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4.5.5 Resistance to abnormal heat
$ C3 V1 L" _; J: _Thermoplastic parts on which parts at HAZARDOUS VOLTAGE are directly mounted shall be resistant% M2 D$ x* }4 a+ U
to abnormal heat.
- ]: I" G# v1 _/ Y0 V- qCompliance is checked by subjecting the part to the ball-pressure test according to IEC
4 g8 C; O1 Z/ ?; Z" |7 y60695-10-2. The test is not made if it is clear from examination of the physical characteristics of
$ `. n+ e7 E0 w% C# Cthe material that it will meet the requirements of this test.
' G h! S" g. {3 MThe test is made in a heating cabinet at a temperature of (T − Tamb + Tma + 15 °C) ± 2 °C.# V; Q% _) p: B9 T9 ^
However, a thermoplastic part supporting parts in a PRIMARY CIRCUIT is tested at a minimum of 125
' I, d+ Q; A4 j°C.
. r7 q; N; |9 U7 QThe significances of T, Tma and Tamb are as given in 1.4.12.1. |
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