标准摘要
[中文适用范围]： 替换现有标题页以及第 3 页和第 4 页，用 7007-1-3（第 1/10 页至第 10/10 页）替换第 7007-1-2 页（第 1/14 页至第 14/14 页），插入新图纸 7007-5-1 (1/2, 2/2), -21-1 (1/6, 2/6, 3/6, 4/6, 5/6, 6/6), -22 -1（1/6， [外文原描述]： Subscribe to IEC 60061 Database to access the full and updated content of the series.
英文名称Second supplement - Lamp caps and holders together with gauges for the control of interchangeability and safety. Part 4: Guidelines and general information