Panel Schedule Labels

[Anonymous]

I have a panel schedule I have been using and note that across the top the following labels or categories:

BUS NUMBER:       AMPERE RATING;          VOLTAGE (L-L):       PHASE:

I am using for instance a MLO family of panelboards, 208 3PH, 4W, MLO, 225A, SURFACE MOUNT.

The top row is not filled out with any data.

In the labels below the top line I have;

Location:                            Volts: 120/2008 Wye            AIC Rating;

Supply From:                       Phase: 3                               Mains Type:

Mounting: Surface              Wires: 4                               Mains Rating: 100A

Enclosure: Type 1                                                            MCB rating:

Q1: Why is there nothing filled out in the top line?

Q2: If the family is a MLO family why isn't "MLO" filled out for "Mains Type?  When I try to fill it in warning states that all panelboards of this type will be changed.

I selected a 225 amp rated panelboard from this MLO, Surface mount family.  Why does " Mains Rating" have 100A?

I am curious about the BUS number.  Have done some searching but could only find discussions about bus duct.

Thanks.

[rudi.roux · Accepted solution]

Hi @Anonymous, 

I attached a sample for you, it is a Revit 2016 Project File. This could be used to go through some of the things which I'll mention below. You can also have a look at this post regarding some PANEL PROPERTIES

The reason why your Location Field is empty is most likely because, [1] a space was not created or assigned by the architect if you are working with a linked model OR [2] your Panel Room Calculation Point is not located or referring to the inside of the space. 

If you created a space then maybe just flip your Panel, then the Panel should assign a Location in your Panel Schedule. 

The reason why your Supply From field is empty is because a Panel generally feeds from another panel or in this example the MAIN-DB-PANEL, so you'll need to select the SUB-DB-PANEL and assign it to the MAIN-DB-PANEL and you can go on where the main panel feeds from a transformer and so on. 

You can assign a MCB Rating and Mains Rating by either changing the Family Type settings or you could change the Electrical - Circuiting per panel as shown in the two examples below. The AIC Rating (Short Circuit Rating) can be added manually or it is specified by the Panel Manufacturer. We do the calculations ourselves with 3rd Party software. 

I hope this helps and serves as a solution for you, if there is anything else, please do not hesitate to ask! 

[Anonymous]

The only place I can change "Mains Type" is to change it from "Edit Type" for the panelboard then it applies to all panelboards of that type. This is fine but since it is an MLO family of panelboards just seems that would be filled out for you. Changing "Mains Rating" is easy enough from the panel properties. I was just curious with that one too since I selected a MLO 225A rated family seems it would be part of the properties. But I understand where to change it now. Still not sure about that top line of the schedule: BUS NUMBER: AMPERE RATING: VOLTAGE (L-L) PHASE: What are those for? Your sample did not include those. Thanks.

[rudi.roux · Accepted solution]

Hi @Anonymous, 

That is correct, the only place where you could change the "Mains Type" is under the Family Type Properties, well this is the quick way otherwise additional parameters could be added. I'm glad that you managed to finish/update your panel and that you now understand where the rest of the data comes from. 

Regarding your other queries, apologies, they slipped my mind when compiling my previous mail. 

A good starting point would be to look at your Panel Templates. The data which you listed in your posts which you are still a bit unsure of do not appear in the default panel templates. So, this means that someone might have created the panel template and it is possible that they didn't assign the parameters correctly or they might merely be manual text parameters. 

To create/manage your panel templates, go to Manage >> Panel Schedule Templates >> Edit a Template and select any of the options/panel  and click "Open".

This will then typically bring up the template with all of the parameters assigned to it, this is also where you can see if the correct parameters are associated with the panel template. 

Above is an example of the default panel template and parameters. Would it be possible to share a screenshot of your panel template so that I could just have a look at your parameters? 

Herewith a brief explanation of each of the queries which you currently have: 

BUS NUMBER: This refers to the "Bus Duct or Bus Bar" within the Panel, I would like to have a look at the Parameter added here as this could also refer to a couple of things... 

AMPERE RATING: I assume the "Total Connected Current" parameter was used here. 

VOLTAGE (L-L): This is the Line to Line Voltage. The voltage between the two legs (called phase to phase or line to line) is e.g. - 208V and the phase to neutral voltage is 120V. The 120/208 notation identifies the phase to neutral voltage followed by the phase to phase voltage.

PHASE: The Phase of the system e.g. - Single Phase or Three Phase. (Found under the electrical settings as well). 

I hope this helps! 

[Anonymous · Accepted solution]

Thanks. You were right. Those fields at.the top were added by someone whon created.our templates.

[rudi.roux · Accepted solution]

Hi @Anonymous, 

Hope you are well. Which post/s served as a solution for you to your original query? 

I'll refer to THIS POST which explains why a relevant post should be accepted as a solution. 

I hope this helps!