IEC 61268:1995

FOREWORD
Clause
1 Scope
2 Normative references
3 Definitions
   3.1 General definitions
   3.2 Definitions related to the functional elements
   3.3 Definitions of mechanical elements
   3.4 Definitions of insulations
   3.5 Definitions of meter quantities
   3.6 Definitions of influence quantities
   3.7 Definition of tests
4 Requirements
   4.1 Standard electrical values
   4.2 Mechanical requirements
   4.3 Climatic conditions
   4.4 Electrical requirements
   4.5 Electromagnetic compatibility (EMC)
   4.6 Accuracy requirements
5 Tests and test conditions
   5.1 General testing procedures
   5.2 Tests of mechanical procedures
   5.3 Tests of climatic influences
   5.4 Tests of electrical requirements
   5.5 Tests for electromagnetic compatibility (EMC)
   5.6 Test of accuracy requirements
Tables
Annexes
A Relationship between ambient air temperature and
   relative humidity
B Test circuit diagram for d.c. influence test
C Voltage waveform for the tests of the effect of
   voltage dips and short interruptions
D Electromagnet for testing the influence of externally
   produced magnetic fields
E Geometric representation of active and reactive power
F Test schedule

Applies only to newly manufactured static var-hour meters of accuracy classes 2 and 3 for the measurement of alternating current electrical reactive energy of a frequency in the range 45 Hz to 65 Hz and, like IEC 60687 and IEC 61036, it includes type tests only.