This standard specifies general rules and safety requirements for hydraulic fluid power systems and components used on machinery as defined by GB/T 15706-2012, 3.1. It deals with all significant hazards associated with hydraulic fluid power systems and specifies the principles to apply in order to avoid those hazards when the systems are put to their intended use.
Note 1: See Clause 4 and Annex A for the content related to significant hazards.
The significant hazard noise is incompletely dealt with in this standard.
Note 2: Noise emission depends especially on the installation of hydraulic components or systems into machinery.
This standard applies to the design, construction, installation and maintenance of hydraulic systems and their components, also taking into account the following aspects:
a) assembly;
b) installation;
c) adjustment;
d) operation;
e) maintenance and cleaning;
f) reliability;
g) energy efficiency;
h) environment.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 786.1 Fluid Power Systems and Components - Graphic Symbols and Circuit Diagrams - Part 1: Graphic Symbols for Conventional Use and Data-processing Applications(GB/T 786.1-2009, ISO 1219-1: 2006, IDT)
GB/T 2878.1 Connections for Hydraulic Fluid Power - Ports and Stud Ends with Metric Threads and O-ring Sealing - Part 1: Ports(GB/T 2878.1-2011, ISO 6149-1: 2006, IDT)
GB/T 2878.2 Connections for Hydraulic Fluid Power - Ports and Stud Ends with Metric Threads and O-ring Sealing - Part 2: Heavy-duty Stud Ends (S Series)GB/T 2878.2-2011, ISO 6149-2: 2006, MOD)
GB/T 14039 Hydraulic Fluid Power - Fluids - Method for Coding the Level of Contamination by Solid Particles(GB/T 14039-2002, ISO 4406: 1999, MOD)
GB/T 14048.14 Low-voltage Switchgear and Controlgear - Part 5-5: Control Circuit Devices and Switching Elements - Electrical Emergency Stop Device with Mechanical Latching Function(GB/T 14048.14-2006, IEC 60947-5-5: 1997, IDT)
GB/T 15706-2012 Safety of Machinery - General Principles for Design - Risk Assessment and Risk Reduction(ISO 12100: 2010, IDT)
GB 16754 Safety of Machinery - Emergency Stop - Principles for Design (GB 16754-2008, ISO 13850: 2006, IDT)
GB/T 17446 Fluid Power Systems and Components - Vocabulary(GB/T 17446-2012, ISO 5598: 2008, IDT)
GB/T 17489 Hydraulic Fluid Power - Particulate Contamination Analysis - Extraction of Fluid Samples from Lines of an Operation System(GB/T 17489-1998, idt ISO 4021: 1992)
GB/T 19671 Safety of Machinery - Two-Hand Control Devices - Functional Aspects and Design Principles(GB/T 19671-2005, ISO 13851: 2002, MOD)
GB/T 25133 Hydraulic Fluid Power Systems - Methods of Cleaning Lines by Flushing(GB/T 25133-2010, ISO 23309: 2007, IDT)
