What is BS EN 61251 – AC voltage endurance evaluation about?
BS EN 61251 covers insulating materials and systems.
BS EN 61251 is a European Standards that deal with evaluation and qualification of electrical insulating materials and systems that protect the materials through which electric current flows.
BS EN 61251 describes many factors involved in voltage endurance tests on electrical insulating materials and systems. It describes the voltage endurance graph, lists test methods illustrating their limitations, and gives guidance for evaluating the sinusoidal a.c. voltage endurance of insulating materials and systems from the results of the tests.
BS EN 61251 is applicable over the voltage frequency range 20 Hz to 1 000 Hz. The general principles can also be applicable to other voltage shapes, including impulse voltages.
Who is BS EN 61251 - AC voltage endurance evaluation for?
BS EN 61251 on voltage endurance is relevant to:
- Electrical engineers
- Quality control and testing authorities
- Manufacturers of insulating material
- Product design engineers
Why should you use BS EN 61251 - AC voltage endurance evaluation?
Voltage endurance tests are used to compare and evaluate insulating materials and systems. It is complex to determine the capability of electrical insulating materials and systems to endure a.c. voltage stress. The results of voltage endurance tests are influenced by many factors. Therefore BS EN 61251 can be considered as an attempt to present a unified view of voltage endurance for simplified planning and analysis.
BS EN 61251 provides specifications on voltage endurance with different types of properties, test methods, and evaluation of voltage endurance with guidance on the presentation of the results. The terminology to be used in voltage endurance is also defined and explained.
Thus, compliance with BS EN 61251 gives you all the necessary information about technical terms, definition, test method, and evaluation process that proves very useful for manufacturing or while testing electrical insulating materials and systems.
With these best industry practices, you can determine the dielectric strength of electrical insulating materials and systems, which is crucial if you want to eliminate risk of voltage stresses and overall product failure.
As a result, you can demonstrate the performance, durability and reliability of insulating materials and systems. It can also play a positive role in your product development initiatives.
What’s changed since the last update?
BS EN 61251:2016 replaces the second edition of IEC TS 61251, published in 2008. This edition constitutes a technical revision.
- Upgrade from Technical Specification to an International Standard
- Clarification of issues raised since publication of IEC TS 61251