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22.3 Appliances with pins for insertion into socket-outlets shall not impose undue strain on& x, A5 V, H/ ~9 O5 Q
these socket-outlets. The means for retaining the pins shall withstand the forces to which the
! U3 z- u4 u9 A4 d0 P* Ypins are likely to be subjected in normal use.
- U: F. d8 K+ J4 M, t) T3 \Compliance is checked by inserting the pins of the appliance into a socket-outlet without( D6 n7 Q2 Z# n
earthing contact. The socket-outlet has a horizontal pivot at a distance of 8 mm behind the% ]6 c; @+ _8 s) l& y/ k) O
engagement face of the socket-outlet and in the plane of the contact tubes. 3 K8 C) {/ X) A$ S4 E ?
! `1 x( p4 s& k) h0 n各位高手:我有两个疑问: 1 . 红色字部分说的插座要不带接地连接片,为什么呀?如果是一类电器怎么办?难道这种结构的只能是二类吗? 2.蓝色字部分怎么理解?2 c% G; A; b* L) Y
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