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发表于 2007-6-27 10:40
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大家好，认证工程师说是根据：30 Resistance to heat and fire
4 k* Q- e5 }& y+ v, M30.1 External parts of non-metallic material, parts of insulating material supporting live
& Y- |8 a& o' r3 W2 b: i Gparts including connections, and parts of thermoplastic material providing supplementary/ j0 I2 r, ~* ?7 d" i
insulation or reinforced insulation, shall be sufficiently resistant to heat if their deterioration
$ h5 a( z f- J6 q/ G6 |could cause the appliance to fail to comply with this standard.7 Q& l8 X% w$ C T/ L
This requirement does not apply to the insulation or sheath of flexible cords or internal wiring.
7 N6 M& p2 l" ACompliance is checked by subjecting the relevant part to the ball pressure test of
$ C+ t* Y% k9 x4 I3 w0 e8 \IEC 60695-10-2.: C- n6 g: y2 g: W9 { q9 z
The test is carried out at a temperature of 40 °C ± 2 °C plus the maximum temperature rise3 E# n8 ^$ Q% a; p5 u& z' t
determined during the test of clause 11, but it shall be at least
$ B( k1 ?- ~# a– 75 °C ± 2 °C, for external parts;
9 c$ t. t* N- ^# A3 \– 125 °C ± 2 °C, for parts supporting live parts.
0 }; v! B( J/ t& Z) S V: C' G" zHowever, for parts of thermoplastic material providing supplementary insulation or
) _0 T1 \5 ]: F- T# I/ Jreinforced insulation, the test is carried out at a temperature of 25 °C ± 2 °C plus the2 m9 \( k+ Z8 p+ y" C* b
maximum temperature rise determined during the tests of clause 19, if this is higher. The, P/ @3 h% M& g1 Y( C6 l
temperature rises of 19.4 are not taken into account provided that the test is terminated by, u7 a0 `# Q5 H. _
the operation of a non-self-resetting protective device and it is necessary to remove a, x+ _ L2 V% E: y" m
cover or use a tool to reset it.
0 S; }. {' y2 L7 k7 C: h! x% R) [NOTE 1 For coil formers, only those parts that support or retain terminals in position are subjected to the test.
1 h2 g. w. f4 k2 G. E8 |/ }3 X$ zNOTE 2 The test is not carriedout on parts of ceramic material.+ ~3 s5 i9 K9 Z# ~3 k3 Z2 |
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
