EN 1804-2:2001 Machines for underground mines - Safety requirements for hydraulic powered roof supports - Part 2: Power set legs and rams (Incorporates Amendment A1: 2010)
This standard specifies the safety requirements for legs and rams when used as specified byThe manufacturer or his authorised representative. Examples covered byThe standard include legs, support rams and rams withTheir mechanical extensions, internal valves and safety devices, seals, hydraulic connections (up toThe first hose or Type B valve, see Part 3) andTheir lifting points but excluding protective pipes and gaiters, external valves and hydraulic and electrohydraulic control systems. NOTE Some components are dealt with in other parts of this standard.This standard applies to legs, support rams and rams used at ambient temperatures from-10 ℃ to 60 ℃.This standard identifies and takes account of:Possible hazards which may be caused byThe operation of legs, support rams and rams; Areas and operating conditions which may create such hazards; Hazardous situations which may cause injury or may be damaging to health.This standard describes methods forThe reduction of these hazards. A list of hazards covered appears in clause 4.This standard is applicable to all legs, support rams and rams placed onThe market forThe first time and which are manufactured afterThe date on whichThis standard was published.This European Standard does not establishThe additional requirements for:Specially corrosive environments; Hazards occurring during construction, transportation, decommissioning; Earthquake.
EN 1804-2:2001 history
2020EN 1804-2:2020 Machines for underground mines - Safety requirements for hydraulic powered roof supports - Part 2: Power set legs and rams
2010EN 1804-2:2001+A1:2010 Machines for underground mines - Safety requirements for hydraulic powered roof supports - Part 2: Power set legs and rams
2001EN 1804-2:2001 Machines for underground mines - Safety requirements for hydraulic powered roof supports - Part 2: Power set legs and rams (Incorporates Amendment A1: 2010)