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| London Transport (uk.transport.london) Discussion of all forms of transport in London. |
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#9
October 10th 10, 10:38 AM
posted to uk.transport.london,uk.railway
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Could isolation transformers prevent electrocution on LU tracks?
On Oct 10, 11:18*am, The Gardener wrote:
On Sep 22, 12:41*pm, Roy Badami wrote: I thought moderntrackcircuits transmit a digital code so as to completely eliminate the risk of traction systems generating the appropriate frequency? * * *-roy You're thinking of the HVI (High Voltage Impulse) type. These are used where there is a risk of low wheel-rail adhesion causing the train to "disappear" from the system. TI types are generally more common. HVI track circuits are hardly modern though. I suspect he's thinking of something like the FS3000 track circuit from Invensys: http://www.invensysrail.com/download...4nZFuk9QJL.pdf |
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