• Revit

Create connection using feed through lugs

Understand the difference between feed through lugs and breakers.


00:04

Feed through lugs for electrical equipment appeared in the 2020 release of rev.

00:09

It provides the option of connection between panel boards without the use

00:13

of a breaker and can give a more accurate account of connections,

00:16

loads and distribution within your project.

00:20

In this project, we will add equipment to an electrical room,

00:23

create lighting circuits and then review the connection

00:27

options when creating circuits between panel boards.

00:30

Finally,

00:31

we will create a news panel schedules to understand the difference between

00:35

creating circuits using feed two logs and connection to a breakup.

00:41

First use the create similar option from the right mouse button menu

00:46

to add another panel board into the electrical room.

00:49

Ensure tag on placement is selected,

00:53

then edit the tag to LP two

00:59

from the project browser. Open the view one lighting

01:04

then create a circuit for the lighting fixtures in the

01:07

three rooms to the lower right of the floor plan

01:11

and connect to LP two

01:16

from the analyzed tab of the ribbon. Create a panel schedule for LP two.

01:22

A review of the panel schedule shows the circuit

01:25

created and the circuit numbering that starts from one

01:31

next. We will connect panel board, LP two to LP one.

01:37

If there are available slots, you can choose whether to connect to a breaker,

01:41

an LP one or to use the feed through lugs.

01:43

Option.

01:45

If there are no available slots,

01:47

the only option is to use V two logs to make the connection.

01:52

A review of the panel schedule for LP one shows there is capacity.

01:57

So let's go ahead and connect LP two through a breakup.

02:02

Open the view one electrical room,

02:05

select panel board. LP two,

02:09

create the circuit and select LP one from the

02:13

drop down list of available panels to connect to

02:18

when there are available slots,

02:20

you could choose whether a circuit is connected to a breaker

02:24

or the feed through lug at the time of creating it

02:27

or connection type can be changed after it has been created.

02:32

Choose breaker from the drop down list

02:36

from the project browser. Open the panel schedule for LP one

02:41

here we can see LP two connected and its loads totaled on this panel schedule.

02:46

Again, the circuit numbering starting at one.

02:50

Next,

02:51

we'll look at changing the connection type for this circuit to feed through logs.

02:56

Open the view one electrical room

02:59

and select the circuit between LP one and LP

03:03

two using the tab key in the left mouse button

03:07

from the ribbon, change the connection type to feed through lugs.

03:15

A review of the panel schedule for LP One

03:18

shows that LP two is no longer connected to this panel through a breaker.

03:25

Open the panel schedule for LP two,

03:28

the circuit numbering for this panel starts at number one,

03:32

the same as the panel schedule for LP one

03:35

as this panel is fed from LP one.

03:38

We have the option of continuing the circuit numbering

03:42

from the properties of the panel schedule change the

03:46

circuit numbering option from default to continue numbering.

03:52

The circuit numbers have now updated to follow

03:54

on from the circuit numbering of the feeder panel

04:00

feed through lugs allows designers to create a more accurate

04:04

account of the connections and electrical distribution in a project.

04:09

As panel boards are connected,

04:11

the connection type can be set and altered

04:13

afterwards to suit the changing in electrical design.

04:18

The connection type is also reflected in panel schedules providing

04:22

an accurate picture of the total loads on each panel.

Video transcript

00:04

Feed through lugs for electrical equipment appeared in the 2020 release of rev.

00:09

It provides the option of connection between panel boards without the use

00:13

of a breaker and can give a more accurate account of connections,

00:16

loads and distribution within your project.

00:20

In this project, we will add equipment to an electrical room,

00:23

create lighting circuits and then review the connection

00:27

options when creating circuits between panel boards.

00:30

Finally,

00:31

we will create a news panel schedules to understand the difference between

00:35

creating circuits using feed two logs and connection to a breakup.

00:41

First use the create similar option from the right mouse button menu

00:46

to add another panel board into the electrical room.

00:49

Ensure tag on placement is selected,

00:53

then edit the tag to LP two

00:59

from the project browser. Open the view one lighting

01:04

then create a circuit for the lighting fixtures in the

01:07

three rooms to the lower right of the floor plan

01:11

and connect to LP two

01:16

from the analyzed tab of the ribbon. Create a panel schedule for LP two.

01:22

A review of the panel schedule shows the circuit

01:25

created and the circuit numbering that starts from one

01:31

next. We will connect panel board, LP two to LP one.

01:37

If there are available slots, you can choose whether to connect to a breaker,

01:41

an LP one or to use the feed through lugs.

01:43

Option.

01:45

If there are no available slots,

01:47

the only option is to use V two logs to make the connection.

01:52

A review of the panel schedule for LP one shows there is capacity.

01:57

So let's go ahead and connect LP two through a breakup.

02:02

Open the view one electrical room,

02:05

select panel board. LP two,

02:09

create the circuit and select LP one from the

02:13

drop down list of available panels to connect to

02:18

when there are available slots,

02:20

you could choose whether a circuit is connected to a breaker

02:24

or the feed through lug at the time of creating it

02:27

or connection type can be changed after it has been created.

02:32

Choose breaker from the drop down list

02:36

from the project browser. Open the panel schedule for LP one

02:41

here we can see LP two connected and its loads totaled on this panel schedule.

02:46

Again, the circuit numbering starting at one.

02:50

Next,

02:51

we'll look at changing the connection type for this circuit to feed through logs.

02:56

Open the view one electrical room

02:59

and select the circuit between LP one and LP

03:03

two using the tab key in the left mouse button

03:07

from the ribbon, change the connection type to feed through lugs.

03:15

A review of the panel schedule for LP One

03:18

shows that LP two is no longer connected to this panel through a breaker.

03:25

Open the panel schedule for LP two,

03:28

the circuit numbering for this panel starts at number one,

03:32

the same as the panel schedule for LP one

03:35

as this panel is fed from LP one.

03:38

We have the option of continuing the circuit numbering

03:42

from the properties of the panel schedule change the

03:46

circuit numbering option from default to continue numbering.

03:52

The circuit numbers have now updated to follow

03:54

on from the circuit numbering of the feeder panel

04:00

feed through lugs allows designers to create a more accurate

04:04

account of the connections and electrical distribution in a project.

04:09

As panel boards are connected,

04:11

the connection type can be set and altered

04:13

afterwards to suit the changing in electrical design.

04:18

The connection type is also reflected in panel schedules providing

04:22

an accurate picture of the total loads on each panel.

Step-by-step guide

Understand the difference between feed through lugs and breakers.

  1. Open the project E02_02.rvt. Ensure the current view is Power > Floor Plans > 1 – Electrical Room.
  2. Select panel board LP-1, right-click, and choose Create Similar.

In the Revit interface, in the 1-Electrical Room view for the project, the context menu for panel board LP-1, with Create Similar selected.

  1. Place the panel board as shown and edit the tag to “LP-2”.

In the plan view, the new panel board placed, with the tag edited to LP-2.

  1. From the Project Browser, open the 1- Lighting view.
  2. Select the lighting fixtures in the three rooms to the lower right, and from the Electrical Circuits tab, Create Systems panel, click Power.
  3. Use the Panel drop-down to create a circuit connected to panel board LP-2.

In the floor plan, selected lighting fixtures in 3 rooms highlighted in red, and in the Panel drop-down, LP-2 selected.

  1. In the Analyze tab of the ribbon, select Panel Schedules.
  2. Ensure LP-2 is selected and click OK.

In the Create Panel Schedules dialog box, panel board LP-2 selected.

  1. Open the view 1 – Electrical Room.
  2. Select panel board LP-2 and create a circuit connected to panel board LP-1.

In the plan view, LP-2 is selected, and in the Panel drop-down, panel board LP-1 is being selected.

  1. Because there are available slots on LP-1, you can choose Breaker or Feed Through Lugs for the Connection Type. Choose Breaker.

The expanded Connection Type drop-down, with Breaker selected.

  1. Open the panel schedule for LP-1, and panel board LP-2 appears at circuit 7 connected through a breaker.

The panel schedule for LP-1 showing panel board LP-2 connected through a breaker at circuit 7.

  1. Open the view 1 – Electrical Room and select the circuit between LP-1 and LP-2 using the TAB key and the mouse button.
  2. In the ribbon, change the Connection Type to Feed Through Lugs.
  3. Open the panel schedule for LP-1 and note that LP-2 is no longer connected through a breaker.

The panel schedule for LP-1 no longer showing panel board LP2 connected through a breaker.

  1. Open the panel schedule for LP-2 and note the circuit numbering. It is connected to LP-1 using feed through lugs, and the circuit numbering for both panels is the same even though they are connected.

The panel schedule for LP-2 showing the circuit numbering starting at 1.

  1. In the properties for panel board LP-2, change the Circuit Numbering Option to Continue Numbering.

In the properties for panel board LP-2, the Circuit Numbering Option set to Continue Numbering.

  1. A final review of the panel schedule for LP-2 shows the circuit numbering now continues from the last circuit number shown on the panel schedule for LP-1.

The panel schedule for LP-2, with the circuit numbering continuing from the last circuit number on the LP-1 panel schedule.

  1. Save the project.
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