Hardness Steel Lamp Cap Gauge For Testing Contact - Making 7006-22A-5

E27 Lampholder gauges | Gauge For Testing Contact-making and Protection Against Accidental Contact During Insertion Of Lamps in Lampholdes E27-7006-22A-5

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.

Testing:

the holder is connect in the test cirsuit as showm

a) with switch A in position 2 and switch B open, the gauge is screwed fully home.

in this position, both lamps shall light.

b) with switch A in postion 1 and switch B closed, the gauge is screwed in slowly until either of the lamps lights.

with the gauge held in this position, switch B is opened and the test probe at the side of the gauge is slid downwards as far as it will go into the space between the gauge and the holder.

in this postion the lamps shall not light.

Related gauges for E27 lamp holder:

The Hardness Steel Lamp Cap Gauge For Testing Contact - Making 7006-22A-5 is a contact-making gauge built to sheet 7006-22A-5 of IEC 60061-3. It checks contact-making with adverse-dimension lamps, protection against touching live parts during insertion, and the condition of the side contact. 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

• That the centre contact of the holder reaches the lamp cap
• That contact is maintained with lamps at the adverse end of the dimensional range
• Continuity of the test circuit, read on the indicator lamp specified in the test set-up

Specification

How the test is run

1. Fit the lampholder into the test circuit specified on the sheet, with the indicator lamp in series.
2. Insert the gauge into the holder as far as it will go, in the position and with the force the sheet specifies.
3. Read the indicator. It must light, and on the adverse-dimension variants it must light at the worst permitted geometry.
4. Repeat for the second contact where the holder has more than one.

The verdict is the holder must make electrical contact with the gauge. 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.

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.

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