSTEM UNITS - UL 2127 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.10 INERT GAS CLEAN AGENT A clean agent that contain
35、s as primary components one or more of the gases helium, neon, argon, or nitrogen. Inert gases that are blends of gases may also contain carbon dioxide as a secondary component. 3.11 MANUAL MEANS OF ACTUATION A means of system actuation in which the system operator initiates system discharge, either
36、 mechanically or electrically. 3.12 MASTER VALVE A discharge valve that upon automatic or manual actuation operates other valves or devices in an extinguishing system. 3.13 MINIMUM DESIGN NOZZLE PRESSURE Typically, the minimum average pressure for a nozzle present during system discharge. 3.14 OPERA
37、BLE PRESSURE RANGE The pressure range corresponding to the pressures in the storage container at the specied minimum and maximum temperatures for which the extinguishing system unit is intended to be operable. 3.15 OPERATING PRESSURE The pressure in a fully charged storage container at 70F (21C). 3.
38、16 PRE-ENGINEERED SYSTEM A system that is tested in accordance with the limitations prescribed by the manufacturer for maximum and minimum pipe lengths, accessories, number of ttings, number and types of nozzles and nozzle placement, maximum areas, volumes, or both areas and volumes of protection. 3
39、.17 PRESSURE REDUCING DEVICE A device which limits pressure downstream from the manifold. 3.18 PROOF TEST PRESSURE The factory test pressure of each cylinder used to evaluate cylinder leakage and construction integrity. For Department of Transportation (DOT) approved cylinders, the factory test pres
40、sure is specied in the appropriate DOT specication. 3.19 SELECTOR (DIRECTIONAL) VALVE A device that is installed in the piping of an extinguishing system and that directs the ow of extinguishing agent to the appropriate protected volume. This valve is used only when more than one volume is being pro
41、tected by a single extinguishing system. 3.20 TOTAL FLOODING SYSTEM A system consisting of a supply of inert gas clean agent, arranged to discharge the agent into the intended protected volume and to ll that volume to an effective agent concentration. JULY 13, 2012 INERT GAS CLEAN AGENT EXTINGUISHIN
42、G SYSTEM UNITS - UL 2127 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 4 Components 4.1 Except as indicated in 4.2, a component of a product covered by this standard shall comply with the requirements for that component. 4.2 A component i
43、s 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. 4.3 A component shall be used in accordance with its ratin
44、g established for the intended conditions of use. 4.4 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
45、only under those specic conditions. 5 Design Manual 5.1 An engineered clean agent extinguishing system unit shall be provided with a design manual that references the limitations determined by the calculation method and includes the following items: a) A description of the general principles utilize
46、d in the calculation method; b) Limitation on the cylinder volume to pipe volume ratio; c) Limitations on minimum and maximum pipeline ow rates; d) Limitations regarding the types of tee splits (for example, bullhead or side outlet) and attached ttings. In addition, the intended range of ow splits a
47、nd information on the orientation, installation, and critical length for each type of split; e) Limitations on conditions that result in an agent time imbalance condition at each nozzle, for example, limits on the variance for agent arrival time and runout time between nozzles; f) Minimum design noz
48、zle pressure; g) Method for determining nozzle orice area and selection of nozzle, as well as nozzle ow information, limits for minimum and maximum orice area in relation to the attached pipe area; h) Nozzle area coverage limitations and information on location of nozzle in the protected area; i) Fi
49、lling weights or volumes for each size container; j) Minimum and maximum design discharge time; k) Operating temperature range limitations; l) Description of the system design procedure and a sample problem indicating all computer input required and computer output information calculated; JULY 13, 2012 INERT GAS CLEAN AGENT EXTINGUISHING SYSTEM UNITS - UL 2127 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTR
