When creating an electrical family parameter, specify the parameter type in the Parameter Properties dialog.
In the Family Editor, click Create tab
Properties panel 
(Family Types). In the Family Types dialog, under Parameters, click Add. For Discipline, select Electrical. For Type of Parameter, select one of the following.
Properties panel (Family Types). In the Family Types dialog, under Parameters, click Add. For Discipline, select Electrical. For Type of Parameter, select one of the following. | Name | Description |
|---|---|
| Current | The flow of electric charge. |
| Electrical Potential | Used to control input/output units for Electrical Potential. |
| Frequency | Used to express the number of cycles per second for alternating current power. |
| Illuminance | Luminous flux incident on a surface, per unit area. |
| Luminance | Intensity per unit area of light travelling in a given direction. |
| Luminous Flux | Measure of the perceived power of light. |
| Luminous Intensity | Wavelength-weighted power emitted by a light source in a particular direction per unit solid angle. |
| Efficacy | A measure of how well a light source produces visible light, used in light source initial intensity settings. |
| Wattage | The rate at which electric energy is transferred. |
| Color Temperature | Used as an input to defining Initial Color of a light source. |
| Power | The rate at which electric energy is transferred. |
| Apparent Power | The current multiplied by the electrical potential in AC systems. |
| Power Density | The amount of power per area. |
| Electrical Resistivity | Used for materials. |
| Wire Diameter | Used to format conductor diameter dimension. |
| Temperature | Used for ambient temperature on the wire types, used for wire sizing. Temperature parameters perform unit conversions as absolute temperatures, for example, 0 °F = 32 °C = 273.15 K = 491.67 °R. |
| Temperature Difference | Used to define differences between temperatures. Temperature Difference parameters perform unit conversions as relative temperatures, for example, 18 °F = 18 °R = 10 °C = 10 K. |
| Cable Tray Size | Used to control input/output units for cable tray. |
| Conduit Size | Used to control input/output units for conduit. |
| Demand Factor | Use to adjust the connected load to a demand load. |
| Number of Poles | Used to define the number of line conductors at a connection. |
| Load Classification | Used to group electrical loads for load calculations. |