seccionamiento de lámina de aire
English translation: airbreak/airgap (sectioning)
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| 14:14 Sep 8, 2002 |
| Spanish to English translations [PRO] Tech/Engineering - Transport / Transportation / Shipping / railway | |||||||
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|  Selected response from: tazdog (X) Spain Local time: 17:39 | ||||||
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| 5 | airbreak/airgap (sectioning) |
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| 5 | air-gap overlap span |
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Answers
40 mins confidence: 
airbreak/airgap (sectioning) Explanation: Hi again, I ran into the same term and same problem, but at least the EuroDicAutom entry gave me a clue. Here are some refs. Airbreak spans as required by site-specific conditions Sectioning at substations shall be performed by means of insulated overlaps, insulated midpoints, airbreaks or carrier wires. Section insulators shall not be used in mainline tracks or crossovers used for normal train operations. Sectioning in crossovers and turnouts shall be performed by insulated knuckles, airgaps or airbreaks. The above page (1st link below) was invaluable to me in translating a huge text on the overhead contact system. Other refs.: In Sydney (and elsewhere) I thought the "air gap" was the space between the two sets of overhead at an overhead anchorage/transition point on main lines, that is, the span(s) where the finishing and the commencing overhead wires run parallel and the pantograph will have simultaneous contact at some point. Both wires are mostly electrically connected by additional conductors but where the overhead is to be electrically sectioned (sub stations, section huts, certain outer-suburban crossovers) the two sets of wire are electrically isolated (unless a pantograph is passing beneath) providing a gap of air between the two sets of overhead. http://www.railpage.org.au/ausrail/01jan/msg01786.html Surge arresters, rod gaps and tanks of equipment associated with air break switches such as OH line reclosers and sectionalisers are earthed by a second installation.http://www.energy.com.au/ea/earetail.nsf/AttachmentsByTitle/...$FILE/ns0116.pdf As you can see, the terms exist as two-word variations as well ("air break"). Hope it helps. Reference: http://www.rtd-denver.com/LightRail/RTD_LRT_Design_Mannual_2... Reference: http://www.railpage.org.au/ausrail/01jan/msg01786.html |
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1 hr confidence:
air-gap overlap span Explanation: source : RaiLex,UIC |
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