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IEC Standard Voltages

In North America and in the Philippines, the standard system voltages are specified in ANSI C84.1. For Europe and the rest of the world, the standard system voltages are specified in IEC 60038.

IEC 60038 specifies the standard voltages which applies to

Please note that IEC 60038 does not apply to standard voltages of components and parts used within electrical devices or items of equipment.

IEC 60038 specifies standard voltage values which are intended to serve:

The nominal voltage or highest voltage for equipment specified in IEC 60038 are mainly based on the historical development of electrical supply systems throughout the world, since these values turned out to be the most common ones and have achieved worldwide recognition. The voltage ranges mentioned in this standard have been recognized to be the most appropriate ones as a basis for design and testing of electrical equipment and systems. It is nevertheless the task of system and product standards to define appropriate testing values, testing conditions and acceptance criteria.

A Filipino Engineer, Registered Professional Engineer of Queensland (RPEQ) - Australia, and Professional Electrical Engineer (PEE - 1st Place April 1991) - Philippines with extensive experience in concept selection, front-end engineering, HV & LV detail design, construction, and commissioning of Hazardous and Non-Hazardous Area electrical installations in water and wastewater pipeline and pumping facilities, offshore platforms, hydrocarbon process plants and pipelines including related facilities. Hazardous area classification and design certification (UEENEEM015B, UEENEEM016B, UEENEEM017B).

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