This European Standard specifies the significant hazards, hazardous situations and events, common to self-propelled road-rail machines and attachments as defined in 3.5 and 3.6 of EN 15746-1:2010 and arising due to the adaptation for their use on rail intended for construction, maintenance inspection of the railway infrastructure, shunting and emergency rescue vehicles, when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer, see Clause 4. This European Standard deals with the common hazards during running, assembly and installation, commissioning, travelling on and off track, use including setting, programming, and process changeover, operation, cleaning, fault finding, maintenance and de-commissioning of the machines. NOTE 1 Specific measures for exceptional circumstances are not dealt with in this European Standard. They can be subject to negotiation between manufacturer and the machine operator. The common hazards dealt with include the general hazards presented by the machines, and also the hazards presented by the following specific machine functions: a) excavation; b) ballast tamping, ballast cleaning, ballast regulating, ballast consolidating; c) track renewal; d) rail grinding; e) craning; f) catenary renewal / maintenance; g) maintenance of the components of the infrastructure; h) inspection and measurement of the components of the infrastructure; i) tunnel inspection / ventilation; j) shunting; k) emergency rescue and recovery during commissioning, use, maintenance and servicing.It is assumed that a finished standard automotive chassis used as a host for a road-rail machine will offer an acceptable safety level for its designed functions before conversion. Unless explicitly stated otherwise in a particular clause this specific aspect is not dealt with in this European Standard. NOTE 2 A manufacturer should carry out an appropriate risk assessment for the complete machine. Irrespective of whether a harmonised standard exists for the machine in road configuration, this should identify any additional hazards arising from the particular application of the chassis and the protective measures required to adequately deal with them. This European Standard does not deal with: l) requirements with regard to the quality of work and the performance of the machine; m) machines that utilise the catenary for traction purposes; n) specific requirements established by a railway infrastructure manager;o) negotiations between the manufacturer and the machine operator for additional or alternative requirements; p) requirements for use and travel of the machine on public highway; q) hazards due to air pressure caused by the passing of high-speed trains at more than 190 km/h; r) requirements which could be necessary in case of use in extreme conditions, such as: 1) extreme ambient temperatures (tropical or polar); 2) highly corrosive or contaminating environment, e.g. due to the presence of chemicals; 3) potentially explosive atmospheres. Other special vehicles used on railway tracks are dealt with in other European Standards, see Annex D. This European Standard applies to all machines that are ordered one year after the publication date by CEN of this standard.
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