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4.5.5 Resistance to abnormal heat! @; J/ S; s5 o! K
Thermoplastic parts on which parts at HAZARDOUS VOLTAGE are directly mounted shall be resistant+ z4 X6 U, x5 z* M! }
to abnormal heat.
' h7 W7 e. Q1 ~' `* _# B4 ZCompliance is checked by subjecting the part to the ball-pressure test according to IEC0 O: d* [' j+ N
60695-10-2. The test is not made if it is clear from examination of the physical characteristics of
, S2 v0 k7 [, l- Sthe material that it will meet the requirements of this test.
" _& L( B- \2 R4 J( P% GThe test is made in a heating cabinet at a temperature of (T − Tamb + Tma + 15 °C) ± 2 °C.
. t( [% ^ a9 K* A7 [9 J' s0 f1 M" _4 lHowever, a thermoplastic part supporting parts in a PRIMARY CIRCUIT is tested at a minimum of 125 p3 @$ C4 c* x g$ S; k
°C.' y8 b V) w% l+ r: t: w- B
The significances of T, Tma and Tamb are as given in 1.4.12.1. |
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