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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:, F) I9 G7 y/ ^
4 B+ K2 ~/ ]! w0 X" L7.3.10 Bending (flexing) test
6 p$ R* _, ]7 [ [0 Q% VNon-rewirable connectors shall be subjected to a bending test in an apparatus similar to that
$ h$ L3 Z# K4 W2 c7 e. \7 T vshown in Figure 2.) c. ~6 M" X+ r2 ]( V4 l. q
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The specimen is fixed to the oscillating member of the apparatus so that, when this is at the
) S' t( i2 V: Jmidpoint of its travel, the axis of the flexible cable, where it enters the specimen, is vertical7 o4 |' v6 g: b8 D( R
and passes through the axis of oscillation.
4 J6 W% I* }' `: u" R$ T3 WThe oscillating member is, by variation of distance d shown in Figure 2, so positioned that the" j2 C; g' v" H0 h9 \* [
flexible cable makes a minimum lateral movement when the oscillating member of the test4 U. A2 N9 L x
apparatus is moved over its full travel." Y x+ Z& A, o; ~
The cable is loaded with a weight such that the force applied is
8 n4 Y7 ?% T! ]• 20 N for non-rewirable connectors with a conductor cross-sectional area > 0,75 mm2;
: t9 N: p# k( R I. f0 J9 R5 h$ m6 c• 10 N for non-rewirable connectors with a conductor cross-sectional area ≤ 0,75 mm2.
4 G1 d+ D$ r; u. w/ QA current equal to the rated current of the connector is passed through the conductors, the' F0 R* v" d6 Z" i
voltage between them being the rated voltage. The protective conductor, if any, shall be
" }' g0 i' |% `; }& G+ uloaded with a sufficient current to perform the continuity test.
1 r+ n% Q" t8 {4 L' B5 BThe oscillating member is moved backwards and forwards through an angle of 90° (45° on) G& W' m6 x/ B/ W
either side of the vertical). The number of bendings shall be specified by the DS or the; R$ ^: ~% b4 Q1 C! z
manufacturer’s specification. Preferred values are given in Table 4b. The rate of bendings0 t1 \. v. |* S4 D P b
shall be 60 per minute. One bending is one movement, either backwards or forwards.
; K' n: D2 Y. t$ ^$ OSpecimens with cables of circular cross-sectional area shall be rotated approximately 90°
7 _# f4 U! w* D# Iaround the vertical axis within the oscillating part after 50 % of flexings; specimens with flat
$ n1 X; u1 f# i7 [flexible cables are only bent in a direction perpendicular to the plane containing the axis of
: q' |+ ^, f$ G2 s9 _2 w- othe conductor.
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# C& }6 N; ]* x0 P9 S5 j b |
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