Ask the Car People.SM


Lexus RX 400h and 450h

2363 messages,  Last post on Mar 24, 2013 at 1:44 AM

You are in the Lexus RX 400h Forum.

What is this discussion about? Lexus RX 400h, Lexus, Hybrid Cars

    

Messages Page 237 of 237

#2355 of 2363 Re: EMF [pat85] by stevedebi

Jan 15, 2009 (2:28 pm)

Replying to: pat85 (Dec 10, 2008 9:10 am)
"Further, as far as the electric motor, it is in front of the engine and under the hood. This is what's known as a Farraday shield. Why a car is the safest place in lightning is because it is steel and is a Farraday shield. "
 
I thought the lightning safety was due to having rubber tires between the metal of the car and the ground, thus having no path for the lightning to pass through?

#2356 of 2363 Re: EMF [stevedebi] by wwest

Jan 16, 2009 (7:59 pm)

Replying to: stevedebi (Jan 15, 2009 2:28 pm)
You think lightning that has just jumped across a cloud to ground (or VV) 5000 ft gap will see any problem with the wheel to ground gap....??
 
The car's metal roof and "shell" is a much better conductor than is your body.....
 
And a farraday shield is used to block, "divert", or suppress electromagnetic waves and maybe some level of electrostatic coupling. No affect on lightning one way or another insofar as I know.

#2357 of 2363 Re: EMF [wwest] by stevedebi

Jan 21, 2009 (4:38 pm)

Replying to: wwest (Jan 16, 2009 7:59 pm)
"You think lightning that has just jumped across a cloud to ground (or VV) 5000 ft gap will see any problem with the wheel to ground gap....??
  
The car's metal roof and "shell" is a much better conductor than is your body.....
  
And a farraday shield is used to block, "divert", or suppress electromagnetic waves and maybe some level of electrostatic coupling. No affect on lightning one way or another insofar as I know. "
 
Lightning will probably follow a different course to ground if offered one that goes to the ground (like a tree) as opposed to one that is insulated by rubber.
 
I didn't make the claims about a farraday shield, that was a previous post.

#2358 of 2363 Dangers of EMF by MB_in_MN

Jan 23, 2009 (2:54 pm)

We looked into this issue two years ago when the utility company was relocating the poles closer to the house. It is true that the correlation with cancer is weak, if it exists at all. That does not mean it won't or will happen; it only means that there are probably so many other variables that contribute that EMF is the least of our worries. Your chances of being killed in a car accident while worrying about EMF exposure are probably much greater. And don't forget about what you eat and exposure to a multitude of natural and synthetic carcinogens through various sources. And that gasoline that you put in the tank? Chock full of known or suspected carcinogens.
 
The EMF link appears to be related to long-term continuous exposure (bedrooms near power lines). Unless you spend all day in your car, it would be hard to duplicate.
 
And on the question of shielding. are the cables from the battery located outside the cabin or inside? If outside, the body will provide all the shielding that you need.

#2359 of 2363 Faraday Shield by pat85

Feb 09, 2009 (1:45 pm)

Lightning has enough voltage to jump from the car body to the ground over wet tires which may be somewhat conductive.
The metal of the car body will conduct the electricity on the outside or the metal car, not allowing it inside. That is how a Farraday shield works.
 It does not matter where the battery cables are inside the car. The current flows from positive and returns to the negative. It has equal and oppossite current.
 
 A for power lines near your house, you are not in a Farraday shield unless you live in a metal building, such as a quanset hut.
 Tall buildings with steel girders are also safe in lightning storms, because they are a Farraday shield

#2360 of 2363 Re: I think that answer is as yet not available. [midnightcowboy] by wwest

Apr 24, 2012 (4:17 pm)

Replying to: midnightcowboy (Sep 19, 2006 9:56 am)
The only possible ill effects might be mutant DNA within the next hundred years or so.

#2361 of 2363 2013 RX 450 by fawltytowers44

May 10, 2012 (4:02 pm)

Does anyone have any news on when the 2013 450 will be released. Also; what changes, if any - like a driver seat that is designed for men to sit in, not just women; there is no thigh support to speak of and forget about lateral support. Does anyone here have the thigh extender option on their RX?

#2363 of 2363 From a 2012 Acura MDX to 2013 Lexus RX 450h by nerdoe

Mar 24, 2013 (1:44 am)

Need some advice/opinion on this. I currently own an 2012 Acura MDX fully loaded and have had it for about a year. Was looking at trading it in and getting a 2013 Lexus RX 450h. Reason being is because over the year that I have owned the vehicle a lot of miles have been put on it. My wife does a lot of driving (it being our only vehicle) taking our son places and running her own errands.
 
While I love the MDX I was thinking that maybe it would be better in the long run to trade it in for the Lexus. Besides the obvious boost in mpg wanted to get an opinion from people on if this would be a good idea as well as people who own a Lexus 450h and their experience with the car. The car would mostly be used my wife who would be driving it in most suburban areas as well as city. We live in the San Francisco Bay Area and do most of the driving in that area.
 
I've read that people haven't been getting the estimated MPG that Lexus says that you should be getting and wanted to get know if that is a universal thing. Hope that this makes sense and look forward to hearing the responses. Thanks for reading.

Messages Page 237 of 237

To POST a message, please Sign In.

Advertisement

Browse by Category

Browse by Vehicle
   View All Vehicles

Browse by Board
Browse by Topic
View All Topics

Edmunds Community

Advertisement