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BS CECC 42000:1978

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Harmonized system of quality assessment for electronic components: generic specification: varistors
Available format(s)

Hardcopy , PDF

Superseded date

31-03-2009

Language(s)

English

Published date

29-12-1978

Foreword
Preface
Section 1 - Scope
Section 2 - General
2.1 Related documents
2.2 Units, symbols and terminology
2.3 Standard and preferred values
2.4 Marking
Section 3 - Quality assessment procedures
3.1 Primary stage of manufacture
3.2 Structural similarity
3.3 Qualification approval procedures
3.4 Quality conformance inspection
3.5 Certified test records
3.6 Delayed delivery
3.7 Alternative test methods
3.8 Release for delivery before the completion of
      Group B tests
Section 4 - Test and measurement procedures
4.1 Standard conditions for testing
4.2 Visual examination and check of dimensions
4.3 Voltage (or current) at reference current (or
      voltage)
4.4 Non-linearity
4.5 Temperature coefficient
4.6 Capacitance
4.7 Voltage proof (for insulated varistors only)
4.8 Insulation resistance (for insulated varistors
      only)
4.9 Robustness of the varistor body (for rod types
      only)
4.10 Soldering
4.11 Robustness of terminations
4.12 Rapid change of temperature
4.13 Bump
4.14 Shock
4.15 Vibration
4.16 Climatic sequence
4.17 Damp heat, steady state
4.18 Flammability
4.19 Electrical endurance, at room temperature
4.20 Electrical endurance, at upper category
      temperature
Section 5 - Sectional and blank detail specifications
Appendix A
Appendix B
Appendix C

A range of varistors with symmetrical voltage current characteristics, classified according to application and manufacturing technology.

Committee
W/-
DevelopmentNote
Supersedes 75/21263 DC. (01/2006)
DocumentType
Standard
Pages
54
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

Standards Relationship
CECC 42000 : 78 AMD 3 86 Identical

BS CECC 42200:1988 Harmonized system of quality assessment for electronic components. Sectional specification: surge suppression varistors
BS CECC 42101:1978 Specification for harmonized system of quality assessment for electronic components. Blank detail specification: low voltage varistors primarily for telephony applications (assessment level P)

IEC 60060-2:2010 High-voltage test techniques - Part 2: Measuring systems
BS E9006(1976) : LATEST HARMONISED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRONIC COMPONENTS. BASIC SPECIFICATION. ENVIRONMENTAL PROCEDURES
BS 6458-2.2(1984) : 1984 FIRE HAZARD TESTING FOR ELECTROTECHNICAL PRODUCTS - METHODS OF TEST - NEEDLE FLAME TEST
BS E9007:1975 Specification for harmonized system of quality assessment for electronic components: Basic specification: Sampling plans and procedures for inspection by attributes
BS 2488:1966 Schedule of preferred numbers for the resistance of resistors and the capacitance of capacitors for telecommunication equipment
BS 2045:1965 Preferred numbers
BS E9000-1(1977) : LATEST
IEC 60294:2012 Measurement of the dimensions of a cylindrical component with axial terminations
BS 5555:1976 Specification for SI units and recommendations for the use of their multiples and of certain other units
BS 1991-1(1976) : LATEST LETTER SYMBOLS, SIGNS AND ABBREVIATIONS

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