This section describes the Set Circuit Information button on the Circuiting dialog box. The Set Circuit Information button is used to set how the circuit length is calculated, the circuit description, and the fixed load types and connections on the circuit.
When you press the Set Circuit Information button, the Set Circuit Information dialog box will appear.
Current Circuit: The selected circuit. Use the Previous and Next buttons to select a different circuit.
Length Calculation
Circuit Length Calculation Method: Sets how the circuit length is calculated. The values you can set vary depending upon the setting of this field.
| • | Default: The default calculation method for the project. The default Circuit length calculation method setting can be changed in the Distribution Equipment options section. |
| • | Right Angles: Calculate the circuit length using line segments at right angles to one another. The direction of the segments is determined by the Building Angle. |
| • | Straight Line: Calculate the circuit length using a straight line. |
| • | Custom: Set the circuit length manually. |
Average Circuit Length: The calculated average length of the circuit to each device in feet and inches. This can be set manually when Circuit Length Calculation Method is set to Custom.
Building Angle: Sets the building angle relative to the alignment point when Circuit Length Calculation Method is set to Right Angles. The default Building angle setting can be changed in the Distribution Equipment options section. See the How Building Angle Affects Calculations article in the knowledge base for more information about this setting.
Farthest Device Length: The length of the circuit to the farthest device in feet and inches.
Make-Up
Branch Circuit Make-Up: The extra length of wire included in branch circuit lengths to account for branch circuit connections. It is used in the fault calculation, voltage drop calculation, and takeoffs.
| • | Default: The default make-up length for the distribution equipment. This value can be changed in the Schedule and Length Settings dialog box for the distribution equipment. |
| • | Custom: Set the make-up length manually. |
Add Branch Circuit Make-Up For Each Device: Whether the length specified in Branch Circuit Make-Up is added for each device on the circuit.
| • | Default: The default setting for the distribution equipment. This setting can be changed in the Schedule and Length Settings dialog box for the distribution equipment. |
| • | Yes: The make-up added to the branch circuit length is multiplied for each device on the circuit. |
| • | No: The make-up is only added to the branch circuit length once, regardless of the number of devices on the circuit. |
Circuit Description Prefix: Text that is added before the circuit description in the Circuiting dialog box.
Circuit Description Suffix: Text that is added after the circuit description in the Circuiting dialog box.
Circuit Description Replacement: Text that overrides the circuit description in the Circuiting dialog box. This will also override the Circuit Description Prefix and Circuit Description Suffix.
Fixed Loads
Fixed loads are loads on a circuit that are not associated with a device on a drawing and must be specified manually. Loads are input in kVA. Existing loads are often modeled using fixed loads. Fixed load values are added to the load of any devices connected to the circuit.
See the Electrical Load Type Explanations article on the knowledge base for more information about each load type and when it should be used. See the Inserting Fixed Loads Without Using the Mouse article in the knowledge base for keyboard shortcuts available for entering fixed loads.
Lighting: Sets the fixed lighting load on the circuit.
Largest Motor: Sets the fixed largest motor load on the circuit. If a circuit has multiple motors connected to it, specify the load of the largest motor here. This will not necessarily be the largest motor on the distribution equipment or in the project. When the load on a distribution equipment is calculated, the largest of all of the largest motor loads will be used as the largest motor on the distribution equipment.
Other Motors: Sets the fixed other motor loads on the circuit. This load can represent multiple motors. The total can be larger than the largest motor. If a largest motor load is included on the circuit, this value will always be added to the other motors load for all of the distribution equipment it is connected to. If no largest motor load is included on the circuit, this value is treated as the largest motor load.
Receptacles: Sets the fixed non-dwelling receptacle load on the circuit.
Continuous: Sets the continuous load on the circuit.
Heating: Sets the fixed space-heating load on the circuit.
Cooling, Largest Motor: Sets the fixed load for the largest motor used for cooling on the circuit. If a circuit has multiple motors connected to it, specify the load of the largest motor here. This will not necessarily be the largest motor on the distribution equipment or in the project. When the load on a distribution equipment is calculated, the largest of all of the largest motor loads will be used as the largest motor on the distribution equipment.
Cooling, Other Motors: Sets the fixed loads for other motors used for cooling on the circuit. This load can represent multiple motors. The total can be larger than the largest motor. If a largest motor load is included on the circuit, this value will always be added to the other motors load for all of the distribution equipment it is connected to. If no largest motor load is included on the circuit, this value is treated as the largest motor load.
Heating and Cooling Motor: Sets the fixed heating and cooling motor load on the circuit.
Noncontinuous: Sets the noncontinuous load on the circuit.
Kitchen: Sets the fixed kitchen load on the circuit.
Kitchen (Multiplier): Sets the number of pieces of kitchen equipment on the circuit. The kitchen demand factor in NEC Table 220.56 is based upon the number of pieces of kitchen equipment.
Diversified: Sets the fixed diversified load on the circuit.
Diversified (Multiplier): Sets the multiplier for the calculated load of the diversified load.
Custom Load 1: Sets the fixed connected load for Custom Load Type 1 on the circuit. The label on the dialog box will match the Custom Load Type 1 Name option. See the Circuits, Load Types, and Wire Sizes options section for more information.
Custom Load 1 (Demand): Sets the fixed calculated load for Custom Load Type 1 on the circuit. This field is enabled if the Custom Load Type 1 Calculation method option is set to Variable calculated load.
Custom Load 1 (Multiplier): Sets the demand factor used to calculate the calculated load for Custom Load Type 1 on the circuit. This field is enabled if the Custom Load Type 1 Calculation method option is set to Variable calculated load.
Custom Load 2: Sets the fixed load for Custom Load Type 2 on the circuit. The label on the dialog box will match the Custom Load Type 2 Name option. See the Circuits, Load Types, and Wire Sizes options section for more information.
Custom Load 2 (Demand): Sets the fixed calculated load for Custom Load Type 2 on the circuit. This field is enabled if the Custom Load Type 2 Calculation method option is set to Variable calculated load.
Custom Load 2 (Multiplier): Sets the demand factor used to calculate the calculated load for Custom Load Type 2 on the circuit. This field is enabled if the Custom Load Type 2 Calculation method option is set to Variable calculated load.
Small Appliance: Sets the fixed small appliance load on the circuit.
Laundry: Sets the fixed laundry load on the circuit.
Appliance, Continuous: Sets the continuous load for appliances fastened in place on the circuit.
Appliance, Continuous (Multiplier): Sets the number of continuous appliances on the circuit.
Appliance, Noncontinuous: Sets the noncontinuous load for appliances fastened in place on the circuit.
Appliance, Noncontinuous (Multiplier): Sets the number of noncontinuous appliances on the circuit.
Appliance Motor: Sets the fixed load for appliances that are also motors on the circuit.
Electric Dryer: Sets the fixed electric dwelling unit dryer load on the circuit.
Electric Dryer (Multiplier): Sets the number of electric dwelling unit dryers on the circuit.
Electric Cooking: Sets the fixed household electric cooking appliance load on the circuit.
Electric Dryer (Multiplier): Sets the number of pieces of household electric cooking appliances on the circuit.
Dwelling Unit Heating: Sets the fixed dwelling unit space-heating load on the circuit.
Heating (Multiplier): Sets the number of pieces of heating equipment on the circuit.
Dwelling Unit Cooling, Largest Motor: Sets the fixed load for the largest motor used for cooling a dwelling unit on the circuit. If a circuit has multiple motors connected to it, specify the load of the largest motor here. This will not necessarily be the largest motor on the distribution equipment or in the project. When the load on a distribution equipment is calculated, the largest of all of the largest motor loads will be used as the largest motor on the distribution equipment.
Dwelling Unit Cooling, Other Motors: Sets the fixed loads for other motors used for cooling a dwelling unit on the circuit. This load can represent multiple motors. The total can be larger than the largest motor. If a largest motor load is included on the circuit, this value will always be added to the other motors load for all of the distribution equipment it is connected to. If no largest motor load is included on the circuit, this value is treated as the largest motor load.
Dwelling Unit Heating and Cooling Motor: Sets the fixed dwelling unit heating and cooling motor load on the circuit.
Marina / Mobile Home / RV: Sets the fixed load for marina receptacles, mobile home lots, or RV sites on the circuit.
Marina / Mobile Home / RV (Multiplier): Sets the number of receptacles, lots, or sites on the circuit.
Clear Circuit Descriptions and Loads: Clears all fixed loads and description fields for the circuit.
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Circuit length calculation method: Sets the default for the Circuit Length Calculation Method setting. Building angle: Sets the default value for the Building Angle field. Custom Load Types 1 and 2: Configures settings for Custom Load Type 1 and Custom Load Type 2. |