UL医疗插头，张力缓冲测试一直过不了

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哎，怎么个问题呢，搞不懂啊，有大神吗
1 e7 d' b1 }$ p

jjlamshushushu

UL医疗插头，张力缓冲测试?测试规范呢？

CHENGFEGO

jjlamshushushu 发表于 2014-5-30 18:05
) w# R7 n( V4 d, i; [' F5 h0 Y/ V* w" @UL医疗插头，张力缓冲测试?测试规范呢？

109 Strain Relief Tests
- ?) |' G2 u9 F7 D' s1 |109.1 General
109.1.1 After being subjected to the strain relief tests described in this section, there shall not be any
7 X* L# @$ t) u1 _, J% jdisplacement of the conductors, conductor insulation, or outer jacket of the flexible cord exceeding 1/32
. Z3 A" A" }9 \7 P' g+ Rinch (0.8 mm). There shall not be any cuts, rips, or tears in the cord insulation nor any breakage of the
attachment plug that could adversely affect the enclosure of live parts, strain relief, or grounding path
. c& x* ?/ `3 J& h9 J/ |2 M+ nintegrity.
109.2 Method A – Static pull
1 {0 K, t7 P. a; v6 S$ E6 M) R109.2.1 Each of six representative attachment plugs molded onto flexible cord, without the conductors
" M' n0 c$ x0 c1 {+ o- \3 Gterminated to the blades or grounding pin, shall be subjected to a gradually applied pull of 30 lbf (133 N)
9 U! l; n! j9 N4 b' cto the free end of the cord while the attachment plug is securely supported. The force shall be applied for
/ ]( i, J- S  \  Y: z' @- D1 minute in a direction perpendicular to the plane of cord entry.
109.3 Method B – Rotary pull
109.3.1 Each of six representative attachment plugs molded onto flexible cord, without the conductors
terminated to the blades or grounding pin, shall be subjected to a rotary cord motion while a force of 10
' }4 u6 f7 i7 V0 G$ u, X" blbf (44.5 N) is applied for 2 hours. The cord is to be rotated at a rate of approximately 9 r/min in a 3 inch
diameter (76 mm) circle at a point 6 inches (152 mm) below the cord exit with the attachment plug rigidly
" |! K. t5 o9 ]. V: B/ Emounted. (Note – This test is conveniently done with UL secureness test apparatus described in the
Standard for Wire Connectors and Soldering Lugs for Use With Copper Conductors, UL 486A, or in the
Standard for Wire Connectors for Use With Aluminum Conductors, UL 486B.)

ydqshy

jjlamshushushu 发表于 2014-5-30 18:05
UL医疗插头，张力缓冲测试?测试规范呢？

8 e# h9 f" P9 n' f0 E0 |109页的，我们是铜丝位移过不了