BS 7404-4:1991
Current
The latest, up-to-date edition.
Telecontrol equipment and systems. Specification for performance
Hardcopy , PDF
English
31-10-1991
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Committees responsible
Foreword
Specification
Introduction
1. Scope
2. Object
3. Classification of operational parameters
3.1 Reliability
3.2 Availability
3.3 Maintainability
3.4 Security
3.5 Data integrity
3.6 Time parameters
3.7 Overall accuracy
4. Expandability
5. Influence of telecontrol equipment on the
environment
5.1 Electrical influence
5.2 Acoustic noise
5.3 Thermal influence
Appendices
A. Measures to enhance system performance
B. Evaluation of expandability
Tables
1. Reliability classes
2. Availability classes
3. Maintainability classes
4. Repair time classes
5. Data integrity classes
6. Separating capability classes
7. Time resolution classes
8. Overall accuracy classes
9. Starting current classes
B.1 Extensions to process data
B.2 Extensions to application functions
B.3 Extensions to additional processing functions
B.4 Extensions to data transmission
Figures
1. Processing of analog information
2. Noise criters (NC) curves for speech communication
Applies to systems with coded bit serial data transmission for monitoring and control of geographically widespread processes.
| Committee |
PEL/57
|
| DevelopmentNote |
Also numbered as IEC 60870-4 Supersedes 89/33074 DC (10/2005)
|
| DocumentType |
Standard
|
| Pages |
26
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This series of standards applies to telecontrol equipment and systems with coded bit serial data transmission for monitoring and control of geographically widespread processes. The scope of this standard embraces telecontrol systems in the restricted sense, as shown in IEC Publication 870-1-1, Figure 2.
| BS 7404-1.1:1991 | Telecontrol equipment and systems. General considerations. General principles |
| BS EN 60870-2-2:1997 | Telecontrol equipment and systems. Operating conditions Environmental conditions (climatic, mechanical and other non-electrical influences) |
| BS EN 60870-2-1:1996 | Telecontrol equipment and systems. Operating conditions Power supply and electromagnetic compatibility |
| BS 7404-3:1991 | Telecontrol equipment and systems Specification for interfaces (electrical characteristics) |
| BS 7602:1992 | Guide to general considerations for telecommunication services for electrical power systems |
| BS 7404-5.1(1991) : 1991 AMD 8113 | TELECONTROL EQUIPMENT AND SYSTEMS - TRANSMISSION PROTOCOLS - SPECIFICATION FOR TRANSMISSION FRAME FORMATS |
| IEC 60271:1974 | List of basic terms, definitions and related mathematics for reliability |
| IEC 60688:2012 | Electrical measuring transducers for converting A.C. and D.C. electrical quantities to analogue or digital signals |
| IEC 60271A:1978 | First supplement - Preliminary list of basic terms and definitions for the reliability of electronic equipment and the components (or parts) used therein |
| BS 7404-1.1:1991 | Telecontrol equipment and systems. General considerations. General principles |
| MIL-STD-1472 Revision G:2012 | HUMAN ENGINEERING |
| IEC 60051:1973 | Recommendations for direct acting indicating electrical measuring instruments and their accessories |
| IEC 60300:1984 | Reliability and maintainability management |
| IEC 60050-371:1984 | International Electrotechnical Vocabulary (IEV) - Part 371: Telecontrol |
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