NBN EN 62052-21 : 2005

INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Standard electrical values
5 Mechanical requirements and tests
6 Climatic conditions, requirements and tests
7 Electrical requirements and tests
8 Test conditions and type test
Annex A (normative) Relationship between ambient air
         temperature and relative humidity
Annex B (normative) Reference and limiting values of the
         influence quantities
Annex C (normative) Electromagnet for testing the influence
         of externally produced magnetic fields
Annex D (informative) Test set-up for EMC tests
Annex E (informative) Test schedule
Annex F (informative) Acceptance tests
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications
Annex ZB (normative) Special national considerations
Annex ZZ (informative) Coverage of Essential Requirements
         of EC Directives
Bibliography

Defines general requirements for the type test of newly manufactured indoor tariff and load control equipment, like electronic ripple control receivers and time switches that are used to control electrical loads, multi-tariff registers and maximum demand indicator devices.