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4.5.5 Resistance to abnormal heat3 g* r, J* J8 d" |3 j
Thermoplastic parts on which parts at HAZARDOUS VOLTAGE are directly mounted shall be resistant( \* s R, G. P4 _8 C0 p
to abnormal heat.
. M7 N* a0 A3 g7 F& H$ y4 C; CCompliance is checked by subjecting the part to the ball-pressure test according to IEC
9 q8 j' K+ l' H! t" S7 P/ O7 I60695-10-2. The test is not made if it is clear from examination of the physical characteristics of
9 I& [9 j: z; s0 A& Xthe material that it will meet the requirements of this test.3 W9 w& N6 i# M1 n ^! l
The test is made in a heating cabinet at a temperature of (T − Tamb + Tma + 15 °C) ± 2 °C. N( ]- l A, \; p( p. R6 s3 f' I5 x
However, a thermoplastic part supporting parts in a PRIMARY CIRCUIT is tested at a minimum of 125
: Q$ Y7 w) [( V: d+ F O°C.
9 \: G" k' ]# W W+ g+ ` N6 X/ sThe significances of T, Tma and Tamb are as given in 1.4.12.1. |
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