Standard Test Method for Glow-Wire Ignition of Materials

Importancia y uso:

5.1 During operation of electrical equipment, including wires, resistors, and other conductors, it is possible for overheating to occur under certain conditions of operation, or when malfunctions occur. When this happens, a possible result is ignition of the adjacent insulation material.

5.2 This test method assesses the susceptibility of electrical insulating materials to ignition as a result of exposure to a glowing wire.

5.3 This test method determines the minimum temperature required to ignite a material by the effect of a glowing heat source, under the specified conditions of test.

5.4 This method is suitable, subject to the appropriate limitations of an expected precision of ±15 %, to categorize materials.

5.5 In this procedure, the specimens are subjected to one or more specific sets of laboratory conditions. If different test conditions are substituted or the end-use conditions are changed, it is not always possible by or from this test to predict changes in the fire-test-response characteristics measured. Therefore, the results are valid only for the fire test exposure conditions described in this procedure.

Subcomité:

D09.17

Referida por:

E3020-22, D3874-20

Volúmen:

10.02

Número ICS:

13.220.40 (Ignitability and burning behaviour of materials and products), 29.035.01 (Insulating materials in general)

Palabras clave:

electrically heated sources; flame; glow-wire; ignitability; ignition; plastic electrical insulating materials;