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BS EN 50068:1991

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

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withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Specification for wrought steel enclosures for gas-filled high-voltage switchgear and controlgear
Available format(s)

Hardcopy , PDF

Withdrawn date

12-10-2018

Language(s)

English

Published date

09-30-1991

0 Scope
1 Modulation characteristics of the data channel
          (physical layer)
1.1 Subcarrier frequency
1.2 Subcarrier phase
1.3 Subcarrier level
1.4 Method of modulation
1.5 Clock-frequency and data-rate
1.6 Differential coding
1.7 Data-channel spectrum shaping
2 Baseband coding (data-link layer)
2.1 Baseband coding structure
2.2 Order of bit transmission
2.3 Error protection
2.4 Synchronization of blocks and groups
3 Message format (session and presentation
          layers)
3.1 Addressing
3.1.1 Design principles
3.1.2 Principal features
3.1.3 Group types
3.1.3.1 Type 0 groups: Basic tuning and switching
          information
3.1.3.2 Type 1 groups: Programme-item number and slow
          labelling codes
3.1.3.3 Type 2 groups: Radiotext
3.1.3.4 Type 4A groups: Clock-time and date
3.1.3.5 Type 5 groups: Transparent data channels
3.1.3.6 Type 6 groups: In-house applications
3.1.3.7 Type 7A groups: Radio paging
3.1.3.8 Type 9A groups: Emergency warning system
3.1.3.9 Type 14 groups: Enhanced Other Networks
          information
3.1.3.10 Type 15B groups: Fast basic tuning and
          switching information
3.2 Coding of information
3.2.1 Coding of information for control
3.2.1.1 Programme-identification (PI) codes and
          Extended Country codes (ECC)
3.2.1.2 Programme-type (PTY) codes
3.2.1.3 Traffic-programme (TP) and traffic-
          announcement (TA) codes
3.2.1.4 Music/speech (M/S) switch code
3.2.1.5 Decoder-identification (DI) codes
3.2.1.6 Coding of Alternative frequencies (AFs) in
          group 0A
3.2.1.7 Programme-item number (PIN) codes
3.2.1.8 Coding of Enhanced Other Networks
          information (EON)
3.2.2 Coding of information for display
3.2.3 Coding of clock-time and date
3.2.4 Coding of information for transparent data
          channels
3.2.5 Coding of information for in-house
          applications
3.2.6 Coding of Radio paging (RP)
3.2.6.1 Introduction
3.2.6.2 Coding characteristics for paging
3.2.6.3 Examples of the traffic handling capacity of
          the specified RP system
3.2.7 Coding of Emergency warning system (EWS)
4 Glossary of terms of applications
4.1 Programme identification (PI)
4.2 Programme service (PS) name
4.3 Programme type (PTY)
4.4 Traffic-programme identification (TP)
4.5 List of Alternative frequencies
4.6 Traffic-announcement identification (TA)
4.7 Decoder identification (DI)
4.8 Music/speech switch (M/S)
4.9 Programme-item number (PIN)
4.10 Radiotext (RT)
4.11 Enhanced Other Networks information (EON)
4.12 Transparent data channel (TDC)
4.13 In-house application (IH)
4.14 Clock-time and date (CT)
4.15 Radio paging (RP)
4.16 Emergency warning systems (EWS)
4.17 Traffic Message Channel (TMC)
5 Marking
Annexes
A Offset words to be used for group and block
          synchronization
B Theory and implementation of the modified
          shortened cyclic code
C Implementation of group and block
          synchronization using the modified shortened
          cyclic code
D Programme identification codes and Extended
          country codes
E Character definition for Program Service name,
          Radiotext and Alphanumeric Radio paging
F Programme Type codes
G Conversion between time and date conventions
H Specification of the ARI system
J Index of abbreviations
K RDS logo
L Bibliography
National annex NA (informative) Committees responsible
National annex NB (informative) Cross-reference

Requirements design, construction, testing, inspection and certification.

Committee
PEL/17
DevelopmentNote
Supersedes 86/30266 DC. (09/2005)
DocumentType
Standard
Pages
76
PublisherName
British Standards Institution
Status
Withdrawn
SupersededBy

BS EN 50187:1997 Gas-filled compartments for a.c. switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV

BS 6878(1988) : 1988 SPECIFICATION FOR HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR FOR INDUSTRIAL USE - CAST ALUMINIUM ALLOY ENCLOSURES FOR GAS-FILLED HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR
ISO 6213:1989 Welding Factors to be considered to ensure quality in welded structures
BS 5750-0.1(1987) : 1987 QUALITY SYSTEMS - PRINCIPAL CONCEPTS AND APPLICATIONS - GUIDE TO SELECTION AND USE
BS 7315(1990) : 1990 SPECIFICATION FOR WROUGHT ALUMINIUM AND ALUMINIUM ALLOY ENCLOSURES FOR GAS-FILLED HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR
BS 7501:1989 General criteria for the operation of testing laboratories
ISO 1099:2017 Metallic materials — Fatigue testing — Axial force-controlled method

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