|Number of pages||43|
NEN-EN 12111 specifies all significant hazards, hazardous situations and events relevant to road headers and continuous miners as defined in Clause 3, when they are used as intended and under the conditions foreseen by the manufacturer. Where mentioned, this standard applies also to cutter head attachments and impact hammers mounted on excavators and in tunnel shields. This standard specifies the appropriate technical measures to eliminate or reduce risks arising from the significant hazards. Within the conditions stated by the manufacturer, overturning of the road header or continuous miner is not a significant hazard. Noise is not a significant hazard for cutter head attachments. Excavators and tunnel shields mentioned above are out with the scope of this standard and are covered by EN 474+A1 and EN 12336+A1 respectively. This European Standard also covers reasonably foreseeable misuse of such machinery in that compliance with the requirements of Clause 5 mitigates the risk arising from such misuse. The following items and applications are not covered by this European Standard: - the supply of electricity up to the main switch box; - use of the machine in potentially explosive atmospheres; - use of the machine under hyperbaric conditions - loading and transport equipment which is not an integral part of the machine; This European Standard covers monitoring for hazardous atmospheres. This European Standard is not applicable to machines manufactured before the date of publication of this European Standard by CEN.
|Dutch title||Tunnelbouwmachines - Continu-graafmachines - Veiligheidseisen|
|English title||Tunnelling machines - Road headers and continuous miners - Safety requirements|