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[音视频产品] 不可分离薄层材料的测试装置

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楼主
发表于 2011-1-27 09:58 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
广东安规检测
有限公司提供:
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
, M8 Z# _" E0 l' g6 J. |6 ^7 p8.22 Test specifications of non-separable thin sheet material
- h7 _: T9 v3 ~1 X# C& O: l" vCompliance is checked by subclause 26.3 in IEC 61558-1or by the following:
! A" @  m* q7 h9 GThree test samples, each individual sample consisting of three or more layers of non-separable2 L& x" u3 A9 M8 c
thin sheet material forming REINFORCED INSULATION, are used. One sample at a time is fixed to
; |# X8 Q" Y# zthe mandrel of the test fixture (Figure 14) as shown in Figure 15.
" N1 T) q1 h" d8 o0 Z- OCopyright InternationalA downward force of 150 N ± 10 N is applied to the free end of the sample (see Figure 16),
8 |; ~1 r: e- A$ wusing an appropriate clamping device. The mandrel is rotated by hand without jerks0 ~5 y2 M- y/ L" F% c# a. G
– from the initial position (Figure 15) to the final position (Figure 16) and back;
0 n4 ]$ g" y; u5 `3 h4 y– as above for the second time;" u1 w0 k) q1 t  f  V9 e% T
– from the initial position to the final position., n3 }6 n4 d# @  G; J5 G
If a sample breaks during rotation where it is fixed to the mandrel or the clamping device, this3 t$ V& N- d* H' U$ g) G/ f
does not constitute a failure and the test is repeated on a fresh sample. If a sample breaks at
1 ~( M& S8 I( D' a. Q2 ~any other place, the test has failed.6 t" k7 _* _+ }% Y
After this preconditioning, a sheet of metal foil, 0,035 mm ± 0,005 mm thick, at least 200 mm
' O2 r6 Y. ~% d0 n" a) zlong, is placed along the surface of the sample, hanging down on each side of the mandrel- U+ T( ~9 W1 l% W( T( }
(see Figure 16). The surface of the foil in contact with the sample shall be conductive, not( f; }* A1 z8 f, r1 `' W) r
oxidised or otherwise insulated. The foil is positioned so that its edges are not less than 18 mm
0 l0 o" l. F1 k0 C4 wfrom the edges of the sample (see Figure 17). The foil is then tightened by two equal weights,( G" j: S  C8 V% G( A
one at each end, using appropriate clamping devices.7 T* B! E+ s' P7 \
While the mandrel is in its final position, and within the 60 s following the final positioning, a6 @, o1 K2 ~( a3 S: _& |" `
dielectric strength test is applied between the mandrel and the metal foil in accordance with
' }. P" i- e, ]6 E6 S10.3.2, using a test voltage of 1,5 times the value specified in Table 5 for REINFORCED8 x1 s* X, O  b/ |  P% J
INSULATION, but not less than 5 kV.1 a/ y/ S+ q2 s% t3 @* B
The entire test procedure is repeated on the other two samples., U  v8 z8 J9 Y/ ~: R+ V6 L2 F
No flashover or breakdown shall occur during the test; corona effects and similar phenomena being disregarded.

& o: _! P& d, i4 d' O. G9 u+ P, Q( y7 y$ K9 `; P  ^$ I
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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沙发
发表于 2013-7-2 17:24 | 只看该作者
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板凳
发表于 2015-4-28 14:20 | 只看该作者
变压器绕组芯轴,8898中有这个产品的图
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