Cutting Edges E27 Lamp Holder Gauge For Detecting Side Contacts

E27 Lampholder Gauges | Gauge for Detecting Side-contacts with Cutting-Edges in Lampholders E27 | 7006-22B-1

Purpose:

to detect the existance of cutting-edges on side-contact in E27 lamp holder.

Testing:

the gauge is screwed home in the lampholder as far as it will go. The combination is then placed with the plunger of the gauge in a horizontal position and the plunger-face is held against the helder contacts.

In this position it shall be possible to rotate the plunger in a clockwise and an anti-clockwise direction for at least an angle of 60° in both directions.

After this test the combination is placed with the plunger in a vertical position and the plunger-face is pressed against the holder contacts with a total force of 10N.

In this position it shall be possible to rotate the plunger in a clockwise and an anti-clockwise direction for at least an angle of 60° in both directions.

The lampholder complies if the torque applied for both tests does not exceed 0.4Nm.

Related gauges for E27 lamp holder:

The Cutting Edges E27 Lamp Holder Gauge For Detecting Side Contacts is a side-contact gauge built to IEC 60061-3. The E27 cap is an Edison screw with 27 mm nominal major thread diameter — the standard mains screw cap in most of the world. Kingpo machines this gauge in-house from hardened tool steel, inspects it against the sheet before despatch and ships it with a calibration certificate, so it can go straight into an incoming-inspection or production-gauging routine.

What this gauge checks

• Presence and position of the side contact in the lampholder
• Resiliency of the side contact
• Absence of cutting edges on the side contact

The dimension that matters on a E27 cap is 27 mm nominal major thread diameter. It is what decides whether the lamp seats correctly and stays safe in the holder, and it is the geometry this gauge is built around.

Specification

How the test is run

1. Insert the gauge into the lampholder in the orientation specified on the sheet.
2. Check that the side contact is present and positioned within the gauge window.
3. For resiliency variants, read the deflection or the indicator in the test circuit.
4. For cutting-edge variants, inspect the contact surface after withdrawal for burrs or sharp edges.

The verdict is the side contact of the holder must be present, correctly positioned and free of cutting edges. Read the gauge, do not force it: a limit gauge that is forced into place tells you nothing about the part and damages the gauge.

GO and NOT GO — why you usually need both

A single limit gauge proves only one side of a tolerance. A GO gauge shows the part is not too small; a NOT GO gauge shows it is not too large. Running both is the only way to demonstrate a cap or a lampholder sits inside the band, and it is what an auditor will expect to see recorded. If you are building a gauge set from scratch, order the two together and keep them in the same case.

This gauge is not a GO / NOT GO pair on its own — it reads a specific feature. Pair it with the GO and NOT GO gauges of the same series when you need full dimensional coverage.

Getting the right sheet

IEC 60061-3 assigns one sheet number per gauge, and the number is what you should order against. Three things decide it: the cap family, whether you are checking a finished lamp or a lampholder, and which feature is being checked — thread, contact-making, protection against accidental contact, insertion torque or a named dimension. Sending us the sheet number avoids the most common error in this category, which is ordering a cap gauge when the test is on the holder, or the other way round.

Frequently asked questions

Is this gauge supplied with a calibration certificate?

Yes. Every Kingpo gauge is inspected against the sheet before despatch and shipped with a calibration certificate. We can also re-calibrate gauges you already hold.

Which lamps does the E27 version cover?

It covers E27 caps — 27 mm nominal major thread diameter. If your lamp uses a different cap family, the sheet number will be different; send us the cap marking and we will identify the sheet you need.

Can you make a gauge to a drawing instead of to a sheet number?

Yes. We machine to customer drawings as well as to IEC 60061-3 sheets, including modified gauges for production gauging where a full standard gauge is impractical.

What wears out on this type of gauge?

The gauging surfaces and any thread. Limit gauges are inspection tools, not production tools: keep them off the production line, store them dry, and re-calibrate on a cycle set by usage rather than by calendar.

Related gauges and equipment

Other E27 gauges in the same cap family:

• E27-7006-22C-1 Gauge I For Checking Side-Contact Resiliency In Lampholders
• E27-7006-21-5 Gauge For Testing Protection Against Bulb-Neck Damage And For Testing Contact-Making In Lampholders
• E27 Lampholder gauges -
• 7006-28A-1 E27 Lamp Cap Gauge / NOT GO Gauge For E27 Caps On Finished Lamps
• E27 Lamp Cap Gauge For Dimension S1 Of E27 Caps On Finished Lamps 7006-27C-1
• E27 Lamp Cap Gauge GO Gauge For E27 Caps On Finished Lamps 7006-27B-1

Send the standard, figure number and quantity to Kingpo technical sales for a quotation and delivery date.