stanley T
Member
- Joined
- 28 Jun 2011
- Messages
- 146
Old Timer (and others),
It was you who said it was "crappily built". It was not. It was constructed to the then current Standards
OK, accept that, and apologies for any unintentional offence caused. However there is a perception that the ECML catenary has undue problems, and if perceptions deviate from reality, the perceptions need to be addressed - preferably with some comparative data. Electric railways are much more reliable than diesel ones (the unsuitability of marine diesel engines for rail use should be the subject of another thread); but,although rare, dewirings tend to cause massive dislocation.
The equipment on the CTRL is "constant height" equipment, e.g. every Structure is the same, and as such a monkey with basic training could build it. The UK situation is far more complex because it does not benefit from a constant height clearance and thus the whole system needs to be properly engineered.
Well, that must only apply to high speed lines in general, not just HS1, yet trains are run at 200kms/h on classic lines in France, Italy and Germany, both AC and DC, as well as the WCML now that Pendolinos are around; all of the latter presumably have variable height issues. Is there any comparative data available for catenary reliability for these operations and the ECML? (for the WCML, especially north of Crewe, which has not been rewired).
It was you who said it was "crappily built". It was not. It was constructed to the then current Standards
OK, accept that, and apologies for any unintentional offence caused. However there is a perception that the ECML catenary has undue problems, and if perceptions deviate from reality, the perceptions need to be addressed - preferably with some comparative data. Electric railways are much more reliable than diesel ones (the unsuitability of marine diesel engines for rail use should be the subject of another thread); but,although rare, dewirings tend to cause massive dislocation.
The equipment on the CTRL is "constant height" equipment, e.g. every Structure is the same, and as such a monkey with basic training could build it. The UK situation is far more complex because it does not benefit from a constant height clearance and thus the whole system needs to be properly engineered.
Well, that must only apply to high speed lines in general, not just HS1, yet trains are run at 200kms/h on classic lines in France, Italy and Germany, both AC and DC, as well as the WCML now that Pendolinos are around; all of the latter presumably have variable height issues. Is there any comparative data available for catenary reliability for these operations and the ECML? (for the WCML, especially north of Crewe, which has not been rewired).
