SK EN 60695-2-12:2013

Prova të rrezikut nga zjarri -Pjesa 2 -12 : Metoda prove të mbështetura në tel të nxehtë inkandeshent -Metodë prove e indeksit të ndezshmërisë të telit inkandeshent për materiale

Fire hazard testing - Part 2-12: Glowing/hot-wire based test methods - Glow-wire flammability index (GWFI) test method for materials

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IEC 60695-2-12:2010 specifies the details of the glow-wire test to be applied to test specimens of solid electrical insulating materials or other solid materials for flammability testing to determine the glow-wire flammability index (GWFI). GWFI is the highest temperature, determined during this standardized procedure, at which the tested material; does not ignite or, if it does, extinguishes within 30 s after removal of the glow-wire and is not totally consumed, and molten drips, if they occur, do not ignite the wrapping tissue. This standard is to be used in conjunction with IEC 60695-2-10 and IEC 60695-2-13. This second edition includes the following significant technical changes from the previous edition: - modified title; - addition of an Introduction; - clarification of Scope; - expansion of Clause 2: Normative references; - definitions added to Clause 3; - revision of Clause 4 to alignment with the IEC 60695-11 series to introduce guidance on test programs for material variations; - clarification of Clause 8: Conditioning (now Clause 7); - deletion of Clause 9 ''Initial measurements''; - expansion of Clause 10: Test procedures (now Clause 8); - expansion of Clause 11: Observation and measurement (now Clause 9); - clarification of Clause 12: Evaluation of test results (now Clause 10); - expansion of Clause 13: Test report (now Clause 11). This standard has the status of a basic safety publication in accordance with IEC Guide 104 and ISO/IEC Guide 51.