Re: 240 volts on tangaras and the 4d set

[Eben Levy <elevy@connect.com.au>]

Last trip to syd and return, I took my laptop with me.

Way back form syd I made sure I was booked in car A and happily ran the laptop
for most of the journey of the shaver only outlet there.

Rod wrote:

> > > but the 4D has a pretty standard power point at the end of the top deck.
> > > Not sure about the voltage of it though, and how successful it is to
> > > charge/burn/fry a laptop using it.
>
> You would want to be carefull what you plugged into any mobile power point.
> V/Line locomotives have standard 3 pin outlets fitted in the cabs, but they
> provide only battery power which is about 65 volts DC. Fitters used to use
> normal looking tools, that were built or rebuilt to use that voltage.
> Hitachi sparks have 240 volt outlets located in the overhead locker at one
> end of the car, but they are only safe for motor operated devices such as
> Vacuum cleaners.
> Comenge Trains have similar outlets in the Drivers cabs, and we use them to
> run our trannies. I have heard of some being fried though.
> Sprinters have outlets at the Emergency tap, in each saloon. I cooked my
> mobile phone transformer the second time I used one. I now have a very
> simple device which tests for AC, and turns on between 220 and off if the
> voltage exceeds 250. We are experimenting with a voltage regulation circuit
> that  can regulate the voltage to 240, even though the supply is about 110,
> or more than 250. So far the device is not a convenient size or weight.
> Rod