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你这个问题没描述清楚。这个图2是IEC61984的图2，而IEC61984里面说的很清楚了：/ E! @; W1 C, b) D" W( v$ N' p' z
4 o0 U5 A1 e3 B7.3.10 Bending (flexing) test! m! Z3 v) P" S0 T3 i! [3 A5 i
Non-rewirable connectors shall be subjected to a bending test in an apparatus similar to that
2 S/ _8 t9 A. Y ]- p, ishown in Figure 2.
* ?: ~; q$ D2 ?3 [2 e- U. R4 A Y( ?" W2 L) s& N: [
The specimen is fixed to the oscillating member of the apparatus so that, when this is at the- a/ ]4 R+ f: d' o7 j) b$ v u0 H/ P
midpoint of its travel, the axis of the flexible cable, where it enters the specimen, is vertical& [ g/ J& e! o# R! A; T
and passes through the axis of oscillation.
: P, v: ?6 r- WThe oscillating member is, by variation of distance d shown in Figure 2, so positioned that the
. n/ k+ S6 K, |1 c- j; H1 l oflexible cable makes a minimum lateral movement when the oscillating member of the test
/ B) d2 J* l; R* V3 Zapparatus is moved over its full travel.
" O) B; F+ b, [* r3 I: M+ sThe cable is loaded with a weight such that the force applied is
8 T! G3 } H' R- W4 b, Q. W• 20 N for non-rewirable connectors with a conductor cross-sectional area > 0,75 mm2;
- \$ v. p3 L& D l; l! F• 10 N for non-rewirable connectors with a conductor cross-sectional area ≤ 0,75 mm2.
; y. v# X2 c* j( GA current equal to the rated current of the connector is passed through the conductors, the# B" I0 P- }. ?9 \
voltage between them being the rated voltage. The protective conductor, if any, shall be
/ ?; q7 u( @4 R4 l7 Wloaded with a sufficient current to perform the continuity test.
% R }+ K* w1 A! S: }' E. FThe oscillating member is moved backwards and forwards through an angle of 90° (45° on
- F/ o& E& L+ |either side of the vertical). The number of bendings shall be specified by the DS or the0 x: [3 A. [2 p
manufacturer’s specification. Preferred values are given in Table 4b. The rate of bendings4 ^* P0 t' J% p/ i+ c% S8 d
shall be 60 per minute. One bending is one movement, either backwards or forwards.
6 c C8 ]8 v+ Z# f, K' LSpecimens with cables of circular cross-sectional area shall be rotated approximately 90°5 k6 o/ c) ?" x& E; x4 M
around the vertical axis within the oscillating part after 50 % of flexings; specimens with flat
. p4 I7 `: D1 D; P( M/ {+ A& Aflexible cables are only bent in a direction perpendicular to the plane containing the axis of
1 E) U r8 d% K* Nthe conductor.
T( r2 i X5 Z! G) o( ^) d7 a! j
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发表于 2020-6-28 17:17
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发表于 2020-7-2 10:07
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