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Re: [EVDL] Cables inside conduit

Hi Zeke,

On my 914 I'm using the former heat tubes to run the DC power cables
from the front of the car to the back. So only 1 foot of cable is
exposed inside the passenger compartment. I'm moving the power cables
(600v, -25C to 105C) to a different heater tube from the other wires to
reduce or eliminate EMI to those wires. Nice to reuse some tubes like
that. :)

Cheers,
Peter

On 10/13/2010 11:26 AM, Zeke Yewdall wrote:
> Has anyone run their cables inside of conduit for EMI? (I'm thinking of
> longer ones, like from the bed of the truck to the engine compartment). I'm
> thinking of using EMT conduit around each cable, but am not sure if this
> would be better...or worse (because of isolating the two cables from each
> other). In my case, I have nice straight frame rails on the truck that make
> is very easy to run a 10 foot piece of EMT conduit for each cable... I know
> this is not so easy on many vehicles, especially unibody ones.
>
> Z
>
>
Bill Dube<[email protected]> wrote:
>
>> I agree 100% with Jeff on this. I would suggest #1 or #1/0 as well.
>>
>> Welding cable works excellently for this application and is reasonably
>> priced.
>>
>> Remember to keep the cables closely paired to suppress EMI. Makes it
>> possible to listen to the radio, and keeps the other car electronics
>> happier.
>>
>> Bill D.
>>
>> At 11:53 AM 10/13/2010, you wrote:
>>
>>> Hi Roland,
>>>
>>> Hate to be picky, but V = I * R. 0.00008712 Ohms/ft * 50 ft =
>>> 0.004356 Ohms. 0.004356 Ohms * 170 A = 0.74052 V
>>>
>>> Personally I feel 2/0 is overkill. But bigger is better,
>>> right? More weight and more cost and harder to route. But
>>> WTH. Me, I'd go with 1/0 or even #1. The 170 A is likely not a
>>> continuous current draw. That would be like 50 or 60 kW. Even if
>>> he had his EV somewhere he was using this much sustained power, his
>>> battery pack would drain in 10 to 20 minutes. Not to mention: Can
>>> his motor do this for this long?
>>>
>>> Regards,
>>>
>>> Jeff M
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