27.2 The clamping means of earthing terminals shall be adequately secured against accidental loosening.
接地端子的夹紧装置应充分牢固，以防止意外松动。
NOTE 1 In general，the constructions commonly used for current-carrying terminals，other than some terminals of the pillar type，provide sufficient resiliency to comply with this requirement. For other constructions，special provisions，such as the use of an adequately resilient part that is not likely to be removed inadvertently，may be necessary.
Terminals for the connection of external equipotential bonding conductors shall allow the connection of conductors having nominal cross-sectional areas of 2，5 mm2 to 6 mm2 and shall not be used to provide earthing continuity between different parts of the appliance. It shall not be possible to loosen the conductors without the aid of a tool.
用于连接外部等电位导线的接线端子，应允许连接从 2.5mm2~6mm2的标称横截面积的导线，并且它不应用来提供器具不同部件之间的接地连续性。不借助工具的帮助应不能松开这些导线。
NOTE 2 The earthing conductor in a supply cord is not considered to be an equipotential bonding conductor.作者: gzsl2009 时间: 2012-1-15 17:45
NOTE 2 The earthing conductor in a supply cord is not considered to be an equipotential bonding conductor.
注２说明连接电源线接地线的端子还是可以连接其它接地线的。作者: ehfhhe 时间: 2012-1-15 17:45
原文 :
NOTE 2 The earthing conductor in a supply cord is not considered to be an equipotential bonding conductor.
注２说明连接电源线接地线的端子还是可以连接其它接地线的。