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23/30406664 DC BS EN IEC 61010-2-012. Safety requirements for electrical equipment for measurement; control; and laboratory use - Part 2-012. Particular requirements for climatic and environmental testing and other temperature conditioning equipment, 2023
- 66_790e_CD.pdf [Go to Page]
- CONTENTS
- FOREWORD
- INTRODUCTION
- 1. Scope and object [Go to Page]
- 1.1.1 Equipment included in scope
- 1.1.2 Equipment excluded from scope
- 1.2 Object
- 1.2.1 Aspects included in scope
- 2. Normative references
- 3. Terms and definitions [Go to Page]
- 3.1 Equipment and states of equipment
- 3.2 Parts and accessories
- 3.5 Safety terms
- 4. Tests [Go to Page]
- 4.3 Reference test conditions
- 4.3.1 Environmental conditions
- 4.3.2 State of equipment
- 4.3.2.1 General
- 4.3.2.101 Heat load
- 4.3.2.102 Humidity and steam
- 4.3.2.103 Lamp and lamp systems
- 4.3.2.104 Mechanical movement
- 4.3.2.105 Spray generating systems
- 4.3.2.106 Ventilators
- 4.3.2.107 Pressures other than those of refrigerant
- 4.3.2.108 Refrigerant pressure
- 4.3.2.109 Exhaust and condensate
- 4.3.2.110 Filling and draining systems
- 4.3.2.111 Circulating system
- 4.3.2.112 Gas heat transfer medium
- 4.3.2.113 Properties of liquid heat transfer medium
- 4.3.2.114 Abnormal test to simulate the failure of the controlled environment
- 4.3.2.115 Refrigerating equipment intended to be used with other equipment inside the refrigerated compartment
- 4.4.2 Application of fault conditions
- 4.4.2.10 Cooling
- 4.4.2.11 Heating devices
- 4.4.2.101 Motor-compressor
- 4.4.2.102 Fluid leakage in the equipment
- 4.4.2.103 Solenoid valve and motorized valve.
- 4.4.2.104 Failure of temperature control
- 4.4.2.105 Humidifier
- 4.4.2.106 Speed controller
- 4.4.3 Duration of tests
- 4.4.3.1 General
- 4.4.4 Conformity after application of fault conditions
- 4.4.4.1 General
- 5. Marking and documentation [Go to Page]
- 5.1.5 Terminals, connections and operating devices
- 5.1.5.101 Liquid connections for heat transfer medium
- 5.1.5.102 Liquid connection for filling of bath tanks with enclosed circulators
- 5.1.5.103 Other liquid connections and exhaust opening
- 5.1.5.104 Equipotential terminals
- 5.1.5.104 Connections for CO2 charging or LN2 feeding
- 5.1.101 Marking for equipment incorporating a refrigerant condensing unit
- 5.1.102 Marking for group I equipment and group II equipment
- 5.1.103 Marking for equipment incorporating mechanical movement
- 5.1.104 Movable immersion circulator
- 5.1.106 Warning requirements related to chemical hazard
- 5.4.106 Symbols particular to heating and cooling equipment
- 5.2 Warning markings
- 5.4.1 General
- 5.4.2 Equipment ratings
- 5.4.3 Equipment installation
- 5.4.3.101 Drying-out and standstill
- 5.4.4 Equipment operation
- 5.4.4.101 Cleaning and decontamination
- 5.4.5 Equipment maintenance and service
- 5.4.101 Additional instructions for group I equipment that contain or use flammable refrigerant
- 5.4.104 Additional instructions for group I equipment intended for use with flammable liquid heat transfer media
- 6. Protection against electric shock [Go to Page]
- 6.1.1 Requirements
- 6.3.1 Levels in NORMAL CONDITION
- 6.3.2 Levels in single fault condition
- 6.7.2.2 Solid insulation
- 6.7.2.2.101 Drying-out
- 6.8.1 General
- 6.8.2 Humidity preconditioning
- 6.9.1 General
- 6.10.1 Mains supply cords
- 7. Protection against mechanical hazards [Go to Page]
- 7.3.5.1 Gap limitations between moving parts – Access normally allowed
- 7.4 Stability
- 7.4.101 Movement during operation
- 7.4.102 Removable specimen holder for mechanical movement
- 7.5 Provisions for lifting and carrying
- 7.5.1 General
- 8. Resistance to mechanical stresses [Go to Page]
- 8.1 General
- 8.2.1 Static test
- 8.2.2 Impact test
- 8.103 Flexible tubing and hose subjected to liquid pressure other than that of the refrigerant (removed from 14.102)
- 9. Protection against the spread of fire [Go to Page]
- 9.5 Requirements for equipment containing or using flammable liquids
- 10. Equipment temperature limits and resistance to heat [Go to Page]
- 10.1 Surface temperature limits for protection against burns
- 10.1 Surface temperature limits for protection against burns and frostbite
- 10.2 Temperatures of windings
- 10.4 Conduct of temperature tests
- 10.4.1 General
- 10.101 Overtemperature protection
- 10.102 Restarting after interruption of cooling and/or heating
- 11. Protection against hazards from fluids and solid foreign objects [Go to Page]
- 11.1 General
- 11.3 Spillage
- 11.4 Overflow
- 11.4 Overflow and low level
- 11.4.101 Salt mist, thawing, condensate and spray
- 11.4.102 Hazards from liquids in relation to the specimen and application system
- 11.4.103 Hazards from liquids in relation to the shaker
- 11.4.104 Construction requirements related to manual filling or draining
- 11.7.1 Maximum pressure
- 11.7.10711.7.2 Leakage and rupture at high pressure
- 11.7.2.101 Intrinsic safety of refrigerating systems
- 11.7.2.101.1 General
- 11.7.2.101.2 Determination for the PS of the refrigerating system
- 11.7.2.101.3 Pressure test
- 11.7.2.101.4 Fatigue test
- 11.7.2. 102 Tightness of equipment
- 11.7.3 Leakage from low-pressure parts
- 11.7.101 Additional requirements for equipment containing refrigerating systems of normal tightness and for flammable refrigerant
- 11.7.101.1 General
- 11.7.101.2 Protected refrigerating system
- 11.7.101.3 Leakage test for flammable refrigerant
- 11.7.101.4 Scratch test for protected refrigerating systems
- 11.7.101.5 Unprotected refrigerating systems
- 11.7.101.6 Stagnation of leaked flammable refrigerant
- 11.7.101.7 Surface temperature limits
- 11.7.102 Pressure test for storage and transport
- 11.7.102.1 General
- 11.7.102.2 Test of charge-to-volume ratio
- 11.7.102.3 Test by pressure under the soaked temperature condition
- 11.7.102.4 Calculation by using the ideal gas law
- 11.7.103 Internal fluid leaks
- 11.7.104 Determining the gas concentration beyond the boundary of the equipment
- 11.7.107 Additional requirements for refrigerating equipment that use R-744 refrigerant
- 11.7.107.1 General
- 11.7.107.2 Requirements for refrigerating equipment that use R-744 in a subcritical application
- 11.7.107.3 Requirements for refrigerating equipment that use R-744 in a transcritical refrigerating system
- 11.7.107.4 Pressure test for storage and transport for equipment using R-744 (CO2)
- 11.7.107.4.1 General
- 11.7.107.4.2 Test of charge-to-volume ratio
- 11.7.107.4.3 Test by pressure under the soaked temperature condition
- 11.7.107.4.4 Test by pressure as limited by pressure relief devices
- 11.7.107.5 Discharge capacity requirements for a pressure-relief device
- 12. Protection against radiation, including laser sources, and against sonic and ultrasonic pressure [Go to Page]
- 12.1 General
- 12.2.1.3 Equipment not intended to emit radiation
- 12.3 Optical radiation
- 13. Protection against liberated gases and substances, explosion and implosion [Go to Page]
- 13.1 Poisonous and injurious gases and substances
- 13.2.1 Components
- 13.2.1 Components of the equipment and materials being treated
- 13.2.101 Implosion of low air pressure equipment
- 13.2.102 Explosion and implosion of lamps
- 13.101 Biohazardous substances
- 14. Components and subassemblies [Go to Page]
- 14.3 Overtemperature protection devices
- 14.101 Components and subassemblies for refrigerating systems
- 14.102 Materials for refrigerating systems
- 14.102.1 Requirements for copper in refrigerant circuits
- 14.102.2 Requirements for stainless steel
- 14.102.3 Minimum wall thickness for copper and steel tubes
- 15. Protection by interlocks [Go to Page]
- 15.1 General
- 15.101 Mechanism of door and/or lock for walk-in equipment
- 15.102 Interlock between the circulating pump, agitator and heating, cooling, mechanical movement and/or operation of the application system
- 15.103 Interlock between circulating fan, door or lid and heating, cooling and/or radiation, humidifying and mechanical movement
- 15.104 Interlock between salt spray and cover of salt spray corrosion test chamber
- 16. Hazards resulting from application [Go to Page]
- 16.1 Reasonably foreseeable misuse
- 16.101 Slip hazard
- 17. Risk assessment
- Annexes
- Annex K (normative) Insulation requirements not covered by 6.7 [Go to Page]
- K.1.3 Solid insulation for mains circuits
- K.1.3.1 General
- Annex L (informative) Index of defined terms
- Annex A A (informative) Useful symbols
- Annex B B (informative) Protection of people who are inside walk-in equipment
- BB.1 General
- BB.2 Emergency switch or signal
- BB.3 Walk-in equipment with a controlled atmosphere
- Annex C C (informative) Safety requirements for components and piping
- CC.1 Overview
- CC.2 Component and subassembly requirements for switches and controls used in refrigerating systems for North America
- Annex D D (informative) Equipment containing flammable refrigerants – Information and marking requirements
- DD.1 Marking, installation and operating instructions (SB6) [Go to Page]
- DD.1.1 Marking
- DD.1.2 Operator markings
- DD.1.3 Service markings
- DD.1.4 Disposal
- DD.1.5 Exposed tubing
- DD.1.6 Accessing the refrigerant circuit
- DD.1.7 Symbol for warning of flammable materials
- DD.1.8 Equipment containing a remote condensing unit
- DD.1.9 Refrigerating equipment intended for laboratory use
- DD.2 Installation and operating instructions [Go to Page]
- DD.2.1 Handling and moving
- DD.2.2 Packaging markings
- DD.2.3 Replacement components and servicing
- DD.2.4 Installation instructions for equipment containing a remote condensing unit
- Annex E E (normative) Non-sparking "n" electrical device
- 11 Supplementary requirements for non-sparking luminaires
- 19 Supplementary requirements for sealed devices producing arcs, sparks or hot surfaces [Go to Page]
- 19.1 Non-metallic materials
- 19.6 Type tests
- 20 Supplementary requirements for restricted-breathing enclosures protecting equipment producing arcs, sparks or hot surfaces
- Annex F F (normative) Test method for determining gas concentration beyond the boundary of the equipment [Go to Page]
- FF.1 Arrangement
- FF.2 Release conditions
- Annex G G (informative) Classification of fluid group [Go to Page]
- GG.1 General
- GG.2 Hazard class pictograms
- GG.3 Hazard statement code for fluids commonly used in the group I equipment
- GG.4 Meanings of the precautionary statement codes
- Annex H H (informative) Competence of personnel [Go to Page]
- HH.1 General
- HH.2 Personnel competence for refrigerating systems
- Bibliography [Go to Page]
