EN 60521:1995/corrigendum Dec. 1997

Superseded

View Superseded by

CLASS 0,5, 1 AND 2 ALTERNATING-CURRENT WATTHOUR METERS

Superseded date

03-21-2003

Published date

01-12-2013

Publisher

European Committee for Standards - Electrical

Clause
1. Scope
2. Units
3. Definitions
4. Classification
5. Mechanical requirements
6. Electrical requirements
7. Marking of meters
8. Accuracy
9. Starting and running with no-load
10.Adjustment
APPENDIX A - Graphical symbols for watthour meters
Annex ZA (normative) Other international publications
                     quoted in this standard with the
                     references of the relevant
                     European publications
Annex ZB (normative) Special national conditions
TABLES
    I. Clearances and creepage distances
   II. Standard basic requirements
  III. Standard reference voltages
   IV. Power loss
    V. Apparent power loss
   VI. Heating
  VII. A.C. voltage tests
VIII. Voltage marking
   IX. Voltage and current balance
    X. Reference conditions
   XI. Percentage error limits (single-phase meters and
       polyphase meters with balanced loads)
  XII. Percentage error limits (polyphase meters carrying
       a single-phase load, but with balanced polyphase
       voltages applied to voltage circuits)
XIII. Interpretation of test circuits
  XIV. Temperature coefficient
   XV. Influence quantities
  XVI. Variations due to short-time overcurrents
XVII. Variations due to self-heating
XVIII. Starting currents
  XIX. Minimum range of adjustment

Applies to newly manufactured induction-type watthour meters of accuracy Classes 0.5, 1 and 2, for the measurement of alternating current electrical active energy of a frequency in the range 45 Hz to 65 Hz. Applies to the assembly of meters and accessories, including current transformers, when enclosed in the metercase. Does not apply to any kind of measuring device.

Committee	TC 13
DevelopmentNote	Former HD 309.1 (05/2001)
DocumentType	Standard
PublisherName	European Committee for Standards - Electrical
Status	Superseded
SupersededBy	I.S. EN 62053-11:2003
Supersedes	HD 309.1 : 200S1

Standards	Relationship
NF EN 60521 : 1995	Identical
SN EN 60521 : 1995	Identical
NBN EN 60521 : 1995	Identical
NEN 10521 : 1995	Identical
VDE 0418-12 : 1995	Identical
DIN EN 60521 : 1995	Identical
BS EN 60521:1995	Identical
CEI EN 60521 : 2ED 1997	Identical
I.S. EN 60521:1995	Identical
IEC 60521:1988	Identical

BS EN 61036:1997	Alternating current static watt-hour meters for active energy (classes 1 and 2)
EN 62053-31 : 1998	Electricity metering equipment (a.c.) - Particular requirements - Part 31: Pulse output devices for electromechanical and electronic meters (two wires only)
CEI 13-32 : 2000	WATT-VAR-HOUR METERS FOR LOW-VOLTAGE THREE-PHASE NETWORKS (INTEGRATED UNITS) PRESETTED FOR PROCESSING AND REMOTE MANAGEMENT OF DATA WITH OR WITHOUT INSERTION OF CURRENT TRANSFORMERS
BS 5724-2.124(1998) : 1998	MEDICAL ELECTRICAL EQUIPMENT - PARTICULAR REQUIREMENTS FOR THE SAFETY OF INFUSION PUMPS AND CONTROLLERS
BS EN 62053-31:1999	Electricity metering equipment (a.c.). Particular requirements Pulse output devices for electromechanical and electronic meters (two wires only)
I.S. EN 61036:1997	ALTERNATING CURRENT STATIC WATT-HOUR METERS FOR ACTIVE ENERGY (CLASSES 1 AND 2)
CEI 13-26 : 1999	WATT-HOUR METERS AND POWER LIMITERS FOR LOW-VOLTAGE NETWORKS (INTEGRATED UNITS) PERMITTED OR NOT FOR PROCESSING AND REMOTE MANAGEMENT OF DATA
EN 61036:1996/A1:2000	ALTERNATING CURRENT STATIC WATT-HOUR METERS FOR ACTIVE ENERGY (CLASSES 1 AND 2)