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大家好,认证工程师说是根据:30 Resistance to heat and fire
6 ~ v% d6 v( i0 H8 v3 T30.1 External parts of non-metallic material, parts of insulating material supporting live+ G3 [0 G! U8 V& |; q Q0 B8 R
parts including connections, and parts of thermoplastic material providing supplementary
8 a" _; g* V Q+ Q$ Einsulation or reinforced insulation, shall be sufficiently resistant to heat if their deterioration
+ ]! r) B: X: P3 Fcould cause the appliance to fail to comply with this standard.- _0 N) \& r' u% f& ?+ k: v
This requirement does not apply to the insulation or sheath of flexible cords or internal wiring.2 H' U# N W E$ S: L, K
Compliance is checked by subjecting the relevant part to the ball pressure test of
+ j4 K5 @0 x2 J- Y: l/ PIEC 60695-10-2." v8 F* |, `4 `/ p/ Z5 k/ F9 r
The test is carried out at a temperature of 40 °C ± 2 °C plus the maximum temperature rise
& @. A9 w9 h9 p rdetermined during the test of clause 11, but it shall be at least
5 {2 z6 c4 E3 q$ M7 b( |: [– 75 °C ± 2 °C, for external parts; a! T* E" T) T9 C. ?4 |
– 125 °C ± 2 °C, for parts supporting live parts.
1 d: y3 @; b; y5 o; IHowever, for parts of thermoplastic material providing supplementary insulation or
/ X5 _: [/ P, ^1 f! s/ Y8 i& \. `reinforced insulation, the test is carried out at a temperature of 25 °C ± 2 °C plus the J4 `/ a" g& W. _" p0 r
maximum temperature rise determined during the tests of clause 19, if this is higher. The
2 M9 n% Z6 W5 Q9 g% ]5 Etemperature rises of 19.4 are not taken into account provided that the test is terminated by' |# v" f! c/ ?8 X
the operation of a non-self-resetting protective device and it is necessary to remove a
( O/ G8 g% L+ D, x; o2 e1 Ucover or use a tool to reset it.! l! s& _5 `0 r; y! k2 J
NOTE 1 For coil formers, only those parts that support or retain terminals in position are subjected to the test.7 r. ~ q( \, M
NOTE 2 The test is not carriedout on parts of ceramic material.* i' k0 Y( W6 [/ a+ v5 M' m
NOTE 3 The selection and sequence of tests for resistance to heat are shown in figure O.1.” |
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