IEC-449-1 › Amendment No. 1
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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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Document Number
IEC 60449 Amd.1 Ed. 1.0 b:1979
Revision Level
1ST EDITION AMENDMENT 1
Status
Superseded
Publication Date
May 1, 1979
Committee Number
64