Extended application of results from fire resistance tests for service installations - Ducts Ingestion-build-156411 The scope of this part

The scope of this part of BS EN 50121-3-1:2006 ends at the interface of the rolling stock with its respective energy inputs and outputs

Product marking details are also given

their chemical composition and the temper designations used in this standard are in accordance with BS EN 573- 3 and BS EN 515 respectively

Category 1: General purpose fences up to 2

the usability characteristics of electrodes

Extended application of results from fire resistance tests for service installations - Ducts Ingestion-build-156411 The scope of this partWhat is this standard about? This European Standard identifies parameters that affect the fire resistance of ducts for ventilation purposes. It also identifies the factors that need to be considered when deciding whether, or by how much a parameter can be extended either positively or negatively when contemplating the fire resistance on an untested variation in the construction. This European Standard, where applicable, gives guidance on additional