我查阅了IEC 60050-442(1998-11)
给出的定义是 type Y attachment
a method of attachment such that the flexible cable or cord can only be replaced with the aid of special purpose tools normally available to the manufacturer or his agent
NOTE – Such a method of attachment can be used either with common flexible cable and cord or with special cables or cords.
这与92版标准基本一致。作者: d601022246 时间: 2011-9-21 19:05
X:用普通工具可更换。
Y:用特殊工具才可更换,通常是器具使用了特殊的螺钉。
Z:无法换。