Technical Articles

What is BS EN 60027-3:2018?

BS EN 60027-3:2018 is an international standard that defines various quantities and units used in electrical engineering and provides guidelines for their usage. Created by the International Electrotechnical Commission (IEC), this standard aims to promote uniformity and clarity in the field of electrical engineering, allowing for accurate communication and interpretation of technical specifications.

Benefits of BS EN 60027-3:2018

Adhering to BS EN 60027-3:2018 brings several benefits to professionals in the electrical engineering industry:

1. Consistency: The standard ensures consistency in the use of quantities and units across different electrical engineering disciplines. This helps prevent misunderstandings and errors that can occur when different terminologies are used.

2. Interoperability: BS EN 60027-3:2018 facilitates interoperability between electrical systems by providing a common language for expressing measurements and calculations. This allows engineers from different countries and organizations to collaborate seamlessly.

3. Efficiency: By adopting standardized quantities and units outlined in BS EN 60027-3:2018, professionals save time and effort in converting and clarifying technical specifications. This increases efficiency in design, analysis, and implementation processes.

Key Components of BS EN 60027-3:2018

BS EN 60027-3:2018 covers a wide range of quantities and units related to electrical engineering. Some key components of the standard include:

1. Base Quantities: The standard defines base quantities such as length, mass, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity. These quantities serve as fundamental building blocks for all other quantities.

2. Derived Quantities: BS EN 60027-3:2018 also outlines derived quantities, which are derived from the base quantities, including electrical resistance, power, voltage, frequency, and others. These derived quantities play a crucial role in electrical engineering calculations.

3. Prefixes: The standard introduces a series of prefixes, such as kilo-, mega-, giga-, milli-, micro-, nano-, etc., which can be used with quantities to express their magnitude conveniently.


BS EN 60027-3:2018 is an essential international standard for professionals in the electrical engineering industry. By adhering to this standard, industry practitioners benefit from improved consistency, interoperability, and efficiency. Understanding the key components of this standard helps ensure accurate communication and interpretation of technical specifications, contributing to high-quality electrical engineering practices.


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