01. Overview EPC Electrical

OVERVIEW EPC ELECTRICAL

Budi Adi Nugroho Asep Sugandi

24-November-2012

SCOPE OF WORK Scope : Engineering, Procurement, Construction

Engineering: Basic Engineering, and

Detail Engineering

Procurement: Purchasing, Expediting, Inspection, Shipping

Construction: Installation, hook-up, commissioning, Startup

Generator

Transformer

150/13.8kV

Aux Trafo 6.3/0.4kV

Generator

circuit breaker

Generator

80MVA

ELECTRICAL SYSTEM ILLUSTRATION

WORKFLOW

Basic Engineering Detail Engineering

Electrical Equipment /

Material Procurement

Construction

Design Cycle

PLANNING

DESIGN

IMPLEMENTATION

- Scope of Work - Schedule - Quality Plan - Area wise / coverage - Inquiry Plan - Document List - Man Power Planning - Design Criteria - Conceptual Design - Single Line Diagram - Prelim Calculation /

Analysis

- Basic Engineering with Initial Data

- RFQ, get vendor data - Detail Engineering with

initial data

- Basic Engineering with Updated/Final Data

- vendor print - Detail Engineering with

Updated/Final data - Manufacturing Data Record

Design Cycle

PLANNING

DESIGN

IMPLEMENTATION

ELECTRICAL EQUIPMENT

Gas / Diesel Engine Generator Set

Uninterruptible Power Supply

Battery

DC Charger

HV Switchyard

Power Transformer

Neutral Grounding Resistor

Switchgear and Motor Controller

Distribution Board

Lighting Panel

Bus Duct

Protection / Synchronizing Panel

ELECTRICAL EQUIPMENT DEG BUSDUCT

MV

SWITCHGEAR

DIST.

TRAFO

MCC UPS

ELECTRICAL MATERIAL

Lighting Fixture & Accessories

Grounding & Lightning Protection

Communication System

Fire Alarm System

Electrical Heat Tracing System

Power & Control Cables

Cable Tray & Accessories

Bulk Materials

ELECTRICAL MATERIAL

CABLE GLAND TERMINATION KIT RECEPTACLE HAZARDOUS BOX CEILING LIGHTING

PAGING CABLE TRAY GROUNDING CABLING AIR TERMINAL

Typical Document List

BASIC ENGINEERING

Standard Design

Standard Drawing

Equipment List

Single Line Diagram

Interlock Logic Diagram

Power System Analysis

Equipment Selection

Specification

Electrical Data Sheet

Hazardous Area Classification

Requisition for Electrical Equipment

Requisition for Electrical Non Equipment

Technical Bid Evaluation

Typical Document List

DETAIL ENGINEERING

Schematic Diagram

Connection List / Connection Diagram

Cable Schedule

Duct Bank and Pit Layout

Power Wiring, Cable Tray, and Grounding Layout

Communication Layout

Fire Alarm Layout

Electrical Equipment Layout

Lighting Layout

Boundary Work with other Discipline

Heat Dissipation Calculation

Electrical Material List

Vendor Print Check

Material Take Off

Detail

Drawing

Document Category Basic Engineering

Design Standard

Single Line Diagram

Electrical Description and System Analysis

Specification and Data Sheet

Detail Engineering

Detail Engineering Drawings / Layouts

Categorized area wise

Manufacturer Equipment Drawing

Procurement Activity

Requisition

Technical Bid Evaluation

Vendor Print Check

ORGANIZATION Project Manager

Project Engineering

Manager

Project Control Manager

Project Admin & Finance Manager

Project Procurement

Manager

Project Quality Control Manager

Project Construction

Manager

Instrument Lead Engineer

Piping Lead Engineer

Mechanical Lead Engineer

Process Lead Engineer

Civil Lead Engineer Electrical Lead

Engineer

Electrical Engineers

Electrical Designers

Senior Engineer

Corporate Quality Assurance

(Electrical Dep. Manager)

Electrical Drafters

Detail Design

Standard Productivity

Purposes for man hours estimation and man power planning • Drawing / Document Size : A1, A3, A4 • Unit of Measurement : Sheet, Set • Typical Manhours:

Single Line Diagram : A1 : 60 – 80 MH/Sheet Calculation : A4 : 80 – 100 MH/Set Detail Drawing : A1 : 40 - 60 MH/Sheet Specification/Data Sheet : A4 : 20 - 40 MH/Set Schematic : A3 : 8 – 16 MH / Sheet Requisition : A4 : 30 – 40 MH / Set MTO : A4 : 40 – 120 MH / Set TBE : A4 / A3 : 40 – 100 MH / Set Vendor Print : all : 40 – 120 MH / Set

• Productivity related to basic communication, originator experiences, template/procedure/work instruction, difficulty level, utilization of software.

• Standard productivity shall be updated based on company experiences

INQUIRY PLAN Purposes for purchasing / packaging planning

DOCUMENT LIST PLANNING

DOCUMENT LIST PLANNING

DOCUMENT LIST PLANNING

DOCUMENT LIST PLANNING

MANPOWER PLANNING

Consortium Partner Drawings

SCHEDULE • Detail schedule Electrical Engineering is developed

based Project Master Schedule, and must be coordinated with other disciplines

• Duration of Engineering schedule will impact man

power number • Consideration:

– Input / Output date required from / by other disciplines – Lead time of equipments / materials – Approval time – Work Sequence – Construction time

SCHEDULE