Electrical Design & Drawings —
Power, Lighting & SLD
Power distribution design, lighting calculations, single line diagrams, panel and load schedules — complete electrical drawing packages delivered remotely to clients worldwide.
Full-Scope Electrical Design & Drawing Service
Our electrical design drawings service covers the complete electrical engineering scope for commercial, healthcare, industrial, and institutional buildings — from the incoming supply and main distribution board through to final circuit wiring layouts, lighting calculations, and earthing design.
Whether you need a standalone single line diagram for a small fit-out or a complete electrical design package for a multi-storey building, we deliver professionally drafted AutoCAD drawings and accompanying calculations suited for authority submission, contractor tendering, and construction.
Electrical Services We Provide
- Single line diagrams (SLD) for MDB, SMDB, DBs
- Power distribution layout plans
- Lighting design and lux calculations
- Emergency lighting and exit sign layouts
- Panel schedules and load schedules
- Cable sizing and voltage drop calculations
- Earthing and lightning protection design
- Generator and UPS system design
- Conduit and trunking layout drawings
- ELV systems coordination (CCTV, ACS, BMS)
What's Included in an Electrical Design Package
Single Line Diagram (SLD)
Main SLD from incoming supply through MDB, SMDBs, and distribution boards with breaker ratings, cable sizes, and fault levels.
Power Layout Plans
Floor-by-floor AutoCAD layout plans showing power outlets, DB locations, cable routes, conduit sizes, and trunking routes.
Lighting Design & Lux Calcs
Lighting layout plans with fixture schedule, lux level calculations to CIBSE SLL or EN 12464, and emergency lighting compliance check.
Load Schedule
Complete load schedule with connected load, demand factors, maximum demand per board, and total building electrical demand.
Cable Sizing Calculations
Cable sizing to IEC / BS 7671 including current rating, voltage drop, and short circuit capacity verification for critical circuits.
Panel Schedules
Detailed DB / panel schedules showing each circuit breaker, rating, circuit description, cable size, and load in a format ready for procurement.
Electrical Designs Delivered Across Pakistan's Major Projects
Green Power Corporation has provided electrical design and contracting on the Islamabad International Airport, State Bank of Pakistan, hospital campuses, pharmaceutical manufacturing facilities, and commercial projects throughout Pakistan. Our electrical engineers understand both design and site realities — the drawings we produce are constructable and code-compliant.
We are experienced with multiple utility authority requirements including LESCO, FESCO, DEWA, and SEWA — and can tailor our designs to your applicable standard and submission format.
View Project Portfolio →Inputs We Need
Architectural floor plans · Equipment list (HVAC, lifts, major loads) · Utility authority / applicable standard · Any existing electrical drawings or specifications
Standards Applied
BS 7671 (18th Edition) · IEC 60364 · CIBSE SLL Code for Lighting · EN 12464 · NFPA 70 · Local utility authority regulations
Typical Turnaround
SLD only: 2–3 days · Single-floor layout: 3–5 days · Full building package: 1–3 weeks
Related Services
Fire Fighting System Design →
Electrical and fire fighting systems share coordination points — fire pump power supply, control panels, and sprinkler zone valves. Our NFPA fire fighting design service delivers the full fire protection package.
Plumbing Design Services →
Electrical loads for water heaters, booster pumps, and trace heating need coordinating with the plumbing design. Our plumbing service covers all water supply and drainage systems to BS EN 806 and CIBSE standards.
Request Your Electrical Design Quote
Tell us your building type, size, and applicable standard. We'll respond with scope and fee within 24 hours.