HPWC Grounding Scheme

[Petergarrett38]

Does anyone know if in QLD I should be using TT-TN for the grounding scheme or is it IT?

 

[Onshore]

Does anyone know if in QLD I should be using TT-TN for the grounding scheme or is it IT?

TT/TN. It’s not related to Qld.

Switch 1 down 2 up.

 

[Petergarrett38]

Perfect timing thank you

 

[Onshore]

I should add a disclaimer, just in case. As a hardwired high voltage device, this should only be installed by a licensed sparky.

 

[Wol747]

Peter - just replied to your query on the US forum!

 

[Munka]

Our MEN system used across 99% of installations in Australia is known as TN-CS technically in IEC Standards, but TN is close enough and fine. But yeh, if you don't know the answer to that, maybe you shouldn't be DIYing a 32A 3 phase device You know you should have a type A RCD???

 

[Petergarrett38]

I have no idea what a type A RCD is . Full story is, I was getting my solar installed and I asked the sparky (early 20s) who was running cables about running 32amp to the garage. He said 'yea piss easy why?' I said 'I want to install this charger' he said 'I will do it for you now while Im doing the inverter.' he then did the whole thing and got to the point of the dip switches and said, the mobile service in your garage is bad can you google for me if we need TT-TN or IT?' as he couldn't remember from his training. I said TT/TN after the reply above and he said 'oh yeah that's right.' its all working perfectly now, Im generating 7.6kw of solar on average and the Model S is charging at 7kw!

 

[jamesgo]

Maybe the HPWC manual has changed but it used to be pretty light on in regards

I have no idea what a type A RCD is . Full story is, I was getting my solar installed and I asked the sparky (early 20s) who was running cables about running 32amp to the garage.

So i'm assuming you're on single phase, then you need a 40A circuit for the car to charge at 32A. Page 11: https://www.tesla.com/sites/default...ts/Wall_Connector_Install_Guide_Australia.pdf

And the charger should be on it's own RCD (residual current device) which is really just a safety switch.

 

[Petergarrett38]

Maybe the HPWC manual has changed but it used to be pretty light on in regards


So i'm assuming you're on single phase, then you need a 40A circuit for the car to charge at 32A. Page 11: https://www.tesla.com/sites/default...ts/Wall_Connector_Install_Guide_Australia.pdf

And the charger should be on it's own RCD (residual current device) which is really just a safety switch.

Yep 40amp circuit and has its own switch, the guy did it all for $50 plus cost of materials

 

[Onshore]

Maybe the HPWC manual has changed but it used to be pretty light on in regards


So i'm assuming you're on single phase, then you need a 40A circuit for the car to charge at 32A. Page 11: https://www.tesla.com/sites/default...ts/Wall_Connector_Install_Guide_Australia.pdf

And the charger should be on it's own RCD (residual current device) which is really just a safety switch.

Yeah that is a very old link (2014)

Current one is here:

https://www.tesla.com/sites/default...installation-manual-en-AU-v2.pdf?201612081439

The operating current is now a rotary selector, and it has more options. The 32A setting specifies a 32A breaker