Professional Engineering Calculations,
Simplified
BS 7430 earthing design, lightning protection, soil resistivity analysis, and IEEE 80 substation grounding — all in one platform. Standards-compliant. Report-ready.
Earthing Design
R = 0.842 Ω ✓
Lightning NFPA
Severe — Protect
Lightning IEC
Level II — Nd=0.12
Soil Resistivity
ρ = 45.2 Ω·m
IEEE 80 Grid
GPR = 1.24 kV
ESE Terminal
Rp = 52 m
Short-Circuit
Ik″ = 24.6 kA
Everything You Need
Standards-compliant engineering tools, professional reports, and project management — all in one platform.
Earthing System Design
BS 7430:2011 compliant calculations for single rods, parallel arrays, buried conductors, and combined electrode systems with automatic cable sizing.
Lightning Protection
NFPA 780:2020 risk assessment and IEC 62305-2:2010 comprehensive risk management with multi-component analysis.
Soil Resistivity Analysis
Wenner four-probe method processing with multi-zone characterization and automated resistivity profiling.
IEEE 80 Substation Grounding
Touch and step voltage analysis, grid design optimization, and safety compliance verification for substations.
Professional PDF Reports
Branded, verifiable engineering reports with verification codes, ready for client submission and regulatory review.
Project Management
Organize calculations by project and building. Save, revisit, and compare results across your entire portfolio.
7 Powerful Engineering Modules
Each module implements full standard procedures, generates professional PDF reports, and integrates seamlessly with your project workflow.
Earthing System Design
Complete earth electrode design per BS 7430 with 11 arrangement types. The module walks you through selecting soil resistivity, choosing an electrode arrangement, specifying rod/strip dimensions, and computing the total earth resistance with parallel electrode formulas. Each arrangement uses the exact BS 7430 clause equations (§9.5.2–§9.5.8).
Includes an interactive Canvas mode ("Undefined Shape") where you draw custom rod positions, connect them with conductors, and the system auto-detects the pattern (triangle, parallel line, or custom) and computes coupled resistance using BS 7430 formulas.
Key Capabilities
How It Works
Get from project setup to professional reports in three simple steps.
Create a Project
Set up your project with client details, location, and building parameters.
Run Calculations
Enter parameters and get instant standards-compliant results with detailed breakdowns.
Generate Reports
Export professional PDF reports with verification codes and full compliance documentation.
Built by Engineers, for Engineers
PIS Core is developed by PIS Professional Integrated Solutions, an Egyptian engineering firm specializing in electrical infrastructure. Every calculation engine is validated against international standards and field-tested on real projects.
BS 7430, IEEE 80, IEC 62305, NFPA 780, and NF C 17-102 compliance
7 professional PDF report types with detailed equations and results
Multi-project management with cloud-synced calculations
Web-based platform — access from any browser, anywhere
Real-time calculations with instant validation and feedback
Interactive charts, soil profiles, and visual canvas editing
Get in Touch
Have questions about PIS Core? Want to discuss enterprise licensing? We'd love to hear from you.