IEC 60449:1973 ED1

Voltage bands for electrical installations of buildings IEC 60449:1973 ED1

Publication date:   Jan 1, 1973

95.99 Withdrawal of Standard   May 6, 2016

General information

95.99 Withdrawal of Standard   May 6, 2016

IEC

TC 64

International Standard

91.140.50   Electricity supply systems | 29.020   Electrical engineering in general

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Scope

Applies to a.c. electrical installations of buildings supplied at a frequency not exceeding 60 Hz and at a nominal voltage up to and including 1 000 V. Defines two voltage bands: Band I covers the installations where protection against shock is provided under certain conditions by the value of voltage and the installations where the voltage is limited for operational reasons (e.g. telecommunications, signalling, bell, control and alarm installation). Band II contains the voltage for supplies to household, commercial and industrial installations. This band contains all the voltage of public distribution systems in the various countries. Note: The voltage bands defined are intended mainly for use in connection with installation rules (see IEC 60364), but may also be used when preparing requirements for electrical equipment.

Life cycle

NOW

WITHDRAWN
IEC 60449:1973 ED1
95.99 Withdrawal of Standard
May 6, 2016

CORRIGENDA / AMENDMENTS

WITHDRAWN
IEC 60449:1973/AMD1:1979 ED1

REVISED BY

PUBLISHED
IEC 61140:2016 ED4