Beginner Conversion tips?

Post by **antiscab** » Fri, 27 Nov 2009, 12:21

you had a front ender with a lightning bolt?

if theres pics of this event, feel free to post them up.

if a car was struck by lightning, all its electrics would be history.

Matt

Post by **Johny** » Fri, 27 Nov 2009, 14:12

Carlton wrote: so it really is impossible to repair a lightning struck car?

That is a pretty hard question to answer not knowing the extent of the damage. If the damage is not bodywork and is contained to the electronics then it totally depends on the replacement cost of the ECU etc.

Post by **Carlton** » Fri, 27 Nov 2009, 14:18

ok, well thank you for you advice guys.

Post by **Electrocycle** » Fri, 27 Nov 2009, 14:46

cars can be struck by lightning with no damage at all.

Chances are there's a fair bit of electrical damage to the more sensitive parts (ECU, etc) but there is also a chance that it's blown a main fusable link and there's not much else wrong with it.
Most of the sensitive parts have a bit of protection on them.

Post by **acmotor** » Sat, 28 Nov 2009, 04:36

Is a car struck by lightning now a volt ?

Post by **Johny** » Sat, 28 Nov 2009, 04:37

More like a Megavolt (thunderous applause).

Post by **Squiggles** » Sat, 28 Nov 2009, 04:45

Will electric cars attract lightning?

Post by **acmotor** » Sat, 28 Nov 2009, 04:46

Hmmmm, just an excuse to charge more.

There's a research project.... has a prius ever been struck by lightning ?

Post by **acmotor** » Sat, 28 Nov 2009, 04:53

That's Google for you !!! you don't have to look far....here

Post by **acmotor** » Sat, 28 Nov 2009, 05:02

Squiggles wrote: Will electric cars attract lightning?

Not for any reason I can imagine !

In fact it seems from googling that it is the 12V system that suffers in a lightning strike (ECU and CAN bus systems). Much the same systems in all vehicles.
The traction voltage/pack is so well shielded/insulated that the outside world (lightning included) is non the wiser.

Electric vehicles attracting lightning would be a real urban myth. Oil companies would like to spread that one !

Post by **Squiggles** » Sat, 28 Nov 2009, 12:36

acmotor wrote:
Squiggles wrote: Will electric cars attract lightning?

Not for any reason I can imagine !

In fact it seems from googling that it is the 12V system that suffers in a lightning strike (ECU and CAN bus systems). Much the same systems in all vehicles.
The traction voltage/pack is so well shielded/insulated that the outside world (lightning included) is non the wiser.

Electric vehicles attracting lightning would be a real urban myth. Oil companies would like to spread that one !

Yes, but there would be no better way for a fast recharge

Post by **coulomb** » Sat, 28 Nov 2009, 16:08

Squiggles wrote: Yes, but there would be no better way for a fast recharge

Heh, let's see... assume a 25 kWh pack, so that's 25 * 3600 = 90 000 kJ or 90 x 10^6 joules. At 1.21 JW (I'll assume that's 1.21 * 10^9 W), that's a full charge in 74 * 10^-3 seconds, or 74 ms.

That's lightning fast!

Actually, I'm not sure that lightning lasts that long. So you might have to hang around for it to strike twice

Also, it may exceed 6C briefly... In fact, 74 ms is 2.1 x 10^-5 hours, so that's actually 48,600 C

Post by **acmotor** » Sun, 29 Nov 2009, 06:25

Ah, I see just briefly 48,600°C !

Post by **Gemini** » Sun, 06 Dec 2009, 06:43

NERDS!

Post by **Squiggles** » Sun, 06 Dec 2009, 14:39

And proud of it

Post by **Richo** » Tue, 08 Dec 2009, 00:05

coulomb wrote: Actually, I'm not sure that lightning lasts that long. So you might have to hang around for it to strike twice

My old digital camera shooting movies at 15fps defn catches ~3 frames of lightning.
Even allowing last frame for flare you should get enough in one strike

Post by **Mr Camouflage** » Tue, 08 Dec 2009, 02:47

coulomb wrote:
Squiggles wrote: Yes, but there would be no better way for a fast recharge

Heh, let's see... assume a 25 kWh pack, so that's 25 * 3600 = 90 000 kJ or 90 x 10^6 joules. At 1.21 JW (I'll assume that's 1.21 * 10^9 W), that's a full charge in 74 * 10^-3 seconds, or 74 ms.

That's lightning fast!

Actually, I'm not sure that lightning lasts that long. So you might have to hang around for it to strike twice

Also, it may exceed 6C briefly... In fact, 74 ms is 2.1 x 10^-5 hours, so that's actually 48,600 C

1.21 Jigawatts. Great Scott!
What the hell is a Jigawatt?