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Family charging point and daisy chain public chargers

Discussion in 'The UK and Ireland' started by Boogaloo, Apr 1, 2018.

  1. Boogaloo

    Boogaloo Member

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    Hi there

    New owner here (X) and have a couple of charging questions if you might be able to help answer either?? I’ve extensively googled and not found a definitive answer to either.

    1) My in laws have a commando plug that I can use with the UMC. Does anyone have recommendations on what i can buy to spam the 25 metre gap to the UMC? A link to a product would be extremely helpful!!

    2) separately, TfL are putting in many chargers across London that have the charge point/ bay in the wrong place for a Tesla. Is it possible/legal to use a Type 2 extension lead to make this work?

    Many thanks for your help.
     
  2. thegruf

    thegruf Active Member

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    #2 thegruf, Apr 1, 2018
    Last edited: Apr 1, 2018
    something like this?

    62196-2 Male to Female 32A EV Charging Plugs / Lead

    though I should add that this doesnt have the Tesla chargedoor opening button, so you would need to use the App, long press the reatr hatch end of the keyfob or use the main display. Not exactly a showstopping issue for the odd occasion you need it.
     
  3. WannabeOwner

    WannabeOwner Well-Known Member

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    I got some useful information in this thread

    UK domestic 3 pin extension lead

    I think you could get a Commando extension lead, that the UMC could plug into, and then have a simple Commando-to-13AMP for occasions when you need that.

    I got a 13AMP Extension lead as I am hoping to avoid a Commando that is out of reach for the UMC, and I've had plenty of occasions (weekend staying with friends) where 13AMP has been the solution

    Either way, given that the UMC is quite long I think it is worth getting an extension cable with cable one-size-up

    Recommend checking cable / plug for heat after its been running a while, and before leaving it running overnight.

    My extension cable came from here: Industrial Extension Leads
     
  4. thegruf

    thegruf Active Member

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    @Wannabeanowner - thanks for the industrial extension leads link, may well use that for other stuff ;)
     
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  5. DJP31

    DJP31 Active Member

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    • Like x 1
  6. WannabeOwner

    WannabeOwner Well-Known Member

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    Very impressive :)
     
  7. Boogaloo

    Boogaloo Member

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  8. WannabeOwner

    WannabeOwner Well-Known Member

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    I don't know enough about it to advise, but do your inlaws have 32AMP or 16AMP Commando? (different diameters).

    The fatter cable on the 32AMP one would be a benefit, for reduced voltage-drop, when combined with the UMC, particularly given that your extension is 25M in the first place, although its getting on for twice the weight (6mm vs. 2.5mm)
     
  9. Boogaloo

    Boogaloo Member

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    Truth be told I bought the thinner one 16A (caravan cable) from amazon and that’s how I found out the connectors were a different size. So that’s going back in the morning... the weight isn’t an issue as I’ll leave it in their shed.

    So yes I think it’s the 32A which I’d use but probably drop the current setting in the vehicle as I don’t want to trip their fuses. Anyway to suss out what the circuit can take so I get max benefit and minimum in law hassle?
     
  10. arg

    arg Supporting Member

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    Not in general, which is why when putting in something specifically for charging, proper chargepoints are a good thing and 32A commandos are not.

    However, if you do find a 32A socket it is convenient to be able to use it. 32A commando sockets are pretty rare on domestic premises, and in general you would expect it to be on a circuit to support at least 20A (as otherwise the smaller and much more common 16A socket would have been used). If you know why it was originally installed, or can find the breaker that feeds it, then that may give an indication.

    If it isn't on a dedicated circuit with its own breaker, then treat it with great suspicion.

    If this is a normal domestic single-phase supply, then there may be an issue not with overloading the circuit, but the supply to the entire house - which could cause great trouble and inconvenience if you end up blowing the supplier's fuse. Again, hard to tell in the general case where you don't know what the rating of the supply is, nor what the load of the rest of the house is likely to be. Best to avoid charging at times of peak usage (electric showers? Hot tub? electric heating?). Typically not an issue charging overnight, so if you trust the charging setup you can just turn it on last thing at night when nobody else is using power; but on the other hand, for a charging setup you haven't used previously, it's always good advice to start it charging at least an hour before going to bed so that you can give it a check-over that nothing is getting hot or otherwise giving trouble.

    Type2 extension leads are not legal and not widely available. However, you would only want one if you had a chargepoint with the cable attached - most standard chargepoints have a socket, so you need to provide a type2 to type2 cable of sufficient length. A cable 7m long covers pretty much any situation; so long as you are prepared to park the car facing the direction to give the shortest reach, normally a shorter one would be fine.

    I'm not sure what you are referring to with respect to TfL: the historical stuff (ex-TFL, now Source London) is socketed; Source London's new points have a tethered type1 cable at low power (that you can't use and wouldn't want to), but also a socket. If you mean rapid chargepoints that happen to have an AC output (on a type2 tethered cable), then you shouldn't be using that in the first place as it's too slow; you should be using the Tesla CHAdeMO adapter to access the CHAdeMO output on the same units.
     
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  11. Boogaloo

    Boogaloo Member

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    @arg Thank you very much. Helped me get it all sorted. CHAdeMO should help me locally alongside some creative parking.

    Also going for a 50m custom 3pin with dry box for my weekend stints.

    Cheers!
     
  12. WannabeOwner

    WannabeOwner Well-Known Member

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    When I bought mine I didn't manage to persuade myself I needed that sort of length (and indeed, so far, I haven't ...) but the right approach is definitely "longer than imaginable" and "thicker" (to offset any other attached long cable run) ... some tradeoff against "weight" (and ££ :( ) of course.

    The 13AMP, Type-2 and CHAdeMO under my bonnet are chunky things ... non-EV people usually find them a turn-off (the fact that they are "bulky" and "necessary" although, of course, 99% of the time (in a Tesla) they just sit under the bonnet.).
     
  13. arg

    arg Supporting Member

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    50m is certainly a lot of cable. If you really need that much, it would be tempting to split it into a 15m for common use and a 35m monster to add on for exceptional cases - using 16A commandos, maybe the IP67 (waterproof) version, to join the bits together.
     
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