How to isolate an EV battery for emergency responders

Рет қаралды 13,342

Жыл бұрын

Road rescuers globally are encountering more electric vehicles involved in collisions where the driver or passengers need extrication.
While very low, the risk of electrocution from cutting into an EV is real. Isolating the high voltage traction battery in an EV de-energises the high voltage cables & components located around the vehicle, making it safer to work around.
Unfortunately, there's no standardisation across EV manufacturers on HOW to isolate the HV battery. So we took the opportunity at the recent EV Expo run by the ‪@AEVANational‬ in Canberra, to look at two ways.
Two responder tools, the CUT LOOP & PULL FUSE are low voltage connections that isolate high voltage systems. We also talk about the MANUAL SERVICE DISCONNECT PLUG, but this should only be used by trained mechanics as it's a direct connection to high voltage (in EVs, high voltage is over 60V & marked with orange conduit or stickers.
We've been working with the Victorian State Emergency Service & other Australian rescue agencies to start building a set of draft considerations for rescue responders when dealing with an EV, which can be downloaded here: www.evfiresafe.com/ev-extrica...
Thanks for watching!
Contact or follow EV FireSafe:
Website: www.evfiresafe.com
Online training: evfiresafe-training.thinkific...
Facebook: @evfiresafeproject
LinkedIn: / ev-f. .
IMPORTANT: This video is provided for informational purposes only. Always follow your emergency agency SOPs when attending EV fires &/or incidents.
About the EV FireSafe research project
EV FireSafe is a research project aiming to identify the risks to emergency responders when attending an electric vehicle (EV) lithium traction battery fire, particularly where that vehicle is connected to energised charging. Our all-female team are proudly funded by the Australian Department of Defence, with assistance from Deakin University.
Online training with EV FireSafe:
Installing EV charging at a commercial or government site? Complete our fast, video-based online training course for a breakdown of the risks & simple steps you can take to make your site as safe as possible for your staff, visitors, drivers & emergency responders! Go to - evfiresafe-training.thinkific...

Пікірлер: 16

@drxym Жыл бұрын

Sounds like there is woeful inconsistency in the way these emergency systems are exposed and located.

@jocogi8 Жыл бұрын

Great video, thanks for putting it together. It's worth noting that I believe the free ANCAP rescue app shows all of these different locations for each different model, and how to use them.

@garymusselwhite5948 Жыл бұрын

The Firefighter fuse is in the front bay of the vehicle and when in a front end collision may not be accessible. The mechanics service disconnect plug being in the rear passenger compartment may be the only accessible plug/ fuse in a crash etc.

@evfiresafe Жыл бұрын

Tesla's have a second loop behind the rear driver side (in Australia) window - peel & peek to find. But not many others.

@abdelrahmanalkhateeb5239 4 ай бұрын

Thank You So Much !!!

@leonardbutcher8555 9 ай бұрын

Major problems with the fireman cutout loop is that you have to be able to get into the car boot or bonnet to access it, which is less than ideal if the car has been involved in RTA then that might be impossible to do, also if its on fire, access may be prevented.

@WalkerOne 6 ай бұрын

There should be a kill switch in multiple locations manually accessible. All doors should have a manual way to open.

@Mike_lis 9 ай бұрын

This needs global standardization asap

@kumu2024 2 ай бұрын

Thanks, but the video was quite noisy. How can such important safety features vary so much between different cars? Why isn't there standardization? How can an average user, with little knowledge of electronics, manage to handle these differences? It seems like it might take a serious incident for the industry to recognize the need for consistency.

@johnrroberts7900 Жыл бұрын

Yes, excellent video. But can you imagine two electric cars (or even one electric and one petrol) colliding at night and one catches fire then the other, and the poor old firefighters are jumping around trying to pop the bonnet and work out where the "firefighter tags" are so they're not spraying water onto 800V. The boss of the team would say, "Get out of it, you're gonna get killed! Let 'em burn." And even if they CAN cool the EV battery down now, the bloody thing could re-ignite even days later!

@howardsimpson489 11 ай бұрын

Just let em burn and don't breath the fumes, move everything mobile away from it. Lithiums self destruct mostly on charge but otherwise disconnecting the HV battery makes no difference if the internal relays have already opened. Impact deployment of emergency gear on board triggers the relays. Older IC cars (XJ6 etc) often had an impact switch to kill ignition, electric fuel pumps and injection systems. Cutting the neg terminal lead on the auxiliary 12v EV battery stops ordinary wiring fires just like IC cars.

@paulscott4974 Жыл бұрын

Why are so many EVs catching fire on ships

@howardsimpson489 11 ай бұрын

They catch alight all over the place, especially cheap Chinese ones. I have an early Nissan Leaf but I do not think the old battery has enough to self ignite, perhaps might light a cigarette.

@ChazWyvern 6 ай бұрын

What all of 1 of them in 2010?

@joaquin6957 Жыл бұрын

🎊 ᎮᏒᎧᎷᎧᏕᎷ

@jacobheinz8236 10 ай бұрын

Seriously how do you organise a woman with long hair all over the place to hover around the ‘engine bay’ and a camera struggling to get a clear shot ? Ridiculous!