GOST 721-1977
Power supply systems, networks, sources,converters and receivers of electric energy. Rated voltages above 1000 V

Standard No.

GOST 721-1977

Release Date

1977

Published By

RU-GOST R

Latest

GOST 721-1977

Replace

GOST 721-1974

Scope

This standard applies to general purpose electrical networks of alternating voltage with a frequency of 50 Hz and to those connected to

GOST 721-1977 Referenced Document

• GOST 6697-1983 Power supply systems, sources, converters and receivers of electric alternating current energy rated frequencies from 0,1 to 10000 Hz and tolerances*， 1983-04-19 Update

GOST 721-1977 history

• 1977 GOST 721-1977 Power supply systems, networks, sources,converters and receivers of electric energy. Rated voltages above 1000 V
• 0000 GOST 721-1974