Search results

...which is separated from live parts by basic insulation. Note: not all the metal on a Class I appliance needs to be earthed OR (c) has exposed-conductive-parts, but these are separated from live parts by either 'double insulation' or 'reinforced insulation' and is marked as Class II. I...

I'm sure that most of us are well aware of that. I'm assuming it's taken as read that our notional piece of equipment is 230V ac powered, so not Class III (or one of the many not-quite-Class III ELV items of equipment that are around these days). You're right, we could have Class 0, but as a...

Well no, not really. I'd think it's quite clear that if it didn't have any sort of earthing, and was completely insulated, it's clearly not Class I. So it's Class II. There are a number of ways you can use to determine that no earth is provided, from identification of inlet connectors, supply...

A Class I IR test ties line & neutral together, then puts 500V dc between them and earth. A Class II IR test ties line & neutral together, then puts 500V dc between them and a test probe. If you had a completely insulated item, but one that an earth connection was supplied to (functional...

No, I wouldn't. FWIW, and even though I quoted it, I'm not a great fan of the 'treat as Class I' rule. But nor would I automatically treat anything that has no exposed-conductive-parts as Class II either. For one thing, the IR tests are different for Class I and II, in in-service I&T...

No, I wouldn't. I'd fail it (if doing 'PAT'), and be on to the manufacturers to investigate the contradiction.

However, they are definitely not Class II, or they would bear the construction mark. Nor are they Class III, obviously So what class does that leave? A general rule given in the IEE COPISTEE is 'if it is not known whether an item of equipment is Class I or Class II, it should be treated...

Oh, he made a right old nuisance of himself there. Threads running to 1000's of posts, him versus everyone else. It was glorious.

An earth connection may be used for purely functional, rather than protective purposes, so wouldn't be a cpc. For instance, a switched-mode power supply (say for a laptop etc.) will need an earth connection for the leakage, but could be fully plastic encased, and not even bring the earth...

MySparky. Hmmm. It couldn't be, could it? Now he's been effectively shoved off the IET boards. It not David Cockburn, is it?

Are you absolutely sure about that? Both Class I and II equipment/appliances can be entirely insulated...

You still haven't explained what on earth you think you mean by this. Please, go into great detail as to why some Class II light fittings might require an earth connection...

No, not at all. Please re-instate your question in the opening post. It's not up to you to close a discussion, even if you were the one who started it.

Well, I've had a look at the pictures in the wiki, and can't see what the difference is between them and PBoD's picture. Care to enlighten? Something to do with the handbasin?

Sarcasm perfectly justified there, IMHO. Even if you'd Googled for "mains socket to socket device you plug in by the desktop/router" (copied directly from your opening post), you'd have got there on the first hit...

but if you use figure of 8 leads, they won't have anything to wire to the earth terminal... What about one of these, but replace the 16A connector with an IEC C14 connector (that's if you're going to use molded C13 leads): http://uk.rs-online.com/web/p/mains-socket-testers/0253535/

But it appears that in this case, CCS (TM) stands for Connectix Cabling Systems (TM) Edit: Damn! Beaten to it!

The Freeview HD Channels are 50: BBC ONE HD 51: ITV 1 HD 52: 4 HD 53: Clirlun (Wales only) 54: BBC HD You may need to retune your receiver to get the all the above. BBC TWO is not available on HD. Details here: http://www.freeview.co.uk/HD

Is it really beyond your wit to realise there is an 'Audio Visual' forum on this website? 'Questions, discussions and problems regarding televisions, satellite systems, home cinema and any other audio visual related topic.' Durr.

I do agree fully with your argument, by the way.