CENELEC standard voltages
CENELEC standard voltages
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1 Scope This publication applies to
– a.c. transmission, distribution and utilization systems and equipment for use in such systems with a standard frequency of 50 Hz Text deleted having a nominal voltage above 100 V;
– a.c. and d.c. traction systems;
– a.c. and d.c. equipment having nominal voltages below 120 V a.c. or below 750 V d.c., the a.c. voltages being intended (but not exclusively) for 50 Hz Text deleted applications; such equipment covers batteries (from primary or secondary cells), other power supply devices (a.c. or d.c.), electrical equipment (including industrial and communication), and appliances.
NOTE Z1 Only standard frequency 50 Hz is used in Europe for public a.c. transmission and distribution systems. For systems and equipment at 60 Hz, see IEC 60038.
This publication does not apply to voltages representing or transmitting signals or measured values. This publication does not apply to standard voltages of components and parts used within electrical devices or items of equipment. This publication specifies standard voltage values which are intended to serve
‒ as preferential values for ...
Упомянутые в описании и другие стандарты BS