1、BRITISH STANDARD BS 6913-6: 1991 ISO 9247:1990 Operation and maintenance of earth-moving machinery Part 6: Specification for identification and marking of electrical wires and cablesBS 6913-6:1991 This British Standard, having been prepared under the direction of the Road Engineering Standards Polic
2、y Committee, was published under the authority of the Board of BSI and comes into effect on 28 February 1991 BSI 07-1999 The following BSI references relate to the work on this standard: Committee reference RDB/21 Draft for comment 89/10519 DC ISBN 0 580 19351 9 Committees responsible for this Briti
3、sh Standard The preparation of this British Standard was entrusted by the Road Engineering Standards Policy Committee (RDB/-) to Technical Committee RDB/21, upon which the following bodies were represented: AFRC Institute of Engineering Research Associated Offices Technical Committee British Coal Co
4、rporation Construction Industry Training Board Construction Plant-hire Association Federation of Civil Engineering Contractors Federation of Manufacturers of Construction Equipment and Cranes Health and Safety Executive Institution of Civil Engineers Institution of Highways and Transportation Minist
5、ry of Defence Amendments issued since publication Amd. No. Date CommentsBS6913-6:1991 BSI 07-1999 i Contents Page Committees responsible Inside front cover National foreword ii 1 Scope 1 2 Normative references 1 3 Definitions 1 4 Coding system of electrical wires and cables 1 5 Marking of electrical
6、 circuits and/or functional groups 2 Publication(s) referred to Inside back coverBS 6913-6:1991 ii BSI 07-1999 National foreword This Part of BS 6913 has been prepared under the direction of the Road Engineering Standards Policy Committee. It is identical with ISO 9247:1990 “Earth-moving machinery E
7、lectrical wires and cables Principles of identification and marking” published by the International Organization for Standardization (ISO). ISO 9247 was produced as a result of international discussion in which the UK took an active part. NOTETextual error. When adopting the text of the internationa
8、l standard, the following textual error was discovered. In 4.4 reference is made to “ISO 6479”. This is a printing error and it should read “ISO 6749”. The correction is indicated in the text and will be drawn to the attention of the ISO/TC 127 Secretariat. A British Standard does not purport to inc
9、lude all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references International standard Corresponding British Standard ISO 6165:198
10、7 BS 6914 Terminology (including definitions of dimensions and symbols) for earth-moving machinery Part 1:1988 Glossary of terms for basic types of earth-moving machinery (Identical) ISO 6749:1984 BS 6197:1985 Methods for preservation and storage of earth-moving machinery (Identical) Summary of page
11、s This document comprises a front cover, an inside front cover, pages i and ii, pages1 and 2, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.I
12、SO9247:1990(E) BSI 07-1999 1 1 Scope This International Standard specifies the fundamental items of an identification code system and marking for electrical wires and cables used to connect components in the electrical circuits of earth-moving machines. It does not cover the wires and cables located
13、 within electrical components, e.g. alternator (a.c. generator), relay instrument. This International Standard applies to earth-moving machinery as defined in ISO 6165. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of t
14、his 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 investigate the possibility of applying the most recent editions of the standards indicat
15、ed below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 6165:1987, Earth-moving machinery Basic types Vocabulary. ISO 6749:1984, Earth-moving machinery Preservation and storage. 3 Definitions For the purposes of this International Standard, the following d
16、efinitions apply. 3.1 electrical circuit number of electrical components connected by cables, leading from the electrical energy source to the functional component(s) and back to the energy source 3.2 electrical component self-contained element intended to store, generate, distribute, alter or consu
17、me electrical energy or effect an electrical junction 3.3 electrical cable insulated stranded electrical conductor used to establish a single current path 3.4 electrical wire insulated non-stranded electrical conductor used to establish a single current path 4 Coding system of electrical wires and c
18、ables Wires and cables shall be identified by numbers, colour, letter symbols or combinations of these, as specified in 4.1 to 4.4. 4.1 Identification numbering Identification of wires and cables may be by the use of numbers, i.e. numerals and letters. For additional identification, a capital letter
19、 shall be combined with the numerals. Letters which could cause possible misreading with numerals shall be omitted, i.e. B, D, I, O, Q. The identification shall be identical at both ends of each one wire or cable, but each number or combination of letter and numerals shall be used only once for a ma
20、chine. The identification shall be changed either as to the number or letter when an electric wire or cable is routed through an electrical component. 4.2 Identification colour 4.2.1 Identification of wires and cables may be by the use of coloured insulation over the whole length or by coloured band
21、ing at each end of the wire or cable. Different colours shall be used for proper identification. If additional identification is required, a colour trace, non-conductive banding or tags, in contrast to the base colour, shall be used. Colours which are not permanent under environmental conditions, or
22、 may possibly cause misinterpretation according to colour or brightness of illumination, shall be omitted. 4.2.2 The identification of the ground negative side (battery negative) is exempted from 4.1 and 4.2.1: the numeral 0, the symbol N or the colour black should be used. The identification shall
23、be uniform and only be used for negative and grounded conductors. 4.2.3 For wires and cables which carry voltage permanently (live wires) red shall be used as the identification colour. For example, connections from battery to the main switch, main fuse, alternator (a.c. generator), starter motor, a
24、 second battery negative terminal, shall be red. 4.3 Identification location Placement of identification shall be such that bands, tags and colours are readily visible, not confusing, and located in an area within 150 mm of each end of any wire and cable. Bands and tags may be duplicated over the le
25、ngth of the wire and cable, if required.ISO 9247:1990(E) 2 BSI 07-1999 4.4 Identification durability The coding shall be an integral part of the insulation or fixed securely to the insulation. Cable and wire identification shall be protected during painting, maintenance or servicing of machinery so
26、as to ensure legibility, in accordance with ISO 6479 1) . 5 Marking of electrical circuits and/or functional groups In addition to the identification of wires and cables by the methods given in 4.1 to 4.4, the ease of recognizing electrical circuits and/or functional groups can be improved by the us
27、e of the following markings. The marking and coding of wires and cables shall be harmonized with the wiring diagrams provided with each machine. Such diagrams shall show the electrical circuits, identifications of wires, cables and their corresponding connections, nominal cross-section of the conduc
28、tor of wires and cables, circuit voltage and grounded polarity. NOTE 1Graphical symbols relating to electrical components are given in IEC 617, Graphical symbols for diagrams. 1) See “Textual error” in national foreword. Marking of electrical circuit or functional group Identification of individual
29、wire or cable First part of number Second part of number Capital letter Number Identical basic colour Contrasting colour trace, banding or tag Identical basic colour Number and/or capital letterBS6913-6:1991 BSI 07-1999 Publication(s) referred to See national foreword.BS 6913-6: 1991 ISO 9247:1990 B
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