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posted: 23 Apr 2008 03:42 from: Martin Wynne
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Two pictures of V-crossing details, kindly supplied by Mick Nicholson. A private siding connection at Melton: private_siding_melton.jpg In the yard at Botanic Gardens: botanic_yard.jpg Martin. |
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posted: 26 Feb 2009 16:19 from: richard_t
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Hello, Looking at those two switches I notice that top one has the rails "bonded" through the fishplate (pretty sure that's not the correct term). I.e. the two pairs of wires that span the fishplate. But the bottom doesn't. I guess that the bottom S&C isn't within a track circuited area? I had a look today as we plodded out of both Euston and Paddington today, but out of all of the fishplates I noticed I only saw one that was bonded in this way. (Ignoring the insulated ones obv.) Has this practice gone out of favour? (perhaps problems with tamping machines catching them?) Finally, are the wires attached/bolted to the rail, or are passed through holes in the rail and then attached/bolted?. Is there any reason for what side of the rail they are one - as the ones in the first photo are on inside. Does anyone have any close up's that they would like to share? Many thanks |
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posted: 26 Feb 2009 16:40 from: Martin Wynne
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Hi Richard, On BH they are normally on the inside so not damaged by the hammer when tightening or replacing keys on the outside. The usual practice is to fit them through small holes in the rail and then weld. You can often spot the ends of the wires protruding on the other side. The lower picture is in a yard, so not track-circuited. Generally only running lines are track-circuited. In the upper picture notice the fishplated joint to FB, which looks to be insulated. Here's a welded BH/FB joint instead (picture from Rodney Hills -- thanks Rodney): FBtoBHjoint.jpg regards, Martin. |
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posted: 27 Feb 2009 10:20 from: lippydavies click the date to link to this post click member name to view archived images |
Here are some Pics I took for DEMU members asking about V-crossings DSCF5149.jpg DSCF5168.jpg |
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posted: 27 Feb 2009 10:23 from: lippydavies click the date to link to this post click member name to view archived images |
Another view DSCF5150-1.jpg |
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