wrote in message ...
In article ,
(Cast_Iron) wrote:

wrote:
In article ,
(Clive D. W. Feather) wrote:


Because the car is motoring at that point, it is drawing several
hundred amps.

In reality, several thousand. 59 stock and other trains prior to the
present
generation drew about 3000 amps when pulling away. I would hazard a
guess
that the newer trains draw somewhat more, although being "more
efficient" I
could be wrong..



I seem to remember the 1959 stock motor cars were protected with 600A (or
possibly 800A) ribbon fuses. I'd have to dig the diagrams out to check. I
can't remember with the 85 stock, I'd have to dig around for the relevant
manuals.

Roger

Wow, this stuff is amazing!

I thought it was just debris on the rail, but this is a whole new side
of the Underground that I never knew about.

Are there any websites with diagrams of how the power systems on the
various rolling stocks are constructed? Tubeprune has an excelent
section, but it's very general and doesn't give any details about the
rolling stock.

Brad

TheOneKEA wrote:
wrote in message
...
In article ,
(Cast_Iron) wrote:

wrote:
In article ,
(Clive D. W. Feather) wrote:


Because the car is motoring at that point, it is drawing several
hundred amps.

In reality, several thousand. 59 stock and other trains prior to the
present
generation drew about 3000 amps when pulling away. I would hazard a
guess
that the newer trains draw somewhat more, although being "more
efficient" I
could be wrong..



I seem to remember the 1959 stock motor cars were protected with
600A (or possibly 800A) ribbon fuses. I'd have to dig the diagrams
out to check. I
can't remember with the 85 stock, I'd have to dig around for the
relevant manuals.

Roger

Wow, this stuff is amazing!

I thought it was just debris on the rail, but this is a whole new side
of the Underground that I never knew about.

Are there any websites with diagrams of how the power systems on the
various rolling stocks are constructed? Tubeprune has an excelent
section, but it's very general and doesn't give any details about the
rolling stock.


Try here, if you haven't already and follow the many links
http://www.trainweb.org/tubeprune/Rolling%20Stock.htm

This is a scanned copy of a leaflet on 1959 stock given to traincrew
http://www.trainweb.org/ukrailways//...let/index.html

"dave F" wrote in message ...

I used to travel on the Northern line for many years ago and that sort of
thing occurred almost every 3 months!

One occasion I had to knock on the drivers door to tell him the train was on
fire and he replied "Bloody hell!". I can laugh about it now but at the time
I was sharing the carriage with a mother who had a baby in a pram and when
you actually see a flame its not at all nice.

You have to wonder what would (does?) happen if some of the newspaper & tissues
etc that people drop around the system were to get lodged in some hot traction
equipment. I imagine this could be quite likely to happen in a tunnel section.

B2003

Boltar schrieb:
You have to wonder what would (does?) happen if some of the newspaper & tissues
etc that people drop around the system were to get lodged in some hot traction
equipment. I imagine this could be quite likely to happen in a tunnel section.
Something similar happened on the Hamburg S-Bahn system last autumn,
debris left in tunnels caught fire. The result was a ten-day block of
the relevant tunnel, 3 stations and approx. 4 km of tunnel where every
surface was covered with corrosive residues making it necessary to clean
the entire tunnel, a burnt-out power substation, destroyed signalling,
power, phone and data cables and a half-frequency train service for the
following 6 weeks.

Gunnar Thöle wrote in message ...
Boltar schrieb:
You have to wonder what would (does?) happen if some of the newspaper & tissues
etc that people drop around the system were to get lodged in some hot traction
equipment. I imagine this could be quite likely to happen in a tunnel section.
Something similar happened on the Hamburg S-Bahn system last autumn,
debris left in tunnels caught fire. The result was a ten-day block of
the relevant tunnel, 3 stations and approx. 4 km of tunnel where every
surface was covered with corrosive residues making it necessary to clean
the entire tunnel, a burnt-out power substation, destroyed signalling,
power, phone and data cables and a half-frequency train service for the
following 6 weeks.

GASP! That's pretty large-scale!

If that happened on TfL two years ago we'd STILL be waiting for
resumption of services...although I thought the cleaning ladies who
travel through the LUL network at night removed debris anyway, so it's
not likely to happen, correct?

Brad

"TheOneKEA" wrote in message
om...
Gunnar Thöle wrote in message
...
Boltar schrieb:
You have to wonder what would (does?) happen if some of the newspaper
& tissues
etc that people drop around the system were to get lodged in some hot
traction
equipment. I imagine this could be quite likely to happen in a tunnel
section.
Something similar happened on the Hamburg S-Bahn system last autumn,
debris left in tunnels caught fire. The result was a ten-day block of
the relevant tunnel, 3 stations and approx. 4 km of tunnel where every
surface was covered with corrosive residues making it necessary to clean
the entire tunnel, a burnt-out power substation, destroyed signalling,
power, phone and data cables and a half-frequency train service for the
following 6 weeks.

GASP! That's pretty large-scale!

If that happened on TfL two years ago we'd STILL be waiting for
resumption of services...although I thought the cleaning ladies who
travel through the LUL network at night removed debris anyway, so it's
not likely to happen, correct?

Errrr, we got rid of the "fluffers" donkey's years ago, replaced 'em with a
giant track-borne hoover. Which I belive broke down about 2 years ago, ain't
been fixed yet. Languishing in NFDT last time I looked...
--
Cheers, Steve.
If The Good Lord had meant for us to be fiscally prudent, He would not have
given us the platinum credit card...
Change colour to PC Plod's lights to reply.

In message ,
writes
There are places on the negative rail where there are two patches,
which correspond to the spacing of the two negative shoes on a car -
this would probably be around 30 feet. When examined close up, the
patches show that they are areas where extreme arcing has been taking
place. The patches are probably around 2 feet long. This generally only
seems to occur on the negative rail and only seems to have occurred
since the introduction of the 95 stock. They do not actually have to
line up with the normal stopping point of a car.

Not sure this is a uniquely 95 phenomena. We have a few of these around
with the 73TS too.
--
Steve Fitzgerald has now left the building.
You will find him in London's Docklands, E16, UK
(please use the reply to address for email)

In message , Steve
Dulieu writes

If that happened on TfL two years ago we'd STILL be waiting for
resumption of services...although I thought the cleaning ladies who
travel through the LUL network at night removed debris anyway, so it's
not likely to happen, correct?

Errrr, we got rid of the "fluffers" donkey's years ago, replaced 'em with a
giant track-borne hoover. Which I belive broke down about 2 years ago, ain't
been fixed yet. Languishing in NFDT last time I looked...

I saw it moving along the Rayners branch a few weeks ago. I believe Mr
Dyson has contributed a few bits and it's been mended.
--
Steve Fitzgerald has now left the building.
You will find him in London's Docklands, E16, UK
(please use the reply to address for email)

Boltar wrote in message
om...
"dave F" wrote in message
...

I used to travel on the Northern line for many years ago and that sort
of
thing occurred almost every 3 months!

One occasion I had to knock on the drivers door to tell him the train
was on
fire and he replied "Bloody hell!". I can laugh about it now but at the
time
I was sharing the carriage with a mother who had a baby in a pram and
when
you actually see a flame its not at all nice.

You have to wonder what would (does?) happen if some of the newspaper &
tissues
etc that people drop around the system were to get lodged in some hot
traction
equipment. I imagine this could be quite likely to happen in a tunnel
section.

B2003

Not only that hair and skin! They usually send a squad down each tunnel at
night to basically hand pick all of the rubbish that seems to build up in
the tunnels.

daveF