Codes & Standards to be followed

• Dubai Electricity & Water Authority (DEWA) Regulations
• Abu Dhabi Distribution Company (ADDC) Regulations
• Regulations of Dubai civil defense
• International regulations such as BS, NEC, IEC, NEMA, NFPA

Electrical equipments and their applications used in the installation

• Control devices
• Measuring devices
• Circuit protection devices
• Transformers
• Diesel generators
• Capacitors
• Bus ducts, Busbars, Cables (HT/LT) & wires
• Motors & Pumps
• Isolators & socket outlets
• UPS/Inverter& Battery banks
• Earthing or Grounding
• Building Management Systems(BMS)

Means of electrical distribution for installation

• Panels(HT/LT)/Switch Board/Motor control centers (MCC’s)/Final Distribution boards (DB’s)
• Cable trays, trunking or raceways, conduits & underground ducts

Major electrical loads used in the installation

• Lighting load – Internal & external
• Utility power load
• Mechanical loads like Chillers, AHU’s, FCU’s, Pumps, Fans etc.
• PHE & FF loads like Water transfer pumps, Booster pumps, Firefighting pumps, Jockey pumps etc
• Lifts (Elevator) load
• Computer & data centre (Server) loads for office building

Electrical System design

Lighting system design

• Type of Lighting Fixtures
• Preparation of Fixture Schedule
• Lighting Calculation
• Lux/ FC Requirement
• Calculation on Dialux
• Lighting Layout Design

Power system design

• Types of Power Sockets
• Power Socket Connections
• Selection of Power Socket
• Power System Layout Design

HVAC system design

• Types of Air Conditioners
• Loads for Air Conditioners
• Selection of Disconnection Switch for particular Switch loads for Air Conditioners
• Air Conditioners System layout Design

Selection of Cables and circuit breakers

Cable selection, Sizing & routing

• Cable Selection
• Cable Sizing
• Preparation of Cable Schedule

Circuit breakers

• Type of Circuit Breakers
• Circuit Breaker Selection

Cable Tray Design

• Types of Cable Tray, Cable ladder, Trench etc
• Selection of Cable Tray
• Cable Tray Layout Design

Load Schedule Preparation & Single line diagram(SLD)

Load Schedule Preparation

• Introduction
• Types of DBs, SMDBs & MDBs
• DB Load Balancing & Scheduling

Single line diagram(SLD)

• Introduction
• Lighting SLD
• Power SLD

Electrical design calculations

• Load & maximum demand calculation
• Transformer sizing calculation
• Diesel Generator sizing calculation
• Short circuit calculation
• Voltage drop calculation
• Capacitor sizing calculation
• Cable sizing calculation
• Earthing calculation
• Lighting calculation
• UPS/Inverter sizing calculation
• Battery sizing calculation

Various design stages & Sequence of electrical design procedure

Concept design stage:

• Understanding the building plans, elevations & section;
• Gathering specific data from the utilities(Electricity board)
• Understanding clients specific requirements
• Assessment of the type of installation like outdoor/indoor substation(Point of supply)
• Preparation of basis of design which should include the cost estimate.

Schematic design stage:

• Preparation of Load calculation to arrive maximum peak demand
• Sizing of all Equipments, cables & cable trays
• Electrical design calculations
• Preparation of single line schematic of electrical distribution system with metering options
• Preparation of lighting, small power, earthing & miscellaneous layouts
• Preparation of technical specification

Detailed design stage:

• Preparation of detail layouts including sectional details wherever required
• Coordination with other services like HVAC,PHE & FF layouts
• Preparation of bill of quantities(BOQ)

Construction design stage: (Generally this stage is performed by electrical Contractors)

• Preparation of shop drawings based on the tender drawings issued by electrical consultants for installation.
• Preparation of As built drawings and handing over to client’s representative, after installation,testing & commissioning.

ELV(Low Current) Systems

Closed Circuit Television(CCTV)

• Types of Cameras
• Working & Circuiting
• Selection of Cameras
• CCTV system layout design

Fire Alarm System

• Introduction
• Types of fire alarm systems
• Components of fire alarm system
• System layout design

Electrical Softwares

• AutoCAD
• ETAP Software
• Dialux
• Dialux Evo
• CG Lux
• Excel sheet
• Electrical Current Calculator