Reproduced with kind permission of
RTM
Testing of the
new Hitachi IEP stock is underway on
the Old Dalby test track in
Leicestershire, including under the
new Rigid Overhead Conductor Rail
System (ROCS)
The first of
the five-car pre-series Class 800s
arrived at Southampton Docks from
Japan on 12 March. Most of the
trains will be manufactured at
Hitachi’s new plant at Newton
Aycliffe near Darlington, starting
later this year. They are scheduled
to come into service on the Great
Western Main Line from 2017, and on
the East Coast a year later, with
the full fleet operational by 2020.
Testing will
shift to a section of the East Coast
Main Line once complete at Old Dalby.
The Stanton
Tunnel part of the Old Dalby test
track has recently been refurbished,
and uses Furrer+Frey’s high-speed
ROCS, which is based on a rigid bar
design, not the traditional
tensioned overhead line, meaning
there is a less likelihood of a de-wirement
or snapping of the contact line. It
is particularly suited to
installation in tunnels, and is
described by Furrer+Frey as “the
ultimate ‘fit and forget’ system”,
with no moving parts and low
maintenance requirements.
|
ROCS overhead equipment
inside Stanton Tunnel
RMT |
Network Rail
project manager Graham Denny said:
“Installation of conductor beam
through Stanton Tunnel has provided
Network Rail the opportunity to work
alongside leading industry partners
to trial high speed running on
ballasted track under the Rigid
Conductor Rail System, which is a
much more reliable overhead contact
system. This will build on previous
UK experience of conductor beams
which have only been used in low
speed tracks. In addition to gaining
valuable experience about
installation techniques including
automated drilling, it also provides
the opportunity for the new IEP
trains to be introduced to this
novel infrastructure.”