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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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: I$ e; ~+ c. ?; t7.3.10 Bending (flexing) test4 b/ n) I) g @1 j
Non-rewirable connectors shall be subjected to a bending test in an apparatus similar to that# ~' ]6 ^, O+ a, v( t. a
shown 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
- ]% C% Z3 e2 \& ] e1 Umidpoint of its travel, the axis of the flexible cable, where it enters the specimen, is vertical1 s8 ^) Z7 k, T9 J" w5 C
and passes through the axis of oscillation.# l( {- r2 F5 i6 I
The oscillating member is, by variation of distance d shown in Figure 2, so positioned that the# U9 B/ E2 a+ s$ w, R. `1 I' e
flexible cable makes a minimum lateral movement when the oscillating member of the test3 v" F( n7 o' U$ ~+ f
apparatus is moved over its full travel.
p7 E# d) E! {% eThe cable is loaded with a weight such that the force applied is
- B8 [" }5 f- l3 Q• 20 N for non-rewirable connectors with a conductor cross-sectional area > 0,75 mm2;2 ~- h5 |* k5 G/ c9 c
• 10 N for non-rewirable connectors with a conductor cross-sectional area ≤ 0,75 mm2.
3 J9 ^! j% t; W- VA current equal to the rated current of the connector is passed through the conductors, the
% o' E" \6 k; {) _voltage between them being the rated voltage. The protective conductor, if any, shall be) N; w# d4 }4 j- V0 |. ?
loaded with a sufficient current to perform the continuity test.
! c+ j7 v) R/ Z+ f2 x# s. d* Y h# ?The oscillating member is moved backwards and forwards through an angle of 90° (45° on0 f( G& ^" p0 [ b
either side of the vertical). The number of bendings shall be specified by the DS or the
7 V1 s& c+ ~; zmanufacturer’s specification. Preferred values are given in Table 4b. The rate of bendings0 t7 W' n* M! e8 e1 d
shall be 60 per minute. One bending is one movement, either backwards or forwards.. S* A5 T+ y4 m. O: M
Specimens with cables of circular cross-sectional area shall be rotated approximately 90°* u0 C3 u# l+ {2 P9 F6 R2 V* g
around the vertical axis within the oscillating part after 50 % of flexings; specimens with flat
! R2 n3 F' t* H# \flexible cables are only bent in a direction perpendicular to the plane containing the axis of
' I7 y" U1 m6 y# c9 L- w3 M9 Gthe conductor.
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