BS 7415(1991) : 1991 AMD 7674被替代
SPECIFICATION FOR TIME SWITCHES FOR TARIFF AND LOAD CONTROL
出版：British Standards Institution
专家解读视频
Gives requirements for testing newly manufactured indoor time switches with operation reserve that are used to control electrical loads, multi-tariff registers and maximum demand devices at certain periods throughout the year. May employ various techniques for electronic circuits. Does not apply to time switches operated by remote control or synchronized by radio-frequency. Covers normative references, definitions, requirements, tests and test conditions, relationship between ambient air temperature and relative humidity, reference and limiting values of the influence quantities, electromagnet for testing the influence quantities, electromagnet for testing the influence of externally produced magnetic field and acceptance tests. BS AMD 7674 RENUMBERS THIS STANDARD TO BS EN 61038
IEC 61038 : 1.2 - Identical
