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IEC60335-1:20064 ?) V8 k5 P" {/ u
30.10 [' R6 x. A2 D# I8 ?: `
External parts of non-metallic material, parts of insulating material supporting live
0 J% O3 M K0 k. q3 _+ eparts including connections, and parts of thermoplastic material providing supplementary, u1 x* s3 I* ^, R% N) ?8 g4 p( \- F
insulation or reinforced insulation, shall be sufficiently resistant to heat if their deterioration# T ^% C+ w, Q- z& h
could cause the appliance to fail to comply with this standard.
3 }1 P7 X/ j* CThis requirement does not apply to the insulation or sheath of flexible cords or internal wiring3 J q* V" |" a3 l5 F+ e" _/ E
Compliance is checked by subjecting the relevant part to the ball pressure test of# m+ j$ C1 I# ~( l6 F9 ]
IEC 60695-10-2.3 M! T% t- c8 g$ q& j- `# w
The test is carried out at a temperature of 40 °C ± 2 °C plus the maximum temperature rise. h; ]: G( `" f+ d6 M
determined during the test of clause 11, but it shall be at least
; R# c4 b- |: j' |6 I: ^2 Y8 W; Y5 T– 75 °C ± 2 °C, for external parts;
0 a0 i9 X1 U1 y; z4 ^– 125 °C ± 2 °C, for parts supporting live parts.6 G A8 g1 m9 r. g! E) g; e- W1 p
However, for parts of thermoplastic material providing supplementary insulation or/ o0 D2 K, T) e' v( z+ y {) \. u
reinforced insulation, the test is carried out at a temperature of 25 °C ± 2 °C plus the
$ A( J4 l! |' Y) hmaximum temperature rise determined during the tests of clause 19, if this is higher. The
4 }% k g) N; P5 Mtemperature rises of 19.4 are not taken into account provided that the test is terminated by% P6 W' }' n" H, |
the operation of a non-self-resetting protective device and it is necessary to remove a
! _, D9 ~5 x4 ]# W# wcover or use a tool to reset it. |
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