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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:
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7.3.10 Bending (flexing) test
' M& M# H" x$ o! q- ANon-rewirable connectors shall be subjected to a bending test in an apparatus similar to that8 \1 ? E1 f6 q* E- Q) @
shown in Figure 2.! n8 M/ t0 \3 D# B2 F0 Y0 S- e$ F
( i q' W- m4 B3 Y$ C& `; EThe specimen is fixed to the oscillating member of the apparatus so that, when this is at the* k! d. P3 X1 J# S" z
midpoint of its travel, the axis of the flexible cable, where it enters the specimen, is vertical
8 i( c+ Z b$ a& {and passes through the axis of oscillation.
1 j: u4 \: D# e1 ^" hThe oscillating member is, by variation of distance d shown in Figure 2, so positioned that the B& }5 o6 n! k) q( }; S5 Y
flexible cable makes a minimum lateral movement when the oscillating member of the test
2 Y$ l2 T1 k) X3 ]4 G1 h) iapparatus is moved over its full travel.) `$ ~: b) f1 S4 l1 @0 f
The cable is loaded with a weight such that the force applied is
1 v2 x6 R1 x4 p7 G+ T: }& J• 20 N for non-rewirable connectors with a conductor cross-sectional area > 0,75 mm2;
7 o! X2 L4 r+ F' E$ J• 10 N for non-rewirable connectors with a conductor cross-sectional area ≤ 0,75 mm2.
- ^8 @+ i- A4 o. R$ d; {5 c" EA current equal to the rated current of the connector is passed through the conductors, the2 |. i4 b: T( \# W- G' R x, P5 @
voltage between them being the rated voltage. The protective conductor, if any, shall be! u& u8 f( v% F; j( _
loaded with a sufficient current to perform the continuity test.3 l! Z$ |9 Q7 O0 o3 b) Q6 T
The oscillating member is moved backwards and forwards through an angle of 90° (45° on9 e9 e, ^2 _* q# X: [
either side of the vertical). The number of bendings shall be specified by the DS or the- n# B, b2 }1 R& G* p
manufacturer’s specification. Preferred values are given in Table 4b. The rate of bendings
# H+ }1 y/ B1 ^+ b8 qshall be 60 per minute. One bending is one movement, either backwards or forwards.2 z3 { p" i" I6 y2 ]( H
Specimens with cables of circular cross-sectional area shall be rotated approximately 90°
0 ?# I$ Q' i& Caround the vertical axis within the oscillating part after 50 % of flexings; specimens with flat
+ d$ j& s" J& L7 cflexible cables are only bent in a direction perpendicular to the plane containing the axis of" E( w9 a, Z9 ?: `- H6 p7 f- W
the conductor.9 _* d9 C% E$ d: o7 E& W L
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