Latest about EDIS

EDIS generates schematics automatically from the information provided in a EICR

EDIS has many useful features -one of the most exciting is the automatic schematic generation. Using 4 data fields EDIS generates a electrical schematic on a grid- with no CAD or other drawing tools required.

 Automated Schematic Creation in EDIS

This document provides a description of how EDIS generates electrical schematics automatically. 

For example assume the following boards setup results in the schematic below, the table on the left shows the details for some example boards:,

M2 DB is located in Section: NORTH, Floor: 2, and is supplied from M1/DB [1L1]

General information and know rules for to creating any schematic from EDIS or otherwise.

To create a schematic showing how distribution boards are connected, two key pieces of information for each board is required: its physical location and its power source.

The system or can technician can use this information to place the board on the diagram and draw the line connecting it to its supply.

## 🗺️ Defining the Board’s Location

First, you need to tell the system where the distribution board is physically located in the building. This is done by specifying two details:

  • Floor: The level of the building where the board is installed (e.g., Ground Floor, First Floor, Basement).
  • Section/Area: The specific zone or wing on that floor (e.g., North Wing, West Wing, Main Hall).

Think of this as coordinates on a grid. The Floor acts as the vertical (Y-axis) position, and the Section acts as the horizontal (X-axis) position. By providing these two details, you ensure the board is placed in the correct relative position on the schematic, making the diagram logical and easy to read. If you don’t provide a location, the board might be drawn, but it will be isolated and not part of the building’s logical layout.

## ⚡ Defining the Power Source

Next, you must identify exactly how the new board gets its power. This is the most crucial step for drawing the connections. You need to provide the source circuit details, which means specifying:

  • The Source Board: Which distribution board is providing the power?
  • The Circuit Identifier: Which specific circuit (breaker) on that source board is feeding the new board?

For example, the power source might be identified as ‘DB-GF-MAIN, circuit 1L1’.

This information tells the system to draw a line from circuit 1L1 on the board named DB-GF-MAIN directly to the new board you are adding. Without this information, the system can’t draw the connecting line, and your new board will appear isolated on the schematic without a power source.

Finding this information can be tricky and may require physically tracing the supply cable back to its origin board to identify the correct circuit breaker.

Of course. Here is a more concise and professionally worded set of rules for electrical distribution.

## ⚡️ Rules of Electrical Distribution: Phase Matching

The fundamental principle is that the phase configuration of the supply circuit must match the requirements of the downstream distribution board.

### Three-Phase Source Boards

A three-phase distribution board is versatile and can provide power for both three-phase and single-phase loads.

  • It can supply another three-phase board using a three-phase circuit (e.g., via a Triple Pole breaker).
  • It can supply a single-phase board using a single-phase circuit (e.g., via a Single Pole breaker tapping one phase).

### Single-Phase ($1\phi$) Source Boards

A single-phase distribution board has a critical limitation.

  • It can supply another single-phase board.
  • It cannot supply a three-phase board because it cannot provide the necessary three distinct phases.

How this is done in EDIS

OPTION 1 EDIT THE BOARDS IN THE BOARD LIST

  1. Log into EDIS, select the estate and building
  2. Select the Board menu, to list the boards in the building
  3. Select edit board from the dropdown menu options in the Action Column next to the board that you want to update
  4. The edit board screen has multiple tabs, select the Supply and Protection tab
  5. The Supply and Protection tab has tabs:
    1. “Search and Select Supply” – this allows you to lookup the supply board and circuit
    2. “Enter Supply Reference” – this allows you to enter the supply circuit details manually
  • Figure: “Search and Select Supply” – this allows you to lookup the supply board and circuit
  • Figure “Search and Select Supply” –  this allows you to lookup the supply board and circuit

OPTION 2 EDIT THE BOARDS IN THE CERTIFICATE BOARD LIST

This is the same as option 1, in this case the boards are edited in Step 4 of the certificate wizard.

OPTION 3  EDIT THE BOARDS IN EXCEL WORKSHEET

Using the Excel option to enter the supply details, requires a Condition Report  certificate.

  1. Download the certificate using the Export to Excel option
  2. Unzip the file and then right click and unprotect the file to enable Macros
  3. Use the excel worksheet to enter the details in the Section, Floor and details n the Supply details section.
  4. Take care to to match the correct supply distribution board, circuit number and phase:

5. Upload the excel work sheet to EDIS

6. After uploading the excel worksheet, AND completing the certificate, the distribution board schedule will be updated along with the EDIS Schematic.

  • Note: allowed options for Supply Details:
    Dist Board Ref and Board Type: – should match  exactly an existing board  or a new board created in the certificate.
  • Circuit number and phase – Should match an existing board’s circuit, special note on circuit phase value:
    • If the supply circuit is a three phase circuit, the Phase must be “TP”
    • If the supply circuit is a single phase circuit must be L1, L2 or L3