Source: https://standards.globalspec.com/standards/detail?docId=1244487
Timestamp: 2020-05-30 13:02:06
Document Index: 605924596

Matched Legal Cases: ['art 2', 'art 3', 'art 1', 'art 3', 'art 1', 'art 2', 'art 3']

CEN - EN 1804-2 - Machines for underground mines - Safety requirements for hydraulic powered roof supports - Part 2: Power set legs and rams | Engineering360
CEN - EN 1804-2
This standard specifies the safety requirements for legs and rams when used as specified by the manufacturer or his authorised representative. Examples covered by the standard include legs, support rams and rams with their mechanical extensions, internal valves and safety devices, seals, hydraulic connections (up to the first hose or Type B valve, see Part 3) and their 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 °C to 60 °C.
This standard identifies and takes account of:
- Possible hazards which may be caused by the 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 for the 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 on the market for the first time and which are manufactured after the date on which this standard was published.
This European standard does not establish the additional requirements for:
- Specially corrosive environments;
- Hazards occurring during construction, transportation, decommissioning;
This document stipulates the safety requirements for use of legs and rams as intended by the manufacturer or the manufacturer's authorized representative. These include legs, support rams and rams,...
EN 1804-2
This standard specifies the safety requirements for legs and rams when used as specified by the manufacturer or his authorised representative. Examples covered by the standard include legs, support...
EN 1804-1 - Machines for underground mines - Safety requirements for hydraulic powered roof supports - Part 1: Support units and general requirements
This standard specifies the safety requirements for support units when used as specified by the manufacturer or his authorised representative. Examples of support units are frame supports, chock...
EN 1804-3 - Machines for underground mines - Safety requirements for hydraulic powered roof supports - Part 3: Hydraulic control systems
This document specifies the safety requirements for hydraulic control devices, including hydraulic valves and their control elements, valve combinations, control systems, pipes and hose assemblies,...
EN 288-1 - Specification and Approval of Welding Procedures for Metallic Materials - Part 1: General Rules for Fusion Welding
EN 288-2 - Specification and Approval of Welding Procedures for Metallic Materials - Part 2: Welding Procedure Specification for Arc Welding
EN 288-3 - Specification and Approval of Welding Procedures for Metallic Materials - Part 3: Welding Procedure Tests for the Arc Welding of Steels
This standard specifies how a welding procedure specification is approved by welding procedure tests. It defines the conditions for the execution of welding procedure approval tests and the limits of...