PURPOSE: To check:
(a) Protection against bulb-neck damage by the rim of the E27 lampholder.
(b) Contact-making in E27 lampholders with respect to lamps having dimensions adverse to contact-
making.
TESTING:
(a) When the gauge is screwed fully home with a torque of:
- 1,0 Nm* for ceramic holders,
- 0,4 Nm* for alltoher holders,
there shall be a clearance** between the gauge and the edge of the rim of the lampholder.
(b) In this position, and with the lampholder connected in the test circuit as shown, the indicator
lamp shall light.
* An increase of these values is under consideration.
** A feeler gauge with an approximate thickness of 0,08 mm and a width of 5 mm shall be used to check
that this clearance exists over the full circumference.
The test is repeated for the other holder contact.
7006-25A-2 "GO" Gauge For Lampholder E27 Purpose: to check a) the minimum dimensions of the lampholder screw thread according to sheets 7004-21 and 7004-27 b) dimension X according to sheet 7005-20 c) the machnical compatibility of the lamp holder with respect to lamps have adverse dimensions" 7006-26-4 "NOT GO" Gauge for Screw Thread Lampholder E27 Purpose: the check the maximum minor diameter of the screw thread, dimension D1, of lampholder E27 7006-21-5 Gauge for Testing Protection Against Bulb-Neck Damage And For Testing Contact- Making in Lampholder E27 Purpose: to check: a) protection against bulb-neck damage by the rim of the E27 lampholder. b) contacting-making in E27 lampholders with respect to lamps having dimensions adverse to contact making." 7006-22A-5 Gauge For Testing Contact-making and Protection Against Accidental Contact During Insertion Of Lamps in Lampholdes E27 Purpose: to check E27 lamp holders in respect of: a) contact-making with lamps having adverse dimensions. b) protection against accidental contact with live parts, viz, the cap shell, during insertion of a lamp." 7006-22B-1 Gauge for Detecting Side-contacts With Cutting-Edges in Lampholders E27Purpose: to detect the existance of cutting-edges on side-contact in E27 lamp holder. 7006-22C-1 Gauge I for Checking Side-Contact Resiliency In Lampholders E27 Purpose: to check the minimum side contacts resiliency of E27 lampholder. 7006-22D-1 Gauge II for Checking Side-Contact Resiliency In Lampholders E27 Purpose: to check the minimum side contacts resiliency of E27 lampholder.
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