Which frequency is specified for AC shore power systems in boating standards?

In boating standards, AC shore power systems primarily specify a frequency of either 50 or 60 Hz. This is consistent with the electrical standards used in most countries around the world. The rationale for the use of these frequencies is that they are the standard for electrical power generation and distribution, facilitating compatibility with nearly all shore power sources available in marinas and ports.

50 Hz is commonly used in many parts of Europe, Asia, and Africa, while 60 Hz is the norm in North America and some other regions. These frequencies ensure that marine vessels can reliably connect to shore power sources without requiring specialized equipment to convert frequencies, thus promoting safety and operational efficiency.

Other frequency options, such as 40 Hz, 70 Hz, or 30 Hz, do not align with any established standard in the boating industry, making them unsuitable for AC shore power systems. Hence, the preference for 50 or 60 Hz is based on universal application and industry norms that enhance the interoperability of electrical systems in boating contexts.