Is this a class 1 or class 2?

[Bimble]

I am a new PAT tester for a school, and I am stuck testing a plasma globe. It has a two core wire going to it, but no class 2 mark on the appliance. As I understand it, if it has no mark I must treat it as a class 1, and it instantly fails as there is no earth bond. However, it has been passed by previous PAT testers, and I also read some advice on another part of this forum which implied that if the wire going into the appliance has 2 cores I can assume it is class 2. I don't want to throw this away unnecessarily; can anybody help me decide if it is a class 1 or a class 2 device?

Thanks

 

[snowhead]

Does it have a moulded on 13amp plug,
or a normal 13amp plug
or is the "plug" an L.V power supply?

 

[Bimble]

Does it have a moulded on 13amp plug,
or a normal 13amp plug
or is the "plug" an L.V power supply?

It has a normal 13A plug

 

[DPG]

If it has been manufactured with a 2 core mains lead fitted then it cannot be class I. But it is not ideal that it doesn't have the class II symbol. Is it a quality item or some cheap ebay thing? Can you post photos.

And just to confirm, the mains wire goes straight into the item, and not via a power supply?

 

[Bimble]

If it has been manufactured with a 2 core mains lead fitted then it cannot be class I. But it is not ideal that it doesn't have the class II symbol. Is it a quality item or some cheap ebay thing? Can you post photos.

And just to confirm, the mains wire goes straight into the item, and not via a power supply?

Yes, the mains wire goes straight in, not via a power supply. It is an ancient thing (I have found a similar one on ebay from 1986). I attach 2 photos of it....and thanks for all your help!

 

[DPG]

So it can't be class I as it has no provision for an earth. Is there no label on the device? Possibly been removed or comeuppance stuck at some point?

 

[Bimble]

So it can't be class I as it has no provision for an earth. Is there no label on the device? Possibly been removed or comeuppance stuck at some point?

OK - so can I say it is class 2 based on the fact that there are just two wires going in? There is a label on the bottom where I would expect the class 2 symbol to be, but no symbol. I am guessing that to be labelled class 2 the manufacturers have to demonstrate a level of insulation, and I can imagine that this device may be made in a country/a time with different standards. So there being no symbol may indicate that it has not been made to acceptable standards.

 

[DPG]

OK - so can I say it is class 2 based on the fact that there are just two wires going in? There is a label on the bottom where I would expect the class 2 symbol to be, but no symbol. I am guessing that to be labelled class 2 the manufacturers have to demonstrate a level of insulation, and I can imagine that this device may be made in a country/a time with different standards. So there being no symbol may indicate that it has not been made to acceptable standards.

I think I'd agree with that. A cheap product with unknown status or provenance.

 

[Avo Mk8]

I think I'd agree with that. A cheap product with unknown status or provenance.

Whether cheap or not, I think there's a good chance that this device was made before CE marking and the categorisation of insulation class, (eg 'box within box' symbol) was required to be marked on the product?

 

[DPG]

Whether cheap or not, I think there's a good chance that this device was made before CE marking and the categorisation of insulation class, (eg 'box within box' symbol) was required to be marked on the product?

Fair point. I thought it looked more recent, but you may be right yes.

 

[mainline]

Looks like it's all plastic to me.

 

[littlespark]

OP did say it was “ancient” so I agree, it could predate the “square in a square” logo

Great fun those things though…. I used to have one in the shape of a lightbulb.

 

[DPG]

Looks like it's all plastic to me.

It is, but the OP's query was that there is no class II symbol.

 

[loz2754]

I would do the full range of tests for a class 2 appliance, including IR at 500V, moving the test probe to all accessible metal and repeating the test. If the test is ok, then I would treat it as class 2.

 

[Lucien Nunes]

The requirement for the Class II symbol pre-dates CE-marking and the symbol really ought to be there. I think post No.7 sums it up.