BS 4N 100-1-1999 Aircraft oxygen nsystems and nequipment — nPart 1 Design and installation《飞行器供氧系统和设备 设计和安装》.pdf
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1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Part 1: Design and installationICS 49.090Aircraft oxygen systems and equipment BRITISH STANDARD AER
2、OSPACE SERIESBS 4N 100-1: 1999Incorporating Amendments Nos. 1 and 2BS 4N 100-1:1999This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 October 1999 BSI 2007ISBN 9
3、78 0 580 59299 4Amendments issued since publicationAmd. No. Date Comments15951 October 2005 New subclause 9.3 added.17217 31 July 2007 See forewordCivil Aviation AuthorityHealth and Safety ExecutiveMinistry of DefenceSociety of British Aerospace Companies Limited South Bank UniversityCommittees resp
4、onsible for this British StandardThe preparation of this British Standard was entrusted to Technical Committee ACE/38, Aircraft oxygen equipment, upon which the following bodies were represented:British AirwaysBritish Compressed Gases AssociationBS 4N 100-1:1999 BSI 2007ContentsPageCommittees respon
5、sible Inside front coverForeword ii1Scope 12 Normative references 13 Pressure ranges 14 General 25 Materials 36 Couplings and connections 37Filters 48 Vent and relief devices 49Presure joints 510 Moisture and ice accretion 511 Control knobs and switches 612 Strength of materials 613 Soldering, brazi
6、ng and welding 714 Cleaning processes 715 Installation of equipment 716 Identification marking 7Bibliography 8Table 1 Pressure ranges 1Table 2 Recommended clearances 2iBS 4N 100-1:1999iispecifies the general design and installation of oxygen systems and equipment for use on aircraft and ground suppo
7、rt equipment. It partially supersedes BS 3N 100 which is withdrawn upon publication of all seven parts.BS 4N 100 consists of the following seven separate parts: Part 1: Design and installation; Part 2: Tests for the compatibility of materials in the presence of oxygen; Part 3: Testing of equipment a
8、nd systems; Part 4: Guide to the physiological factors; Part 5: Guide to fire and explosion hazards associated with oxygen; Part 6: Guidance and recommendations on the selection of materials for use with oxygen; Part 7: Guide to cleaning, labelling and packaging.NOTE The latest revision of an aerosp
9、ace series standard is indicated by a prefix number.Compliance with a British Standard cannot confer immunity fromlegal obligations.Summary of pagesThis document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 8, an inside back cover and a back cover.The BSI copyright noti
10、ce displayed in this document indicates when the document was last issued.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to text carry the number of the amendment. For example, text altered by Amendment No. 2 is indicated by
11、#$. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.ForewordThis Part of BS 4N 100 has been prepared by Technical Committee ACE/38 and BSI 2007BS 4N 100-1:19991 ScopeThis part of BS 4N 100 specifies the genera
12、l design requirements for airborne oxygen breathing systems, including oxygen storage and generation equipment and ground support equipment. New tests are specified for compatibility of materials for use in the presence of oxygen. This part also provides some guidance and recommendations on the desi
13、gn and installation of items of equipment for use in oxygen systems.NOTE The guidance and recommendations contained herein may be used equally well in non-aerospace applications.In addition, for all equipment for aircraft oxygen systems, conformance to the relevant parts, sections and sub-sections o
14、f BS G 100 is specified.2 Normative referencesThe following normative documents contain provisions which, through reference in this text, constitute provisions of this part of this British Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not app
15、ly. For undated references the latest edition of the publication referred to applies.BS C 5, Specification for mating dimensions for liquid oxygen replenishment couplings.BS C 20, Specification for aircraft gaseous oxygen replenishment connection (inch dimensions).BS G 100-2-3, Specification for gen
16、eral requirements for electrical equipment and indicating instruments for aircraft Environmental conditions.BS G 100-2-3-3.3, Specification for general requirements for electrical equipment and indicating instruments for aircraft Mould growth.BS N 2, Specification for general requirements for constr
17、uction and performance of airborne chemical oxygen generators.BS N 100-2, Aircraft oxygen systems and equipment Tests for the compatibility of materials in the presence of oxygen.BS N 100-3, Aircraft oxygen systems and equipment Methods of testing equipment and systems.BS N 100-5, Aircraft oxygen sy
18、stems and equipment Guide to fire and explosion hazards associated with oxygen.BS N 100-6, Aircraft oxygen systems and equipment Guidance and recommendations on the selection of materials for use with oxygen.BS N 100-7, Aircraft oxygen systems and equipment Guide to cleaning, labelling and packaging
19、.BS M 23, Specification for an identification scheme for pipelines.3 Pressure rangesThe absolute pressure ranges used in this standard shall be specified as shown in Table 1.Table 1 Pressure rangesRange PressureMPa1)Pressure (pounds per square inch)(psi)Very low From 0 up to 0.4 From 0 up to 60Low F
20、rom 0.4 up to 1.5 From 60 up to 220Medium From 1.5 up to 4.1 From 220 up to 600High From 4.1 up to 20.7 From 600 up to 3 000Very high Above 20.7 Above 3 000 BSI 200711)1 MPa = 1 MN/m2 = 145.038 psi = 10 bar.BS 4N 100-1:19994 General4.1 Fixed systems shall be installed so that components and pipeline
21、s are as follows:b) located so that accumulation of oxygen will not cause a hazard;c) clear of moving controls and other mechanisms;d) bonded to earth.In addition, fixed systems shall also be installed so that components and pipelines are:1) routed to minimize the number of joints, the lengths of su
22、pply pipes and the number of sharp bends;2) protected against the ingress of grease and other contaminants;3) supported and protected against adverse effects of vibration and acceleration.NOTE Parts of a system subject to medium, high or very high oxygen pressures, located in crew and passenger comp
23、artments, shall be either routed or physically protected to prevent accidental damage.4.2 Thin sections or foils shall not be used except for filters (see clause 7) or similar features. There shall be no sharp edges or burrs within the oxygen stream.NOTE Under high velocity oxygen flow conditions, s
24、harp edges, etc. may be ignited by high temperatures being generated.4.3 Items fitted to or adjacent to personnel shall have no sharp corners, edges or protrusions which could cause personal injury or catch on clothing or equipment.4.4 Chemical oxygen generators and their installation shall conform
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