Bus Gutter/Bus Duct

To create a bus gutter or a bus duct, go to

DM ElectricalOne Line DevicesBus Gutters/Bus Ducts

A Bus Gutter or Bus Duct dialog box will appear. To actually create a new bus gutter or bus duct, press the New button at the bottom of the dialog box. Another Bus Gutter or Bus Duct dialog box will appear after Design Master asks you to enter the callout for the new bus gutter you are creating.

bus_gutter_oneline

Listed below are all the different fields and inputs found in the dialog box above. These fields all help to define the bus gutter in some way and are divided into three main categories. The first portion focuses on the definition of the bus gutter itself, followed by the fault analysis information, and then the specifications of the bus gutter feeder wires.

General Bus Gutter/Bus Duct Definition

Field	Sets
Total Connected KVA	Displays the current, connected KVA load on the bus gutter.
Total Connected Amps	Displays the current, connected amp load on the bus gutter.
Volts	The voltage and number of poles for the bus gutter.
Bus Amps	The amps rating for the bus gutter.
Mounting	Mounting type for the bus gutter.
Number of Taps	Number of taps in the bus gutter.
Plan View Block	There is only one option available when creating the plan view block, and that is Custom Rectangle. You must define the dimensions for each bus gutter individually.
Custom Dimension	Input for defining customized bus gutter block sizes.
Layer System	Indicates what layering system the bus gutter block will be drawn on.
Schedule Block	Where you can select the bus gutter schedule graphic to associate with the bus gutter. Design Master comes equipped with a schedule block specifically designed for bus gutter.
Location	Field reserved for entering the physical location of the bus gutter in the building.
Note 1	Creates a note in the upper left hand corner of the bus gutter schedule. The note may also be inserted with the bus gutter on the one line diagram.
Note 2	Creates a note immediately below the bus gutter schedule. The note may also be inserted with the bus gutter on the one line diagram.

Fault Analysis

Field	Sets
Feeder Length (ft)	Length of the conductor from the device feeding the bus gutter. Can be automatically calculated by Design Master, or input manually.
Fault @ Bus Gutter (amps)	The fault current at the bus gutter. Can be automatically calculated by Design Master, or input manually.
Tap AIC Rating	This is where you set the AIC Rating for the bus gutter. This is set manually. There is also a field to enter a custom AIC Rating below this one.

Feeder Specification

Field	Sets
Fed From	Displays where the bus gutter is fed from. See the section on One Line Device Connections for more information.
Description in Upstream Device	How this bus gutter appears in the schedule of the device feeding it. Defaults to Bus Gutter Callout, but may be customized.
Upstream OCP	Size of upstream breaker or fuse in the device feeding the bus gutter.
Conductor Amps	Select automatic sizing for the conductors, or use this field to select a specific conductor size
Neutral	Choose to size the neutral wire at 100% or 200% of the phase conductors, select a specific conductor, or have no neutral at all.
Ground	Choose to automatically size the ground per the NEC as a service or equipment ground, or select a specific size.
IG Conductor	Toggle on or off an Isolated Ground conductor.
Conduit Size	Choose to size the conduit automatically, or select a specific conduit size.
Feeder Size	This field displays the conduit and feeder sizes for the bus gutter, based on the settings above.

The New, Copy, Save, Delete, Rename, and Find buttons work as they do for panels.