BS 6878(1988) : 1988
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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SPECIFICATION FOR HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR FOR INDUSTRIAL USE - CAST ALUMINIUM ALLOY ENCLOSURES FOR GAS-FILLED HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR
Hardcopy , PDF
English
01-01-1993
31-12-2016
Foreword
Brief history
0 Introduction
1 Scope
2 Quality assurance
3 Definitions
4 Materials
4.1 Selection of material
4.2 Chemical analysis
5 Design
5.1 General
5.2 Corrosion allowance
5.3 Design stresses
5.4 Calculation methods
5.5 Manholes and inspection openings
6 Manufacture and workmanship
6.1 Manufacture
6.2 Consultation between manufacturer and founder
6.3 Foundry technique
6.4 Geometry and dimensions
6.5 Chemical composition and mechanical properties
6.6 Workmanship
7 Repair of casting defects
7.1 General
7.2 Repair by welding
7.3 Impregnation of castings
8 Heat treatment
8.1 Heat treatment procedure
8.2 Methods of heating
8.3 Quenching
8.4 Calibration of furnace temperature
8.5 Heat treatment charts
9 Inspection, testing and certification
9.1 Proof tests
9.2 Inspection and routine tests
9.3 Certification
10 Pressure relief devices
10.1 General
10.2 Bursting discs
10.3 Self-closing pressure relief valves
10.4 Non-self-closing pressure relief devices
Annex A Welder performance test
Annex B (informative) A - deviations
National appendix W
National appendix X
Applicable to cast aluminium alloy enclosures pressurized with dry air, inert gases, for example sulphur hexafluoride or nitrogen or a mixture of such gases.
| Committee |
PEL/17/1
|
| DevelopmentNote |
Supersedes 84/28846 DC and 93/204688 DC. (09/2005)
|
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| NFC 64 450 : 87 AMD 2 93 | Identical |
| BS EN 50068:1991 | Specification for wrought steel enclosures for gas-filled high-voltage switchgear and controlgear |
| BS EN 50069 : 1991 | SPECIFICATION FOR WELDED COMPOSITE ENCLOSURES OF CAST AND WROUGHT ALUMINIUM ALLOYS FOR GAS-FILLED HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR |
| 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 |
| EN 50069:1991/corrigendum Aug. 2007 | WELDED COMPOSITE ENCLOSURES OF CAST AND WROUGHT ALUMINIUM ALLOYS FOR GAS-FILLED HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR |
| ISO 3134-4:1985 | Light metals and their alloys — Terms and definitions — Part 4: Castings |
| ISO 3134-2:1985 | Light metals and their alloys — Terms and definitions — Part 2: Unwrought products |
| BS 6104-3:1981 | Mechanical properties of fasteners Specification for set screws and similar threaded fasteners not under tensile stresses |
| ISO 3134-1:1985 | Light metals and their alloys — Terms and definitions — Part 1: Materials |
| BS 6104-1:1981 | Mechanical properties of fasteners Specification for bolts, screws and studs |
| BS 6104-2:1983 | Mechanical properties of fasteners Specification for nuts with specified proof load values |
| ISO/R 373:1964 | General principles for fatigue testing of metals |
| ISO 3134-3:1985 | Light metals and their alloys — Terms and definitions — Part 3: Wrought products |
| IEC 60517:1990 | Gas-insulated metal-enclosed switchgear for rated voltages of 72.5 kV and above |
| HD 358 : 200S3 | GAS-INSULATED METAL-ENCLOSED SWITCHGEAR FOR RATED VOLTAGES OF 72.5 kV AND ABOVE |
| ISO/IEC Guide 2:2004 | Standardization and related activities — General vocabulary |
| BS 5424-1:1977 | Specification for controlgear for voltages up to and including 1000 V a.c. and 1200 V d.c. Contactors |
| ISO 3134-5:1981 | Light metals and their alloys — Terms and definitions — Part 5: Methods of processing and treatment |
| BS 3518-1:1962 | Methods of fatigue testing General principles |
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