APLUS MEP CENTER| Electrical

Electrical

For all building construction or remodeling building projects, the owner or occupant must first have a concept for the new design, and then the architect or designer can produce a set of building plans. These plans convey all the required information to the local inspection authority and associated building trades so that the construction or remodeling can take place. Because commercial and industrial buildings contain a number of electrical systems, these plans include specific electrical designs and additional documentation to verify that the design conforms to all required building codes. The Design Process: An electrical design goes through several important stages of development. First, the designer must understand the scope of the project. Then, the designer defines and designs each component (such as general office areas, specialized machinery, and power distribution equipment) to recognized industry standards. Finally, these individual components are compiled to form the final presentation for the design.

ELECTRICAL BASICS

❖ Introduction to Electrical
❖ Electrical Basics
❖ Electricity-Generation, Transmission & Distribution
❖ Electrical Equipment’s-Transformer, Motor, Generator, UPS etc.
❖ Codes & Standards – NBC, BS, NEC, DEWA.

ELECTRICAL ACCESSORIES

❖ Switches-one way, 2 way, 3 way, etc
❖ Measuring Instruments
❖ Sockets or Receptacle
❖ Ring circuit
❖ Wiring connections in residential & commercial projects
❖ Panel wiring connections

LIGHTING SYSTEM

❖ Introduction
❖ Types of Light Fixtures
❖ LUX or Foot Candle measurement
❖ LUX Level as per Project
❖ Light Fixtures calculation as per Standards
❖ Standard method of lighting placement in project
❖ Preparation of Light fixture schedule
❖ Light Fixture Selection Software’s – CG-LUX, DIALUX & DIALUX EVO.

LOAD CALCULATION & DISTRIBUTION

❖ Light Fixtures load calculation
❖ Fan load calculation
❖ HVAC load calculation
❖ Plumbing & Fire Fighting load calculation
❖ Lift load calculation as per project requirement
❖ Preparation of load schedule
❖ Maximum Demand Load & Total load calculation
❖ Diversity Factor & its Standards
❖ Load distribution of Lighting & power
❖ Load distribution schedule – HVAC, Fire Fighting, common Loads, MDB, SMDB & FDB
❖ Load distribution schedule of Emergency devices- DG & UPS.

CABLES SELECTION & INSTALLATION

❖ Cables- armored & un armored cables
❖ Cable Insulation
❖ Cable type & construction features
❖ Cable selection
❖ Cable Routing
❖ Current rating of cables
❖ Cable size calculation for motors
❖ Voltage drop Calculation of Cables
❖ Application of cable gland & types
❖ Cable schedule Preparation
❖ Cable resistance & impedance values
❖ Cable Lug & its Applications
❖ Calculation of short circuit withstand capacity of cables
❖ Installation of cables
❖ Conduits – types & application
❖ Conduit selection
❖ Installation method of conduits
❖ Cable trays-types, installation procedure, different sizes of cable trays
❖ Fittings & Accessories of Cable tray
❖ Cable tray sizing calculation
❖ Cable tray Routing

SWITCH GEAR & PROTECTION

❖ Transformer & its Application
❖ Types of Transformers
❖ Transformer sizing calculation based on project load
❖ Installation standards of Transformer
❖ Transformer placement in the project
❖ Generator & its Application
❖ Types of Generators
❖ Generator sizing calculation
❖ Wiring connections of Generator
❖ UPS & its application
❖ Types of UPS
❖ UPS designing for emergency loads
❖ Wiring connections of UPS
❖ Battery Sizing calculation
❖ Capacitor bank function

ELECTRICAL EQUIPMENTS & SELECTION

❖ Introduction
❖ Types of Fault currents
❖ Importance of Breaker
❖ Types of circuit breakers – MCB, MCCB, ACB, VCB, SF6, ELCB or RCD
❖ Selection circuit breaker on Feeder current rating
❖ Short circuit calculation
❖ Installation standards of Circuit Breakers
❖ Disconnect switches & Isolators
❖ Isolator Size calculation
❖ Switch gear Application & types
❖ LT & HT panels
❖ ATS & COS panel
❖ MDB, SMDB, FDB
❖ MCC (Motor Control Centre) panel
❖ Bus bar & its function
❖ Bus bar sizing calculation
❖ Bus bar risers
❖ Bus bar wiring connection & its installation

SWITCH GEAR & PROTECTION

❖ Introduction
❖ Types of Fault currents
❖ Importance of Breaker
❖ Types of circuit breakers – MCB, MCCB, ACB, VCB, SF6, ELCB or RCD
❖ Selection circuit breaker on Feeder current rating
❖ Short circuit calculation
❖ Installation standards of Circuit Breakers
❖ Disconnect switches & Isolators
❖ Isolator Size calculation
❖ Switch gear Application & types
❖ LT & HT panels
❖ ATS & COS panel
❖ MDB, SMDB, FDB
❖ MCC (Motor Control Centre) panel
❖ Bus bar & its function
❖ Bus bar sizing calculation
❖ Bus bar risers
❖ Bus bar wiring connection & its installation

EARTHING SYSTEM

❖ Introduction to Earthing
❖ Types of Earthing
❖ Earth continuity conductor
❖ Main earth terminal
❖ Earthing strip
❖ Earth Resistance calculation
❖ Types of Earthing rod & its sizes
❖ Earth pit placement in the project
❖ Lighting Arrestors

SITE INSTALLATION

❖ Electrical Work Flow Procedure
❖ Site Installation Departments
❖ Site Installation Procedures
❖ 3M’s – Material, Machinery, Manpower
❖ Installation Task
❖ Installation of Electrical equipment’s – Transformer, generator, UPS, etc.
❖ Installation of Switch gears
❖ Installation of Cables, Conduit & Cable Tray
❖ Safety Requirement – PPE
❖ Project Handover – O & M

QUANTITY SURVEY

❖ Bill of Quantity – BOQ
❖ Material Submittals – MS
❖ Equipment Schedules
❖ Technical Schedules
❖ Estimation & Costing
❖ Tracking List

QA/QC

❖ Introduction to QA/QC
❖ Short circuit test for breaker
❖ Polarity test
❖ Circuit continuity test
❖ Megger test
❖ Breaker testing
❖ Pre-Inspections of installations
❖ Request for Inspection – RFI
❖ Inspection procedures and techniques
❖ Inspection tools and equipment
❖ Quality control of work as per specification
❖ Testing & Commissioning

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