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I.S. EN 60477:1999

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

LABORATORY D.C. RESISTORS

Available format(s)

Hardcopy , PDF

Superseded date

22-06-2022

Language(s)

English

Published date

01-01-1999

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

FOREWORD
PREFACE
1 Scope
2 Definitions
  2.1 General terms
  2.2 Characteristic values
  2.3 Influence quantities, reference conditions,
      nominal range of use
  2.4 Errors and variations
  2.5 Accuracy, accuracy class, class index
3 Classification
4 Limits of intrinsic error
5 Conditions for the determination of intrinsic errors
6 Permissible variations
  6.1 Limits of variation
  6.2 Conditions for the determination of the variations
  6.3 Influence of self-heating (power dissipation)
  6.4 Influence of position
7 Further electrical and mechanical requirements
  7.1 Voltage tests and other safety requirements
  7.2 Insulation resistance
  7.3 Conditions of transport, storage and use
  7.4 Point of connection
  7.5 Provision of temperature measuring facilities
8 Markings and symbols
APPENDIX
A1 - Thermoelectric effects
A2 - Reference range and nominal range of use
A3 - Example of marking for a single resistor
A4 - Example of marking for a five-decade resistor

Applicable to resistors intended for use as laboratory d.c. resistors (hereinafter referred to as 'resistors') comprising single or multiple resistors of accuracy Classes 0.0005 ...0.2 (5 ppM...2 000 ppM) and single or multi-decade resistors or accuracy Classes 0.0005...5(5 ppM...50 000 ppM). Recommendation does not apply to resistors used on alternating current or on pulsed currents, resistors which are intended for use solely as permanent mounted circuit components, series resistors and shunts which are considered as accessories of electrical measuring instruments in the relevant IEC publications.

DevelopmentNote
For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
DocumentType
Standard
Pages
50
PublisherName
National Standards Authority of Ireland
Status
Superseded
SupersededBy

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