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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
( w- J/ L' H! U8.22 Test specifications of non-separable thin sheet material9 Z1 i5 G3 ]8 w' Q% E. S7 T
Compliance is checked by subclause 26.3 in IEC 61558-1or by the following:) d6 ?- Z# O$ y
Three test samples, each individual sample consisting of three or more layers of non-separable* ~/ L4 ~: l" j, w  E7 S
thin sheet material forming REINFORCED INSULATION, are used. One sample at a time is fixed to
7 {; J% p& }) V5 Y3 s7 S1 @! l# }the mandrel of the test fixture (Figure 14) as shown in Figure 15.
: T% U/ ^) Y4 m( E. BCopyright InternationalA downward force of 150 N ± 10 N is applied to the free end of the sample (see Figure 16),
' Q3 n7 U) }# i  Z! b" pusing an appropriate clamping device. The mandrel is rotated by hand without jerks% B; K# u0 P0 k! Y$ _$ f: V
– from the initial position (Figure 15) to the final position (Figure 16) and back;) a" }% }" ]; L
– as above for the second time;0 W4 v& u* r6 `- N
– from the initial position to the final position.' t: G) w: J5 @+ m  y2 S
If a sample breaks during rotation where it is fixed to the mandrel or the clamping device, this( @- ^  y2 A9 ]7 ^& V2 B& |
does not constitute a failure and the test is repeated on a fresh sample. If a sample breaks at1 U) \2 V6 g) h
any other place, the test has failed.; E# w8 `6 C/ `) Z) j, V$ ~
After this preconditioning, a sheet of metal foil, 0,035 mm ± 0,005 mm thick, at least 200 mm" H/ x7 e9 U$ E$ X% k& r
long, is placed along the surface of the sample, hanging down on each side of the mandrel: C: k4 l/ R! F  P1 M. w* C
(see Figure 16). The surface of the foil in contact with the sample shall be conductive, not6 Y% W! o& @: I* _; u
oxidised or otherwise insulated. The foil is positioned so that its edges are not less than 18 mm5 P, Z4 D8 c& e- n9 b
from the edges of the sample (see Figure 17). The foil is then tightened by two equal weights,, W: d! L! P. o  v7 @
one at each end, using appropriate clamping devices.9 @* L5 |, y% e2 b" x6 p1 R9 O$ `
While the mandrel is in its final position, and within the 60 s following the final positioning, a4 I" g; Q9 i2 I7 Z3 T# ?/ p8 L
dielectric strength test is applied between the mandrel and the metal foil in accordance with
; _( W& `; ^2 ~% W10.3.2, using a test voltage of 1,5 times the value specified in Table 5 for REINFORCED
+ g! \! c) H8 q2 l# S; r& I3 y( [5 VINSULATION, but not less than 5 kV.9 T' B7 m1 c, d( K3 z# S$ g! n
The entire test procedure is repeated on the other two samples.6 c9 V+ Y1 g7 Z% a' Z
No flashover or breakdown shall occur during the test; corona effects and similar phenomena being disregarded.
4 P& w: U  [. |# m, `9 a0 ?+ g. f% q9 G
, \: b0 M; @) G  f; p  D
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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