Electrical drafts are the blueprint for electrical systems, serving as the foundational document that transforms ideas into reality. These detailed technical drawings outline the design, layout, and specifications of wiring, circuits, and equipment. This ensures seamless collaboration between engineers, electricians, and builders.

An electrical draft is a detailed visual representation of an electrical system, tailored to the specific requirements of a site or project type. Whether for a building or a factory, it may include various sections.

It’s important to note that not every drawing includes all the sections mentioned, as the requirements depend on the project’s scope and complexity. Typically, electrical drafts start with high-level overviews, such as single-line diagrams, and gradually progress to detailed layouts like wiring schematics and equipment connections. A list of suggested sections for designing an EMS system for a building is provided below

• General Information:
  • Project title, address, and scope.
  • Legend and symbols for meters, communication devices, and connections.
  • General notes on EMS standards and compliance requirements.
• System Overview:
  • High-level diagram of the EMS architecture (e.g., network of meters, data aggregation point, software interface).
  • Description of the metering objectives (e.g., energy monitoring, cost allocation, or compliance).
• Energy Monitoring Zones:
  • Segmentation of building areas or systems for energy monitoring (e.g., lighting, HVAC, or tenant areas).
  • Details on load profiling and energy usage breakdowns
• Power Distribution Diagram and Metering Layout:
  • Single-line diagram highlighting the integration of meters into the power distribution system.
  • Clear indication of metered circuits or loads.
  • Location and type of meters (e.g., single-phase, three-phase, or power quality meters). Meter placement on distribution boards, switchboards, or specific equipment.
• Communication Network:
  • Data flow diagram for meter communication (e.g., RS485, Ethernet, or wireless).
  • Network topology (e.g., daisy chain, star, or mixed).
  • Location of data hubs, repeaters, and gateways and Data Aggregation Points
  • Layout of the central data collection point (e.g., data logger, RevPi, or cloud gateway).
  • Wiring and connectivity details to ensure secure and accurate data transmission
  • Software Integration.
• Equipment Connection Details

Autocad

Layout Space: Layout space in AutoCAD is a paper space environment where users can set up their drawings for printing. It is the space where the user can create multiple layouts for plotting and printing drawings.

Model Space: Model space in AutoCAD is a working space where users can draw and edit objects. All objects created in model space can be seen in all layouts.

Viewport: A viewport is a window within a layout in AutoCAD that provides a view of the model space. It is used to display multiple views of the same drawing in a single layout.

Blocks: A block in AutoCAD is a collection of objects that are combined into a single named object. The objects in a block can be a combination of lines, arcs, circles, text, and other objects. Blocks are used to create standard components that can be inserted into a drawing as a single object, making it easier to create and edit drawings.

1. BLOCK COMMAND FOR CREATING BLOCK
   1- SELECT ALL OBJECTS
   2- SELECT BASEPOINT
   3-SELECT NAME
   4- OPEN IN BLOCK EDITOR (BEDIT)
   5-“ ATT” FOR ADDING ATTRIBUTE
   6-“ATTEDIT” FOR EDITING IT
   7- IF ATTRIBUTE SELECTED IN BLOCK DEFINISTION BLOCK HAS THAT ATTRIBUTE(GOOD FOR ZWCAD)
   8-“I” FOR INSERTING
   9-BATTMAN in command line for editing attribute name
2. Attsync for update block after change block

OSnap: Osnap (Object Snapping) is a feature in AutoCAD that allows users to snap onto specific objects or points within an object to precisely locate a point. This can be used to quickly create objects with precise measurements.

Standard

Although Autocad does not have any direct association with IEC (Eurpian mm), GEN(No Unit) , or JIC(American Inch) standards, the file name shows the related units/standards.

Template

In AutoCAD, a template is a file that acts as a starting point for new drawings. It contains a pre-defined setup of layers, styles, and other drawing data to help you create new drawings quickly and easily. It is essentially a drawing “template” that you can use over and over again. To open a template Choose Open from the Quick Access Toolbar In the Files of type drop-down list, choose Drawing Template.

Project

In AutoCAD Electrical, a Project is a file that contains all the information related to a particular electrical drawing. The Project file stores information such as the drawing name, drawing size and scale, electrical components, and the project settings. It also stores the project’s drawing hierarchy and file structure, as well as any custom settings and templates. We can have more than 1 DWG in our project but Symbol drawing selected for the Project.

Caltalog

In AutoCAD, a catalog is a collection of drawing components that can be used to quickly and easily create drawings. The catalog contains a variety of pre-made components, such as blocks, symbols, and hatch patterns, that can be used in your drawings. You can also create your own custom catalogs to store your own components.

Some Useful Command

GATTE: Change a tag value in all blocks

Qelectrical

• I used inkscape file to convert svg to dxf (v12) and then import dxf into Qelectrical

Symbol

Link

Link

IEC 60617 SYMBOLS