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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：
6 o( @6 P* N( Y' u' H0 N) F
& V* @2 L/ x1 |3 a- D7.3.10 Bending (flexing) test
9 D+ y7 y+ {' w" T" KNon-rewirable connectors shall be subjected to a bending test in an apparatus similar to that$ L! B# X2 }5 z `: `) o' |
shown in Figure 2.4 A1 l& @; x: P @
, ?8 h5 {* [) h! P+ t+ @7 ]" {
The specimen is fixed to the oscillating member of the apparatus so that, when this is at the
* j& V& S$ y" g/ l/ {) t- z, Z, vmidpoint of its travel, the axis of the flexible cable, where it enters the specimen, is vertical% F+ _* l1 x6 D: j u# F1 k
and passes through the axis of oscillation.
% {) ?' d" v' e; O" bThe oscillating member is, by variation of distance d shown in Figure 2, so positioned that the
) @( [4 w0 [; E/ e" f6 Nflexible cable makes a minimum lateral movement when the oscillating member of the test1 O3 I+ w4 G- ~
apparatus is moved over its full travel.
- ?; u+ u/ x3 S- W0 @" c' ^" NThe cable is loaded with a weight such that the force applied is
0 F* t1 I% d+ \% f( F• 20 N for non-rewirable connectors with a conductor cross-sectional area > 0,75 mm2;! @; K* u5 R3 S% R. r) W4 n d: t- H
• 10 N for non-rewirable connectors with a conductor cross-sectional area ≤ 0,75 mm2.; s) }! C, H3 r- s+ d r
A current equal to the rated current of the connector is passed through the conductors, the" c" @1 O! l4 k
voltage between them being the rated voltage. The protective conductor, if any, shall be
7 {( i( `# X+ R, M5 Yloaded with a sufficient current to perform the continuity test.2 |& Q) p9 E$ S9 M% i) x
The oscillating member is moved backwards and forwards through an angle of 90° (45° on9 ^3 ~' \" M' D1 T, D) l% I! o
either side of the vertical). The number of bendings shall be specified by the DS or the1 Z0 S$ }* z. m) \/ `( M- j" j
manufacturer’s specification. Preferred values are given in Table 4b. The rate of bendings
1 \4 j$ u% Q9 s: Qshall be 60 per minute. One bending is one movement, either backwards or forwards.
' Z/ b( S' l+ S4 }& X9 ISpecimens with cables of circular cross-sectional area shall be rotated approximately 90°8 u3 V& |" \; v% T( d4 ~& u
around the vertical axis within the oscillating part after 50 % of flexings; specimens with flat0 ~9 H5 Y! m, q& _5 X( {# h
flexible cables are only bent in a direction perpendicular to the plane containing the axis of
9 w$ _# e A% A3 Ythe conductor.
( s1 j+ y) v: r! t6 g4 X* ^' _9 j+ g- P5 d# ~& q
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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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