IEC 81346

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Short description: International standard

International Standard ISO/IEC 81346 series "Industrial systems, installations and equipment and industrial products – structuring principles and reference designations" [1] defines the rules for reference designation systems (RDS). It is published as a double logo standard prepared by IEC technical committee 3: Information structures and elements, identification and marking principles, documentation and graphical symbols,[2] in cooperation with ISO technical committee 10: Technical product documentation. The 81346 series replaces the deprecated IEC 61346:1996.

Contents

  • Part 1: Basic rules (IEC 81346-1:2022) [3]
  • Part 2: Classification of objects and codes for classes (IEC 81346-2:2019) [4][5]
  • Part 10: Power supply systems (ISO 81346-10:2022) [6][7]
  • Part 12: Construction works (ISO 81346-12:2018) [8]
  • Part 14: Manufacturing and Processing Systems (IEC 81346-14) [9]
  • Part 8: Properties
  • Part 20: Vehicle Systems
  • Part 50: Processes

Double Logo Standards

Future developments of the standards on reference designations will be made in cooperation between the IEC and the ISO and published as IEC 81346. (Standards developed in cooperation between IEC and ISO are assigned numbers in the 80000 series)

Outline

The standard consists of two parts and two supplements:

  • EN 81346-1: General rules (IEC 81346-1:2022)
  • EN 81346-2: Classification of objects and coding of classes (IEC 81346-2:2019)

The supplementary sheets for application guidelines (IEC/TR 61346-3:2001) and considerations of terms and their relationships (IEC 61346-4:1998) for DIN EN 61346 were withdrawn in May 2010 without replacement.

They are translations of the International Standard IEC 81346 published by the IEC. In 1997 the IEC changed the numbering of the IEC publications and added 60000 to the standard numbers used up to 1997. For example, IEC 61346 from 1996 was published under the number IEC 1346 but was listed under IEC 61346.

From 2010, the standards for reference marking will be published as a joint IEC/ ISO standard in the 80000 number range and then published under the number 81346.

Preceding Standard

Preceding standard IEC 61346:1996 has been withdrawn and is replaced by ISO/IEC 81346.

RDS-CW

ISO 81346-12, also known as RDS-CW (Reference Designation System for Construction Works), is the industry-specific application of the ISO/IEC 81346 standard series developed for the construction sector. It provides structuring principles and reference designation methodologies tailored to construction projects, facilitating classification and identification within the building and infrastructure environments, as well as utility and HVAC.[10]

RDS-CW is designed to integrate with broader classification and structuring systems (such as BIM[11][12]) enabling consistent designation of construction elements and the potential for alignment with other ISO/IEC 81346 applications like power system designations.

RDS-PS

ISO 81346-10, commonly referred to as RDS-PS (Reference Designation System for Power Supply Systems) [13] is the part of the ISO/IEC 81346 standard series that defines reference designations, principles, and structuring rules specifically for power and energy systems. [10] Unlike RDS-PP (Reference Designation System for Power Plants), the current ISO/IEC 81346-10:2022 edition is published as a full international standard, reflecting broader applicability and alignment with the core structuring principles of the 81346 series.[14]

RDS-PS supports clear and consistent designation of systems and system elements within every power and energy domain and industry, serving industries such as electrical power generation, transmission, and distribution, as well as other sectors where power supply structures are fundamental. [10]

In support of ISO/IEC 81346-10:2022, the supplementary document ISO/TS 81346-101:2025, “Modelling concepts, guidelines and requirements for power supply systems”, has been published as a Technical Specification (TS). It provides additional modelling principles and practical guidance for the application of 81346-10 within power supply systems. [15]

RDS-MS

IEC 81346-14, referred to as RDS-MS (Reference Designation System for Manufacturing and Processing Systems), [9] is a part of the ISO/IEC 81346 series currently under development for systems within the manufacturing and processing sector.

It provides industry-specific classification libraries intended for application across manufacturing and process industries, including consumer goods, machine building, industrial equipment, food and beverage, pharmaceuticals, packaging, and mining.[10]

Currently, it is in the Final Draft International Standard (FDIS) stage of development, and once published, RDS-MS will offer a harmonized approach to structuring and identifying systems and components across manufacturing industries and process-oriented environments.[9]

Under Development

  • Part 8: 81346-8: Properties [16]

ISO/IEC 81346-8 defines principles and rules for the designation and identification of properties associated with objects and systems. The standard supports the consistent specification of characteristics in technical documentation and is intended to strengthen the relationship between objects and their properties, particularly during the design and engineering phases.[10]

  • Part 20: 81346-20: Vehicle Systems [17]

ISO/IEC 81346-20, also known as RDS-VE (Reference Designation System for Vehicles), defines the principles and rules for structuring systems within vehicles and assigning reference designations. The standard addresses vehicles in a broad sense and is intended to support the design, planning, production, operation, and maintenance of aircraft, vessels, motor vehicles, rail vehicles, and other means of transportation.[10]

  • Part 50: 81346-50: Processes [18]

ISO/IEC 81346-50 establishes principles and rules for the structuring and designation of processes and activities, rather than physical systems. It introduces a standardized framework for modelling and assigning reference designations to actions and operational activities, supporting consistent identification across IT systems, documentation, and technical information management.[10]

Forums

RDS4X website is a non-profit group set up to support collaboration among stakeholders working with the implementation of ISO/IEC 81346.

Classifications

Components

The specification defines 616 components. They are categorized by main class (A), subclass (B), and leaf class (C).[19]

IEC 81346-2:2019 components
A B C Title
B Sensing object
B BA Electric potential sensing object
B BA BAA Voltage transformer
B BA BAB Voltage relay
B BB Resistivity Sensing Object
B BB BBA Electric resistivity sensor
B BB BBB Electric resistivity detector
B BB BBC Thermal resistivity sensor
B BB BBD Thermal resistivity detector
B BC Electric current sensing object
B BC BCA Current transformer
B BC BCB Current relay
B BD Density sensing object
B BD BDA Density transmitter
B BD BDB Density switch
B BE Field sensing object
B BE BEA Electric field detector
B BE BEB Electric field sensor
B BE BEC Magnetic field detector
B BE BED Magnetic field sensor
B BF Flow sensing object
B BF BFA Flow detector
B BF BFB Flow sensor
B BG Physical dimension sensing object
B BG BGA Position transmitter
B BG BGB Position switch
B BG BGC Distance transmitter
B BG BGD Distance switch
B BG BGE Angle transmitter
B BG BGF Angle xwitch
B BG BGG Object Scanner
B BH Energy sensing object
B BH BHA Flow energy meter
B BH BHB Thermal energy meter
B BH BHC Electric energy meter
B BJ Power sensing object
B BJ BJA Power meter
B BJ BJB Power Limit Switch
B BK Time sensing object
B BK BKA Time switch
B BK BKB Timer sensor
B BL Level sensing object
B BL BLA Level transmitter
B BL BLB Level switch
B BM Humidity sensing object
B BM BMA Humidity transmitter
B BM BMB Humidity switch
B BP Pressure sensing object
B BP BPA Absolute pressure transmitter
B BP BPB Absolute Pressure Switch
B BP BPC Differential pressure transmitter
B BP BPD Differential pressure switch
B BQ Concentration sensing object
B BQ BQA Gas sensor
B BQ BQB Gas detector
B BQ BQC Liquid sensor
B BQ BQD Liquid detector
B BQ BQE Solid matter sensor
B BQ BQF Solid matter detector
B BR Radiation sensing object
B BR BRA Light sensor
B BR BRB Light detector
B BR BRC Electromagnetic wave sensor
B BR BRD Electromagnetic wave detector
B BR BRE Radiation counter
B BR BRF Radiation detector
B BS Time-rating object
B BS BSA Cycle rate transmitter
B BS BSB Cycle rate detecting switch
B BS BSC Speed sensing transmitter
B BS BSD Speed detecting switch
B BS BSE Tachometer
B BS BSF Rotation speed relay
B BS BSG Accelerometer transmitter
B BS BSH Accelerometer relay
B BT Temperature sensing object
B BT BTA Temperature transmitter
B BT BTB Temperature switch
B BU Multi-quantity sensing object
B BU BUA Multi-sensor
B BU BUB Multi-detector
B BW Force sensing object
B BW BWA Weight transmitter
B BW BWB Weight detecting switch
B BW BWC Force value transmitter
B BW BWD Force detecting switch
B BW BWE Torque value transmitter
B BW BWF Torque switch
B BX Audio-visual sensing object
B BX BXA Acoustic sensor
B BX BXB Acoustic detector
B BX BXC Image sensor
B BX BXD Image detector
B BY Information sensing object
B BY BYA Chip reader
B BY BYB Electromagnetic reader
B BY BYC Optical reader
B BZ Incident sensing object
B BZ BZA Counter
B BZ BZB Threshold detector
B BZ BZC Person detector
B BZ BZD Matter detector
C Storing object
C CA Capacitive storing object
C CA CAA Capacitor
C CB Inductive storing object
C CB CBA Inductor
C CC Electrochemical storing object
C CC CC] echargeable battery
C CF Information storing object
C CF CFA Information storing media
C CL Open stationary storing object
C CL CLA Pool
C CL CLB Shelf
C CL CLC Seat
C CM Enclosed stationary storing object
C CM CMA Tank
C CM CMB Box
C CN Moveable storing object
C CN CNA Container
C CN CNB Gas cylinder
C CN CNC Drum
C CP Thermal energy storing object
C CP CPA Liquid Tank
C CP CPB Gas tank
C CP CPC Matter tank
C CP CPD Crystalline tank
C CQ Mechanical energy storing object
C CQ CQA Flywheel
C CQ CQB Spring
C CQ CQC Counterweight
E Emitting object
E EA Light object
E EA EAA Electric lamp
E EA EAB Gas lamp
E EA EAC Liqiud lamp
E EB Electric heating object
E EB EBA Electric boiler
E EB EBB Electric heating surface
E EB EBC Heating cable
E EB EBD Electric hot air blower
E EB EBE Arc heating object
E EB EBF Induction heater
E EB EBG Infrared heater
E EB EBH Electric oven
E EC Electric cooling object
E EC ECA Electric cooling surface
E EC ECB Electric cold air blower
E EC ECC Compression chiller
E EE Wireless power object
E EE EEA Inductive power antenna
E EE EEB Magnetron
E EE EEC X-ray source
E EE EED Gamma ray source
E EE EEE Capacitive coupler
E EG Thermal energy transfer object
E EG EGA Heat pump
E EG EGB Peltier element
E EG EGC Heat exchanger
E EM Combustion heating object
E EM EMA Stove
E EM EMB Combustion boiler
E EM EMC Burner
E EP Thermal heating object
E EP EPA Heating surface
E EP EPB Heating tube
E EP EPC Heating panel
E EP EPD Hot air blower
E EQ Thermal cooling object
E EQ EQA Cooling surface
E EQ EQB Cooling panel
E EQ EQC Chiller
E EQ EQD Cooler
E EQ EQE Cooling tube
E ET Nuclear powered heating object
E ET ETA Boiling water reactor
E ET ETB Pressurized water reactor
E ET ETC High-temperature gas-cooled reactor
E EU Particle emitting object
E EU EUA Plasma generator
E EU EUB Particle generator
E EV Acoustic wave emitting object
E EV EVA Sonar
E EV EVB Anti-noise loudspeaker
F Protecting object
F FA Overvoltage protecting object
F FA FAA Spark gap surge arrester
F FA FAB Varistor surge arrester
F FA FAC Zener diode
F FA FAD Surge protector
F FB Earth fault current protecting object
F FB FBA Residual current device
F FB FBB Neutral earthing limiter
F FC Overcurrent protecting object
F FC FCA Fuse
F FC FCB Miniature circuit-breaker
F FC FCC Bimetal
F FE Field protecting object
F FE FEA Electric field shield
F FE FEB Magnetic field shield
F FE FEC Electromagnetic field shield
F FL Pressure protecting object
F FL FLA Safety valve
F FL FLB Safety damper
F FL FLC Vacuum breaker
F FL FLD Rupture disc
F FL FLE Expansion tank
F FM Fire protecting object
F FM FMA Fire damper
F FM FMB Flue damper
F FM FMC Fire-and-flue damper
F FM FMD Fire extinguisher
F FM FME Fire blind
F FM FMF Smoke curtain
F FM FMG Smoke closure
F FM FMH Fire insulation
F FM FMJ Fire retardant coating
F FM FMK Fire impregnation
F FN Mechanical force protecting object
F FN FNA Safety clutch
F FN FNB Impact protection
F FQ Preventive protecting object
F FQ FQA Protective mesh
F FQ FQB Glide protection
F FQ FQC Protective rod
F FQ FQD Protective rail
F FQ FQE Protective fabric
F FQ FQF Glare protection
F FQ FQG Splatter protection
F FQ FQH Break protection
F FQ FQJ Lock hatch cover
F FR Wear protection object
F FR FRA Lubrication object
F FR FRB Wear pad
F FS Environment protecting object
F FS FSA Plaster
F FS FSB Paint
F FS FSC Impregnation
F FS FSD Shelter
F FS FSE Seismic vibration control device
F FS FSF Corrosion protection
F FS FSG Protective seal
F FS FSH Material separating layer
G Generating object
G GA Mechanical to electrical energy generating object
G GA GAA AC generator
G GA GAB DC generator
G GB Chemical to electrical energy generating object
G GB GBA Electric battery
G GB GBB Fuel cell
G GC Solar to electrical energy generating object
G GC GCA Crystalline photovoltaic module
G GC GCB Thin film photovoltaic module
G GF Signal generating object
G GF GFA Electromagnetical transmiter
G GF GFB Signal generator
G GL Continuous transfer object
G GL GLA Belt conveyer
G GL GLB Chain conveyer
G GL GLC Roller conveyer
G GL GLD Screw conveyer
G GL GLE Escalator
G GL GLF Paternoster
G GL GLG Vibrating conveyor
G GM Discontinuous transfer object
G GM GMA Wagon
G GM GMB Elevator
G GM GMC Crane
G GM GMD Palletizer
G GM GME Turntable
G GM GMF Vibrating feeder
G GP Liquid flow generating object
G GP GPA Positive displacement pump
G GP GPB Liquid velocity pump
G GP GPC Hydraulic ram pump
G GP GPD Lubricator
G GQ Gaseous flow generating object
G GQ GQA Gas compressor
G GQ GQB Mechanical fan
G GQ GQC Gas ejector
G GR Solar to thermal energy generating object
G GR GRA Solar Panel
G GR GRB Solar tower
H Matter processing object
H HJ Primary forming object
H HJ HJA Casting tool
H HJ HJB Press
H HK Surface treatment object
H HK HKA Surface preparation machine
H HK HKB Surface modification machine
H HK HKC Surface coating machine
H HL Assembling object
H HL HLA Assembly robot
H HL HLB Mechanical joining machine
H HL HLC Thermal welding machine
H HL HLD Chemical joining machine
H HM Force separating object
H HM HMA Settling tank
H HM HMB Centrifuge
H HM HMC Cyclone
H HP Thermal separating object
H HP HPA Dryer
H HP HPB Distillation column
H HQ Mechanical separating object
H HQ HQA Skimmer
H HQ HQB Separation grate
H HR Electric or magnetic separating object
H HR HRA Electrostatic separator
H HR HRB Magnetic separator
H HS Chemical separating object
H HS HSA Ion exchanger
H HS HSB Absorber
H HS HSC Adsorber
H HU Grinding and crushing object
H HU HUA Cutter
H HU HUB Mill
H HU HUC Crusher
H HV Agglomerating object
H HV HVA Pelletizer
H HV HVB Flocculator
H HW Mixing object
H HW HWA Mixer
H HW HWB Humidifier
H HX Reacting object
H HX HXA Chemical reactor
H HX HXB Fermenter
K Information processing object
K KE Electric signal processing object
K KE KEA Computer
K KE KEB Control unit
K KE KEC Communication device
K KE KED Router
K KE KEE Card writer
K KF Electric signal relaying object
K KF KFA Relay
K KF KFB Time relay
K KF KFC Repeater
K KF KFD Electric network bridge
K KF KFE Electric network switch
K KG Optical signalling object
K KG KGA Optical network switch
K KG KGB Optical router
K KG KGC Optical repeater
K KH Fluid signalling object
K KH KHA Fluid controller
K KH KHB Pilot valve
K KJ Mechanical signalling object
K KJ KJA Mechanical regulator
K KJ KJB Locking cylinder
K KJ KJC Key coded device
K KZ Multiple kind signalling object
K KZ KZA Multiple kind switch
M Driving object
M MA Electromagnetic rotational driving object
M MA MAA Electric motor
M MA MAB Stepper motor
M MB Electromagnetic linear driving object
M MB MBA Linear motor
M MB MBB Electromagnet
M MC Magnetic force driving object
M MC MCA Permanent magnet
M MD Piezoelectric driving object
M MD MDA Piezoelectric motor
M ML Mechanical energy driving object
M ML MLA Gravity energy drive
M ML MLB Elastic energy drive
M ML MLC Wind turbine
M ML MLD Water turbine
M ML MLE Gas turbine
M MM Fluid powered driving object
M MM MMA Hydraulic cylinder
M MM MMB Pneumatic cylinder
M MM MMC Hydraulic motor
M MM MMD Pneumatic motor
M MS Combustion engine
M MS MSA Otto cycle engine
M MS MSB Diesel cycle engine
M MS MSC Wankel engine
M MT Heat engine
M MT MTA Steam engine
M MT MTB Stirling Engine
N Covering object
N NA Infilling object
N NA NAA Pane
N NA NAB Panel
N NA NAC Grating
N NA NAD Sealing joint
N NB Closure object
N NB NBA Door leaf
N NB NBB Leaf of large door
N NB NBC Cabinet door
N NB NBD Gate leaf
N NB NBE Hatch cover
N NC Finishing object
N NC NCA Paving
N NC NCB Wall covering
N NC NCC Flooring
N NC NCD Ceiling finish
N NC NCE Roofing
N NC NCF Window Sill
N NC NCG Plant mat
N NC NCH Surface forming object
N ND Terminating object
N ND NDA Curb
N ND NDB Crown
N ND NDC Raised floor edge
N ND NDD Ceiling edge
N ND NDE Fascia
N NE Hiding object
N NE NEA Ceiling lining
N NE NEB Skirting board
N NE NEC Wall corner lining
N NE NED Flashing
N NE NEE Reveal liner
P Presenting object
P PF Visible state indicator
P PF PFA Signal lamp
P PF PFB Semaphore
P PG Scalar display
P PG PGA Voltmeter
P PG PGB Resistivity indicator
P PG PGC Ampere meter
P PG PGD Density indicator
P PG PGE Field indicator
P PG PGF Flow meter
P PG PGG Dimension indicator
P PG PGH Energy meter
P PG PGJ Wattmeter
P PG PGK Clock
P PG PGL Level indicator
P PG PGM Humidity indicator
P PG PGP Pressure indicator
P PG PGQ Concentration indicator
P PG PGR Electromagnetic wave indicator
P PG PGS Frequency meter
P PG PGT Temperature indicator
P PG PGV power factor meter
P PG PGW Force indicator
P PG PGX Audio spectrometer
P PG PGZ Quantity meter
P PH Graphical display
P PH PHA Display
P PH PHB Projector
P PH PHC Printer
P PH PHD Marking
P PH PHE Sign
P PH PHF Marking post
P PJ Acoustic device
P PJ PJA Loudspeaker
P PJ PJB Horn
P PJ PJC Bell
P PK Tactile device
P PK PKA Vibrator
P PK PKB Braille text sign
P PK PKC Free height warning
P PL Ornamental object
P PL PLA Cornice
P PL PLB Figure
P PL PLC Frieze
P PL PLD Picture
P PL PLE Carpet
P PZ Multiple form presenting object
P PZ PZA Audio-visual alarm
P PZ PZB Television set
Q Controlling object
Q QA Electric controlling object
Q QA QAA Contactor
Q QA QAB Circuit breaker
Q QA QAC Electronic power switch
Q QB Electric separating object
Q QB QBA Fuseless disconnector
Q QB QBB Fused disconnector
Q QC Electric earthing object
Q QC QCA Earthing switch
Q QM Sealed fluid switching object
Q QM QMA Liquid shutoff valve
Q QM QMB Gas shutoff valve
Q QN Sealed fluid varying object
Q QN QNA Liquid control valve
Q QN QNB Gas control valve
Q QP Open fluid controlling object
Q QP QPA Lock gate
Q QP QPB Vortex generator
Q QP QPC Rudder
Q QQ Space access object
Q QQ QQA Window
Q QQ QQB Window unit
Q QQ QQC Door
Q QQ QQD Hatch
Q QQ QQE Large door
Q QQ QQF Gate
Q QQ QQG Rail scotch block
Q QR Solid substance flow varying object
Q QR QRA Rotary air lock valve
Q QR QRB Iris valve
Q QR QRC Flap gate valve
Q QS Mechanical movement controlling object
Q QS QSA Lock
Q QS QSB Track switch
Q QZ Multiple measure controlling object
Q QZ QZA Earthing and disconnecting switch
R Restricting object
R RA Electricity restricting object
R RA RAA Diode
R RA RAB Reactor
R RA RAC Resistor
R RB Electricity stabilising object
R RB RBA Uninterrupted power supply
R RB RBB Power filter
R RB RBC Phase compensator
R RB RBD Power equaliser
R RF Signal stabilising object
R RF RFA Signal equaliser
R RF RFB Signal filter
R RL Movement restricting object
R RL RLA Security chain
R RL RLB Shock absorber
R RL RLC Brake
R RL RLD Speed bump
R RM Return flow restricting object
R RM RMA Non-return valve
R RM RMB Check damper
R RM RMC Flap
R RM RMD Stench trap
R RN Flow restrictor
R RN RNA Regulating valve
R RN RNB Regulating damper
R RN RNC Soilds regulating valve
R RN RND Diffuser
R RQ Local climate stabilising object
R RQ RQA Insulation
R RQ RQB Stabilizing layer
R RQ RQC Noise barrier
R RQ RQD Screen
R RQ RQE Curtain
R RQ RQF Louvered blind
R RQ RQG Shutter
R RQ RQH Weed control fabric
R RQ RQJ Screen wall
R RU Access restricting object
R RU RUA Fence
R RU RUB Movable barrier
R RU RUC Turnstile
R RU RUD Bollard
R RU RUE Rodent barrier
R RU RUF Bird mesh
S Human interacting object
S SF Face interaction object
S SF SFA Eye focus reader
S SF SFB Face recognition device
S SG Hand interaction device
S SG SGA Turn handle
S SG SGB Grip handle
S SG SGC Push handle
S SG SGD Lever handle
S SG SGE Pull handle
S SG SGF Key
S SH Foot interaction device
S SH SHA Pedal switch
S SJ Finger interaction device
S SJ SJA Flip switch
S SJ SJB Pushbutton
S SJ SJC Touch actuator
S SJ SJD Turning wheel
S SK Movement interaction device
S SK SKA Joystick
S SK SKB Mouse
S SZ Multi-interaction device
S SZ SZA Operating panel
T Transforming object
T TA Electric energy transforming object
T TA TAA Transformer
T TA TAB DC/DC converter
T TA TAC Frequency converter
T TA TAD Phase shifter
T TB Electric energy converting object
T TB TBA Rectifier
T TB TBB Inverter
T TB TBC Bidirectional converter
T TC Universal power supply
T TC TCA Universal AC power supply
T TC TCB Universal DC power supply
T TF Signal converting object
T TF TFA Amplifier
T TF TFB Signal antenna
T TF TFC Signal converter
T TF TFD Optical receiver/transmiter
T TF TFE Telephone
T TL Mechanical energy transforming object
T TL TLA Gear
T TL TLB Torque converter
T TL TLC Lever
T TM Mass reduction object
T TM TMA Drilling machine
T TM TMB Thermal cutter
T TM TMC Etching machine
T TP Matter reshaping object
T TP TPA Forging machine
T TP TPB Extruder
T TP TPC Wire drawing machine
T TP TPD Rolling machine
T TP TPE Bending machine
T TP TPF Electromagnetic forming machine
T TR Organic plant
T TR TRA Tree
T TR TRB Shrub
T TR TRC Climber
T TR TRD Herb
U Holding object
U UA Positioning object
U UA UAA Isolator
U UA UAB Cable gland
U UA UAC Light fixture
U UA UAD Stair stringer
U UA UAE Batten
U UA UAF Stake
U UA UAG Rail gauge
U UA UAH Clamp
U UA UAJ Vehicle stand
U UB Carrying object
U UB UBA Cable tray
U UB UBB Hanger
U UB UBC Tread
U UB UBD Mast
U UB UBE Table
U UB UBF Portal
U UC Enclosing object
U UC UCA Cubicle
U UC UCB Plant soil
U UC UCC Cooker hood
U UL Structural supporting object
U UL ULA Base course
U UL ULB Console
U UL ULC Pile
U UL ULD Column
U UL ULE Beam
U UL ULF Tension brace
U UL ULG Block
U UL ULH Arch
U UL ULJ Abutment
U UL ULK Slab plate
U UL ULL Retaining wall plate
U UL ULM Wall plate
U UL ULN Shell
U UL ULP Continuous arch
U UL ULQ Bearing plate
U UL ULR Catenary
U UM Reinforcing object
U UM UMA Reinforcing rod
U UM UMB Reinforcing mesh
U UM UMC Reinforcing mass layer
U UM UMD Reinforcing matter
U UM UME Security strike plate
U UM UMF Splice
U UM UMG Soil vertical drain
U UM UMH Concrete spurting
U UM UMJ Concrete lining
U UM UMK Stiffener
U UM UML Diagonal bonding
U UM UMM Stabilizing cable
U UM UMN Horizontal rail
U UM UMP Earth pressure embankment
U UN Framing object
U UN UNA Fixed frame
U UN UNB Threshold
U UN UNC Movable frame
U UN UND Glazing bar frame
U UP Jointing object
U UP UPA Bearing
U UP UPB Hinge
U UP UPC Chemical joint
U UQ Fastening object
U UQ UQA Fixed fastening
U UQ UQB Removable fastening
U UQ UQC Chemical bond
U UT Levelling object
U UT UTA Filling
U UT UTB Excavation
U UU Existing ground
U UU UUA Rock
U UU UUB Friction soil
U UU UUC Cohesive soil
U UU UUD Organic soil
U UU UUE Filled material
W Guiding object
W WB High voltage electric energy guiding object
W WB WBA High voltage busbar
W WB WBB High voltage cable
W WB WBC High voltage wire
W WB WBD High voltage bushing
W WD Low voltage electric energy guiding object
W WD WDA Low voltage busbar
W WD WDB Low voltage cable
W WD WDC Low voltage wire
W WD WDD Low voltage bushing
W WE Reference potential guiding object
W WE WEA Earthing rail
W WE WEB Earthing cable
W WE WEC Equipotential bonding rail
W WE WED Equipotential bonding cable
W WG Electric signal guiding object
W WG WGA Control cable
W WG WGB Data cable
W WG WGC Electric signal bushing
W WH Light guiding object
W WH WHA Fibre optical cable
W WH WHB Optical light fibre
W WH WHC Lens
W WH WHD Mirror
W WJ Sound guiding object
W WJ WJA Sound reflector
W WL Solid matter guiding object
W WL WLA Roller table
W WL WLB Chute
W WM Open enclosure guiding object
W WM WMA Drainage layer
W WM WMB Gutter
W WM WMC Drain liquid flashing
W WM WMD Drip nose
W WM WME Gutter drip
W WM WMF Drainpipe
W WM WMG Infiltration chamber
W WP Closed enclosure guiding object
W WP WPA Pipe
W WP WPB Duct
W WP WPC Hose
W WQ Mechanical energy guiding object
W WQ WQA Drive axle
W WQ WQB Drive belt
W WQ WQC Drive chain
W WQ WQD Drive link
W WQ WQE Wheel
W WQ WQF Toothed bar
W WQ WQG Hydraulic hose
W WR Rail object
W WR WRA Track
W WR WRB Track crossing
W WV Thermal energy guiding object
W WV WVA Thermal conductor
W WV WVB Thermal paste
W WZ Multiple flow guiding object
W WZ WZA Umbilical cable
X Interfacing object
X XB High voltage connecting object
X XB XBA High voltage terminal
X XB XBB High voltage socket
X XB XBC High voltage terminal box
X XD Low voltage connecting object
X XD XDA Electric terminal
X XD XDB Low voltage power socket
X XD XDC Terminal box
X XD XDD Power outlet
X XD XDE Power distributer
X XE Potential connecting object
X XE XEA PE terminal
X XE XEB PB terminal
X XE XEC FE terminal
X XE XED FB terminal
X XE XEE Earth electrode
X XE XEF Collector
X XG Electric signal connecting object
X XG XGA Signal socket
X XG XGB Terminal
X XG XGC Patch panel
X XG XGD Signal distributor
X XH Light connecting object
X XH XHA Fixed light fibre socket
X XK Collecting interfacing object
X XK XKA Sink
X XK XKB Toilet
X XK XKC Urinal
X XK XKD Drip cup
X XK XKE Floor drain
X XM Sealed flow connecting object
X XM XMA Tube flange
X XM XMB Tube fitting
X XN Non-detachable coupling
X XN XNA Flange coupler
X XN XNB Split-muff coupler
X XN XNC Hirth coupler
X XN XND Cardan joint
X XN XNE Buffer-and-chain coupler
X XN XNF Link-and pin coupler
X XP Detachable coupling
X XP XPA Friction clutch
X XP XPB Fluid coupling
X XP XPC Overrunning clutch
X XP XPD Magnetic hoist
X XS Level connecting component
X XS XSA Landing
X XS XSB Flight of stairs
X XS XSC Ladder
X XS XSD Ramp
X XS XSE Fireman’s pole
X XT Space linking object
X XT XTA Hole
X XT XTB Box-out
X XZ Multiple flow connector object
X XZ XZA Multi connector

See also

References

  1. ↑ "The Reference Designation System (RDS) A common naming convention". http://81346.com/english/wp-content/uploads/INCOSE-IS2016-RDS-%E2%80%93-A-common-naming-convention-for-systems-and-elements.pdf. 
  2. ↑ "IEC TC3". http://tc3.iec.ch/index_tc3.html. 
  3. ↑ "IEC 81346-1:2022 Abstract ISO Webstore". https://www.iso.org/standard/82229.html. 
  4. ↑ "IEC 81346-2 Abstract". https://www.iso.org/standard/75265.html. 
  5. ↑ "IEC 81346-2:2019 Abstract IEC Webstore". https://webstore.iec.ch/publication/29181. 
  6. ↑ "ISO/TS 81346-10:2022 Abstract ISO Webstore". https://www.iso.org/standard/75471.html. 
  7. ↑ "ISO/TS 81346-10:2022 Abstract IEC Webstore". https://webstore.iec.ch/publication/67423. 
  8. ↑ "IEC 81346-12:2018 Abstract". https://www.iso.org/standard/63886.html. 
  9. ↑ 9.0 9.1 9.2 "IEC/FDIS 81346-14". ISO. https://www.iso.org/standard/86477.html. 
  10. ↑ 10.0 10.1 10.2 10.3 10.4 10.5 10.6 "The Common Language for Engineering". https://www.81346.com/rds-81346. 
  11. ↑ "Molio Construction Information Centre". https://www.icis.org/wp-content/uploads/2018/07/2018_Classification-and-standardization.pdf. 
  12. ↑ "BIM Blog Comparing Classification Systems". 21 May 2019. http://www.bimaxon.com/comparing-classification-systems-i-the-2-types. 
  13. ↑ "ISO 81346-10:2022". https://www.iso.org/standard/75471.html. 
  14. ↑ "ISO Technical Specification". https://www.iso.org/deliverables-all.html#TS. 
  15. ↑ "ISO/CD TS 81346-101". https://www.iso.org/standard/81285.html. 
  16. ↑ https://www.iso.org/standard/90285.html
  17. ↑ "Industrial systems, installations and equipment and industrial products — Structuring principles and reference designations Part 20: Aircraft system". https://www.iso.org/standard/89053.html. 
  18. ↑ https://www.iso.org/standard/87424.html
  19. ↑ "Classification CCI". https://cci.koncepcebim.gov.cz/?k=5. 



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