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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:8 |/ g6 C1 Q, {; k3 A9 U/ C' [6 y
* c) E. l! \% o' m) _; Y5 w7.3.10 Bending (flexing) test$ j" H7 C4 C! s
Non-rewirable connectors shall be subjected to a bending test in an apparatus similar to that
1 R9 s# g. l+ @! P" w3 i- V6 ishown in Figure 2.7 t2 P' E! w+ l) f' B- x$ k
( F2 t3 @! R! l# c8 |5 }# H$ AThe specimen is fixed to the oscillating member of the apparatus so that, when this is at the, E& U, g# P/ B& r B w( ~
midpoint of its travel, the axis of the flexible cable, where it enters the specimen, is vertical
0 I, s# y3 s5 r/ \( dand passes through the axis of oscillation.
3 T! G/ j. Z3 ~2 sThe oscillating member is, by variation of distance d shown in Figure 2, so positioned that the
* l6 A/ O' X& z" p0 P( `flexible cable makes a minimum lateral movement when the oscillating member of the test' q& K7 }1 }" Y6 X# P2 V* X
apparatus is moved over its full travel.
" c, V5 i7 h, J5 q/ |& mThe cable is loaded with a weight such that the force applied is# H; A& \; d1 l7 c
• 20 N for non-rewirable connectors with a conductor cross-sectional area > 0,75 mm2;- r5 O; ?" B% Z( ~# Q4 l" z+ q" ~
• 10 N for non-rewirable connectors with a conductor cross-sectional area ≤ 0,75 mm2.
- H# O% O5 v7 J1 G! q9 d+ nA current equal to the rated current of the connector is passed through the conductors, the
5 P3 N+ C! q4 i( l h/ Yvoltage between them being the rated voltage. The protective conductor, if any, shall be
8 q! i0 K7 Y# _0 |% c% ~0 @loaded with a sufficient current to perform the continuity test.% K( N, q1 d/ V# z: w
The oscillating member is moved backwards and forwards through an angle of 90° (45° on t& ~: G2 m" c: A
either side of the vertical). The number of bendings shall be specified by the DS or the
; o' u" q" H" Vmanufacturer’s specification. Preferred values are given in Table 4b. The rate of bendings
0 ?' u ~" H6 S/ Hshall be 60 per minute. One bending is one movement, either backwards or forwards.# H0 I/ A! `9 Y ]/ `
Specimens with cables of circular cross-sectional area shall be rotated approximately 90°* U0 _) o2 l- S7 P
around the vertical axis within the oscillating part after 50 % of flexings; specimens with flat
y6 L8 P& u1 y! v5 {flexible cables are only bent in a direction perpendicular to the plane containing the axis of- I; }' x3 Q$ p6 C- C& s# h; \) c
the conductor.1 w, D8 h6 B. ]
% |' P9 X% ? Y7 v1 Z2 t
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