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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:% N9 [ S4 m8 {' t- h
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7.3.10 Bending (flexing) test& C8 A, C* x8 @$ ?
Non-rewirable connectors shall be subjected to a bending test in an apparatus similar to that
* e. p# z5 v8 i. d2 m& A8 p8 Wshown in Figure 2.
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The specimen is fixed to the oscillating member of the apparatus so that, when this is at the, b& |$ S7 L# D6 b+ B
midpoint of its travel, the axis of the flexible cable, where it enters the specimen, is vertical
" _4 c& @' \; `& q) W5 P% qand passes through the axis of oscillation.
3 L. {4 K) j7 M7 r. d3 @The oscillating member is, by variation of distance d shown in Figure 2, so positioned that the
5 [2 h$ @. p# a& V# ]! vflexible cable makes a minimum lateral movement when the oscillating member of the test
; I9 e+ e# U; ^% O; m [apparatus is moved over its full travel.
: T* \2 i* m" i3 `0 G F3 `The cable is loaded with a weight such that the force applied is
2 m' j% s/ ?9 m5 {- z4 U: C) E1 F2 C% e• 20 N for non-rewirable connectors with a conductor cross-sectional area > 0,75 mm2;9 l* @/ M* c, `' u" V
• 10 N for non-rewirable connectors with a conductor cross-sectional area ≤ 0,75 mm2.
/ L% ?& I. t& A0 K7 ^A current equal to the rated current of the connector is passed through the conductors, the; R- E9 V$ h' [. ?; P) ?
voltage between them being the rated voltage. The protective conductor, if any, shall be
v3 B5 z- M- u& jloaded with a sufficient current to perform the continuity test.+ v8 u3 L! I" ?% S j: W
The oscillating member is moved backwards and forwards through an angle of 90° (45° on
" E# R- S: s" z# F3 K) ]either side of the vertical). The number of bendings shall be specified by the DS or the
8 i s& |5 z- O! d! |manufacturer’s specification. Preferred values are given in Table 4b. The rate of bendings% R/ t# ?8 u0 q' ?! v) M: z
shall be 60 per minute. One bending is one movement, either backwards or forwards. n1 T+ ?! P3 ^
Specimens with cables of circular cross-sectional area shall be rotated approximately 90°% ?. f/ y3 h( J/ d# A9 ~' |
around the vertical axis within the oscillating part after 50 % of flexings; specimens with flat
8 U0 d4 U8 t# k* Xflexible cables are only bent in a direction perpendicular to the plane containing the axis of
6 J# `" t" A v- n2 U6 vthe conductor.6 f$ }/ C* ~& e2 a+ B1 V
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