GB/T 14048.21-2013
Low-voltage switchgear and controlgear.Part 5-9: Control circuit devices and switching elements.Flow rate switches (English Version)
- Standard No.
- GB/T 14048.21-2013
- Language
- Chinese, Available in English version
- Release Date
- 2013
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 14048.21-2013
- Scope
- This part specifies the following contents of the flow switch:--definition;--classification;--characteristics;--product information;--normal use, installation and transportation conditions;--structure and performance requirements;--rating performance verification test . This section applies to flow switches used to detect the flow rate of gases, liquids or granular solids. If the preset flow rate of the flow switch is exceeded, the switch changes its output state. These flow switches are self-contained, have semiconductor switching elements, and are intended to be connected to circuits with a rated voltage not exceeding 250 V ac, 50/60 Hz, or 300 V dc. Some additional measures necessary for use with explosive detection materials and/or flow switches located in explosive locations are not specified in this section. This section does not apply to equipment with analog outputs.
GB/T 14048.21-2013 Referenced Document
- GB 14048.1-2012 Low-voltage switchgear and controlgear.Part 1:General rules
- GB 17625.1-2003 Electromagnetic compatibility limits Limits for harmonic current emissions(equipment input current≤16 A per phase
- GB 17625.2-2007 Electromagnetic compatibility (EMC).Limits.Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current ≤16A per phase and not subject to conditional connection
- GB 4824-2004 Industrial,scientific and medical(ISM)radio-frequency equipment-Electromagnetic disturbance characteristics-Limits and methods of measurement
- GB 7947-2010 Basic and safety principles for man-machine interface, marking and identification.Identification of conductors by colours or alphanumerics
- GB/T 14048.10-2008 Low-voltage switchgear and controlgear.Part 5-2: Control circuit devices and switching element.Proximtiy switches
- GB/T 17045-2008 Protection against electric shock.Common aspects for installation and equipment
- GB/T 17626.11-2008 Electromagnetic compatibility.Testing and measurement techniques.Voltage dips, short interruptions and voltage variations immunity tests
- GB/T 17626.13-2006 Electromagnetic compatibility Testing and measurement techniques Harmonics and interharmonics including mains signalling at a.c. power port, low frequency immunity test
- GB/T 17626.2-2006 Electromagnetic compatibility Testing and measurement techniques Electrostatic discharge immunity test
- GB/T 17626.4-2008 Electromagnetic compatibility.Testing and measurement techniques.Electrical fast transient/burst immunity test
- GB/T 17626.6-2008 Electromagnetic compatibility. Testing and measurement techniques. Immunity to conducted disturbances, induced by radio-frequency fields
- GB/T 17626.8-2006 Electromagnetic compatibility Testing and measurement techniques Power frequency magnetic field immunity test
- IEC 61000-3-2:2005 Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current
16 A per phase)
GB/T 14048.21-2013 history
- 2013 GB/T 14048.21-2013 Low-voltage switchgear and controlgear.Part 5-9: Control circuit devices and switching elements.Flow rate switches
GB/T 14048.21-2013 -All Parts
GB/T 14048.1-2023 Low voltage switchgear and controlgear Part 1: General principles
GB/T 14048.10-2016 Low-voltage switchgear and controlgear—Part 5-2: Control circuit devices and switching elements—Proximity switches
GB/T 14048.11-2016 Low-voltage switchgear and control gear.Part 6-1:Multiple function equipment.Transfer switching equipment
GB/T 14048.12-2016 Low-voltage switchgear and controlgear Part 4-3: Contactors and motor starters for AC semiconductor controllers and contactors for non-motor loads
GB/T 14048.13-2017 Low-voltage switchgear and controlgear—Part 5-3: Control circuit devices and switching elements—Requirements for proximity devices with defined behaviour under fault conditions (PDDB)
GB/T 14048.14-2019 Low-voltage switchgear and controlgear—Part 5-5: Control circuit devices and switching elements—Electrical emergency stop device with mechanical latching function
GB/T 14048.15-2006 Low-voltage switchgear and controlgear Part 5-3: Control circuit devices and switching elements DC interface for proximity sensors and switching amplifiers (NAMUR)
GB/T 14048.16-2016 Low-voltage switchgear and controlgear - Part 8: Built-in thermal protection (PTC) control units for rotating electrical machines
GB/T 14048.17-2008 Low-voltage switchgear and controlgear.Part 5-4:Control circuit devices and switching elements.Method of assessing the performance of low-formance of low-energy contacts.Special tests
GB/T 14048.18-2016 Low-voltage switchgear and controlgear.Part 7-3:Ancillary equipment.Safety requirements for fuse terminal blocks
GB/T 14048.19-2013 Low-voltage switchgear and controlgear.Part 5-7: Control circuit devices and switching elements.Requirements for proximity devices with analogue output
GB/T 14048.2-2020 Low-voltage switchgear and controlgear—Part 2: Circuit-breakers
GB/T 14048.20-2013 Low-voltage switchgear and controlgear.Part 5-8:Control circuit devices and switching elements.Three-position enabling switches
GB/T 14048.21-2013 Low-voltage switchgear and controlgear.Part 5-9: Control circuit devices and switching elements.Flow rate switches
GB/T 14048.22-2022 Low-voltage switchgear and controlgear—Part 7-4: Ancillary equipment—PCB terminal blocks for copper conductors
GB/T 14048.23-2022 Low-voltage switchgear and controlgear—Part 9-1: Active arc-fault mitigation systems—Arc quenching devices
GB/T 14048.3-2017 Low-voltage switchgear and controlgear—Part3: Switches，disconnectors，switch-disconnectors and fuse-combination units
GB/T 14048.4-2020 Low-voltage switchgear and controlgear—Part 4-1: Contactors and motor-starters—Electromechanical contactors and motor-starters (Including motor protector)
GB/T 14048.5-2017 Low-voltage switchgear and controlgear—Part 5-1: Control circuit devices and switching element—Electromechanical control circuit devices
GB/T 14048.6-2016 Low-voltage switchgear and controlgear—Part 4-2: Contactors and motor-starters—AC semiconductor motor controllers and starters (including soft-starters)
GB/T 14048.7-2016 Low-voltage switchgear and controlgear.Part 7-1:Ancillary equipment.Terminal blocks for copper conductors
GB/T 14048.8-2016 Low-voltage switchgear and controlgear.Part 7-2:Ancillary equipment.Protective conductor terminal blocks for copper conductors
GB/T 14048.9-2008 Low-voltage switchgear and controlgear - Section 6-2: Multiple function equipment control and protective switching devices (or equipment) (CPS)