: Public <<enumeration>> Class
Created: 08/05/2008 14:13:17
Modified: 12/07/2017 12:02:08
Project:
Advanced:
The derived units defined for usage in the CIM. In some cases, the derived unit is equal to an SI unit. Whenever possible, the standard derived symbol is used instead of the formula for the derived unit. For example, the unit symbol Farad is defined as "F" instead of "CPerV". In cases where a standard symbol does not exist for a derived unit, the formula for the unit is used as the unit symbol. For example, density does not have a standard symbol and so it is represented as "kgPerm3". With the exception of the "kg", which is an SI unit, the unit symbols do not contain multipliers and therefore represent the base derived unit to which a multiplier can be applied as a whole. <br/><br/>Every unit symbol is treated as an unparseable text as if it were a single-letter symbol. The meaning of each unit symbol is defined by the accompanying descriptive text and not by the text contents of the unit symbol.<br/><br/>To allow the widest possible range of serializations without requiring special character handling, several substitutions are made which deviate from the format described in IEC 80000-1. The division symbol "/" is replaced by the letters"Per". Exponents are written in plain text after the unit as "m3" instead of being formatted as in "m<sup>3</sup>" or introducing a symbol as in "m^3". The degree symbol "°" is replaced with the letters "deg". Any clarification of the meaning for a substitution is included in the description for the unit symbol.<br/><br/>Non-SI units are included in list of unit symbols to allow sources of data to be correctly labeled with their non-SI units (for example, a GPS sensor that is reporting numbers that represent feet instead of meters). This allows software to use the unit symbol information correctly convert and scale the raw data of those sources into SI-based units. <br/>
Attribute
Public
  none
Details:
Notes: Dimension less quantity, e.g. count, per unit, etc.<br/>
Public
  m
Details:
Notes: Length in meter.<br/>
Public
  kg
Details:
Notes: Mass in kilogram.  Note: multiplier “k” is included in this unit symbol for compatibility with IEC 61850-7-3.<br/>
Public
  s
Details:
Notes: Time in seconds.<br/>
Public
  A
Details:
Notes: Current in Ampere.<br/>
Public
  K
Details:
Notes: Temperature in Kelvin.<br/>
Public
  mol
Details:
Notes: Amount of substance in mole.<br/>
Public
  cd
Details:
Notes: Luminous intensity in candela.<br/>
Public
  deg
Details:
Notes: Plane angle in degrees.<br/>
Public
  rad
Details:
Notes: Plane angle in radian (m/m).<br/>
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  sr
Details:
Notes: Solid angle in steradian (m2/m2).<br/>
Public
  Gy
Details:
Notes: Absorbed dose in Gray (J/kg).<br/>
Public
  Bq
Details:
Notes: Radioactivity in Becquerel (1/s).<br/>
Public
  degC
Details:
Notes: Relative temperature in degrees Celsius.<br/>In the SI unit system the symbol is ºC. Electric charge is measured in coulomb that has the unit symbol C. To distinguish degree Celsius form coulomb the symbol used in the UML is degC. Reason for not using ºC is the special character º is difficult to manage in software.<br/>
Public
  Sv
Details:
Notes: Dose equivalent in Sievert (J/kg).<br/>
Public
  F
Details:
Notes: Electric capacitance in Farad (C/V).<br/>
Public
  C
Details:
Notes: Electric charge in Coulomb (A·s).<br/>
Public
  S
Details:
Notes: Conductance in Siemens.<br/>
Public
  H
Details:
Notes: Electric inductance in Henry (Wb/A).<br/>
Public
  V
Details:
Notes: Electric potential in Volt (W/A).<br/>
Public
  ohm
Details:
Notes: Electric resistance in ohm (V/A).<br/>
Public
  J
Details:
Notes: Energy in joule (N·m = C·V = W·s).<br/>
Public
  N
Details:
Notes: Force in Newton (kg·m/s²).<br/>
Public
  Hz
Details:
Notes: Frequency in Hertz (1/s).<br/>
Public
  lx
Details:
Notes: Illuminance in lux (lm/m²).<br/>
Public
  lm
Details:
Notes: Luminous flux in lumen (cd·sr).<br/>
Public
  Wb
Details:
Notes: Magnetic flux in Weber (V·s).<br/>
Public
  T
Details:
Notes: Magnetic flux density in Tesla (Wb/m2).<br/>
Public
  W
Details:
Notes: Real power in Watt (J/s). Electrical power may have real and reactive components. The real portion of electrical power (I²R or VIcos(phi)), is expressed in Watts. (See also apparent power and reactive power.)<br/>
Public
  Pa
Details:
Notes: Pressure in Pascal (N/m²). Note: the absolute or relative measurement of pressure is implied with this entry. See below for more explicit forms.<br/>
Public
  m2
Details:
Notes: Area in square metre (m²).<br/>
Public
  m3
Details:
Notes: Volume in cubic metre (m³).<br/>
Public
  mPers
Details:
Notes: Velocity in metre per second (m/s).<br/>
Public
  mPers2
Details:
Notes: Acceleration in metre per second squared (m/s²).<br/>
Public
  m3Pers
Details:
Notes: Volumetric flow rate in cubic metres per second (m³/s).<br/>
Public
  mPerm3
Details:
Notes: Fuel efficiency in metre per cubic metre (m/m³).<br/>
Public
  kgm
Details:
Notes: Moment of mass in kilogram metre (kg·m) (first moment of mass). Note: multiplier “k” is included in this unit symbol for compatibility with IEC 61850-7-3.<br/>
Public
  kgPerm3
Details:
Notes: Density in kilogram/cubic metre (kg/m³). Note: multiplier “k” is included in this unit symbol for compatibility with IEC 61850-7-3.<br/>
Public
  WPermK
Details:
Notes: Thermal conductivity in Watt/metre Kelvin.<br/>
Public
  JPerK
Details:
Notes: Heat capacity in Joule/Kelvin.<br/>
Public
  ppm
Details:
Notes: Concentration in parts per million.<br/>
Public
  rotPers
Details:
Notes: Rotations per second (1/s). See also Hz (1/s).<br/>
Public
  radPers
Details:
Notes: Angular velocity in radians per second (rad/s).<br/>
Public
  VA
Details:
Notes: Apparent power in Volt Ampere (See also real power and reactive power.)<br/>
Public
  VAr
Details:
Notes: Reactive power in Volt Ampere reactive. The “reactive” or “imaginary” component of electrical power (VIsin(phi)). (See also real power and apparent power).<br/>Note: Different meter designs use different methods to arrive at their results. Some meters may compute reactive power as an arithmetic value, while others compute the value vectorially. The data consumer should determine the method in use and the suitability of the measurement for the intended purpose.<br/>
Public
  cosPhi
Details:
Notes: Power factor, dimensionless.<br/>Note 1: This definition of power factor only holds for balanced systems. See the alternative definition under code 153.<br/>Note 2 : Beware of differing sign conventions in use between the IEC and EEI. It is assumed that the data consumer understands the type of meter in use and the sign convention in use by the utility.<br/>
Public
  Vs
Details:
Notes: Volt second (Ws/A).<br/>
Public
  V2
Details:
Notes: Volt squared (W²/A²).<br/>
Public
  As
Details:
Notes: Ampere seconds (A·s).<br/>
Public
  A2
Details:
Notes: Ampere squared (A²).<br/>
Public
  A2s
Details:
Notes: Ampere squared time in square ampere (A²s).<br/>
Public
  VAh
Details:
Notes: Apparent energy in Volt Ampere hours.<br/>
Public
  Wh
Details:
Notes: Real energy in Watt hours.<br/>
Public
  VArh
Details:
Notes: Reactive energy in Volt Ampere reactive hours.<br/>
Public
  VPerHz
Details:
Notes: Magnetic flux in Volt per Hertz.<br/>
Public
  HzPers
Details:
Notes: Rate of change of frequency in Hertz per second.<br/>
Public
  character
Details:
Notes: Number of characters.<br/>
Public
  charPers
Details:
Notes: Data rate (baud) in characters per second.<br/>
Public
  kgm2
Details:
Notes: Moment of mass in kilogram square metre (kg·m²) (Second moment of mass, commonly called the moment of inertia). Note: multiplier “k” is included in this unit symbol for compatibility with IEC 61850-7-3.<br/>
Public
  dB
Details:
Notes: Sound pressure level in decibel. Note:  multiplier “d” is included in this unit symbol for compatibility with IEC 61850-7-3.<br/>
Public
  WPers
Details:
Notes: Ramp rate in Watt per second.<br/>
Public
  lPers
Details:
Notes: Volumetric flow rate in litre per second.<br/>
Public
  dBm
Details:
Notes: Power level (logrithmic ratio of signal strength , Bel-mW), normalized to 1mW. Note:  multiplier “d” is included in this unit symbol for compatibility with IEC 61850-7-3.<br/>
Public
  h
Details:
Notes: Time, hour = 60 min = 3600 s.<br/>
Public
  min
Details:
Notes: Time, minute  = 60 s.<br/>
Public
  Q
Details:
Notes: Quantity power, Q.<br/>
Public
  Qh
Details:
Notes: Quantity energy, Qh.<br/>
Public
  ohmm
Details:
Notes: resistivity, Ohm metre, (rho).<br/>
Public
  APerm
Details:
Notes: A/m, magnetic field strength, Ampere per metre.<br/>
Public
  V2h
Details:
Notes: volt-squared hour, Volt-squared-hours.<br/>
Public
  A2h
Details:
Notes: ampere-squared hour, Ampere-squared hour.<br/>
Public
  Ah
Details:
Notes: Ampere-hours, Ampere-hours.<br/>
Public
  count
Details:
Notes: Amount of substance, Counter value.<br/>
Public
  ft3
Details:
Notes: Volume, cubic foot.<br/>
Public
  m3Perh
Details:
Notes: Volumetric flow rate, cubic metre per hour.<br/>
Public
  gal
Details:
Notes: Volume, US gallon (1 gal = 231 in3 = 128 fl ounce).<br/>
Public
  Btu
Details:
Notes: Energy, British Thermal Unit.<br/>
Public
  l
Details:
Notes: Volume, litre = dm3 = m3/1000.<br/>
Public
  lPerh
Details:
Notes: Volumetric flow rate, litre per hour.<br/>
Public
  lPerl
Details:
Notes: Concentration, The ratio of the volume of a solute divided by the volume of  the solution. Note: Users may need use a prefix such a ‘µ’ to express a quantity such as ‘µL/L’.<br/>
Public
  gPerg
Details:
Notes: Concentration, The ratio of the mass of a solute divided by the mass of  the solution. Note: Users may need use a prefix such a ‘µ’ to express a quantity such as ‘µg/g’.<br/>
Public
  molPerm3
Details:
Notes: Concentration, The amount of substance concentration, (c), the amount of solvent in moles divided by the volume of solution in m³.<br/>
Public
  molPermol
Details:
Notes: Concentration, Molar fraction (?), the ratio of the molar amount of a solute divided by the molar amount of the solution.<br/>
Public
  molPerkg
Details:
Notes: Concentration, Molality, the amount of solute in moles and the amount of solvent in kilograms.<br/>
Public
  sPers
Details:
Notes: Time, Ratio of time Note: Users may need to supply a prefix such as ‘µ’ to show rates such as ‘µs/s’<br/>
Public
  HzPerHz
Details:
Notes: Frequency, Rate of frequency change  Note: Users may need to supply a prefix such as ‘m’ to show rates such as ‘mHz/Hz’.<br/>
Public
  VPerV
Details:
Notes: Voltage, Ratio of voltages Note: Users may need to supply a prefix such as ‘m’ to show rates such as ‘mV/V’.<br/>
Public
  APerA
Details:
Notes: Current, Ratio of Amperages  Note: Users may need to supply a prefix such as ‘m’ to show rates such as ‘mA/A’.<br/>
Public
  VPerVA
Details:
Notes: Power factor, PF, the ratio of the active power to the apparent power. Note: The sign convention used for power factor will differ between IEC meters and EEI (ANSI) meters. It is assumed that the data consumers understand the type of meter being used and agree on the sign convention in use at any given utility.<br/>
Public
  rev
Details:
Notes: Amount of rotation, Revolutions.<br/>
Public
  kat
Details:
Notes: Catalytic activity, katal = mol / s.<br/>
Public
  JPerkg
Details:
Notes: Specific energy, Joule / kg.<br/>
Public
  m3Uncompensated
Details:
Notes: Volume, cubic metre, with the value uncompensated for weather effects.<br/>
Public
  m3Compensated
Details:
Notes: Volume, cubic metre, with the value compensated for weather effects.<br/>
Public
  WPerW
Details:
Notes: Signal Strength, Ratio of power  Note: Users may need to supply a prefix such as ‘m’ to show rates such as ‘mW/W’.<br/>
Public
  therm
Details:
Notes: Energy, Therm.<br/>
Public
  onePerm
Details:
Notes: Wavenumber, reciprocal metre,  (1/m).<br/>
Public
  m3Perkg
Details:
Notes: Specific volume, cubic metre per kilogram, v.<br/>
Public
  Pas
Details:
Notes: Dynamic viscosity, Pascal second.<br/>
Public
  Nm
Details:
Notes: Moment of force, Newton metre.<br/>
Public
  NPerm
Details:
Notes: Surface tension, Newton per metre.<br/>
Public
  radPers2
Details:
Notes: Angular acceleration, radian per second squared.<br/>
Public
  WPerm2
Details:
Notes: Heat flux density, irradiance, Watt per square metre.<br/>
Public
  JPerkgK
Details:
Notes: Specific heat capacity, specific entropy, Joule per kilogram Kelvin.<br/>
Public
  JPerm3
Details:
Notes: energy density, Joule per cubic metre.<br/>
Public
  VPerm
Details:
Notes: electric field strength, Volt per metre.<br/>
Public
  CPerm3
Details:
Notes: electric charge density, Coulomb per cubic metre.<br/>
Public
  CPerm2
Details:
Notes: surface charge density, Coulomb per square metre.<br/>
Public
  FPerm
Details:
Notes: permittivity, Farad per metre.<br/>
Public
  HPerm
Details:
Notes: permeability, Henry per metre.<br/>
Public
  JPermol
Details:
Notes: molar energy, Joule per mole.<br/>
Public
  JPermolK
Details:
Notes: molar entropy, molar heat capacity, Joule per mole kelvin.<br/>
Public
  CPerkg
Details:
Notes: exposure (x rays), Coulomb per kilogram.<br/>
Public
  GyPers
Details:
Notes: absorbed dose rate, Gray per second.<br/>
Public
  WPersr
Details:
Notes: Radiant intensity, Watt per steradian.<br/>
Public
  WPerm2sr
Details:
Notes: radiance, Watt per square metre steradian.<br/>
Public
  katPerm3
Details:
Notes: catalytic activity concentration, katal per cubic metre.<br/>
Public
  d
Details:
Notes: Time, day = 24 h = 86400 s.<br/>
Public
  anglemin
Details:
Notes: Plane angle, minute.<br/>
Public
  anglesec
Details:
Notes: Plane angle, second.<br/>
Public
  ha
Details:
Notes: Area, hectare.<br/>
Public
  tonne
Details:
Notes: mass, “tonne” or “metric  ton” (1000 kg = 1 Mg).<br/>
Public
  bar
Details:
Notes: Pressure, bar (1 bar = 100 kPa).<br/>
Public
  mmHg
Details:
Notes: Pressure, millimeter of mercury (1 mmHg is approximately 133.3 Pa).<br/>
Public
  M
Details:
Notes: Length, nautical mile (1 M = 1852 m).<br/>
Public
  kn
Details:
Notes: Speed, knot (1 kn = 1852/3600) m/s.<br/>
Public
  Vh
Details:
Notes: Volt-hour, Volt hours.<br/>
Public
  Mx
Details:
Notes: Magnetic flux, Maxwell (1 Mx = 10-8 Wb).<br/>
Public
  G
Details:
Notes: Magnetic flux density, Gauss (1 G = 10-4 T).<br/>
Public
  Oe
Details:
Notes: Magnetic field, Œrsted (1 Oe = (103/4p) A/m).<br/>
Public
  WPerA
Details:
Notes: Active power per current flow, watt per Ampere.<br/>
Public
  SPerm
Details:
Notes: Conductance per length (F/m).<br/>
Public
  onePerHz
Details:
Notes: Reciprocal of frequency (1/Hz).<br/>
Public
  VPerVAr
Details:
Notes: Power factor, PF, the ratio of the active power to the apparent power. Note: The sign convention used for power factor will differ between IEC meters and EEI (ANSI) meters. It is assumed that the data consumers understand the type of meter being used and agree on the sign convention in use at any given utility.<br/>
Public
  ohmPerm
Details:
Notes: Electric resistance per length in ohm per metre ((V/A)/m).<br/>
Public
  kgPerJ
Details:
Notes: Weigh per energy in kilogram/joule (kg/J). Note: multiplier “k” is included in this unit symbol for compatibility with IEC 61850-7-3.<br/>
Public
  JPers
Details:
Notes: Energy rate joule per second (J/s),<br/>
Public
  m2Pers
Details:
Notes: Viscosity in metre square / second (m²/s).<br/>
Public
  JPerm2
Details:
Notes: Insulation energy density, Joule per square metre or watt second per square metre.<br/>
Public
  KPers
Details:
Notes: Temperature change rate in Kelvin per second.<br/>
Public
  PaPers
Details:
Notes: Pressure change rate in Pascal per second.<br/>
Object Type Connection Direction Notes
UnitSymbol Enumeration Dependency From  
«enumeration» UnitSymbol Enumeration Dependency From