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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
3 k4 d7 i/ Q, X0 } ^' w30.1 External parts of non-metallic material, parts of insulating material supporting live: `: j" ~8 H% E( z0 l: G. y
parts including connections, and parts of thermoplastic material providing supplementary% s0 J' j" j9 h/ H
insulation or reinforced insulation, shall be sufficiently resistant to heat if their deterioration3 z4 k3 [6 u: d A
could cause the appliance to fail to comply with this standard.6 f; q l3 l3 G* z; s
This requirement does not apply to the insulation or sheath of flexible cords or internal wiring.
4 o! X( ~) f) J+ [! qCompliance is checked by subjecting the relevant part to the ball pressure test of
. d1 o Y; ]8 D$ v* C+ q, ZIEC 60695-10-2.! Q4 g, ~4 B4 ]: S
The test is carried out at a temperature of 40 °C ± 2 °C plus the maximum temperature rise4 j6 m5 |6 ^" \' i! ^
determined during the test of clause 11, but it shall be at least7 X+ ~( S& `: c* `: K; W1 U
– 75 °C ± 2 °C, for external parts; p& H3 e' [7 @% \$ O2 k" O
– 125 °C ± 2 °C, for parts supporting live parts.
, d% U e4 B1 n% V, h/ X# FHowever, for parts of thermoplastic material providing supplementary insulation or0 T, R* F) F( G
reinforced insulation, the test is carried out at a temperature of 25 °C ± 2 °C plus the
1 k$ r5 ^' i& p9 E8 G1 @maximum temperature rise determined during the tests of clause 19, if this is higher. The& K4 ^& ^) p8 n" E
temperature rises of 19.4 are not taken into account provided that the test is terminated by
" l" \5 V% g% ^- q2 x- J8 e% [the operation of a non-self-resetting protective device and it is necessary to remove a6 S- H, v/ [# V2 o3 H$ j3 G) q
cover or use a tool to reset it.# ?6 }4 J7 M" v5 ?+ k) P
NOTE 1 For coil formers, only those parts that support or retain terminals in position are subjected to the test.
! ?1 U9 ~4 |( c3 z; T0 o, r7 NNOTE 2 The test is not carriedout on parts of ceramic material.
) I. f7 u8 F. GNOTE 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