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1) E39 Go Gauge for Screw Thread of Lampholders 7006-24E-1


The drawings are intended only to illustrate the essential dimensions of the gauge.

For details of lampholder E39, see sheet 7005-24A.

PURPOSE: To check the minimum dimensions of the E39 lampholder screw thread and the maximum and minium values of dimension X. It is not intonded that this gauge be applied to lampholers with lamp-gripping features in the screw shell area.

TESTING: It shall be possible to screw the gauge into the lampholder without using undue force. When the gauge is screwed in as far as it will go, the rim of the screwed shell of the lampholder shall be co-planar with, or project beyond, surface Y1, but it shall not project beyond surface Y2.



2) E40 Go Gauges for Screw Threads of Lampholders 7006-25-7


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

For details of screw thread of lampholders E10, E14 and E40, see sheets 7004-22, 7004-23 and 7004-24 respectively.

The sharp part of the edge of the threed at the underside of the gauge for checking lampholders E10 and E14 shall be broken with a radius of 0,5 + 0,05 mm.

The sharp part of the edge of the thread at the underside of the gauge for checking lampholders E40 shall be broken with a radius of 1,0 + 0,05 mm.

An additional allowance for wear of - 0,01 mm is permitted beyond the manufacturing tolerance indicated.

PURPOSE: To check the minimum dimensions of the lampholder screw thread and dimension X shown on sheet 7005-20.

TESTING: It shall be possible to screw the gauge into the lampholder without using undue force.
(For the torque to be applied in case of doubt, see IEC 238, subclause 4.4).
When the gauge has been screwed in as far as it will go, the rim of the screw shell of the lampholder shall be co-planar with, or project beyond, surface Y1 but it shall not project beyone surface Y2.


Company introduction

HK LEE HING INDUSTRY CO., LIMITED are specialized in manufacturing special, custom built, test and measuring equipment for products testing as per international norms and offering calibration services andrelated information. Our products and services are used by research & development establishments, test laboratories, defense establishments, government institutions & manufacturing industries to fulfill the clients' requirements.


Main Products: Go No Go Gauges, IP Tester, Test Probe Kit, Impact Test Equipment, Test Probes, Spring Hammer, IEC 61032 Test Finger, AC Hipot Tester, IEC Test Probe, UL Test Probe, Material Flammability Tester, IP Code Tester, Impact Test Apparatus, Plugs and Socket Outlet Gauge, Security Testing Machine, Lamp Cap Gauge Tester, Lampholders Gauge Tester, Plug & Socket Tester, Electrical Safety Tester, LED Test Instruments, Environmental Test Equipment, Instrument Accessories, Weighing Sensor and More.


If you require equipment to test products such as home appliances, electrical accessories like switches, sockets, connectors, etc. industrial & road lighting luminaires, automobile lighting systems or related categories, we can provide the solutions you need.

We would appreciate your comments on the layout design, presentation or other aspects of our website.

Website: https://www.china-gauges.com



 Contact information 


Contacts: Nina She


E-mail: sales@china-gauges.com


TEL: +86-755-33168386


FAX: +86-755-61605199


Phone: +86-15919975191


SKYPE: nina.she@outlook.com


Address: 1F Junfeng Building, Gongle, Xixiang, Baoan District, Shenzhen, Guangdong, China


ZIP: 518102


Website: http://www.china-gauges.com/



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Contact: Eason Wang

Phone: +86-13751010017

E-mail: sales@china-gauges.com

Add: 1F Junfeng Building, Gongle, Xixiang, Baoan District, Shenzhen, Guangdong, China

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