Case study · GorkyCAD Pro
Electrical project for a workshop and garage
A workshop with a garage: 3-phase machines, a welding point, a compressor, 300 lx lighting and sockets along the walls.
📊 Project specifications
| Type Workshop + garage | Area 120 m² |
| Phases Three-phase (380 V) | Calculated load 25 kW |
| Groups 16 | Welding 1 point |
| Design time 2 evenings |
🎯 Task
Power for a 3-phase lathe, milling machine, welding point, compressor, lighting 300 lx and sockets along the walls.
💡 Solution
Dedicated circuits for machines with motor protection, welding socket 3×6 mm² C32, compressor with soft start, lighting in 2 groups, socket grid on 4 circuits. RCD 30 mA on socket circuits.
- Dedicated circuits with motor protection for the lathe and milling machine.
- Welding socket 3×6 mm² on a C32 breaker and compressor with soft start.
- Lighting in 2 groups at 300 lx and a socket grid on 4 circuits with 30 mA RCDs.
- PDF set (SLD, plan, specification, cable schedule) ready for installation.
✅ Result
The project is ready for installation: SLD, plan, specification, cable schedule. The panel with motor breakers and thermal relays is fully assembled.
FAQ
What supply does a workshop with machines need?
Typically three-phase 380 V: machines go on dedicated circuits with motor breakers, and the load calculation sets the main breaker size.
How to connect a welding point?
On its own circuit sized for the welder current — e.g. 3×6 mm² with a C32 breaker — separate from lighting and sockets.
Can I design without experience?
Yes, GorkyCAD Pro calculates loads, cables and breakers automatically per regulations.
Create a project like this for free
Frequently asked questions
Yes, all articles and calculators are completely free.
The site offers 21 free calculators: cable sizing, breakers, RCD, voltage drop and more.
In GorkyCAD Pro: plans, panels, calculations and a PDF set for free.
Write to hello@gorkycad.pro — specialists will review and correct it.