SANS 11105-2008 Small craft - Ventilation of petrol engine and or petrol tank compartments《小艇 汽油机和 或汽油柜舱室的通风》.pdf

1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21985-7 SANS 11105:2008 Edition 1 ISO 11105:1997 Edition 2SOUTH AFRICAN NATIONAL STANDARD Small craft Ventilation of petrol engine and/or

4、petrol tank compartments This national standard is the identical implementation of ISO 11105:1997, and is adopted with the permission of the International Organization for Standardization. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001 Tel: +27 12 42

5、8 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 11105:2008 Edition 1 ISO 11105:1997 Edition 2 Table of changes Change No. Date Scope National foreword This South African standard was approved

6、 by National Committee SABS TC 188, Small craft, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in September 2008. This standard may only be used and printed by approved subscription and freemailing

7、clients of the SABS.INTERNATIONAL STANDARD IS0 11105 Second edition 1997-05 15 Small craft - Ventilation of petrol engine and/or petrol tank compartments Navires de plaisance - Ventilation des compafliments moteur ZI essence etloer rhervoir ti essence Reference number IS0 11105: 1997(E) SANS 11105:2

8、008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.IS0 11105:1997(E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing Internation

9、al Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non- governmental, in liaison with ISO

10、, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Inte

11、rnational Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 11105 was prepared by Technical Committee tSO/TC 188, Small craft. This second edition cancels and replaces the first edition (IS0 11105:1995), definition 3.2, subclauses 4.3.1 and 4

12、.3.2, of which have been deleted. Additionally, subclause 4.4 and figure 1 have been amended. Annex A of this International Standard is for information only. 0 IS0 1997 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any me

13、ans, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 l Cl-l-121 1 Gen a=400net; p=iso; o=isocs; s=central Printed in Switzerland ii SANS 11105:2008This standard may only b

14、e used and printed by approved subscription and freemailing clients of the SABS.INTERNATIONAL STANDARD o Is0 IS0 11105:1997(E) Small craft - Ventilation of petrol engine and/or petrol tank compartments 1 Scope This International Standard specifies requirements for ventilation of petrol engine and pe

15、trol tank compartments in small craft of up to 24 m length of hull, having petrol engines for propulsion, electrical generation or mechanical power, to prevent accumulation of explosive gases in these compartments. Personal watercraft are not covered. 2 Normative references The following standards c

16、ontain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to invest

17、igate the possibility of applying the most recent editions of the standards listed below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 8846:1990, Small craft - Electrical devices - Protection against ignition of surrounding flammable gases. IS0 9097:1991,

18、 Small craft - Electric fans. IS0 11192:- 1 ), Small craft - Graphical symbols. 3 Definition For the purposes of this International Standard, the following definition applies. 3.1 open to atmosphere: Compartment or space having at least 0,34 m2 of permanent open area directly exposed to the atmosphe

19、re for each cubic metre of net compartment volume. 4 General requirements 4.1 Natural ventilation shall be provided in petrol engine and petrol tank compartments in accordance with clause 5. 4.2 Powered ventilation shall be provided in petrol engine compartments in accordance with clause 6. 4.3 The

20、ventilation duct sizes and airflow requirements shall be calculated based on compartment volumes. 1) To be published. 1 SANS 11105:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.IS0 11105: 1997(E) IS0 4.4 Compartments containing petrol eng

21、ines and/or petrol tanks shall be sealed from enclosed accommodation spaces Separating structures are regarded as being sealed if they fulfil the following requirements: a) the boundaries are welded, brazed, glued, laminated or the like; b) penetrations for cables, piping etc. are closed by fittings

22、 and/or sealants; C access openings, for example doors and hatches, are equipped with fittings and are secured. The effectiveness of the seal can be assessed either by consulting the manufacturers documentation or by visual inspection during construction. 4.5 No ventilation is required in petrol eng

23、ine or petrol tank compartments which are open to the atmosphere as defined in 3.1. 4.6 Neither supply nor exhaust ducts shall open into an accommodation space. 4.7 Electrical components installed in petrol engine and petrol tank compartments and any connecting compartments, not open to the atmosphe

24、re, shall be ignition-protected in accordance with IS0 8846. 5 Natural ventilation systems 5.1 Unless open to the atmosphere, each compartment in a craft shall have a natural ventilation system if it contains a permanently installed petrol engine; or - it contains a permanently installed petrol tank

25、 and an sending unit; or electrical component other than the petrol level gauge - it is designated to contain a portable petrol tank. 52 . Natural ventilation shall be achieved by an airflow in a compartment by the following: - a supply opening or duct from the atmosphere; and - an exhaust opening o

26、r duct to the atmosphere. Each exhaust opening or exhaust duct shall originate in the lower one-third of the compartment. Each supply opening or supply duct normal accumulation of bilge water. and each exhaust opening or exhaust duct in a compartment shall be above the Compartment air intake and exh

27、aust duct openings shall be separated by at least 600 mm, compartment dimensions permitting. 5.3 Except as provided in 5.4, the combined area of supply openings or supply ducts, and the combined area of exhaust openings or exhaust ducts shall have a minimum internal cross-sectional area calculated a

28、s follows: A = 3 300 In (V/0,14) where A is the minimum combined internal cross-sectional area of the openings or ducts, in square millimetres; V is the net compartment volume equal to the total compartment volume minus the volume of permanently installed components in it, in cubic metres. A corresp

29、onding graph is given in figure 1. SANS 11105:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.IS0 11105:1997(E) “E 14000 E z ii 12 000 F .- 5 0“ 10 000 8 000 6000 4000 2000 2 3 4 5 Compartmentvolume,m3 Figure 1 - Natural ventilation opening

30、 size 5.4 The minimum internal cross-sectional area of each supply opening or duct, and exhaust opening or duct shall exceed 3 000 mm? 5.5 The minimum internal cross-sectional area of terminal fittings for flexible ventilation ducts installed to meet the requirements of 5.3 shall not be less than 80

31、 % of the required internal cross-sectional area of the flexible ventilation duct. 5.6 The exhaust of the natural ventilation system may be part of the powered ventilation system. 6 Powered ventilation systems 6.1 Unless open to the atmosphere, each compartment containing a permanently installed pet

32、rol engine shall be ventilated by removing air from the compartment to the atmosphere outside the craft by an exhaust blower system. 6.2 Each exhaust blower or combination of blowers shall be rated at an airflow capacity 9r not less than that given in table 1. Blower rating shall be determined accor

33、ding to IS0 9097. A corresponding graph is given in figure 2. Table 1 V m3 3 4r 3 m /min IS 1,5xv 0,5xv+3 6.3 Each intake duct for an exhaust blower shall be in the lower one-third of the compartment and above the normal level of accumulated bilge water. 6.4 More than one exhaust blower may be used

34、in combination to meet the requirements of clause 6. SANS 11105:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.IS0 11105:1997(E) c .- E “E Figure 2 - Powered ventilation blower capacity 6.5 Each craft that is required to have an exhaust bl

35、ower shall have a label that - is located as close as practicable to each ignition switch; - is in plain view of the operator; - has the symbols in accordance with IS0 11192, depicted in figure 3, or at least the following information in a language acceptable in the country of sale: WARNING - Operat

36、e blower for 4 min before starting engine. I 1 I 2 1 3 I NOTE - “4 min” shall be at least 5 mm high. Figure 3 -Symbols 7 Owners manual The following information should be included in the owners manual: - explanation of symbols; - the statement “Do not obstruct or modify the ventilation system”. SANS

37、 11105:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.Annex A (informative) Bibliography ISO11105:1997(E) This International Standard is intended to provide protection against explosion and fires. It is important to realize that this Inter

38、national Standard by itself is not intended to achieve this purpose. The manufacturer also needs to comply with additional standards related to protection against the same possible hazards. These additional standards are listed below, with a brief description of their contents. For complete understa

39、nding of the requirements, the manufacturer needs to refer to the actual standard. Compliance with all these International Standards will ensure a high level of safety in all craft, particularly in those using petrol or LPG. I IS0 10088:1992, Small craft - Permanently installed fwek systems and fixe

40、d fwel tanks Individual fuel tanks, 100 % pressure-tested. Non-metallic fuel tanks, fire-tested. Fire-resistant flexible fuel hoses. Fire-test for non-metallic fuel system components. Corrosion-resistant fuel tank materials. Galvanically compatible metallic parts. Anti-siphon protection requirements

41、. Double clamping of fuel fill hoses. Electrically ground all metallic parts. 100 % pressure test of entire fuel system. 2 IS0 10133:1994, Small craft - Electrical systems - Extra-low-voltage d.c. installations All components fused. All conductors insulated. All electrical components installed in bi

42、lges or other compartments that may contain explosive gas are ignition- protected. Installation requirements for batteries and cables. Requirements for ring or captive spade terminals on conductor connectors. 3 IS0 8846:1990, Small craft - Electrical devices - Protection against ignition of surround

43、ing flammable gases All components in petrol engines, petrol and LPG tank compartments to be ignition-protected to prevent open sparks. This applies to the entire engine, as well as all electrical contacts, commutators, brushes, collector rings, switches, relays, generators, fuses, distributors, eng

44、ine-cranking motors, propulsion trim motors, etc. The Standard further requires components to withstand any operating conditions of the device, including the maximum achievable overload up to 400 % of the rated current (circuit-breakers, switches and the like) and a stalled rotor condition for any m

45、otor with the circuit protected in an overcurrent protective device specified by the product manufacturer. 4 IS0 7840:1994, Small craft - Fire-resistant fuel hoses SANS 11105:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.IS0 11105:1997(E)

46、 IS0 Only fire-resistant fuel hoses may be used in petrol engine and petrol fuel tank compartments. A flexible hose to be used between the engine and any solidly mounted metallic line to eliminate vibration failure. The hose to withstand fire, pressure, vacuum collapse, ozone and other environments,

47、 and have minimal fuel permeation. 5 IS0 9097:1991, Small craft - Electric fans 6 IS0 8849:1990, Small craft - Electrically opera ted bilge-pumps All components, if installed in the petrol engine, petrol or LPG tank compartment need to be ignition-protected, have all wiring insulated, be suitable fo

48、r a marine environment, and not create a hazard when the motor is overloaded or stalled. 7 IS0 10239:- *), Small craft - Liquefied petroleum gas (L PG) systems System to withstand temperature extremes. Appliances approved and installed only in ventilated compartments, tanks and pressure regulators i

49、n lockers identified and vented with overboard drains. Meet specifications for fuel lines and their supports. Appliance well secured with flame failure shutoff control device for each appliance. Warning labels on appliances. Pressure test on installed system. Any electrical device in lockers, designated for LPG storage, ignition-protected. 8 IS0 9094-I :- *), Small craft - Fire protection - Part I: Craft with a hull length of up to and including 15 m 9 IS0 9094-2:- *), Small craft - Fire protection - Part 2: Craft of more than 15 m and up to and including 24