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IP68 and closed circuit cooling system, VE down from there ..... have I typed before? Anyway, must go .... I've a train to catch:lol:

But much more likely than winning the lottery. How about this: on the statistical evidence available, what is the likelihood of Eurostar/Eurotunnel efficiently recovering 5 failed sets from one tunnel? Lots of post-post-editing occurring, which will cause confusion, but there we are. --- old...

Aerials? You're confused. You're also confused about system strategy and engineering detail. --- old post above --- --- new post below --- Do you have a link to the proposed solution, I'd like to read it ..

Waiting for you to point out my errors, I'm always ready to learn ... you should try it sometime :wink:

... and quarantine the last set that ran through successfully. I assume that sets and tunnels are fitted with a comprehensive range of sensors and data loggers Any statistical evidence for this? Just wondering ... I concur :wink: I must ask on a different thread; how can a SPAD occur with...

Re: pans and VCBs; the detail is gibberish to me, but I think I understand the overall picture: it is possible for a fault with the traction system to disable the non-traction supply. If the traction supply is utilised to supply non-traction life safety services eg lighting, then there is an...

It's the starting point, the spec and the contract will not be flawless, and the result will almost invariably be negotiated, no-one wants a court case (except the lawyers of course). Several news reports state lack of lighting and ventilation. LU construction/maintenance specifications and...

If it's a failure of design eg insufficient protection, then who maintains it is irrelevant. If the system is maintained in compliance with the manufacturer's requirements then liability can still exist many years after installation for issues that may be maintenance related. A good, detailed...

Liability can extend far beyond any warranty period, potentially for the life of the equipment. But you knew that anyway ..... --- old post above --- --- new post below --- OK, for Eurostar read Eurotunnel, that's that fixed. All good questions, but mere detail in reality. All should be...

Cost and timescales.

That's very kind of you, thanks ..:wink:

If the standards/regs require a lower temp for longer duration then modify the model. Also ensure that the model includes big snow flakes, small snow flakes, very small snow flakes and very, very small snowflakes. AC loco = a machine, it's not as if we are dealing with steam you know :wink:

Nonsense. Initially, Eurostar can undertake a preliminary investigation of the issue, draft report to be available in 10 working days. to be followed by the full report in 90 working days, then: Require the design team to account for any failures in design (tunnel and sets) Require the...

Arrogance of those outside the industry? Can't possibly refer to me then, I've worked as a contractor on underground and overground for the last 30 years. Principles of design do not alter from sector to sector. If it might happen then design for it, if it won't happen then don't design for it...

BBC news at 0600 referred to the installation of "new technology", fusion power perhaps? Or tele-porting in some form? Nope, it's covers. If it's inconceivable that 5 trains could fail in the tunnel then why did it happen? IP68, closed circuit cooling system and value engineer down. I would...

At higher engine rpm, effectively yes, although pulsed (it's the current that's very different). The point being that if something simple like a fork truck can operate reliably over an anticipated temp gradient then so should a modern train. Of course, the train should have a higher level of...

LPG can be used in cold stores, three way cat required (heat gain into the cold store can be a problem though), HT voltage is typically 20kV, can be as high as 40kV. The point is, these things are designed to be used over demanding temp gradients, as should the E*. The operation of a...

So are we agreed that - unless there are doors are in operation - the temp/humidity change for the Chunnel is not "nearly instantaneous"? I estimate gradient distance of at least 500m. No HT on an LPG fork truck? Really? You need to research. Temp gradient for a cold store can be 41'C over 4m...

From the Flail The sea is leaking into the tunnel? If the problem is snow melting on the underside of the trains, run them through a steam cleaner before entering the tunnel. Did the tunnel management authorise a train to enter the tunnel when there was another train stopped ahead...

Near instantaneous? Are the tunnels fitted with doors that only open as a train approaches? I wasn't aware of that ..... There will be a measurable temp and humidity gradient, this will vary according to natural ventilation, forced ventilation and the pumping action of trains. Fork lift trucks...