1、BRITISH STANDARD BS IEC 60050-821:1998 International Electrotechnical Vocabulary Part 821: Signalling and security apparatus for railways ICS 01.040.29; 01.040.93; 29.020; 93.100BSIEC60050-821:1998 This British Standard, having been prepared under the directionof the ElectrotechnicalSector Committee
2、, was publishedunderthe authorityofthe Standards Committee andcomes intoeffecton 15May1999 BSI 03-2000 ISBN 0 580 32341 2 National foreword This British Standard reproduces verbatim IEC 60050-821:1998 and implements it as the UK national standard. The UK participation in its preparation was entruste
3、d to Technical CommitteeGEL/1, Terminology, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UKinterests informed; monitor related internationa
4、l and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 600
5、27-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standar
6、ds Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for
7、 their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theIEC title page, pages ii to vi, pages 1 to 251 and a back cover. This standard h
8、as been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSIEC60050-821:1998 BSI 03-2000 i Contents Page National foreword Inside front cover Text
9、of IEC 60050-821 1ii blankBSIEC60050-821:1998 ii BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 iiiBSIEC60050-821:1998 iv BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 vvi blankBSIEC60050-821:1998 BSI 03-2000 1BSIEC60050-821:1998 2 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 3BSIEC60050-821:1998 4 BSI 03-20
10、00BSIEC60050-821:1998 BSI 03-2000 5BSIEC60050-821:1998 6 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 7BSIEC60050-821:1998 8 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 9BSIEC60050-821:1998 10 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 11BSIEC60050-821:1998 12 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000
11、 13BSIEC60050-821:1998 14 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 15BSIEC60050-821:1998 16 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 17BSIEC60050-821:1998 18 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 19BSIEC60050-821:1998 20 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 21BSIEC60050-821:1998 22 BS
12、I 03-2000BSIEC60050-821:1998 BSI 03-2000 23BSIEC60050-821:1998 24 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 25BSIEC60050-821:1998 26 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 27BSIEC60050-821:1998 28 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 29BSIEC60050-821:1998 30 BSI 03-2000BSIEC60050-821:1998
13、 BSI 03-2000 31BSIEC60050-821:1998 32 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 33BSIEC60050-821:1998 34 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 35BSIEC60050-821:1998 36 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 37BSIEC60050-821:1998 38 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 39BSIEC60050-82
14、1:1998 40 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 41BSIEC60050-821:1998 42 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 43BSIEC60050-821:1998 44 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 45BSIEC60050-821:1998 46 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 47BSIEC60050-821:1998 48 BSI 03-2000BSIEC60
15、050-821:1998 BSI 03-2000 49BSIEC60050-821:1998 50 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 51BSIEC60050-821:1998 52 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 53BSIEC60050-821:1998 54 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 55BSIEC60050-821:1998 56 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 57B
16、SIEC60050-821:1998 58 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 59BSIEC60050-821:1998 60 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 61BSIEC60050-821:1998 62 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 63BSIEC60050-821:1998 64 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 65BSIEC60050-821:1998 66 BSI 03
17、-2000BSIEC60050-821:1998 BSI 03-2000 67BSIEC60050-821:1998 68 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 69BSIEC60050-821:1998 70 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 71BSIEC60050-821:1998 72 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 73BSIEC60050-821:1998 74 BSI 03-2000BSIEC60050-821:1998 BSI
18、 03-2000 75BSIEC60050-821:1998 76 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 77BSIEC60050-821:1998 78 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 79BSIEC60050-821:1998 80 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 81BSIEC60050-821:1998 82 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 83BSIEC60050-821:19
19、98 84 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 85BSIEC60050-821:1998 86 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 87BSIEC60050-821:1998 88 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 89BSIEC60050-821:1998 90 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 91BSIEC60050-821:1998 92 BSI 03-2000BSIEC60050-
20、821:1998 BSI 03-2000 93BSIEC60050-821:1998 94 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 95BSIEC60050-821:1998 96 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 97BSIEC60050-821:1998 98 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 99BSIEC60050-821:1998 100 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 101BSI
21、EC60050-821:1998 102 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 103BSIEC60050-821:1998 104 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 105BSIEC60050-821:1998 106 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 107BSIEC60050-821:1998 108 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 109BSIEC60050-821:1998 110
22、 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 111BSIEC60050-821:1998 112 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 113BSIEC60050-821:1998 114 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 115BSIEC60050-821:1998 116 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 117BSIEC60050-821:1998 118 BSI 03-2000BSIEC600
23、50-821:1998 BSI 03-2000 119BSIEC60050-821:1998 120 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 121BSIEC60050-821:1998 122 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 123BSIEC60050-821:1998 124 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 125BSIEC60050-821:1998 126 BSI 03-2000BSIEC60050-821:1998 BSI 03-2
24、000 127BSIEC60050-821:1998 128 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 129BSIEC60050-821:1998 130 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 131BSIEC60050-821:1998 132 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 133BSIEC60050-821:1998 134 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 135BSIEC60050-82
25、1:1998 136 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 137BSIEC60050-821:1998 138 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 139BSIEC60050-821:1998 140 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 141BSIEC60050-821:1998 142 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 143BSIEC60050-821:1998 144 BSI 03-20
26、00BSIEC60050-821:1998 BSI 03-2000 145BSIEC60050-821:1998 146 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 147BSIEC60050-821:1998 148 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 149BSIEC60050-821:1998 150 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 151BSIEC60050-821:1998 152 BSI 03-2000BSIEC60050-821:199
27、8 BSI 03-2000 153BSIEC60050-821:1998 154 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 155BSIEC60050-821:1998 156 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 157BSIEC60050-821:1998 158 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 159BSIEC60050-821:1998 160 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 161BSI
28、EC60050-821:1998 162 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 163BSIEC60050-821:1998 164 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 165BSIEC60050-821:1998 166 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 167BSIEC60050-821:1998 168 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 169BSIEC60050-821:1998 170
29、 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 171BSIEC60050-821:1998 172 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 173BSIEC60050-821:1998 174 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 175BSIEC60050-821:1998 176 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 177BSIEC60050-821:1998 178 BSI 03-2000BSIEC600
30、50-821:1998 BSI 03-2000 179BSIEC60050-821:1998 180 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 181BSIEC60050-821:1998 182 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 183BSIEC60050-821:1998 184 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 185BSIEC60050-821:1998 186 BSI 03-2000BSIEC60050-821:1998 BSI 03-2
31、000 187BSIEC60050-821:1998 188 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 189BSIEC60050-821:1998 190 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 191BSIEC60050-821:1998 192 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 193BSIEC60050-821:1998 194 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 195BSIEC60050-82
32、1:1998 196 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 197BSIEC60050-821:1998 198 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 199BSIEC60050-821:1998 200 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 201BSIEC60050-821:1998 202 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 203BSIEC60050-821:1998 204 BSI 03-20
33、00BSIEC60050-821:1998 BSI 03-2000 205BSIEC60050-821:1998 206 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 207BSIEC60050-821:1998 208 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 209BSIEC60050-821:1998 210 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 211BSIEC60050-821:1998 212 BSI 03-2000BSIEC60050-821:199
34、8 BSI 03-2000 213BSIEC60050-821:1998 214 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 215BSIEC60050-821:1998 216 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 217BSIEC60050-821:1998 218 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 219BSIEC60050-821:1998 220 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 221BSI
35、EC60050-821:1998 222 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 223BSIEC60050-821:1998 224 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 225BSIEC60050-821:1998 226 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 227BSIEC60050-821:1998 228 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 229BSIEC60050-821:1998 230
36、 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 231BSIEC60050-821:1998 232 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 233BSIEC60050-821:1998 234 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 235BSIEC60050-821:1998 236 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 237BSIEC60050-821:1998 238 BSI 03-2000BSIEC600
37、50-821:1998 BSI 03-2000 239BSIEC60050-821:1998 240 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 241BSIEC60050-821:1998 242 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 243BSIEC60050-821:1998 244 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 245BSIEC60050-821:1998 246 BSI 03-2000BSIEC60050-821:1998 BSI 03-2
38、000 247BSIEC60050-821:1998 248 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 249BSIEC60050-821:1998 250 BSI 03-2000BSIEC60050-821:1998 BSI 03-2000 251BS IEC 60050-821:1998 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for prepar
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