Categoría -Essays

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Track gauge measuring ruler control device. IT03
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Fastener/sleeper electrical impedance test – IT01

Track gauge measuring ruler control device. IT03

Track gauge and cant measuring device are elements for in situ measurement that are moved from the laboratory to the construction site, often together with track tools, along steep roads and are used in conditions other than those of a laboratory. This means that the original certification of the device requires frequent monitoring to remain effective. Likewise, that certification in accredited laboratories can be somewhat difficult due to time, travel and the availability of institutions that carry out this work.

Fastener/sleeper electrical impedance test – IT01

The electrical resistance of the sleeper-fastening system in a wet Railway Track is a very important parameter to consider. This is because the rails are electric conductors in the circuit of signalling and traction and, an inappropriate electric resistance may be the cause of many trouble and malfunction. In this first part, it will be studied the origin of the requirement, the conditions in the track and the standard allowable. A second part will cover the test.

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