DSH 393 Test of non-separable thin sheet material

小米

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

DSH 393   q5 R0 O, W% |/ h) U8 L

Test of non-separable thin sheet material 6 l, D' s4 g: _1 x7 a

8.8

60065(ed.6)

Standard(s):
IEC 60065:1998, 6th ed.
Sub clause(s):
8.8
8 c! [/ Y3 y6 |# YSheet No:
393
# T# b1 g% V# p; [Subject:
/ o$ T  P: S$ lTest of non-separable thin
% Y% \! Z  O, Esheet material
' M) e3 Q5 T1 }0 ]) `Key words:
- Thin sheet material
Decision taken at the 39th
meeting 2002
. w8 r6 a" Q# M7 L5 h: s; q! k" \7 ?Question:
Current technology is utilising non-separable thin sheet insulation within transformers for supplementary and
0 U. e* i: n* j; r/or reinforced insulation. How should such non-separable insulation be assessed for suitability in these
6 z: S5 [( L% e& W( N& Wapplications?
Rationale:
There are non-separable thin sheet foils on the market used in wound components, which cannot be tested
+ }6 p+ K8 n: {: _0 Z0 M' yaccording to the requirements and test-method in the existing standard. The current published
requirements in the standard do not adequately address the use on non-separable thin sheet insulation A
" V% U* e6 o+ Z7 o5 p3 O) E* |- V( kproposal was made by TC92-WG1 on how this matter can be handled.
" o/ m1 }' D1 A* j7 ~Decision:
! I; _6 x! g6 o6 ?  H* [# GThe following proposal shall be used until the new edition is published.
7 E1 d% A/ _. f9 H  C% CThe following amendment to the standard will be published to address this issue:
% L' p7 R$ O! r* Y" Badd to clause 8.8 For requirements for non-separable thin sheet insulation in two or more layers, see 8.xx
+ P9 o/ P( s& S. cadd new clause 8.xx
+ G0 F9 x1 N7 e4 b8.xx Requirements for non-separable thin sheet insulation in two or more layers
Three separate test specimens of the sheet of 70 mm width shall be supplied by the manufacturer. The test
is carried out by fixing a specimen on a mandrel made of steel, nickel plated, or brass with smooth surface
, N  U& w9 z; ofinish as shown in figure x. A metal foil (aluminium or copper) 0,035 mm ± 0,005 mm thick shall be placed
9 d' W6 g$ d( [3 v$ j7 xclose to the surface of the specimen and submitted to a pull of 1 N. The metal foil shall be so positioned that
, Q7 ^) W( G3 z( Z9 _% t5 {" |its edges are 20 mm away from the edge of the specimen and, when the mandrel is in its final position, it
$ ?7 s( F% r' A; {% X. Q! Mcovers the edges upon which the specimen is lying by at least 10 mm. The specimen is submitted to a pull
7 h! v% G% ]* L- z7 D7 {# }of 150 N at its free end by an appropriate clamping device. The specimen shall be slowly rotated forwards
. N- j4 h5 Z+ l/ Y0 _1 Wand backwards three times by 230° without jerks. If the specimen breaks at the clamping device during the
. N* X, N9 S! c9 O& [0 s* Krotation, the test is repeated. If one or more specimens break at any other place, the test is not fulfilled.
While the mandrel is in its final position, within the minute following the final positioning, a test voltage of 1,5
5 \8 ]9 n0 J4 U! G6 E* `* x4 Otimes the value specified in table 5 is applied, as described in 10.3.2, between the mandrel and the metal
foil. No flashover or breakdown shall occur during the test, corona effects and similar phenomena being
9 t! [5 j; e4 zdisregarded.
add new Figure x (Figure 6 of IEC 61558-1)
8 X% |: W- e& j, F/ x; h# S

6 P2 s' ^" v1 x5 c' r7 u4 K) V