Julixing Instruments

Julixing Instruments

 
Julixing Instruments

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E12 Caps Gauges Instructions

Related gauges for E12 caps:

1. Go gauge for caps on finished lamps E12, 7006-27H-1;

Purpose: 

To check the maximum dimensions of the screw thread and dimension T1 minimum of E12 caps on finished lamps.

Testing: 

When the cap on a finished lamp has been screwed into the gauge as far as it will go, the centre contact shall be co-planar with, or project beyond surface X. When the lamp is being removed from the gauge, at least two full turns shall be required to disengage the threads.

This gauge shall be used only in conjunction with the gauge specified on sheet 7006-27J.

 


2. Additional go gauge for caps on finished lamps E12, 7006-27J-1;

Purpose: 

To check the maximum outside (major) diameter, dimension d, of E12 caps on finished lamps.

Testing: 

The gauge shall pass over the threads of the cap. The maximum force used shall not exceed 4.5N.

The gauge should be used only in conjunction with the gauge specified on sheet 7006-27H.

 


3. Not go gauge for caps on finished lamps E12, 7006-28C-1; 

Purpose: 

To check the minimum outside (major) diameter of the screw thread, dimension d, of E12 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.

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

 


4. Gauge for finished lamps fitted with E12 caps for testing contact-making, 7006-32-1.

Purpose: 

To check dimensions, particularly the combination of the cap length and blub shoulder shape, for contact-making in a lampholder.

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 until surface W reaches surface V or projects beyond it. 

    Standard:       IEC 61032 IEC 60061 IEC 60335 IEC 60529 IEC 60068 IEC 60695 VDE 0620 UL AS/NZS3112
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