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|  DSH 580! \: i9 o- n9 I( }$ ^# A
0 [8 b9 s$ i, W6 v1 |' Y
| Resistance to heat and fire+ G0 o" l7 e1 D! B
| 30.2.3.1
3 N# t5 Q, G2 I- D | 60335-1(ed.4)
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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
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Decision:
" s% E7 _* F$ r) [4 bThe glow wire test may be used as alternative of GWFI test, according to the document 61/2869/CDV.* ]) D: f9 S6 L, a+ n: X# C5 o
The alone declaration of the component manufacturer concerning GWFI test is not accepted.
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发表于 2012-9-8 19:48
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