MEP Electrical

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Introduction - Electrical design and Draughting:


Electrical Design Syllabus for residential & commercial projects upto 33KV voltage level

Electrical Engineering is the branch of engineering science that specializes in the Electrical design, construction, and practical use of electrical systems. Electrical system design deals with analysis and application of Power transmission and Distribution, Lighting systems, telecommunication, fire alarm systems, Closed Circuit Television and Public addressable systems.

General

  • Fundamentals of electrical engineering.
  • Types of electricity
  • Source of electricity
  • Generation, Transmission & distribution of electricity
  • Ohms law
  • Important formulas
  • Working with Artistic Text
  • Alignment
  • Creating Visiting Cards, pamphlet, brochures, banner & all types of design

Electrical design calculations

  • Load & maximum demand calculation
  • Transformer sizing calculation
  • DG 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

Electrical equipments and it’s application used in the installation

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

Major electrical loads used in the installation

  • Lighting load – Internal & external
  • Utility power load
  • HVAC loads like Chillers, Pumps, Fans etc.
  • FF loads like Water transfer pumps, Booster pumps, Fire
  • Lifts (Elevator) load
  • Computer & data centre (Server) loads for office building

Codes & Standards to be followed

  • Indian electricity rules
  • National electrical code of India (NEC)
  • National building code of India (NBC)
  • Applicable standards issued by Bureau of Energy Efficiency (BEE)
  • Institute of Electrical & Electronics Engineers (IEEE)

Means of electrical distribution for installation

  • Panels(HT/LT)/Switch Board/Distribution boards (DB’s)
  • Cable trays, conduits & underground Pipes (Concrete/PVC)

Various design stages & Sequence of electrical design procedure

Concept design stage

  • Understanding the building plans, elevations & sections
  • 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 equipment layouts like Substation, plant rooms
  • Preparation of fixture conduit layouts
  • Preparation of technical specification

Detailed design stage

  • Preparation of bill of quantities(BOQ)
  • Issue for tender

Construction design stage

  • Execution of shop drawings based on the tender drawings issued by Electrical consultants for installation
  • After installation the entire installation shall be tested & commissioned with the respective authorities
  • As built drawings shall be prepared and handed over to client’s representative

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