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New Feeder IDs

Monday, October 10th, 2016

This page describes how feeder IDs were improved in Design Master Electrical 8.4.7 and Design Master Electrical RT 1.1.5.

Previously, feeder IDs were assigned sequentially to feeders in the project based upon ampacity. There were two main problems with this approach:

  1. Feeder IDs were not consistent across projects. A 200A feeder in one project would have a different ID from a 200A feeder in another project.
  2. Feeder IDs would change when a new feeder size was added mid-project. If the new feeder was in the middle of the feeder list, several IDs would change. When issuing revisions, each ID would need to be marked as a change because a new ID was being used, even though the size did not change.

The changes detailed below provide control over the IDs assigned to each feeder size. A default ID for each feeder will be suggested. You have the option to use the default or change it if necessary. There are options to save the ID in the master database and to reuse the ID on other projects.

Current Projects

 

On projects started before the update, the feeder ID options are set to maintain as much consistency with the old method as possible. The IDs of feeders that already exist in the project will remain the same. New IDs will be inserted at the end of the list. These ID will be created automatically.

You will end up with an odd ordering of feeders in the feeder schedule. The feeders will be listed in order based upon the ID. In general, the IDs will be ordered based upon ampacity, but new IDs will be added to the end of the list. See the Sequential format section below for suggestions on how to manage your IDs.

New Projects

 

On newer projects, the feeder ID options are set to take advantage of as many of the new features as possible.

The feeder ID format is set to Short by default. The ID value will be based upon the ampacity of the feeder, along with some extra descriptors based upon the configuration of the wires.

When a new ID is needed, you will be prompted for the name. The ID will be added to the master schedule when it is created.

IDs that already exist in the master schedule will be transferred to the project automatically.

Using New Feeder ID Features on Current Projects

 

To use the new features on an old project, you must make the following changes:

  1. Run the Options command.
    • Ribbon: DME: Customization->Project Customization-> dm_dm-optionP Options
    • Pulldown Menu: DM Electrical->Customization->Options->Edit Project List
  2. In the One-Line Diagram section, find and set the following options:
    1. Feeder ID format: Select the feeder ID format you would like to use. If you are unsure of what to pick, we recommend using Short. See the Feeder ID Formats section below for a description of the other choices.
    2. Automatically create feeder IDs: Set to No.
    3. Copy feeder IDs to master schedule when created: Set to Yes.
    4. Transfer feeder IDs from master schedule if possible: Set to Yes.
  3. Press the OK button to save your changes and close the dialog box.
  4. Run the Insert Feeder Schedule command.
    • Ribbon: DM Electrical->Distribution Equipment-> dm_elec-insertFdrSch Insert Feeder Schedule
    • Pulldown Menu: DM Electrical->Distribution Equipment Schedules->Insert Feeder Schedule
  5. Modify the Feeder ID Block based upon the current setting:
    • dm_elec-feederID-hex2: Change to dm_elec-feederID-hex3
    • dm_elec-feederID-rectangle: Change to dm_elec-feederID-rectangle3
    • dm_elec-feederID-rectangle2: Change to dm_elec-feederID-rectangle3
    • dm_elec-feederID-oval: Change to dm_elec-feederID-oval2
  6. Press the OK button to save your changes and close the dialog box.

For feeder IDs that have already been used in the project, you have two options:

  1. Leave the current feeder IDs as they are. They will be numbered: 1, 2, 3, and so on. Feeders that are added will have IDs based upon the format you chose. The current and added IDs will have different formats. The benefit of this choice is that you will not have to note which IDs have changed. The drawback is that the format will be inconsistent for your IDs.
    • To make this happen, do nothing. It will happen automatically.
  2. Change the current feeder IDs to match the new format. All of your feeder IDs will use the format you selected. The benefit of this choice is that you will have a consistent format for all the IDs in your project. The drawback is that the IDs for any previously created feeders will change. If you have published drawings, you may need to mark all of these IDs as changed in your next revision set.
    • To make this happen, run the Feeder IDs command.
      • Ribbon: DME: Customization->Project Customization-> dm_elec-old-FeederID-P Feeder IDs
      • Pulldown Menu: DM Electrical->Customization->Feeder IDs->Edit Project List
    • Press the Delete Multiple button, then delete all of the IDs.

Feeder ID Formats

 

There are four formats that can be used for the default feeder IDs that are generated.

Short

The Short format uses a compact format that is also descriptive of the feeder.

If you combine the wire count for neutral and hot wires, this format lists the ampacity of the feeder and the number of wires. Feeders with a ground do not have any additional information. Feeders without a ground have “U” added to the end of the ID.

If you separate the wire count for neutral and hot wires, this format lists the ampacity of the feeder. The number of hot wires is listed if it is 1 or 2. Feeders with a neutral or a ground do not have any additional information. Feeders without a neutral have a “D” added to the end of the ID. Feeders without a ground have “U” added to the end of the ID.

Long

The Long format uses a descriptive format for the feeder ID that is meant to be easily understood without referring to the feeder schedule.

First, the feeders are labeled with the ampacity of the feeder.

Next, the number of wires in the feeder is listed. If you combine the wire count for neutral and hot wires, this format lists the combined neutral plus hot wire count. If you do not combine the wire count for neutral and hot wires, this format lists the hot wire count, followed by “N” if a neutral wire is included.

Finally, a “G” is added if there is a ground.

Size + letter

The Size + letter format use lists the ampacity and a single letter. The letter after the ampacity is consistent based upon the type of feeder, but is not intended to be descriptive by itself.

If you combine the wire count for neutral and hot wires, the following letters are used:

  • A: 2 wires, no ground
  • B: 2 wires, ground
  • C: 3 wires, no ground
  • D: 3 wires, ground
  • E: 4 wires, no ground
  • F: 4 wires, ground
  • G+: Other configurations as they come up in a project.

If you do not combine the wire count for neutral and hot wires, the following letters are used:

  • A: 1 hot wire, neutral, no ground
  • B: 1 hot wire, neutral, ground
  • C: 2 hot wires, no neutral, no ground
  • D: 2 hot wires, no neutral, ground
  • E: 2 hot wires, neutral, no ground
  • F: 2 hot wires, neutral, ground
  • G: 3 hot wires, no neutral, no ground
  • H: 3 hot wires, no neutral, ground
  • I: 3 hot wires, neutral, no ground
  • J: 3 hot wires, neutral, ground
  • K+: Other configurations as they come up in a project.

Sequential

The Sequential format uses a number for the ID. The IDs are generally ordered based upon the ampacity of the feeder. After the initial feeders are ordered, any new feeders are added to the end of the list. The IDs are stable during the project, but the list can end up with odd ordering depending upon how feeders are added to the project.

Before the first version of the drawing is published, you can safely delete all of the feeder IDs. A new set of IDs will be created for all feeders that is nicely ordered. New feeders that are added after that will be added out of order.

When the next version of the drawing is to be published, you can delete all of the feeder IDs that have been added. The original IDs will be in order, and the second set of IDs will be in order. This solution keeps IDs that have been published stable in the project. To delete the IDs that need to be updated, run the Feeder IDs command.

Ribbon: DME: Customization->Project Customization-> dm_elec-old-FeederID-P Feeder IDs

Pulldown Menu: DM Electrical->Customization->Feeder IDs->Edit Project List

Press the Delete Multiple button, then select the feeder IDs to be deleted.

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2 Responses to “New Feeder IDs”

  1. Bryant Jenks says:

    There is mention of “combine the wire count for neutral and hot wires” and “do not combine” changes the ID format. I am not sure what that means and how I would change that.

  2. In the electrical options, the “Circuits, Load Types, and Wire Sizes->Display neutral wire count separately from phase wire count” option is what that is referring to.

    Set to “yes”, you get callouts like “3#12, #12N, #12G”.

    Set to “no”, you get callouts like “4#12, #12G”.

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