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IEC60065:2001+A1:2005《音频、视频及类似电子设备安全要求》中新增了8.22条对不可分离薄层材料的测试规定6 |. ?, Q$ v# _ _4 o
8.22 Test specifications of non-separable thin sheet material
0 {- z8 v8 O1 @( f4 LCompliance is checked by subclause 26.3 in IEC 61558-1or by the following:+ O, c. S v% z. V9 Y5 _
Three test samples, each individual sample consisting of three or more layers of non-separable
l0 g. v9 f. F C5 {thin sheet material forming REINFORCED INSULATION, are used. One sample at a time is fixed to
9 Z, x+ O% a) B- g* ^the mandrel of the test fixture (Figure 14) as shown in Figure 15.
' W% l/ U5 P! U0 K: ]Copyright InternationalA downward force of 150 N ± 10 N is applied to the free end of the sample (see Figure 16),
! S* K3 C0 R+ C8 |0 ^& ousing an appropriate clamping device. The mandrel is rotated by hand without jerks. q2 [' M" F4 q$ k2 k/ y
– from the initial position (Figure 15) to the final position (Figure 16) and back;2 V) x' C4 l0 v% a" m( {
– as above for the second time;
( g1 r1 `$ u- d2 y7 V5 p– from the initial position to the final position.! \1 h* a _! V4 Z9 q6 C, V# t0 a q
If a sample breaks during rotation where it is fixed to the mandrel or the clamping device, this
1 T$ o c& H. ?does not constitute a failure and the test is repeated on a fresh sample. If a sample breaks at. V ~: Y c' L' [ Q7 ?
any other place, the test has failed.
# T2 K! s- r D: m& a6 N* GAfter this preconditioning, a sheet of metal foil, 0,035 mm ± 0,005 mm thick, at least 200 mm
. {: E$ X& K, |) T+ ?long, is placed along the surface of the sample, hanging down on each side of the mandrel6 K7 t4 P* g& j1 Y
(see Figure 16). The surface of the foil in contact with the sample shall be conductive, not+ U2 d" g* t6 }- d
oxidised or otherwise insulated. The foil is positioned so that its edges are not less than 18 mm
9 f' S( p1 [$ B2 i% L' efrom the edges of the sample (see Figure 17). The foil is then tightened by two equal weights,
) K3 F V& }* g2 w( J$ K; z, Yone at each end, using appropriate clamping devices.
7 D5 q8 t9 a- f/ R- IWhile the mandrel is in its final position, and within the 60 s following the final positioning, a( u* }1 ?8 u1 g( t8 s+ l
dielectric strength test is applied between the mandrel and the metal foil in accordance with1 u' b- a F% b
10.3.2, using a test voltage of 1,5 times the value specified in Table 5 for REINFORCED
6 P! L( @( m/ S( a3 _% @$ t1 _INSULATION, but not less than 5 kV., c- v1 R+ {' g
The entire test procedure is repeated on the other two samples.- @& D& E" [: u' F, `
No flashover or breakdown shall occur during the test; corona effects and similar phenomena being disregarded. e5 \' y; Y, N7 T( u' K
4 | c# Q! t+ j! B3 g9 q$ N; M5 |/ F
有没有哪位筒子熟悉这个新设备的,或者有相关图片介绍下,谢谢 |
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