[PRCo] Re: PRCo__Interurbans

[Boris Cefer]

Each of us is an original sample in question of comfort. But,......
An example. The Tatra T3 cars (exactly T3 SU) with totally enclosed motorman
cab delivered to many Russian countries have 6 kW cab's heater with blower
to provide adequate efficiency. At temperatures around 15 F the motorman
does not need to sport any heavy coat, even he is sitting for about 9 hours
and has only very low exercise behind the controls. Now, compare the area of
the cab with the rest of the car's interior. And remember the people usually
are well dressed under such conditions.
Most T3s in our city have 6.6 kW interior heaters only, which provides
capacity enough to defrost the car under similar conditions and the interior
is quite acceptable.
Another aspect is that the difference between the exterior and the interior
temperatures should not be too big from health reasons.

B

----- Original Message -----
From: "Fred Schneider" <fschnei at supernet.com>
To: <pittsburgh-railways at dementia.org>
Sent: Saturday, October 16, 2004 4:33 PM
Subject: [PRCo] Re: PRCo__Interurbans



> Interesting.   20 kw versus 10 kw.  But my background is insufficient to
> tell me what this means in terms of comfort.  But it does say that
> someone thought about the problem up front ... PRC's engineering staff
> was not totally oblivious to the different demands of city and
> interurban service.