
Identification by hour numbers of the phase conductors of 3-phase electric systems
出版:International Electrotechnical Committee

专家解读视频
Provides a means for identifying the conductors of 3-phase interconnected systems by the use of hour (clock-face) numbers, taking as a basis the phase sequence, starting from an arbitrary origin, of their applied voltages.
NFC 04 200:1980 - Identical
HD 324:1976 - Identical
NEN 3286:1967 - Identical
PN 91/E-05019:1991 - Identical