On Feb 15, 8:42 pm, Andy wrote:
I think that
the North London line is the route limited to 3 car 313s

Correct.

this was
electrified before the DC lines even existed (in 1916). The closure of
Broad Street and extension to North Woolwich was done on the cheap and
I think this was the part with supply problems.

I think there are also power limits on the DC between Camden Road and
Dalston, but could be wrong.

With the closure
beyond Stratford and the electrification of the new platforms there
with AC, I think that any restriction will disappear, as most of the
route will then be AC electrified.

Are they planning to make it all-AC between Camden and Dalston as part
of the remodelling? Would certainly make sense...

The DC Lines from Euston don't have
such the restriction, as they were a busier railway, designed to cope
with the Bakerloo stock all the way to Watford.

Yup.

--
John Band
john at johnband dot org
www.johnband.org

On Feb 17, 1:47*pm, John B wrote:
On Feb 15, 8:42 pm, Andy wrote:

I think that
the North London line is the route limited to 3 car 313s

Correct.

this was
electrified before the DC lines even existed (in 1916). The closure of
Broad Street and extension to North Woolwich was done on the cheap and
I think this was the part with supply problems.

I think there are also power limits on the DC between Camden Road and
Dalston, but could be wrong.


Yes, there could be too, I don't know if that section was re-equipped
when they extended electrification to North Woolwich.

With the closure
beyond Stratford and the electrification of the new platforms there
with AC, I think that any restriction will disappear, as most of the
route will then be AC electrified.

Are they planning to make it all-AC between Camden and Dalston as part
of the remodelling? Would certainly make sense...


I think that they have to, as the sections from Canonbury to east of
Caledonian Road and Barnsbury will only be two tracks with the
remodelling (of course the ELL extension part will be DC only on the
other two tracks). There will still need to be AC routes for the
freight traffic and to make the section from Dalston to Camden dual
electrification would seem a lot of work for little benefit.

The DC Lines from Euston don't have
such the restriction, as they were a busier railway, designed to cope
with the Bakerloo stock all the way to Watford.

Yup.

--
John Band
john at johnband dot orgwww.johnband.org