E40 Lamp cap gauge - E40-7006-27-7 - E40-7006-28D-1 - E40-7006-52-1 - E40-7006-53-1

Go gauge for caps on finished

lamps E40

Purpose:

to check the maximum dimensions of the screw thread and

dimension T1 minimum of E40 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.

Not go gauge for caps on finished

lamps E40

Purpose:

to check the minimum outside(major) diameter of the

screw thread, dimension d, of E40 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 shal not project beyond surface X.
Only the weight of the gauge itself shall be used in the test.

Gauge for finished lamps fitted with

E40 caps for testing protection against

accidental contact E40

Purpose:

to check protection against accidental contact.
Testing: the shape of the lamp with regard to protection

against accidental contact is assumed to be correct if the

test sample being pushed as far as possible into the gauge,

plane W does not protrude beyond plane V.

Gauge for finished lamps fitted with

E40 caps for testing contact making

Purpose:

to check lamp dimensions for contact making in

I.E.C. holders.

Testing: the shape of 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.