60335中关于灼热丝测试问题请教

30.2.2 中描述:parts of insulating material within a distance of 3 mm of such connections, are subjected to the glow-wire test,但是后面又有描述This test is not applicable to--parts within 3 mm of any of these connections;
特求教列位高手以上理解是否准确,谢谢!