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4.5.5 Resistance to abnormal heat
+ E* { b8 W8 G- n5 d% eThermoplastic parts on which parts at HAZARDOUS VOLTAGE are directly mounted shall be resistant/ h, G" B) O9 n' D B
to abnormal heat.
* z: S9 j; q5 R5 t- x" o: }Compliance is checked by subjecting the part to the ball-pressure test according to IEC( H6 f4 i' p/ d5 r* B: h
60695-10-2. The test is not made if it is clear from examination of the physical characteristics of0 a' G* T& F0 t U& n4 e( N0 ~/ r/ s
the material that it will meet the requirements of this test.
5 V+ }9 b' A+ D( b# iThe test is made in a heating cabinet at a temperature of (T − Tamb + Tma + 15 °C) ± 2 °C.# a% k- o$ o% ~9 r/ R. B
However, a thermoplastic part supporting parts in a PRIMARY CIRCUIT is tested at a minimum of 125; A0 q& a8 Q0 b& w+ |
°C.2 ~$ m+ d ]- ?7 o
The significances of T, Tma and Tamb are as given in 1.4.12.1. |
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