Complete Electrical Design Engineering Course for Beginners

Understand what a light fixture is, an artificial light source that converts electrical energy into light, with switches and power sources, and note Edison’s early lamp design.

Fluorescent lamps produce visible light by ionizing mercury vapor inside a lime glass tube. They use tungsten spiral electrodes coated with fluorescent powder, choke, starter, and capacitor to regulate current.

Explore how incandescent lamps emit light by heating a tungsten filament inside a gas-filled glass bulb, supported by molybdenum wires between two leads; understand wattage and brightness.

Learn how a sodium vapor lamp, an electric discharge lamp, emits orange light by vaporizing sodium with neon and argon in a u-shaped tube, driven by a transformer and capacitor.

Discover mercury vapor lamps, including high and low pressure types, their electrode assembly and insulation, and how vaporized mercury produces visible light via arc heating.

Learn how a light emitting diode works as a semiconductor device that emits light when current flows, and compare indicator and illuminator led lamps for cars, homes, and offices.

Learn about compact fluorescent lamps: their small, efficient design with screw or pin bases, glass sticks or tubular lobes, and longer life up to 10000 hours, not compatible with dimmers.

Explore the types of light fixtures, including recessed, indirect pendant, direct indirect pendant, wall-mounted fixtures, under-cabinet and task lighting, and learn how light distribution and color temperature shape spaces.

The lecture covers domestic, industrial, commercial, and street lighting, interior and exterior areas, and fixtures like recessed, pendant, and surface-mounted lights with compact fluorescent, incandescent, led, and fluorescent lamps.

Explore light fixtures for plane and tile ceilings, including 60 by 60 recessed lights, recessed down lights, pendant, and surface mounted options; note no-ceiling areas use slabs or metal trunks.

Explore emergency light systems in electrical design by distinguishing critical, essential, and non essential loads, and understand maintained and non maintained lights with UPS, central battery systems, and generators.

Explain exit signage and slave luminaires, their role in emergency egress, and the importance of constant illumination under NFPA codes, via central battery or built-in battery systems.

Explore how color rendering index (CRI) measures a light source's accuracy in reproducing colors under daylight, and how artificial light differs, with applications from photography to museums.

Learn how color temperature describes bulb light on a 1000–10000 kelvin scale, where higher kelvin is cooler and lower kelvin warmer, and how it differs from color rendering index.

Explore lumen and luminous flux, showing how electrical energy converts to light and lumens per watt measure efficiency. Learn lux levels, IEC standards, and lighting design such as conference rooms.

Explore the IP rating of a light fixture, two digits signaling dust and water protection, with examples like IP66 and IP68 for indoor, outdoor, and wet environments.

Learn to read a lighting catalogue by examining technical specifications such as system voltage, IP rating, color temperature, lumen output, color rendering index, and mounting options.

Learn to manually calculate required lighting fixtures for a room using room index, lumen output, utilization and maintenance factors, and IEC lux standards, with a practical office example.

Navigate the dialogs software user interface, from the start screen through three columns to create, import, or manage lighting projects using the main toolbar and tabs.

Prepare clean project drawings for electrical design by removing furniture and unnecessary dimensions, turning off layers, and preserving room names; save as a DXF for import.

Import prepared AutoCAD drawings into Dialux by using no IFC, loading the DXF or zip file, and define the x axis before finishing with meters as units.

Learn to draw rooms in Dialux using the draw new room tool, set wall height to 4.57 m, and define inner edge points to create rooms and corridors in 3d.

Learn to add windows to the building by selecting apertures, choosing window types, and drawing openings at edge points for a realistic 3d view.

Learn to add doors and windows in DIALux, and set their dimensions to create building openings. Guide door placement and edge selection for a realistic 3d project view.

Define spaces in Dialux to assign room names, set space height, choose templates, and auto-calculate lux targets and uniformity for offices, pantries, and restrooms.

Add furnitures in DIALux projects and assign materials to each wall and each furniture to influence lighting design and lux calculations, then place, rotate, copy, and size items.

Learn to add color materials and actual materials in DIALux, explain how reflection factors affect lux calculations, and apply materials to walls, furniture, doors, and windows.

Learn to add a ceiling in dialux by drawing a new ceiling, defining corner points, and adjusting height and thickness, then apply ceilings to rooms and view in 3D.

Add light fixtures into dialux by selecting a brand, downloading the product catalog, and using the product selector plugin to place 60 by 60 recessed office fixtures at 4000 kelvin.

Distribute light fixtures in dialux across rooms using automatic and manual arrangements, calculate average lux and uniformity, review false color feedback, and adjust fixtures to meet target lux levels.

Create a complete DIALux documentation package for an electrical design project by selecting pages, adding descriptions, images, and luminaire details, then export as PDF or print for client review.

Export light fixture designs from the dialogue file into an AutoCAD plan, lock the architectural layer, color-code for distinction, and copy fixtures into the original plan using a base point.

Distribute AutoCAD light fixtures for pantry, stairways, and electrical rooms with fluorescent lamps per British standards, and craft a lighting legend to guide washrooms using dialogue software for lux calculations.

Distribute emergency light fixtures in AutoCAD by applying a 25% rule, prioritizing exit doors and using centerline fixtures to illuminate areas.

Learn how to distribute exit signages and slave luminaires in AutoCAD on a new floor plan, placing signage above exit doors and guiding safe evacuation.

Explore the three main types of one way switches—single, two-gang, and three-gang—and learn their wiring, including common terminals and live and neutral connections.

Explore the three main types of two-way switches and how they control one to three light circuits from two locations. Review common and live terminals and basic connection diagrams.

Learn the common switch symbols used in AutoCAD drawings, including one-way, two-way, and three-way switches, with tick marks indicating gang and oc counts, and dimmer symbols for lighting control.

learn to distribute light switches in autocad for an office project, creating blocks for one-way and two-way switches and placing them near the entrance doors and in each area.

Learn how to plan and wire lighting circuits in AutoCAD, place and name distribution boards, set layers, and create clear circuit diagrams with circuit names and two-switch control concepts.

Demonstrates wiring exit signages and slave luminaires in AutoCAD, using two circuits and separate breakers, connecting to the distribution board, and labeling the unified emergency lighting circuit.

Finalize the floor lighting and wiring drawings by cleaning the legend, converting symbols to blocks, and standardizing text. Save the drawings for client submission in AutoCAD 2007.

Learn about three socket types—normal, power, and ac sockets—and their load ranges, from normal sockets up to 2500 watts to ac sockets up to 5000 watts for air conditioners.

Explain ring circuits and radial circuits, showing how live, neutral, and earth run from the distribution board to outlets, how returns differ, and how British standards govern these circuits.

Learn to distribute power, normal, and AC circuits on an AutoCAD floor plan, using a symbols legend to place 13 MP and weatherproof sockets, scale and orient outlets correctly.

Create a socket wiring layer in AutoCAD, draw and connect socket circuits to the distribution board, label them clearly, and ensure main circuits handle ten sockets under British standards.

Finalize electrical drawings by cleaning the legend of unused symbols, updating distribution board symbols, adjusting layouts, and saving the project in AutoCAD 2007 format for client submission.

Identify the main distribution board (IMDB), sub main distribution board (SMB), and distribution board (DB), and show how they distribute power from transformers to sub boards and circuits.

Explore transformer feeds to the main and five sub main distribution boards in a five-story office building. Learn how they interconnect across floors and limit voltage drop to ten metres.

Explore the wiring diagram of a three-base distribution board, tracing connections from the main pole to the sub main board, including blue, yellow, and red bases and energy meters.

Calculate demand factor as maximum demand divided by connected load. Compute diversity factor as the sum of individual maximum demands divided by the wall system, greater than one.

Learn how to balance loads across a three-base distribution board using the load balance percentage formula, ensuring the balance stays at or below 10% with practical examples.

Create a distribution board schedule in excel, detailing panel name, location, main rating, circuit numbers and R, Y, B connections across three bases, with automatic load, demand, and balance calculations.

Define loads for the distribution board schedule by calculating lighting circuits, socket outlets, water heaters, and AC loads, then balance base and y-base to stay under 10%.

Transfer the db schedule into autoCAD by creating an excel data link, loading the schedule, and inserting the linked table into the drawing.