Surge Protective Device (SPD)
SPD protects equipment from voltage surges — lightning and switching. Installed in parallel with the protected circuit.
📐 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.
What it protects from
- Lightning nearby — induced surge through the line;
- Switching surges — on/off of powerful equipment;
- Network faults — broken neutral in the network.
Types
| Type | Where | Current |
|---|---|---|
| 1 | Input, with lightning protection | 10/350 µs |
| 2 | Main panels | 8/20 µs |
| 3 | Near devices | 8/20 µs, small |