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22.3 Appliances with pins for insertion into socket-outlets shall not impose undue strain on
8 l% w9 n/ s2 U3 b0 ~these socket-outlets. The means for retaining the pins shall withstand the forces to which the. K! ?, N" ]& e0 C* a% n
pins are likely to be subjected in normal use.
% `; b5 q2 ?0 W3 ECompliance is checked by inserting the pins of the appliance into a socket-outlet without
; K8 L0 R( |- oearthing contact. The socket-outlet has a horizontal pivot at a distance of 8 mm behind the
5 R% M% `4 k7 ]engagement face of the socket-outlet and in the plane of the contact tubes.. o8 |/ }: \2 h( W: p- S, }
The torque that has to be applied to maintain the engagement face of the socket-outlet in the
/ p' T0 l! u1 ^vertical plane shall not exceed 0,25 Nm.1 R: C! M* d) p) A4 v0 y
NOTE The torque to keep the socket-outlet itself in the vertical plane is not included in this value.0 h5 i$ b' M+ _; A/ l2 m" S& E3 \ }# }
A new sample of the appliance is firmly held so that the retention of the pins is not affected.
: ~2 F O1 X0 M- XThe appliance is placed in a heating cabinet for 1 h at a temperature of 70 °C ± 2 °C. The
- {& p* j7 S) S; Xappliance is then removed from the heating cabinet and a pull force of 50 N is immediately9 b2 ] u: |& s" @# y' A k
applied for 1 min to each pin along their longitudinal axes.
u4 h) Y3 o4 _9 ^6 i" ]When the appliance has cooled down to room temperature, the pins shall not have been
# I! L$ G3 b" r& Hdisplaced by more than 1 mm.
3 e) l+ e# w+ AEach pin is then subjected in turn to a torque of 0,4 Nm, which is applied for 1 min in each c- B: A) k9 x6 z1 l7 k* N& |) z
direction. The pins shall not rotate unless rotation does not impair compliance with this! ` W8 {) i; \7 V& N' E8 u
standard.+ j, _! e/ B! \0 g
3 {, m9 f+ t% T3 T1 u7 r# A# U$ m6 M0 @
针对直插式插头设备，如果插头扭矩0.4Nm不过，请问各位，有什么好的整改方案，谢谢。3 j, H" j( M' f5 b& {8 v
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发表于 2014-8-15 11:35
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