Standard IEC standard · IEC 60449:1973/AMD1:1979

Amendment 1 - Voltage bands for electrical installations of buildings

Status: Withdrawn

· Replaced by: IEC 61140:2016

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Standard IEC standard · IEC 60449:1973/AMD1:1979

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Scope

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.

Subjects

Electrical engineering in general (29.020) Electricity supply systems (91.140.50)

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Amendment 1 - Voltage bands for electrical installations of buildings

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