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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# a9 R& x" X, Y, G& q; |" N" T7 w
8.22 Test specifications of non-separable thin sheet material
- W8 w! y- B0 B9 uCompliance is checked by subclause 26.3 in IEC 61558-1or by the following:
/ D" n4 G2 j1 l7 nThree test samples, each individual sample consisting of three or more layers of non-separable
/ G* L% J0 X* v; `% v! Wthin sheet material forming REINFORCED INSULATION, are used. One sample at a time is fixed to
' U% I7 g: K- m3 ythe mandrel of the test fixture (Figure 14) as shown in Figure 15.
9 e  V7 _# J6 _  V- b/ X7 H: xCopyright InternationalA downward force of 150 N ± 10 N is applied to the free end of the sample (see Figure 16),
6 o0 q) e; I" r- lusing an appropriate clamping device. The mandrel is rotated by hand without jerks- T6 c% w. B$ V( y5 x: |3 u
– from the initial position (Figure 15) to the final position (Figure 16) and back;" [# `  J8 A$ D% {/ [( \/ B5 J+ r8 s
– as above for the second time;
. U0 O: G; T/ d  v6 P" S6 q– from the initial position to the final position./ e9 p9 n3 x+ g. _. e' V
If a sample breaks during rotation where it is fixed to the mandrel or the clamping device, this4 w8 B3 w/ L9 P* @, D
does not constitute a failure and the test is repeated on a fresh sample. If a sample breaks at
5 V! }5 j7 E! i8 W5 Vany other place, the test has failed.
; M6 y9 f' U5 G- B% rAfter this preconditioning, a sheet of metal foil, 0,035 mm ± 0,005 mm thick, at least 200 mm# C4 a) z& M& m8 p  U
long, is placed along the surface of the sample, hanging down on each side of the mandrel
  @3 ?4 q. d5 \9 c9 k. Z" M+ r4 z(see Figure 16). The surface of the foil in contact with the sample shall be conductive, not3 \! X; s: ?3 n) s+ d; U
oxidised or otherwise insulated. The foil is positioned so that its edges are not less than 18 mm( D' ?2 u& o6 X2 y4 j+ _
from the edges of the sample (see Figure 17). The foil is then tightened by two equal weights,8 c8 H- d$ I+ M+ r; u8 ?& E% M* |
one at each end, using appropriate clamping devices./ V9 E, @: Q& l/ j- @$ A, l+ V
While the mandrel is in its final position, and within the 60 s following the final positioning, a
. [* ?+ o, O3 P7 h' e& Kdielectric strength test is applied between the mandrel and the metal foil in accordance with( {. w" `8 {  I  ~# B  ?
10.3.2, using a test voltage of 1,5 times the value specified in Table 5 for REINFORCED
8 Z$ R/ O. T# I: O$ GINSULATION, but not less than 5 kV.
7 V7 O2 h- E9 v' N$ l, b" q; _0 TThe entire test procedure is repeated on the other two samples.
* j! D& d& ~/ {: f0 _, g8 i/ \No flashover or breakdown shall occur during the test; corona effects and similar phenomena being disregarded.

: w4 @7 r& M& Y, N
( c. i) n; G  \5 _/ o1 S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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