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 2 e  U3 u% X* p6 z* P3 v1 r) K, F

Resistance to heat and fire ' u& {4 c. o, ]% ?

30.2.3.1   |# {2 h. d" T6 Q5 y$ x. k

60335-1(ed.4)

4 Z; W6 [0 E5 f& t" \6 c! M/ \+ yQuestion:
/ j, t; F) r% X1 B2 @  gThe 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
  M1 k8 _! r0 `' v: _/ Waccount?
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.