IEC60061-3: 7006-24C-1 E39 No Go Gauge for Caps on Finished Lamps

IEC60061-3: 7006-24C-1 E39 No Go Gauge for Caps on Finished Lamps

The drawing is intended only to illustrate the essential dimensions of the gauge.

For details of cap E39, see sheet 7004-24A.

PURPOSE: 

To check the minimum outside (major) diameter of the screw thread, dimension d, of E39 caps on finished lamps.

TESTING: 

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.

Note. - This gauge may also be used for checking unmounted caps.