Another attack vector then how will you know it has not been compromised or indeed has the wrong code loaded by innocent error when you do a safety check ?

M..

With the AFDD how many parameters can be set, I assume they still have a bi-metallic strip in them and you cannot tell a B6 it is a C40?

reading their glossy case study, here it sounds as if they intend you to be able to tackle nuisance trips by uploading improved arc detection algorithms. Personally I'm not at all impressed that something like an EV charger working correctly tripped the original algorithm, and I'm surprised they are trumpeting having to fix it in the field as a success.

I rather hope they do retain the electromechanical bits of a conventional breaker at least for now, but the precedent for not doing so is already set.

Looking at modern  RCDs, most of these are now totally reliant on the electronics in the trip path, so a programmable RCD threshold, adjustable trip delay etc is no longer a mechanical design change.  I can see it coming that the  overload path, perhaps apart from some kind of  death or glory one shot fuse link, could well go the same way - if you were selling it, why would you not simplify your inventory in this way.

Ideally though it then needs a standardized diagnostic/status interface, even if the advanced program options are manufacturer specific.

Mike.

As a long haired individual I can say I probably can't write such a utility...lol

Have you seen the PR meltdown they had over it? 

to be honest, I can't argue with it too much, because it's probably cheaper to install the heated seats rather than maintain two sets of inventory and configurations on the production line. It's no different to me than either paying for them as an extra or not. 

It sounds like when you buy an EV, you need to make sure you get a "granny lead" to go with it.  That way you at least keep the option of charging it off a 13A socket if your smart charger fails.

But I believe that the government is thinking of banning granny leads soon.  Not that it would stop people buying cheap ones off Aliexpress or similar.

A friend has a plug in hybrid. He used a granny lead and after a few weeks it stopped working, it had overheated the plug which had melted. He had a few choice words with the dealer and after weeks of chasing was told he needed to reduce the charge rate to 8A  by pressing a button on the charger a specified number of times. Looking on the web indicated a few other people had had the same problem.

I read that webpage mapj1 linked to Hager's New Single Module RCBO AFDD in Action as saying the AFDD had to be recalibrated, because the pilot signal between a granny charger and the EV was tripping the AFDD.

I have just bought a new laptop with a solid state "hard drive". I was wandering earlier today whether it should be more or less reliable than a real spinning disc.

I might add that the reason for buying it was that the motherboard of another PC had failed. There was a rather sorry looking row of capacitors.

So I think that absence of moving parts is no guarantee of success.

maybe - the info I have says 'plug in EV charger' Which may be a plug-in hybrid car or an all-electric car with a plug in charger. In both cases the actual heavy power regulating electronics is in the car, and the charger, either granny lead or wall mounted is little more than a contactor and an interlock involving some low level pilot signals. The fact remains that if the AFDD that cannot tell between a fault and a legitimate load like a car charging then it has a problem. I'm not sure that 'ooh look you can fix that sort of problem after installation' is a positive point.

Mike