DSH 580 Resistance to heat and fire

小米

广东安规检测
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IEC60335试验指甲

DSH 580 , X6 f& p. D$ H7 I" o! F

Resistance to heat and fire 8 a! \3 F, D9 _

30.2.3.1

60335-1(ed.4) 9 @  [/ ?% r9 g0 j+ O& E  G

1 d( U% @, @3 qQuestion:
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
account?
: u& ]; P8 \6 U9 t" \( {Decision:
8 \) o1 ?; T, P) H) f: |, V1 c: d+ \The glow wire test may be used as alternative of GWFI test, according to the document 61/2869/CDV.
; q, W9 x$ z! @The alone declaration of the component manufacturer concerning GWFI test is not accepted.


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