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Lightning Rod (LPS)

Lightning protection (LPS) safely directs the lightning current to the ground — protecting the building and electronics.

📐 Floor Plan & Rooms

🧱

Walls & Partitions

Load-bearing and non-load-bearing walls, partitions, thickness and material settings.

🚪

Doors & Windows

Door and window placement, size configuration, opening direction.

📏

Dimensions & Annotations

Automatic dimensions, callouts, text annotations on the plan.

📦

DXF Import

Import floor plans from AutoCAD and other CAD systems via DXF.

⚡ Electrical

Outlets & Switches

Power and low-current outlets, switches, dimmers. GOST/IS symbols.

💡

Lighting

Luminaires, lighting groups, automatic illuminance calculation.

📫

Junction Boxes

Automatic junction box placement, connection count accounting.

📋

GOST/PUE/IS Symbols

Complete library of symbols per GOST, PUE, IS, IEC standards.

🔲 Panels

🗄️

Auto Panel Assembly

Automatic panel layout: MCBs, RCDs, RCBOs, isolators — from the schematic.

📏

DIN Rails & Busbars

Automatic DIN rail length calculation, auto busbars per phase.

🌐

Feeder Topology

Panel hierarchy: main → sub → floor → apartment. Automatic connectivity.

〰️ Cables & Routes

🗺️

Auto Routing

Automatic cable routing via shortest path with obstacle avoidance.

📐

Cable Sizing

Automatic cross-section calculation by heating, voltage drop, short-circuit current.

📊

Cable Schedule

Automatic cable schedule generation with types, lengths, routes.

⬇️

Voltage Drop

Voltage drop calculation along the entire chain: from main panel to end consumer.

📊 Calculations

⚡

Loads

Pinst, Pcalc, Icalc, cos φ, Kd — automatic per IEC/IS standards.

🔥

Short-Circuit

Single-phase and three-phase short-circuit current calculation, breaker verification.

🔗

Selectivity

Protection selectivity check: upstream/downstream breaker coordination.

Deterministic Engine

All calculations are deterministic, not LLM. Guaranteed repeatability.

📄 Documents

📑

PDF Complete Set

Plan, single-line diagram, panel schematic, BOM, cable schedule, estimate — one click.

📐

DXF Export

Export plans and schematics to DXF for compatibility with AutoCAD and other CAD.

📊

Bill of Materials

Automatic bill of materials with equipment, cables and materials quantities.

💰

Estimate

Automatic cost calculation for equipment, cables, and installation work.

🤖 AI Assistant

✅

Standards Checking

Automatic project check against GOST, PUE, IS, IEC with violation details.

💡

Recommendations

AI suggests fixes for errors and project optimizations.

Calculation Explanations

Step-by-step explanation of each calculation: formulas, inputs, results.

🔍

Project Search

Semantic project search: find all outlets in the bedroom, check cable size in the kitchen.

🏗️ 3D Visualization

3D Building Model

Automatic 3D building model from floor plan: walls, doors, windows.

3D Cable Routes

3D cable route visualization with color-coded groups.

🗄️

3D Panel

Three-dimensional panel visualization with DIN rails and devices.

And this is just the beginning. New features are added every week.

🌐 Open app 🚀 Try for free

Elements

  • Air-termination — a rod or mesh catches the strike;
  • Down-conductors — at least 2, along the walls;
  • Earthing — a separate loop, resistance ≤ 10 Ω.

Protection classes

ClassPurpose
IExplosive, high risk
IIHospitals, public
III-IVResidential, commercial

FAQ

Is it needed for a house?
Per IEC 62305 — if the risk is above acceptable: tall trees nearby, open field, high lightning days count.
Does it protect electronics?
Partially — the SPD (surge protection) is required together with the LPS to protect electronics.
All glossary terms

Frequently asked questions

Is this article free?
Yes, all articles and calculators are completely free.
Where can I run calculations?
The site offers 21 free calculators: cable sizing, breakers, RCD, voltage drop and more.
How do I prepare an electrical project?
In GorkyCAD Pro: plans, panels, calculations and a PDF set for free.
Found an error in the article?
Write to hello@gorkycad.pro — specialists will review and correct it.

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