28.2 Electrical connections and connections providing earthing continuity shall be constructed so that contact pressure is not transmitted through insulating material that is
$ q( I$ [* n7 Y/ e) ], _" v& rliable to shrink or to distort unless there is sufficient resiliency in the metallic parts to compensate for any possible shrinkage or distortion of the insulating material. 电气连接和提供接地连续性的连接的结构,应使接触压力不通过那些易于收缩或变形的绝缘材料来传递,除非金属零件有足够的回弹力能补偿绝缘材料任何可能的收缩或变形。
4 A" F; j$ m# O0 O4 @& {2 _NOTE Ceramic material is not liable to shrink or to distort. 注 :陶瓷材料是不易收缩或变形的。
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请问:“提供接地连续性的连接的结构”具体是什么来的?后面提到“除非金属零件有足够的回弹力能补偿绝缘材料任何可能的收缩或变形”是否表示螺钉要一个陶瓷戒子或者怎么理解? $ X1 r# _# `1 o$ W' d( P+ D, K
大家怎么理解这一条款的,请讲解一下!谢谢
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