7006-27B-1&7006-28A-1 E27灯头通止规

目的：

PURPOSE:

检验GB/T1406.1-7004-21中成品灯上灯头螺纹最大尺寸和尺寸T1min。

To check the maximum dimensions of the screw thread and dimension T1 minimum of caps on finished lamps shown on sheet 7004-2.

检验：

TESTING:

当成品灯上的灯头完全旋入量规内时，灯头中心触点应与X面共面或者凸出X面。

When the cap on a finished lamp has been screwed into the gauges as far as it will go, the centre contact shall be co-planar with, or project beyond surface X.

____________________________________________________________________

目的：

Purpose:

检验GB/T1406.1-7004-21成品灯上E27灯头螺纹最小外径（尺寸d）。

To check the minum outside (major) diameter of the screw thread, dimension "d" of E27 caps on finished lamps shown on sheet 7004-21.

检验：

Testing:

当量规套在成品（灯头向上）的灯头螺纹上时，灯头中心触点不应凸出X面。

检验仅利用量规的自身质量进行。

When the gauge is placed over the thread of the cap on a finished lamp, held cap uppermost, the centre contact shall not project beyond surface "X".

Only the weight of the gauge iteself shall be used in the test.

目的：

PURPOSE:

检验GB/T1406.1-7004-21中成品灯上灯头螺纹最大尺寸和尺寸T1min。

To check the maximum dimensions of the screw thread and dimension T1 minimum of caps on finished lamps shown on sheet 7004-2.

检验：

TESTING:

当成品灯上的灯头完全旋入量规内时，灯头中心触点应与X面共面或者凸出X面。

When the cap on a finished lamp has been screwed into the gauges as far as it will go, the centre contact shall be co-planar with, or project beyond surface X.

____________________________________________________________________

目的：

Purpose:

检验GB/T1406.1-7004-21成品灯上E27灯头螺纹最小外径（尺寸d）。

To check the minum outside (major) diameter of the screw thread, dimension "d" of E27 caps on finished lamps shown on sheet 7004-21.

检验：

Testing:

当量规套在成品（灯头向上）的灯头螺纹上时，灯头中心触点不应凸出X面。

检验仅利用量规的自身质量进行。

When the gauge is placed over the thread of the cap on a finished lamp, held cap uppermost, the centre contact shall not project beyond surface "X".

Only the weight of the gauge iteself shall be used in the test.