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22.3 Appliances with pins for insertion into socket-outlets shall not impose undue strain on
, A$ ^$ e, Y) m- ]these socket-outlets. The means for retaining the pins shall withstand the forces to which the, W i5 Z) K" A; K
pins are likely to be subjected in normal use.
) ]. X7 R d, `& [2 O. F( ICompliance is checked by inserting the pins of the appliance into a socket-outlet without
6 @8 v. l' S' I' iearthing contact. The socket-outlet has a horizontal pivot at a distance of 8 mm behind the7 z# y$ O( F6 l( ], A+ X
engagement face of the socket-outlet and in the plane of the contact tubes.' D. I6 F9 _% O4 I: b+ X
The torque that has to be applied to maintain the engagement face of the socket-outlet in the
4 h. b( V1 X2 w7 ? J$ g5 E/ Wvertical plane shall not exceed 0,25 Nm.
. ?$ ]) q& {! C* f! M# E% zNOTE The torque to keep the socket-outlet itself in the vertical plane is not included in this value.7 l# u/ c) U0 t8 ?- e: r9 l) x2 @. F2 z
A new sample of the appliance is firmly held so that the retention of the pins is not affected.
% ^5 l" ?9 ^, ]0 G. t& V- O2 l/ TThe appliance is placed in a heating cabinet for 1 h at a temperature of 70 °C ± 2 °C. The3 N/ H3 }& ^% r: d, B
appliance is then removed from the heating cabinet and a pull force of 50 N is immediately
- P2 N' K8 _ c1 a5 e* {; gapplied for 1 min to each pin along their longitudinal axes.2 \( b; X9 b5 S
When the appliance has cooled down to room temperature, the pins shall not have been$ U( G' ?/ ~9 |" i
displaced by more than 1 mm.+ K" c7 _- k& J0 m, X2 d: R
Each pin is then subjected in turn to a torque of 0,4 Nm, which is applied for 1 min in each
0 ]/ B# D* M2 Y) P. N. t6 r& Y4 X6 H4 Xdirection. The pins shall not rotate unless rotation does not impair compliance with this5 O1 d7 j% B) U/ J
standard.( d/ @9 O3 R3 m1 m' K, x
6 s+ G0 K9 x1 H# p0 j
. a3 } o% W! z
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。
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发表于 2014-8-15 11:35
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