1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Welcome to Speak EV, the electric car forum for all EV owners and enthusiasts.
    Our aim is to create the best, most inclusive EV forum for all makes and models of electric car.
    We'd love for you to join up and join in. It's quick, simple and free! Join Speak EV.
    Dismiss Notice

Is extending length of EV cable by connecting two together OK?

Discussion in 'General Charging Discussion' started by KevinM2, Jan 6, 2017.

  1. KevinM2

    KevinM2 New Member

    Messages:
    5
    Likes Received:
    0
    Hi everyone,

    I am new to the EV world, having only got my BMW 225xe a week or so ago...

    At the moment, I am charging my car at home using standard domestic mains, but the problem I have is that my nearest mains is 13m from where I park my car in my drive...

    I could only find 10m type2 32A cables online, so I bought a 10m and a 5m cable (male/female, both of them), and I just wanted to make sure that it is OK to tether the two together to (effectively) make a 15m cable, and it pose no problems in using it to charge my car?

    I haven't tried it yet (just in case I...) so if someone could confirm for me please that it's OK to charge using my extended cable, that would be great...

    Many thanks,
    Kevin
     
  2. andrew*debbie

    andrew*debbie Moderator

    Messages:
    4,928
    Likes Received:
    2,574
    Location:
    Anglesey
    EV:
    Nissan LEAF 24
    No it is not ok.
     
  3. Darren Griffin

    Darren Griffin Well-Known Member

    Messages:
    837
    Likes Received:
    525
    Location:
    Fleet, Hampshire
    EV:
    ,
    The male and female ends won't mate fully. They were designed that way to prevent cables being extended like this.
     
  4. KevinM2

    KevinM2 New Member

    Messages:
    5
    Likes Received:
    0
    Oh dear...that's a shame...:(

    At least I didn't try it, and I am glad I asked first.

    Out of interest, is there a particular reason?

    Thanks for getting back to me quickly...
     
  5. KevinM2

    KevinM2 New Member

    Messages:
    5
    Likes Received:
    0
    Looks like I will need to try and think of an alternative solution...
     
  6. davebodger

    davebodger Active Member Speak EV Supporter

    Messages:
    468
    Likes Received:
    225
    Location:
    London, UK
    EV:
    Mitsubishi Outlander PHEV
  7. KevinM2

    KevinM2 New Member

    Messages:
    5
    Likes Received:
    0
    Ah, so they do...Thanks! :)
     
  8. Paul_Moxhay

    Paul_Moxhay Non Member

    Messages:
    7,368
    Likes Received:
    4,171
    EV charge cables are used for many hours continuously and so connections need to be absolutely 100% or else they get hot and can catch fire.
     
    Mike Schooling and Simon Hewison like this.
  9. Surrey Plum

    Surrey Plum Active Member

    Messages:
    107
    Likes Received:
    55
    Location:
    Redhill Surrey
    EV:
    Nissan e NV200
    The cable sockets are deeper than the sockets on the untethered evse, so that the ends of cables will not mate fully. This is done specifically to stop you doing this, as Daren Griffin above said. The problem is that cables can come in different current ratings, and the evse can only detect the current rating of the cable it is directly connected to.

    If you had a 32A evse, car and 1 cable, but the second cable used to connect the car to the first cable is only rated at 16A, then the evse would not be able to detect the lower rating of the second cable and would still signal the car that 32A can be drawn.
     
  10. KevinM2

    KevinM2 New Member

    Messages:
    5
    Likes Received:
    0
    That doesn't sound good! Glad I didn't try it :)
     
  11. Mike Schooling

    Mike Schooling Well-Known Member

    Messages:
    1,465
    Likes Received:
    1,093
    Location:
    Great Malvern
    EV:
    Custom Build EV
    Plus there is nothing to stop you leaving the joined part in a puddle.

    Sent from my SM-N9005 using Tapatalk
     
    Paul_Moxhay likes this.
Loading...
Possibly Related Discussions… - extending length cable
  1. oak leaf
    Replies:
    30
    Views:
    1,615
  2. nuCharge
    Replies:
    3
    Views:
    357
  3. pixel
    Replies:
    2
    Views:
    384

Share This Page