UL 1110-1997 UL Standard for Safety Marine Combustible Gas Indicators《船舶燃气指示器》.pdf

1、STD-UL LLLO-ENGL 1997 9275795 0707829 8T UL 1110 STD-UL 1LLO-ENGL 11797 9275795 0707630 6T1 Underwriters Laboratories inca, Northbrook, Illinois. (847) 272-8800 Melville, New York. (51 6) 271 -6200 Santa Clara, Caiifomia (408) 985-2400 Research Triangle Park, North Carolinae(919) 549-1400 Camas, Was

2、hington* (360) 817-5500 Underwriters Laboratories Inc., founded in 1894, is chartered as a not-for-profit organization without capital stock, under the laws of the State of Delaware, to establish, maintain, and operate laboratories for the examination and testing of devices, systems and materials to

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6、chnological advances. A not-for-profit organization dedicated to public safety and committed to quality service STDSUL 1310-ENGL 1777 a 7275795 0707833 738 September 4,1997 - UL Il10 tri Underwriters Laboratories Inc. (UL) 333 Pfingsten Road Northbrook, IL 60062-2096 UL Standard for Safety Marine Co

7、mbustible Gas Indicators. UL 11 10 for Third Edition, Dated September 4, 1997 The master for this Standard at ULs Northbrook Office is the official document insofar as it relates to a UL service and the compliance of a product with respect to the requirements for that product and service, or if ther

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22、ose paragraphs, sections, tables, figures, 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 that have a future effective date are located after the Standard, and are pr

23、eceded by a “SUPERSEDED REQUIREMENTS“ notice. New product submittals made prior to a specified future effective date will be judged under all of the requirements in this Standard including those requirements with a specified future effective date, unless the applicant specifically requests that the

24、product be judged under the current requirements. However, if the applicant elects this option, it should be noted that compliance with all the requirements in this Standard will be required as a condition of continued Listing and Follow-Up Services after the effective date, and understanding of thi

25、s should be signified in writing. Copyright 1997 Underwriters Laboratories Inc. SEPTEMBER 4,1997 1 UL 1110 Standard for Marine Combustible Gas Indicators First Edition - September, 1976 Second Edition - February, 1988 Third Edition September 4, 1997 An effective date included as a note immediately f

26、ollowing certain requirements is one established by Underwriters Laboratories Inc. Revisions of this standard will be made by issuing revised or additional pages bearing their date of issue. A UL Standard is current only if it incorporates the most recently adopted revisions, all of which are itemiz

27、ed on the transmittal notice that accompanies the latest set of revised requirements. ISBN 0-7629-0216-7 COPYRIGHT 1976,1997 UNDERWRITERS LABORATORIES INC. 2 STD-UL LLLO-ENGL 1797 D 9275775 0707834 447 SEPTEMBER 4,1997 MARINE COMBUSTIBLE GAS INDICATORS - UL 1110 No Text on This Page STD.UL LLLO-ENGL

28、 1777 m 9275775 0707835 383 m SEPTEMBER 4. 1997 MARINE COMBUSTIBLE GAS INDICATORS . UL 11 IO 3 CONTENTS FOREWORD INTRODUCTION 1 Scope . 5 2 Glossary 5 3 General 5 CONSTRUCTION 4 Materials 6 5 Operation . 6 6 Assembly . 7 PERFORMANCE 7 General 9 8 Chemical Resistance Test . 9 9 Temperature Tests . 10

29、 10 Vibration Test IO 11 ShockTest 10 12 Operational Tests . 11 13 Sait-Spray Corrosion Test . 12 MANUFACTURING AND PRODUCTION TESTS 14 Reliability Test . 12 MARKING 15 General 13 16 Installation Instructions . 13 STD-UL LLLO-ENGL L997 m 9275795 070783b 2LT 4 MARINE COMBUSTIBLE GAS INDICATORS - UL 1

30、110 SEPTEMBER 4,1997 FOREWORD A. This Standard contains basic requirements for products covered by Underwriters Laboratories Inc. (UL) under its Follow-Up Service for this category within the limitations given below and in the Scope section of this Standard. These requirements are based upon sound e

31、ngineering principles, research, records of tests and field experience, and an appreciation of the problems of manufacture, installation, and use derived from consultation with and information obtained from manufacturers, users, inspection authorities, and others having specialized experience. They

32、are subject to revision as further experience and investigation may show is necessary or desirable. B. The observance of the requirements of this Standard by a manufacturer is one of the conditions of the continued coverage of the manufacturers product. C. A product which complies with the text of t

33、his Standard will not necessarily be judged to comply with the Standard if, when examined and tested, it is found to have other features which impair the level of safety contemplated by these requirements. D. A product employing materials or having forms of construction differing from those detailed

34、 in the requirements of this Standard may be examined and tested according to the intent of the requirements and, if found to be substantially equivalent, may be judged to comply with the Standard. E. UL, in performing its functions in accordance with its objectives, does not assume or undertake to

35、discharge any responsibility of the manufacturer or any other party. The opinions and findings of UL represent its professional judgment given with due consideration to the necessary limitations of practical operation and state of the art at the time the Standard is processed. UL shall not be respon

36、sible to anyone for the use of or reliance upon this Standard by anyone. UL shall not incur any obligation or liability for damages, including consequential damages, arising out of or in connection with the use, interpretation of or reliance upon this Standard. F. Many tests required by the Standard

37、s of UL are inherently hazardous and adequate safeguards for personnel and property shall be employed in conducting such tests. STD-UL LLLO-ENGL 1777 m 7275775 0707837 L5b 9 SEPTEMBER 4,1997 MARINE COMBUSTIBLE GAS INDICATORS - UL 1 I1 O 5 INTRODUCTION 1 Scope 1.1 These requirements cover electricall

38、y operated marine combustible gas indicating equipment for use in boats. 1.2 Marine combustible gas indicators are intended for permanent installation and for installation, maintenance, and use in accordance with the applicable requirements of the Standard for Fire Protection of Pleasure and Commerc

39、ial Motor-Craft, NFPA 302, or the American Boat and Yacht Council, Inc. 1.3 These requirements cover ignition-protected equipment that may be used on boats under 65 feet (19.8 m) in length, but do not cover marine combustible gas detectors intended for use in hazardous locations aboard vessels subje

40、ct to the U. S. Coast Guard electrical engineering regulations. 1.4 A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this Standard, and that involves a risk of fire, electric shock, or injury to persons sh

41、all be evaluated using the appropriate additional component and end-product requirements as required to maintain the level of safety as originally anticipated by the intent of this Standard. A product whose features, characteristics, components, materials, or systems conflict with specific requireme

42、nts or provisions of this Standard is not judged to comply with this Standard. Where appropriate, revision of requirements are proposed and adopted in conformance with the methods employed for development, revision, and implementation of this Standard. 2 Glossary 2.1 For the purpose of this standard

43、, the following definitions apply 2.2 LOWER EXPLOSIVE LIMIT - The lowest concentration of a flammable gas or vapor in aK that will burn or explode. 2.3 MARINE COMBUSTIBLE GAS INDICATOR -One or more unit assemblies of electrical components that are constructed to detect and indicate the presence of a

44、 combustible gas or vapor aboard boats. 3 General 3.1 Components 3.1.1 Except as indicated in 3.1.2, a component of a product covered by this standard shall comply with the requirements for that component. See Appendix A for a list of standards covering components generally used in the products cove

45、red by this standard. 3.1.2 A component is not required to comply with a specific 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. 3.1.3 A compone

46、nt shall be used in accordance with its recognized rating established for the intended conditions of use. 6 MARINE COMBUSTIBLE GAS INDICATORS - UL 11 1 O SEPTEMBER 4,1997 3.1.4 Specific components are recognized as being incomplete in construction features or restricted in performance capabilities.

47、Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specified limits, and shall be used only under those specific conditions for which they have been recognized. 3.2 Units of measurement 3.2.1 Unless otherwise indicated, all voltage and curr

48、ent values mentioned in this standard are rms. 3.2.2 If a value for measurement is followed by a value in other units in parentheses, the first stated value is the requirement. CONSTRUCTION 4 Materials 4.1 A material used in an indicator shall be acceptable for use in a marine environment. 4.2 A met

49、allic component of an indicator that is necessary for the indicator to perform its intended function and that may be exposed to corrosive conditions, such as a bilge combustible gas indicator, shall be fabricated of metals or metal alloys that are inherently resistant to corrosion in salt atmospheres (see Salt-Spray Corrosion Test, Section 13). Other metallic components shall be provided with a corrosion-resistant coating or equivalently protected against corrosion. Metal combinations shall be galvanically compatible. 5 Operation 5.1 An indicator shall be constructed