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引用第0楼yyfyqzy于2007-06-21 20:47发表的 有关球压测试的问题 :0 N& U. ?, b5 h: A" h3 H
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. @. R& [0 E4 M% }+ b p大家好！
: @) z$ Y( h8 g5 _很郁闷！我的洗脚盆－－用发热丝紧贴盆底产生热量来保持水温37－40度，做CE认证，+ r) q1 x8 Z1 {$ C+ ]3 s3 u; Y
认证工程师打来电话说我的材料做球压测试FAIL!0 @0 n" [2 c5 `- S' C. }0 r
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以下引自IEC 60335-1-2006 Clause 30.1，供你参考。。。) e" g, ^! c! O5 u
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30 Resistance to heat and fire
) W) j/ I! ]/ T8 f30.1 External parts of non-metallic material, parts of insulating material supporting live parts including connections, and parts of thermoplastic material providing supplementary insulation or reinforced insulation, shall be sufficiently resistant to heat if their deterioration could cause the appliance to fail to comply with this standard.
) i4 c" d7 P/ }This requirement does not apply to the insulation or sheath of flexible cords or internal wiring.+ y8 w8 l' i/ F' k3 B$ t. X' i
Compliance is checked by subjecting the relevant part to the ball pressure test of IEC 60695-10-2.
/ h. K5 ~6 |) K T/ s. }+ zThe test is carried out at a temperature of 40 °C ± 2 °C plus the maximum temperature rise determined during the test of clause 11, but it shall be at least
5 Z9 i" L K5 L+ i' A% n– 75 °C ± 2 °C, for external parts;
* c: t( J9 N# M# G0 L– 125 °C ± 2 °C, for parts supporting live parts.
& ?9 p5 ^8 m2 BHowever, for parts of thermoplastic material providing supplementary insulation or reinforced insulation, the test is carried out at a temperature of 25 °C ± 2 °C plus the maximum temperature rise determined during the tests of clause 19, if this is higher. The temperature rises of 19.4 are not taken into account provided that the test is terminated by the operation of a non-self-resetting protective device and it is necessary to remove a cover or use a tool to reset it.' L+ w. o9 x" M- }6 A5 @3 v( b) f
NOTE 1 For coil formers, only those parts that support or retain terminals in position are subjected to the test.0 ]$ l% ]9 f5 j: i F4 p Q3 W
NOTE 2 The test is not carriedout on parts of ceramic material.
0 I1 O9 P1 C2 o" M3 r B; V D# eNOTE 3 The selection and sequence of tests for resistance to heat are shown in figure O.1. |
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发表于 2007-6-21 20:47
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发表于 2007-6-21 21:48
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