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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
$ A. J4 i# a& r3 ~; _, w8.22 Test specifications of non-separable thin sheet material G' w q P8 H5 r- c+ y
Compliance is checked by subclause 26.3 in IEC 61558-1or by the following:; A3 o: x# M5 n6 ]
Three test samples, each individual sample consisting of three or more layers of non-separable- X8 n0 M) T3 R: O
thin sheet material forming REINFORCED INSULATION, are used. One sample at a time is fixed to8 P8 \; {. H3 R& }" T
the mandrel of the test fixture (Figure 14) as shown in Figure 15.( Z6 S5 b, _% K6 o4 y. z
Copyright InternationalA downward force of 150 N ± 10 N is applied to the free end of the sample (see Figure 16),% L% ~: z' B) J0 c$ O6 a4 @4 x4 ~
using an appropriate clamping device. The mandrel is rotated by hand without jerks4 X( O& }+ r3 M5 z: B, C* i5 o
– from the initial position (Figure 15) to the final position (Figure 16) and back;5 j8 g' c$ x+ y P7 \/ e
– as above for the second time;$ O6 O6 I, c. ?1 x; Z7 X! `
– from the initial position to the final position.
, Y" O* d: m& p% l/ r8 f8 \1 t, SIf a sample breaks during rotation where it is fixed to the mandrel or the clamping device, this
' R! A8 J3 {4 u. V9 ]" bdoes not constitute a failure and the test is repeated on a fresh sample. If a sample breaks at
: l$ ^6 c5 O$ v; i( E+ e7 |1 {any other place, the test has failed.
+ F" s" Y' |) e9 S: {; E$ [After this preconditioning, a sheet of metal foil, 0,035 mm ± 0,005 mm thick, at least 200 mm, @ v ~% b6 A
long, is placed along the surface of the sample, hanging down on each side of the mandrel
% \. ^6 g/ Y; A, Q0 _6 g(see Figure 16). The surface of the foil in contact with the sample shall be conductive, not
- e8 C; h! d. n. ^3 t3 C* [oxidised or otherwise insulated. The foil is positioned so that its edges are not less than 18 mm8 }4 F- E7 P$ G0 C! J- V6 B; k3 q
from the edges of the sample (see Figure 17). The foil is then tightened by two equal weights,# s% v' [# G2 J' e
one at each end, using appropriate clamping devices.
( V7 R$ [' j, r, e/ h T2 SWhile the mandrel is in its final position, and within the 60 s following the final positioning, a% V6 q, \: X. w. T
dielectric strength test is applied between the mandrel and the metal foil in accordance with
9 q8 ~4 J2 j5 o. R. S6 @' ?$ @ H1 A9 c10.3.2, using a test voltage of 1,5 times the value specified in Table 5 for REINFORCED
. [: m0 V6 ~3 A3 B mINSULATION, but not less than 5 kV.
7 X3 n) J/ o# _* eThe entire test procedure is repeated on the other two samples.
5 t* T& R _) F4 s$ q. vNo flashover or breakdown shall occur during the test; corona effects and similar phenomena being disregarded.- m* |1 R# n- p2 L `
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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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