DSH 580 Resistance to heat and fire

小米

广东安规检测
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E12灯头量规

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IEC60335试验指甲

DSH 580 9 n6 |" `( B3 \9 b! A, j

Resistance to heat and fire

30.2.3.1

60335-1(ed.4) ( j/ n3 Y! x% `3 M: u

Question:
" {- x. {5 k" W5 ]; f. ?The sub-clause 30.2.3.1 requires the glow wire test on three specimens according to IEC 60695-2-12 to verify the GWFI of 850 °C of insulating materials supporting connections for current exceeding 0,2A and of parts of insulating material within a distance of 3 mm of such connections. As there are many difficulties to receive from the manufacturers the three specimens required for the GWFI test, is it possible to accept a declaration of the manufacturer, with reference to the thickness and colour, that the plastics used have a GWFI of 850 °C? Or the document 61/2869/CDV which is under vote during the IEC/TC61 has to be taken into
( x5 M: ?' q! O) Paccount?
Decision:
The glow wire test may be used as alternative of GWFI test, according to the document 61/2869/CDV.
The alone declaration of the component manufacturer concerning GWFI test is not accepted.
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