SB/T 10345.2-2012 PDF English
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| SB/T 10345.2-2012 | English | 630 |
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Refrigerating systems and heat pumps. Safety and environmental requirements. Part 2: Design, construction, testing, marking and documentation
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| SB/T 10345.2-2001 | English | 759 |
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Refrigerating systems and heat pumps. Safety and environmental requirements. Part2: Design, constraction, testing, marking and documentation
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SB/T 10345.2-2012: Refrigerating systems and heat pumps. Safety and environmental requirements. Part 2: Design, construction, testing, marking and documentation
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/SBT10345.2-2012
SB
DOMESTIC TRADE INDUSTRY STANDARD
ICS 27.080; 27.200
J 73
Filing No.. 37192-2012
Replacing SB/T 10345.2-2001
Refrigerating systems and heat pumps -
Safety and environmental requirements - Part 2.
Design, construction, testing, marking and
documentation
Issued on. AUGUST 01, 2012
Implemented on. NOVEMBER 01, 2012
Issued by. Ministry of Commerce of PRC
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 6
3 Terms, definitions, naming, classification and abbreviations of refrigerants.. 6
4 Major hazards... 6
5 Safety requirements and measures... 7
6 Requirements for assembly... 13
Appendix A (Normative) Additional requirements for R717 refrigeration systems
and heat pumps... 50
Appendix B (Normative) Determination of assembly type... 52
Appendix C (Normative) Requirements for intrinsic safety test... 57
Appendix D (Informative) Installation examples of pressure relief devices in
refrigeration systems... 60
Appendix E (Informative) Checklist for device appearance inspection... 64
References... 66
1 Scope
This part applies to the design and manufacture of refrigeration systems
including piping, components, materials and auxiliary equipment directly
connected to the system; specifies the requirements for testing, operation,
marking and documentation of the refrigeration system. For heat transfer fluids
that are not gaseous under atmospheric pressure, the requirements for the heat
transfer fluid circuit do not belong to the scope of this part, but this part still
applies to any safety devices related to the refrigeration system. This part does
not apply to refrigeration systems using air or water as refrigerants, nor does it
include requirements for refrigeration equipment used in potentially explosive
atmospheres.
The auxiliary equipment of the refrigeration system includes.
- Fan and fan motor;
- Motor and transmission mechanism of open compressor.
This part specifies the requirements related to fixed and mobile refrigeration
systems (including heat pumps) of various sizes.
This part is not applicable to systems using refrigerants not listed in Appendix
D of Part One of this standard, as long as the safety groups of these refrigerants
have not been determined.
The basic safety requirements for refrigeration systems in Part 1 of this
standard are also applicable in this part.
Part 3 of this standard also applies to the basic requirements of the installation
site.
This part does not apply to refrigeration systems and heat pumps manufactured
before the date of publication of this standard.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) is applicable to this standard.
GB/T 18517 Terminology of refrigeration
ISO 12100 Mechanical safety - General rules of design - Risk assessment
and reduction
ISO 13849-1 Mechanical safety - Safety-related parts of control system -
Part 1.General principles for design
ISO 14040 Environmental management - Life cycle assessment - Principles
and framework
3 Terms, definitions, naming, classification and
abbreviations of refrigerants
3.1 Terms and definitions
The terms and definitions specified in Part 1 of this standard and GB/T 18517
apply to this part.
4 Major hazards
Major hazards include mechanical, electrical, thermal hazards, as well as power
supply failures, control loop failures, takeover errors, etc.
5 Safety requirements and measures
5.1 General safety and environmental requirements
5.1.1 Overview
Safety and environmental requirements are given in 5.2 and clause 6 of this
part.
5.2 Safety requirements for components and piping
5.2.1 General requirements
Components and piping shall comply with relevant standards.
5.2.2 Special requirements
5.3 Various components
5.3.1 Materials
5.3.1.3 Non-ferrous materials and their alloys (cast, forged, rolled, drawn)
The material of the components shall be suitable for the specified temperature
and pressure range; they can only be used with compatible refrigerants.
5.3.2 Test
5.3.2.1 Test
The following tests shall be carried out on all components.
6 Requirements for assembly
6.1 Overview
The design, construction, testing, installation, documentation and marking of
refrigeration system assemblies shall meet the requirements of this clause.
6.2 Design and construction
6.2.1 Overview
All components of the refrigerant circuit assembly shall meet the requirements
of clause 5.
6.2.2 Determination of the maximum allowable pressure
6.2.2.1 Maximum allowable pressure (PS)
The determination of the maximum allowable pressure shall consider the
following factors.
6.2.3.2.3.3 Flared joint
Flared joints can only be used for annealing tubes whose outer diameter does
not exceed 20 mm.
6.2.3.2.3.4 Threaded tapered tube
Threaded tapered pipes can only be used to connect control, safety and
indicating devices and components; they are limited to pipelines equal to or less
than DN40.To ensure tightness, tapered pipe fittings and sealing materials shall
pass the manufacturer's type test.
6.2.3.3.2 Special requirements for installation of equipment piping using
groups A2, A3, B2, or B3 refrigerant
The refrigeration system's piping parts that need to be brazed or welded on site
shall not be equipped with A2, A3, B2 or B3 groups of refrigerants during
transportation.
6.2.3.4 Piping connecting accessories and measuring devices
6.2.3.4.1 Overview
The pipes used to connect measurement, control and safety devices, including
flexible pipes, shall have sufficient strength to withstand the maximum allowable
pressure; their installation methods shall minimize vibration and corrosion.
6.2.3.4.2 Discharge pipeline
6.2.3.4.2.1 Overview
The cut-off device on the discharge pipeline shall not operate during the normal
operation of the system. Unauthorized personnel shall be prohibited from
operating the cut-off device.
SB/T 10345.2-2012
SB
DOMESTIC TRADE INDUSTRY STANDARD
ICS 27.080; 27.200
J 73
Filing No.. 37192-2012
Replacing SB/T 10345.2-2001
Refrigerating systems and heat pumps -
Safety and environmental requirements - Part 2.
Design, construction, testing, marking and
documentation
Issued on. AUGUST 01, 2012
Implemented on. NOVEMBER 01, 2012
Issued by. Ministry of Commerce of PRC
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 6
3 Terms, definitions, naming, classification and abbreviations of refrigerants.. 6
4 Major hazards... 6
5 Safety requirements and measures... 7
6 Requirements for assembly... 13
Appendix A (Normative) Additional requirements for R717 refrigeration systems
and heat pumps... 50
Appendix B (Normative) Determination of assembly type... 52
Appendix C (Normative) Requirements for intrinsic safety test... 57
Appendix D (Informative) Installation examples of pressure relief devices in
refrigeration systems... 60
Appendix E (Informative) Checklist for device appearance inspection... 64
References... 66
1 Scope
This part applies to the design and manufacture of refrigeration systems
including piping, components, materials and auxiliary equipment directly
connected to the system; specifies the requirements for testing, operation,
marking and documentation of the refrigeration system. For heat transfer fluids
that are not gaseous under atmospheric pressure, the requirements for the heat
transfer fluid circuit do not belong to the scope of this part, but this part still
applies to any safety devices related to the refrigeration system. This part does
not apply to refrigeration systems using air or water as refrigerants, nor does it
include requirements for refrigeration equipment used in potentially explosive
atmospheres.
The auxiliary equipment of the refrigeration system includes.
- Fan and fan motor;
- Motor and transmission mechanism of open compressor.
This part specifies the requirements related to fixed and mobile refrigeration
systems (including heat pumps) of various sizes.
This part is not applicable to systems using refrigerants not listed in Appendix
D of Part One of this standard, as long as the safety groups of these refrigerants
have not been determined.
The basic safety requirements for refrigeration systems in Part 1 of this
standard are also applicable in this part.
Part 3 of this standard also applies to the basic requirements of the installation
site.
This part does not apply to refrigeration systems and heat pumps manufactured
before the date of publication of this standard.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) is applicable to this standard.
GB/T 18517 Terminology of refrigeration
ISO 12100 Mechanical safety - General rules of design - Risk assessment
and reduction
ISO 13849-1 Mechanical safety - Safety-related parts of control system -
Part 1.General principles for design
ISO 14040 Environmental management - Life cycle assessment - Principles
and framework
3 Terms, definitions, naming, classification and
abbreviations of refrigerants
3.1 Terms and definitions
The terms and definitions specified in Part 1 of this standard and GB/T 18517
apply to this part.
4 Major hazards
Major hazards include mechanical, electrical, thermal hazards, as well as power
supply failures, control loop failures, takeover errors, etc.
5 Safety requirements and measures
5.1 General safety and environmental requirements
5.1.1 Overview
Safety and environmental requirements are given in 5.2 and clause 6 of this
part.
5.2 Safety requirements for components and piping
5.2.1 General requirements
Components and piping shall comply with relevant standards.
5.2.2 Special requirements
5.3 Various components
5.3.1 Materials
5.3.1.3 Non-ferrous materials and their alloys (cast, forged, rolled, drawn)
The material of the components shall be suitable for the specified temperature
and pressure range; they can only be used with compatible refrigerants.
5.3.2 Test
5.3.2.1 Test
The following tests shall be carried out on all components.
6 Requirements for assembly
6.1 Overview
The design, construction, testing, installation, documentation and marking of
refrigeration system assemblies shall meet the requirements of this clause.
6.2 Design and construction
6.2.1 Overview
All components of the refrigerant circuit assembly shall meet the requirements
of clause 5.
6.2.2 Determination of the maximum allowable pressure
6.2.2.1 Maximum allowable pressure (PS)
The determination of the maximum allowable pressure shall consider the
following factors.
6.2.3.2.3.3 Flared joint
Flared joints can only be used for annealing tubes whose outer diameter does
not exceed 20 mm.
6.2.3.2.3.4 Threaded tapered tube
Threaded tapered pipes can only be used to connect control, safety and
indicating devices and components; they are limited to pipelines equal to or less
than DN40.To ensure tightness, tapered pipe fittings and sealing materials shall
pass the manufacturer's type test.
6.2.3.3.2 Special requirements for installation of equipment piping using
groups A2, A3, B2, or B3 refrigerant
The refrigeration system's piping parts that need to be brazed or welded on site
shall not be equipped with A2, A3, B2 or B3 groups of refrigerants during
transportation.
6.2.3.4 Piping connecting accessories and measuring devices
6.2.3.4.1 Overview
The pipes used to connect measurement, control and safety devices, including
flexible pipes, shall have sufficient strength to withstand the maximum allowable
pressure; their installation methods shall minimize vibration and corrosion.
6.2.3.4.2 Discharge pipeline
6.2.3.4.2.1 Overview
The cut-off device on the discharge pipeline shall not operate during the normal
operation of the system. Unauthorized personnel shall be prohibited from
operating the cut-off device.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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