The list for IEC60061-3 E27 lampholder and lamp cap go and not go gauges

1) Go Gauge for E27 Caps on Finished Lamps (7006-27B-1)

Purpose: to check the maximum dimensions of the screw thread and dimension T1 minimum of caps on finished lamps shown on sheet 7004-21.

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

2) Not Go Gauge for E27 Caps on Finished Lamps (7006-28A-1)

Purpose: to check the minimum outside(major) diameter of the screw thread, dimension “d” of E27 caps on finished lamps shown on sheet 7004-21

Testing: when the gauge is placed over the thread of the cap on a finished lamp, held cap uppermost, the center contact shall not project beyond surface X.

3) Go Gauge for Dimension S1 of E27 Caps on Finished Lamps (7006-27C-1)

Purpose: to check the dimension S1 minimum and S1 maximum of E27 caps on finished lamps shown on sheet 7004-21.

Testing: when the cap on a finished lamp has been pushed into the gauge as far as it will go, the plunger surface W shall be co-planar with or project beyond surface X but it shall not project beyond surface Y.  

4) Gauge for Finished Lamp fitted with E27 Caps for Testing Contact Making (7006-50-1)

Purpose: to check lamp dimensions for contact making in IEC holders.

Testing: the shape of the lamp with regard to the fit in the lampholder is assumed to be correct, if the lamp can be pushed into the gauge till plane W reaches plane V or projects beyond it.

5) Gauge for E27 Caps on Finished Lamps for Testing Protection Against Accidental Contact During Insertion (7006-51A-2)

Purpose: to check protection against accidental contact during insertion of caps E27 on finished lamps.

Testing: the shape of the lamp with regard to protection against accidental contact is assumed to be correct if, when the lamp is pushed as far as possible into the gauge, surface W does not protrude beyond surface V.

6) Gauge for E27 Caps(51*39) on Finished Lamps (7006-51-2)

Purpose: to check protection against accidental contact of cap E27/51*39 on finished lamp.

Testing: the shape of the cap with regard to protection against accidental contact is assumed to be correct if, when the cap is pushed as far as possible into the gauge, surface W does not protrude beyond surface V.