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NEN EN 1804-3 : 2006 + A1 2010

Current

Current

The latest, up-to-date edition.

MACHINES FOR UNDERGROUND MINES - SAFETY REQUIREMENTS FOR HYDRAULIC POWERED ROOF SUPPORTS - PART 3: HYDRAULIC CONTROL SYSTEMS

Published date

12-01-2013

Foreword
Introduction
2 Normative references
3 Terms and definitions
4 List of hazards
5 Safety requirements
  5.1 General requirements
      5.1.1 General
      5.1.2 Hazard areas
      5.1.3 Arrangement of the control devices
      5.1.4 Dead man's control
      5.1.5 Automatic hydraulic control system
      5.1.6 Automatic guaranteed setting control
      5.1.7 Shut-off devices
      5.1.8 Pressure indicator
      5.1.9 Pipe and hose assemblies
      5.1.10 Hydraulic fluids
      5.1.11 Lifting points
  5.2 Design requirements
      5.2.1 Protection against ejected fluids
      5.2.2 Roof contact advance
      5.2.3 Pressure limiting
      5.2.4 Interruption of the operating pressure
      5.2.5 Travel speeds Essential
      5.2.6 Actuating forces
      5.2.7 Resistance to back pressure
      5.2.8 Adjustable valves
  5.3 Requirements of type A valves
      5.3.1 General
      5.3.2 Leaktightness
      5.3.3 Yield pressure
      5.3.4 Opening pressure
      5.3.5 Closing pressure
      5.3.6 Pressure pulses
      5.3.7 Impact resistance
      5.3.8 Pressure flow behaviour
      5.3.9 Operating reliability
      5.3.10 Temperature effects
      5.3.11 Resistance to back pressure
  5.4 Requirements for type B and C valves
      5.4.1 General
      5.4.2 Leaktightness
      5.4.3 Resistance to pressure
      5.4.4 Switching behaviour
      5.4.5 Operating reliability
      5.4.6 Resistance to back pressure
  5.5 Requirements for type D valves
  5.6 Materials
      5.6.1 Metallic materials
      5.6.2 Light metal
      5.6.3 Other materials
      5.6.4 Seals
6 Verification of the safety requirements
  6.1 Type testing
  6.2 Additional tests
7 User Information
  7.1 General requirements
  7.2 Technical and application data
      7.2.1 Introduction
      7.2.2 General description
      7.2.3 Performance data
      7.2.4 Hydraulic data
      7.2.5 List of additional drawings and documents
  7.3 Handling, transport and storage
      7.3.1 Introduction
      7.3.2 Handling and transport
      7.3.3 Storage
  7.4 Installation and commissioning
      7.4.1 Installation
      7.4.2 Commissioning
  7.5 Operation
  7.6 Maintenance
      7.6.1 Introduction
      7.6.2 Technical description
      7.6.3 Maintenance instructions
      7.6.4 Fault diagnosis and correction
      7.6.5 Preventative maintenance schedules
  7.7 Parts identification lists
  7.8 Marking
  7.9 Residual risks
Annex A (normative) Tests for verification of the safety
         requirements
         A.1 Load tests
             A.1.1 General
             A.1.2 Lifting points
             A.1.3 Testing of type A valves
             A.1.4 Testing of type B valves
             A.1.5 Testing of type C valves
             A.1.6 Testing of type D valves
Annex B (normative) Deviations from EN 982:1996
         B.1 General
         B.2 5.1.7 (EN 982:1996)
         B.3 5.3.4.1.3 Contamination control (EN 982:1996)
         B.4 5.3.4.3.2 Failure (EN 982:1996)
         B.5 5.3.6 Sequence control (EN 982:1996)
         B.6 7.3.4.1 Non-electrical control mechanisms
                     (EN 982:1996)
Annex ZA (informative) Relationship between this European
         Standard and the Essential Requirements of the EU
         Machinery Directive 98/37/EC
Bibliography

Defines the safety requirements for hydraulic control devices, including hydraulic valves and their control elements, valve combinations, control systems, pipes and hose assemblies, fittings, shut-off devices, measuring devices, filters, built-in pressure limiting and check valves in legs and rams and water spraying and dust suppression valves when used as specified by the manufacturer or his authorized representative.

DevelopmentNote
2006 Edition Re-Issued in February 2010 & incorporates AMD 1 2010. (02/2010)
DocumentType
Standard
PublisherName
Netherlands Standards
Status
Current
SupersededBy

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