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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：# s. U# p! R8 M5 g) T: j# r
7 v0 V8 r% X' R M) W7.3.10 Bending (flexing) test
& y1 L- n3 h# u6 ] P3 j. _Non-rewirable connectors shall be subjected to a bending test in an apparatus similar to that9 V0 I9 s4 U6 u+ Y1 l% U
shown in Figure 2.7 g9 l4 |+ g! X: k3 Q2 v
8 ^0 \$ B8 G3 [# b, w
The specimen is fixed to the oscillating member of the apparatus so that, when this is at the% N( d& B; l: l- w D$ C
midpoint of its travel, the axis of the flexible cable, where it enters the specimen, is vertical
# p: P8 }2 Z' v* A$ @+ Q" {2 X7 J! rand passes through the axis of oscillation.4 a% q; g. U+ p4 h: z$ `
The oscillating member is, by variation of distance d shown in Figure 2, so positioned that the8 j3 C% ^# ]! |4 ^, j: N
flexible cable makes a minimum lateral movement when the oscillating member of the test' R$ i: z5 w6 d; k5 |5 k; D; h
apparatus is moved over its full travel.' k# ~, M+ H! H
The cable is loaded with a weight such that the force applied is
: v, E3 E8 R4 B( t0 n$ Z5 f+ Q3 L s• 20 N for non-rewirable connectors with a conductor cross-sectional area > 0,75 mm2;
9 s$ {7 J$ S( e- M• 10 N for non-rewirable connectors with a conductor cross-sectional area ≤ 0,75 mm2.8 z8 K. N4 ]# [3 ^! Y( \
A current equal to the rated current of the connector is passed through the conductors, the
( C% ]% N' p) Q6 p& Zvoltage between them being the rated voltage. The protective conductor, if any, shall be
% O7 N" B, O7 oloaded with a sufficient current to perform the continuity test.4 R2 K7 J) u5 X% z! o$ V
The oscillating member is moved backwards and forwards through an angle of 90° (45° on
+ j' G$ F* a0 ^* Qeither side of the vertical). The number of bendings shall be specified by the DS or the
4 V4 L* m$ R' Z/ O* h4 umanufacturer’s specification. Preferred values are given in Table 4b. The rate of bendings
1 G" ^! O, y; Y/ Nshall be 60 per minute. One bending is one movement, either backwards or forwards.7 y6 K; ^9 {* K1 f
Specimens with cables of circular cross-sectional area shall be rotated approximately 90°
5 p9 x/ e. M" a V ~around the vertical axis within the oscillating part after 50 % of flexings; specimens with flat
6 b5 \" \0 g* ?8 ?1 Kflexible cables are only bent in a direction perpendicular to the plane containing the axis of
0 L' `5 d2 Z+ p9 o; `) q3 }the conductor.
1 [: A( n, B- U' M8 n$ O H$ F: y. ^& w: G! [, h$ a J7 s6 M
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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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