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EN 60477 : 1997 AMD 1 1997

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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Superseded date

13-06-2022

Published date

12-01-2013

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.

Committee
SR 85
DevelopmentNote
Supersedes HD 249. (06/2005)
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Superseded
SupersededBy
Supersedes

VDI/VDE/DGQ/DKD 2622 Blatt 8:2004-05 Calibration of measuring equipment for electrical quantities - Direct-current resistors
I.S. EN 45510-2-7:2002 GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-7: ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR
EN 60477-2:1997/A1:1997 LABORATORY RESISTORS - PART 2: LABORATORY A.C. RESISTORS
BS EN 60477-2:1999 Laboratory resistors Laboratory a.c. resistors
I.S. EN 60477-2:1999 LABORATORY RESISTORS - PART 2: LABORATORY A.C. RESISTORS

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