No. in the U.K. See here.

Before making statements like the above, you really should check.

In France, no safety check is required by law.

No, I really should remember to add the punctuation that I intended to use.  Now corrected.
However, my mistake makes my point, doesn't it? 

Hi Bill

I had vowed not to bother with this forum any more, but you're a nice guy and it was a direct question.  No - the measure is live to earth (you can also carry out a neutral to earth).  It is testing how much impedance there will be in the event a fault current runs. Ideally you want zero.  Martin gets close to that.  With RCD protection EDF in France authorise 100 ohm.

Earth loop impedance test

Edit : When it comes to mains, if you don't know you know, then don't fiddle about.  It is not that these devices are inherently dangerous - the danger is in not understanding how they work and interact.  And particularly dangerous is to make statements that are incorrect such as "an RCD on a consumer unit will still protect a fault arising on the other side of a transformer connected to it".  Its not the device that is dangerous - its the incorrect information

Stunning.  If I understand you correctly, you had a dedicated hifi radial circuit installed, and had RCD protection to that circuit installed and tested.  And then the only thing you plug into it is a mains regenerator which isolates all the equipment plugged into it from the RCD - and ensures that equipment and its cabling can never trip the RCD and the RCD can offer no protection to anything on the other side of the regen.

Not having RCD's in the first place I get
Believing that the (vanishingly small?) risk of electrocution or fire from low current earth leaks in the case of hifi equipment means RCD's are unnecessary to protect these devices I get

Connecting and testing an RCD on a dedicated circuit only to completely disable it for anything actually using that circuit - I don't get

And I no longer care  

As we have had to putup with your vague concerns over daughter safety pray tell us how old is this daughter and what does your imagination think her curiosity might lead her to do? Does she have a history of messing with electrical equipment and causing electrical problems either to herself or the device?

If she is there when you are if a move towards this feared behaviour starts surely you can say something or take an action to control her? 

Thank you for a most entertaining thread.

And again, Richard, you are demonstrating that your fixation with RCDs denies you any ability to step back and see the bigger picture. I have already described the safety features built into the P10 (and likely other good regenerators). It has monitoring, clamping and shutdown capabilities.  Indeed, I have shutdown my P10 on a couple of occasions thus demonstrating that it is doing a good job of monitoring the output conditions.

...and before you jump at the chance to ask "what if the P10 fails" my response would be "what if the RCD fails"?

Martin

The thread is about RCD protection

Your post I was responding to was about you installing and testing RCD protection

In that context - commenting about RCD protection is hardly my fixation.  Just relevant comment.

Since we are talking about RCD protection - lets be clear what that is.  It is protection which detects a differential between live and neutral, either

1) to allow a high impedance earth to continue to provide a safety trip in the event of a live voltage on an equipment casing.  This can be quite high current (500ma) and quite slow trigger times, or
2) to protect from electrocution - which requires a trip in 5ms or less of a current of 30ma or less

In that context, all we are interested in is whether something you stick in the system (your P10) offers equivalent protection.  The fact that it shuts down to prevent popping a driver on your Ushers may be important to you , but it is not relevant to a discussion about maintaining the level of life-saver protection which electrical codes look to from RCD's.

If your P10 shuts down in less than 5ms when there is more than 30ma of current difference between live and neutral - then you have equivalent protection (of lives).  If it doesn't - you don't.

I don't have one to test whether it does or doesn't offer that life saving protection - but all I can read about it , including your comments, suggests it doesn't.  Other forms of shut down are interesting for you but irrelevant to this discussion.  I like to stay on topic.

That's fine.  You are happy with that.  It just makes the dedicated RCD on the supply to it redundant and irrelevant - and that is what I was smiling at

I give up. How can a regenerator have any concept of a speaker or its drivers?

EOT for me.

Oh well, mains.........Pinkie is a dog with a bone........whichever forum you like, 'cos he's been there, done that and got banned from a few in the process. Mains obsession is an illness. What a blessing not to be so afflicted.