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The Relevance of the Glow Wire Test in Practice

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We examine the testing procedure for non-metallic materials in electrical devices with a current of 0.2A and above and explain the rules for so-called "preferred wall thicknesses" of components used for testing.

Subsequently, we provide a critical assessment of the testing procedures, a concrete practical example, and CODICO's recommendations for ensuring product and customer safety.

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PART 1: Definition and Procedure of the Test Methods

Go back to part 1 of the Whitepaper Series where we explain the test procedures defined by IEC 60335-1 (Glow Wire Tests) and describe their exact process. We also introduce the Glow Wire Flammability Index (GWFI), the Glow Wire Ignition Temperature (GWIT), and the Glow Wire End Product Test (GWEPT).

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