IEC 60152:1963 ed1.0

Заменен

Identification by hour numbers of the phase conductors of 3-phase electric systems — 11 стр.

Ссылочные документы

Действует

Designation of phase differences by hour numbers in three-phase AC systems — 13 стр.

Действует

Guidelines for the inclusion of documentation aspects in product standards — 30 стр.

Действует

Designation of phase differences by hour numbers in three-phase AC systems — 13 стр.