Definition: Insulated wagon

Transport

Covered wagon the body of which is built with insulating walls, doors, floor and roof, to limit heat exchange between the interior of the wagon and the outside so that the overall coefficient of heat transfer (K coefficient), allows the equipment to be assigned to one or other of the following two categories:

- IN = Normally insulated: characterized b - y a K coefficient equal to or less than 0.7 W/m 2°C
- IR = Heavily insulated: characterized by a K coefficient equal to or less than 0.4 W/m 2°C

(Fourth version of the Transport Glossary).



Covered wagon of which the body is built with insulating walls, doors, floor and roof, by which the heat exchanges between the inside and outside of the body can be so limited that the overall coefficient of heat transfer (K coefficient), is such that the equipment is assignable to one or other of the following two categories:

IN = Normally insulated equipment - characterised by a K coefficient equal to or less than 0.7 W/m² °C
IR = Heavily insulated equipment - characterised by a K coefficient equal to or less than 0.4 W/m² °C

(Third version of the Transport Glossary).
Source:
International Transport Forum, Eurostat, United Nations Economic Commission for Europe (UNECE), "Illustrated Glossary for Transport Statistics", 4th Edition, Luxembourg 2009
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