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Weird, that's only ~900 watts at 3.6 amps that seems to be very low, so I suspect you have your car set to run at the reduced charging rate. Bet it takes forever!

My BMW on the granny charger settles to around 10 amps for the duration of any charging session, which can be up to 18 hours long if the car is low. This will still be fine on any reasonably modern ring main in a house.
Mrdr_ev - says "I suspect you have your car set to run at the reduced charging rate" No-there is no option to do this on the Leaf as far as I know. It may be that it already had 68% charge so was on the downhill run. Maybe if I put it on when the residual charge was less than 10% there would have been a larger current draw. Frankly I don't know, but it would be nice to get someone else's input on this. I would hate to be proved wrong but am humble enough to admit it if I am.
Cheers Tony.
 

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Mrdr_ev - says "I suspect you have your car set to run at the reduced charging rate" No-there is no option to do this on the Leaf as far as I know. It may be that it already had 68% charge so was on the downhill run. Maybe if I put it on when the residual charge was less than 10% there would have been a larger current draw. Frankly I don't know, but it would be nice to get someone else's input on this. I would hate to be proved wrong but am humble enough to admit it if I am.
Cheers Tony.
Tony
My LEAF24 Granny charger pulls the full amps also, confirmed both by watching the meter (I don't have a current clamp) and in terms of the charge achieved - around 2.1kW so in the ballpark allowing for efficiency losses. I'd be surprised if the car would accept a charge at around 1kW - the minimum standard is 1.4kW. I can't imagine your car would throttle the charge at only 68% on AC.
 

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Discussion Starter #63
I would spend another £5 and an an isolator inside the garage where you spur off. Then when you go for a cruise for a month you can turn (just) the socket off.
Yeah a good point BT, I had already been pondering this and swung both ways TBH, but given the marginal cost and labour increase I'll almost most likely add it.

Assuming the end point is something like a Rolec with a 16A breaker built in, there should be no need for any additional individual protection on that spur? Is that right or would it be wise to add a fuse on the spur too. You can tell I dont really know WTF I'm talking about here :)
 

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Given the long run of cable between the garage and the charge point I'd suggest that you want to protect that against it being damaged. But, it depends on whether that's already done in your consumer unit. Is the ring main that you are spurring off from protected by a RCD?
 

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Mrdr_ev - says "I suspect you have your car set to run at the reduced charging rate" No-there is no option to do this on the Leaf as far as I know. It may be that it already had 68% charge so was on the downhill run. Maybe if I put it on when the residual charge was less than 10% there would have been a larger current draw. Frankly I don't know, but it would be nice to get someone else's input on this. I would hate to be proved wrong but am humble enough to admit it if I am.
Cheers Tony.
My question is

was the clamp meter on muticore (eg twin and earth) cable and if so is it an expensive multi core capable one?

if not, the fields from the line and neutral act to cancel each other out but not completely as one will be a little further away from the sensor (inverse square law) hence a small reading.

even the Meggars are inaccurate on multi core. You need to measure at the CU or somewhere where the cores are separated and just clamp the line.
 

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Seeing by your own admission you lack competence, what is stopping you getting in a registered electrician?
He is, see the earlier answer.
I can do the leg work with drilling holes, banging in stakes and spikes, cutting the conduit, threading cable etc etc and then my buddy from the next county who is due a visit for beer and BBQ sesh anyway, will come over and help to connect up at either end and check it. He's a sparks, not an EV specialist but he does do a lot of heavy duty power stuff.
The question is why is he not getting advice from him rather than on here?
 

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Cos he does heavy duty power stuff and therefore probably doesn’t pay the correct fat fee to Elecsa or NICEIC to be able to legally charge for and sign off domestic work?
 

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Discussion Starter #69
My buddy can do domestic and does on occasion, but his main gig is the bigger stuff. I have been having app chats with him about the whys and wherefores, but it never does any harm to ask around of those with specific experience of having these types of system fitted.

I also like to have a little background info ready in advance when talking to a pro, just to give me a better chance of not having the wool pulled over my eyes.

And as I alluded to earlier in the thread, if we all only ever went direct to the pros and never posted questions here, it would be a fairly boring forum.

Ultimately if anybody thinks that I am wrong to accept my lack of knowledge in this subject area and hence to be asking questions to make up for that, then I apologize and invite you to give me the stiff ignoring I evidently deserve.

I'll best stop asking folks, thanks for the info so far.
 

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My question is

was the clamp meter on muticore (eg twin and earth) cable and if so is it an expensive multi core capable one?

if not, the fields from the line and neutral act to cancel each other out but not completely as one will be a little further away from the sensor (inverse square law) hence a small reading.

even the Meggars are inaccurate on multi core. You need to measure at the CU or somewhere where the cores are separated and just clamp the line.
No, purely the live wire as per normal with clamp meters. I hooked a lump out of the 13a plug and used that. Kyoritsu 2800 meter had it for years bought in Aussie when I worked there always been accurate.

Tony.
 

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No, purely the live wire as per normal with clamp meters. I hooked a lump out of the 13a plug and used that. Kyoritsu 2800 meter had it for years bought in Aussie when I worked there always been accurate.

Tony.
Something weird with your car then it seems. Must take ages to charge.
 

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I also like to have a little background info ready in advance when talking to a pro, just to give me a better chance of not having the wool pulled over my eyes.
I have used that method a lot. I built my own house using individual tradesmen rather than a main builder and used that approach at each stage to tease out any shortcuts that trades use to extract more cash than is due on 'day rate' or 'job and finish' parts of the build.

Ultimately if anybody thinks that I am wrong to accept my lack of knowledge in this subject area and hence to be asking questions to make up for that, then I apologize and invite you to give me the stiff ignoring I evidently deserve.
Not at all. If you check back it is really only one member who has introduced a few abrasive entries. He is well known to me for his abrupt and often quite rude remarks so you should note the name for future reference. As you said earlier we are mostly a polite lot and quite like debating such subjects. We have always taken the view that there is no such thing as a silly question and often we are able to advise people about to fall into a well-known trap.

Please ask away but also don't expect exchanges to always be written by Ghandi.
 

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Something weird with your car then it seems. Must take ages to charge.
I really don't know. I usually just stick it on before Dinner and when I go out in the morning I disconnect it and it's always at 100%. That's using the 7kw Chargemaster supply. I only used the granny charger overnight when I stayed at a caravan in Blackpool after travelling from Bournemouth. It was fully charged in the morning each time then as well. I don't know if it's slow or not. It seemed very fast on the way up and down to the North when using the fast chargers. At one stage I stopped at Stoke Nissan with 15% charge and it had got to 95% before I finished my coffee there.

Cheers Tony.
 

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Almost the definition of the sublime to the ridiculous.
Yes, it must seem strange to other people! My sister recently remarried - a guy from Stockport who has a caravan in Blackpool. We went up there in the Summer last year and all had a great time. They have since moved down here to Poole but still have the caravan......but can't use it because of covid restrictions, site shut up now. They may have to give it up though as she is a vulnerable person with diabetes and lymphodeama (elephantitis) so is self isolating for another year or so........

If you know anyone that wants to buy a nice caravan in Blackpool.......
 

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Discussion Starter #76
Ah Blackpool, brings back memories. We owned our first house in a small town called Kirkham just to the East of Blackpool. I worked at BAE Warton a few miles round the corner, Mrs Scorzon as a planning officer in Blackpool itself. Had some great nights out in 'Pool over the years. Horrifyingly I realize that this is nearly 30 years ago now!

Sorry to hear about your sis Barfly, fingers crossed and best of luck.
 

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Yes, poor old Liz, she's been a creaking gate for years with more rabbit than Watership Down, and a heart of gold.
Bournemouth was the best place to be a teenager in the 1960's, in the days before continental holidays all the factories up North shut down for a couple of weeks at a time and the mums and dads would bring their bored daughters down to Bournemouth. My mates and I would cruise the prom and be in seventh heaven with all these gorgeous girls with funny accents missing their boyfriends........and then I married the lovely Jane!
 

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Another valid question is why are new homes still being built with no thought about future EV ownership being widespread
It is happening, some councils (eg mine) already mandate and below is link to closed consultation for building regs. I provided some specific feedback with regard to flats as we have a lot of people who struggle to get a charge point installed.

 

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It is happening, some councils (eg mine) already mandate and below is link to closed consultation for building regs.
Thanks. It took a year to get to that stage. And that was almost a year ago as well. No doubt another year to assess the responses. And then a few more years to draft legislation and even more to get it passed. Perhaps by 2040 when the main zero legislation arrives - until that gets kicked down the road as well. Great lip service exercise though.
 
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