BS-G-198-5-1997.pdf
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1、BRITISH STANDARD AEROSPACE SERIES BS G 198-5:1997 Incorporating Amendment No. 1 Sleeves and moulded components for aircraft electric cables and equipment wires Part 5: Specification for heat shrinkable moulded shapes ICS 49.060 Licensed Copy: London South Bank University, London South Bank Universit
2、y, Sat Dec 09 02:53:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS G 198-5:1997 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 August 1997 BSI 16 November 2005 The
3、 following BSI references relate to the work on this standard: Committee reference ACE/6 Draft for comment 94/705034 DC ISBN 0 580 26858 6 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee ACE/6, Aerospace avionic, electric
4、al and fibre optic technology, upon which the following bodies were represented: British Airways British Cable Makers Confederation British Rubber Manufacturers Association Civil Aviation Authority (Airworthiness Division) Federation of the Electronics Industry Ministry of Defence Society of British
5、 Aerospace Companies Amendments issued since publication Amd. No.DateComments 1596116 November 2005Changes to Clause 7, Table 7, Table 8 and Figure 2 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:53:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS G 198-5:1
6、997 BSI 16 November 2005i Contents Page Committees responsibleInside front cover Forewordiii 1Scope1 2References1 3Information to be supplied by the purchaser1 4Materials and characteristics2 5Colour2 6Finish2 7Dimensions2 8Shelf life2 9Type testing3 10Production routine and quality testing4 11Tests
7、 and requirements6 12Marking and packaging17 Annex A (informative) Storage recommendations41 Annex B (normative) Method for the determination of smoke index41 Annex C (normative) Method for the determination of combustion products index46 Annex D (normative) Compatibility test49 Annex E (informative
8、) Compatibility guide52 Annex F (informative) Guide to installation53 Figure 1 Style A (lipped straight bottle with short body)19 Figure 2 Style B (lipped straight bottle with medium body)20 Figure 3 Style C (lipped straight bottle with long body)21 Figure 4 Style D (non-lipped straight bottle)22 Fi
9、gure 5 Style E (lipped straight bottle with long tail)23 Figure 6 Style F (lipped right angle boot)24 Figure 7 Style G (non-lipped right angle boot)25 Figure 8 Style H (lipped right angle boot with long tail)26 Figure 9 Style I (lipped right angle boot with longer tail)28 Figure 10 Style J (lipped s
10、traight bottle with longer tail)29 Figure 11 Style K (non-lipped straight long tail boot)30 Figure 12 Style L transitions (“T” junction)31 Figure 13 Style M transitions (30/45 junction)32 Figure 14 Style N transitions (“Y” junction 45 low profile)33 Figure 15 Style O (straight, high ratio lipped boo
11、t)34 Figure 16 Style P transitions (“Y” junction)35 Figure 17 Style R transitions (three branched outlets)36 Figure 18 Style S transitions (four branched outlets)37 Figure 19 Style T D sub-miniature boot straight)38 Figure 20 Style U D sub-miniature boot right angle) (longitudinal)39 Figure 21 Style
12、 V D sub-miniature boot right angle (across width)40 Figure B.1 Schematic details of burner for smoke index test43 Figure B.2 Schematic front view of smoke index test piece holder44 Figure D.1 Schematic arrangement for peel testing51 Figure F.1 Sequence of operations for installation of a heat-shrin
13、kable straight boot55 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:53:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS G 198-5:1997 ii BSI 16 November 2005 Page Figure F.2 Sequence of operations for installation of a heat-shrinkable right angled boot56 Tab
14、le 1 Types of heat-shrinkable moulded shape materials2 Table 2 Materials and characteristics3 Table 3 Type tests4 Table 4 Production routine tests5 Table 5 Production quality tests5 Table 6 List of test fluids17 Table 7 Dimensions of style A19 Table 8 Dimensions of style B20 Table 9 Dimensions of st
15、yle C21 Table 10 Dimensions of style D22 Table 11 Dimensions of style E23 Table 12 Dimensions of style F24 Table 13 Dimensions of style G25 Table 14 Dimensions of style H27 Table 15 Dimensions of style I28 Table 16 Dimensions of style J29 Table 17 Dimensions of style K30 Table 18 Dimensions of style
16、 L31 Table 19 Dimensions of style M32 Table 20 Dimensions of style N33 Table 21 Dimensions of style O34 Table 22 Dimensions of style P35 Table 23 Dimensions of style R36 Table 24 Dimensions of style S37 Table 25 Dimensions of style T38 Table 26 Dimensions of style U39 Table 27 Dimensions of style V4
17、0 Table E.1 Bonding adhesives52 Table E.2 Guide to adhesive compatibility52 List of references58 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:53:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS G 198-5:1997 BSI 16 November 2005iii Foreword This Part of BS
18、G 198 has been prepared by Technical Committee ACE/6 and specifies requirements for heat-shrinkable moulded shape materials for aircraft electric cables and insulated equipment wires. BS G 198 is published in the following Parts. Part 1: Specification for elastomeric sleeves for binding and identifi
19、cation; Part 2: Specification for slip-on sleeves for identification purposes; Part 3: Specification for heat-shrinkable sleeving for binding, insulation and identification; Part 4: Specification for heat-shrinkable sleeving for binding and insulation; Part 5: Specification for heat-shrinkable mould
20、ed shapes. It is envisaged that there will be a further Part on heat-shrinkable dual wall sleeves. This Part of BS G 198 specifies requirements for heat-shrinkable moulded shapes in a range of configurations and materials suitable for insulation, environmental sealing, mechanical protection and stra
21、in relief for connector/cable terminations and multi-way transitions. These shapes are normally available in black, but other colours may be available. Moulded shapes should be installed in accordance with manufacturers or suppliers instructions and, in particular, it should be noted that when shrin
22、kage is restricted some properties may be impaired, e.g. wall thickness will be reduced; and moulded shape performance may also be reduced. A guide to installation is detailed in Annex F. Heat-shrinkable moulded shapes are normally used with a bonding adhesive as detailed in Annex E Table E.1. Some
23、of these adhesives may be supplied pre-coated or as a separate component. Annex E also details the recommended combinations of adhesive types, moulded shapes and sleevings. The requirements for adhesive compatibility are detailed in Annex D. It should be noted that the majority of heat guns availabl
24、e for the application of moulded shapes are not suitable for use in potentially explosive atmospheres. Application tools suitable for the installation of heat-shrinkable moulded shapes in those areas should be designed for zone 2 areas as specified in BS 5345-2:1983. WARNING NOTE 1. This standard re
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