DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
DIN EN 60695-2-12
; VDE 0471-2-12:2011-10
Fire hazard testing - Part 2-12: Glowing/hot-wire based test methods - Glow-wire flammability index (GWFI) test method for materials (IEC 60695-2-12:2010); German version EN 60695-2-12:2010
Prüfungen zur Beurteilung der Brandgefahr - Teil 2-12: Prüfverfahren mit dem Glühdraht - Prüfung mit dem Glühdraht zur Entflammbarkeit (GWFI) von Werkstoffen (IEC 60695-2-12:2010); Deutsche Fassung EN 60695-2-12:2010
Overview
This part of the IEC 60695 series 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). The GWFI is the highest temperature, determined during this standardized procedure, at which the tested material a) does not ignite or, if it does, extinguishes within 30 s after removal of the glow-wire and is not totally consumed, and b) molten drips, if they occur, do not ignite the wrapping tissue. This test method is a materials test carried out on a series of standard test specimens. The data obtained, along with data from the glow-wire ignition temperature (GWIT) test method for materials, IEC 60695-2-13, can then be used in a material preselection process in accordance with IEC 60695-1-30 to judge the ability of materials to meet the requirements of IEC 60695-2-11. The responsible Committee is K 133 "Prüfverfahren zur Beurteilung der Brandgefahr von elektrotechnischen Produkten und Isolierstoffen" ("Test methods for assessing the fire hazard of electrotechnical products and insulating materials") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.
