Safety Standards
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Triple Insulated Wire Type Test Crosswalk: Test Items and Parameters under IEC 62368-1 Annex J, 61558-1 Annex K and 60601-1 Annex L
A transformer often serves more than one end application. The same design may be required to comply with IEC 62368-1, IEC 61558-1 and IEC 60601-1 at the same time; and each of these three standards governs the type tests for triple insulated wire (TIW) in its own normative annex—Annex J, Annex K and Annex L. For the product safety engineer responsible for wire selection, two things need confirming before any work begins: are the "test items" required by the three annexes the same set? And are the "parameters" (working voltage, peak voltage, frequency) the same across the annexes? Both are prerequisites that must be settled before selecting a wire.
Read Full Article →IEC 62368-1 Annex J and IEC 61558-1 Annex K: The Two Safety Paths for Triple Insulated Wire, in Plain Language
IEC 62368-1 Annex J and IEC 61558-1 Annex K are two independent safety-approval paths — the difference explained in plain language, with a table of which DAH JIN wire types apply to each.
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