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4.5.5 Resistance to abnormal heat+ I7 ~3 i: r8 ?. U# V
Thermoplastic parts on which parts at HAZARDOUS VOLTAGE are directly mounted shall be resistant* f% C; t3 t3 o( G
to abnormal heat.
% J' b8 o+ J$ ^/ R: i8 wCompliance is checked by subjecting the part to the ball-pressure test according to IEC+ d5 E& d, a1 t# ]: [8 j* {
60695-10-2. The test is not made if it is clear from examination of the physical characteristics of
7 U3 P7 f7 H1 W, _the material that it will meet the requirements of this test.
' p; U* r7 T/ \* m6 UThe test is made in a heating cabinet at a temperature of (T − Tamb + Tma + 15 °C) ± 2 °C.5 V$ H v+ t0 [& }) w9 [3 U8 g
However, a thermoplastic part supporting parts in a PRIMARY CIRCUIT is tested at a minimum of 125
5 N4 {9 e! F0 h9 r°C." l" P ~5 Y1 C9 J. c6 Z }
The significances of T, Tma and Tamb are as given in 1.4.12.1. |
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