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大家好，认证工程师说是根据：30 Resistance to heat and fire8 Q4 i6 t7 w) |; K6 Y; I
30.1 External parts of non-metallic material, parts of insulating material supporting live
# _& d1 {5 g, N* M* m! n+ p6 Vparts including connections, and parts of thermoplastic material providing supplementary$ b" b& c; h( i* ^. R0 M% z
insulation or reinforced insulation, shall be sufficiently resistant to heat if their deterioration/ A. l* d4 S* y+ k/ z
could cause the appliance to fail to comply with this standard.7 U4 C) {8 t# u- e% }5 C
This requirement does not apply to the insulation or sheath of flexible cords or internal wiring.
! L, o3 \. Z- \. l/ F: VCompliance is checked by subjecting the relevant part to the ball pressure test of
2 y8 N: u, E6 TIEC 60695-10-2./ h9 p" Q9 _6 a8 m# P* x4 `
The test is carried out at a temperature of 40 °C ± 2 °C plus the maximum temperature rise/ e& z$ b* A4 s) F" r! P
determined during the test of clause 11, but it shall be at least* B# S. f; t9 Z; e' P2 b
– 75 °C ± 2 °C, for external parts;
3 a. r! E7 H, l0 _9 W: A- C– 125 °C ± 2 °C, for parts supporting live parts.
, L( X0 Y3 E( a+ s2 Y ]However, for parts of thermoplastic material providing supplementary insulation or
5 b+ S. |( ]2 [3 S# N, preinforced insulation, the test is carried out at a temperature of 25 °C ± 2 °C plus the
. Y4 G8 G, f8 zmaximum temperature rise determined during the tests of clause 19, if this is higher. The/ y# ]0 h/ \/ z w3 g+ @ X- H
temperature rises of 19.4 are not taken into account provided that the test is terminated by2 `* M) Y. H. G3 U8 l" {; y2 C
the operation of a non-self-resetting protective device and it is necessary to remove a
6 N! I+ b3 B% ?2 b: ucover or use a tool to reset it.
' J9 d9 m+ j n8 a7 }& E& @6 j* z5 k+ TNOTE 1 For coil formers, only those parts that support or retain terminals in position are subjected to the test.; B$ L o" {1 U% w0 P
NOTE 2 The test is not carriedout on parts of ceramic material.
8 O* v+ Q& a6 i5 p. t) _NOTE 3 The selection and sequence of tests for resistance to heat are shown in figure O.1.” |
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发表于 2007-6-26 10:09
