Electrical System

Electrical engineering is a very wide field in engineering. As the development in different countries all over the world is increasing, the scope of electrical engineering and the demand for electrical engineers are also increasing.

New buildings are erected as part of the development of the county. “building electrical system” course gives an overview of the procedures involved in the planning, designing, estimation, execution,testing and commissioning of small and big buildings.

The course contents are

Introduction

• Fundamental of electrical engineering
• Role of electrical design engineer in the design of buildings
• Design of simple electrical circuits, list of symbols
• Electrical supply systems
• Domestic wiring
• Voltage systems in different countries
• Auto cad drafting practice
• Understanding the architectural and structural drawings of buildings for the design,coordination and execution of electro mechanical systems

Project principles

• Project organization chart – client, pm, main contractor, e&m contractor,
• Subcontractors, etc…
• Boq, specification and contract drawing
• Various job opportunities for degree holders and technically sound candidates
• Procedure of design and shop drawing
• Standards and codes to be followed in electrical system design (nec, iec, nema, bs tec..)

Lighting design

• Selection of lighting fixtures for different types of applications
• Different types of lamps
• Lux calculation using dialux software
• Preparation of lighting layouts and details
• Arrangement of lighting fixtures, circuiting of light points, switches
• Lighting control systems
• Emergency lighting and exit sign lighting
• External and site lighting

Power design

• Design of power layouts for different types of buildings
• Types of sockets, power sockets, three phase sockets, disconnect switches
• Normal, emergency and ups power circuits
• Equipments power

Load assessmnet

• Lighting load calculation
• Load calculation of general purpose sockets and equipments
• Ahus, chillers, package units, split ac, window ac, fcus, exhaust fans, boiler, water heaters, pumps, elevator, fire pumps loads  connected load, demand factor, demand load, maximum demand

Panel boards

• Branch panels, sub main and main panels
• Preparation of panel board schedules
• Load balancing in panels
• Selection of branch and main circuit breakers, short circuit current
• Circuit breakers – mcb, mccb, rccb, rcbo, acb
• Panel enclosures, busbars, installation of panels
• Mcc panels