IEC 60449:1973/AMD1:1979
Superseded
Date published:
Amendment 1 - Voltage bands for electrical installations of buildings
Classification of d.c. installations according to their nominal voltage. As for a.c. a distinction has been made between two bands when the lower band relates mainly to installations whose voltages are restricted for safety reasons. Covers all voltages from zero up to and including 120 V ripple-free d.c.
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Related Information
29.020 Electrical engineering in general
91.140.50 Electricity supply systems
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IEC 60449:1973/AMD1:1979
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