Expert Guides
Practical tips for electrical professionals
In-depth guides, calculators and decision aids for electrical installation — from cable sizing to smart home planning.
Featured Lighting Design – Planning Light Circuits Correctly
Lux values per room, switching types (two-way, crossover, dimmer) and LED driver selection. A practical guide for lighting planning.
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Tools & Calculators 8 min Cable sizing – The calculator for the right cross‑section
Calculate current, power and the correct cable cross‑section. Includes notes on voltage drop and current carrying capacity.
Smart Home 15 min Planning a smart home – How to choose the right system
Comparison of KNX, Loxone, ZigBee/Z‑Wave and Wi‑Fi. Decision guide based on budget, new build/retrofit and scope.
Installation 10 min Plan socket outlets correctly – heights, distances and recommendations
Practical guide for mounting heights, distances and room checklists – aligned with standards and easy to follow.
Protection 10 min Choosing the right RCD – Type A, B, F comparison
Which RCD for which application? Clear explanation of residual current device types with selection guide.
Renewable Energy 11 min Wallbox Installation – Electrical installation for EV charging stations
Technical requirements, cable sizing, RCD protection and grid connection for wallbox installations.
Installation 12 min Planning electrical installation – Complete guide for your building project
Step-by-step electrical planning: sockets, switches, distribution, future-proofing. With checklists.
Renewable Energy 12 min Photovoltaic & electrical installation – Professional PV system connection
Electrical requirements for PV systems: DC wiring, inverters, storage, grid connection and protection.
Protection 8 min Bathroom Protection Zones – Electrical Installation Guide
Which electrical devices are permitted in which zone? Protection zones 0, 1, 2 and beyond explained clearly with IP protection ratings.
Protection 9 min Choosing the Right MCB – Type B, C, D Comparison
Trip characteristics, rated currents and sizing of miniature circuit breakers. With selectivity guidance and RCD coordination tips.
Installation 10 min Planning meter cabinets correctly – dimensioning and future-proofing
Structure, TAB requirements, reserve spaces, and costs. Practical guide for meter cabinet planning in new construction and renovation projects.
Protection 9 min Planning surge protection correctly – SPD types 1, 2, and 3 compared
Mandatory since DIN VDE 0100-443: When to use which SPD type? Installation location, cascading, and combination with PV systems explained.
Installation 10 min Planning networks and data cables – structured cabling in new buildings
Cat6a vs. Cat7 vs. fiber optics: Room planning, network cabinets, access points, and installation tips for future-proof data cabling.
Renewable Energy 11 min Connecting a heat pump – Electrical requirements and installation
Three-phase connection, fuse protection, cable cross-section, SG-Ready, and heat pump tariff. Everything you need to know about electrical installation for heat pumps.
Installation 11 min Electrical installation in old buildings – safe and standard-compliant renovation
Recognize classic zeroing, switch from TN-C to TN-S, retrofit RCDs, and modernize step by step. Guide for electrical systems in older buildings.
Installation 10 min Outdoor & garden electrical systems – Safe installation in outdoor areas
IP protection classes, laying underground cables, garden lighting, and outdoor sockets. Standards and practical tips for outdoor electrical installations.
Smart Home 9 min Electrifying roller shutters and awnings – motorization and control
Tubular motors, wiring, central control, and smart home integration. Guide to electric shading systems.
Tools & Calculators 10 min E-check & test reports – Testing electrical systems in accordance with standards
Initial inspection vs. periodic inspection, measurement methods, inspection reports, and common defects. Guide based on DIN VDE 0100-600.
Tools & Calculators 9 min Electrical Planning Software Compared: ePLAN, hagercad, ProCAD and Alternatives
The most relevant tools for electrical planning side by side. Features, pricing, and which option suits which type of business.
Tools & Calculators 7 min Create Circuit Diagrams Online: Drawing Schematics in the Browser
Build standards-compliant circuit diagrams directly in the browser, no CAD install needed. Step-by-step, symbols, and common pitfalls.
Tools & Calculators 8 min Switch Cabinet Planning Software: Layout, Terminal Plan, Bill of Materials
How to plan a switch cabinet efficiently and to standard, with auto-generated terminal plans and BOMs.
Smart Home 7 min KNX Software Alternatives to ETS: Tools That Speed Up Commissioning
ETS is the standard, but expensive and steep to learn. Which KNX software alternatives exist and when do they pay off?
Protection 10 min IEC 60364 Overview: The Most Important Parts of the Low-Voltage Standard
IEC 60364-4-41, -4-43, -5-54, -6, -7-701: which parts of the low-voltage standard cover what? A practical reference.
Installation 8 min Residential Wiring Standard: Minimum Outlets and Circuits per Room
How many sockets, light points and circuits per room are actually required? Practical room-by-room guidance.
Installation 7 min Grid Connection Rules: What Network Operators Require for House Connections
Grid connection rules govern the link between a building and the distribution network. Meter cabinet, control cables and selectivity at a glance.
Installation 8 min Modern Meter Cabinet Standard: Requirements You Need to Know
Sizing, reserve fields and control wiring for the meter cabinet, explained in plain terms with practical examples.
Protection 7 min Arc Fault Detection (AFDD): Requirements, Function and Where They Apply
AFDDs detect arcs and prevent cable fires. Where they're required and how they actually work, explained in detail.
Protection 9 min Equipotential Bonding and Earthing: PE Conductor, Bonding Bar, Foundation Earth
How earthing and bonding work, what standards require, and how to install foundation earths correctly.
Protection 6 min IP Protection Ratings Explained: IP20, IP44, IP65, IP68 in Practice
What the two digits in an IP rating mean. Table and real-world examples for bathrooms, outdoors and industrial use.
Tools & Calculators 7 min Bill of Materials for Electricians: Generate Lists Straight from the Plan
Auto-generate the BOM from your installation plan, accelerate wholesaler ordering and avoid mistakes.
Tools & Calculators 7 min Electrician Quoting Guide: Software for Fast, Accurate Estimates
How to build quotes for electrical work that are fast, clear and reproducible, including hourly rates and material markup.
Tools & Calculators 8 min Electrical Site Measurement and Takeoff: Methods, Tools and Pitfalls
How to do site measurement and quantity takeoff for electrical projects properly, with tips for retrofits, new builds and handover.
Installation 8 min Kitchen Electrical Planning: Outlets, Three-Phase and Dedicated Circuits
How to plan kitchen electrics properly: counter sockets, cooker connection, dishwasher, smart appliances.
Installation 7 min Home Office Electrical: Outlets, Network and UPS Done Right
What matters electrically in a home office: enough outlets, structured LAN, UPS and proper lighting.
Installation 7 min Outdoor Lighting Design: Path, Facade, Patio and Garden
How to plan outdoor lighting safely and atmospherically: colour temperature, IP ratings, control and common garden mistakes.
Smart Home 9 min KNX vs Loxone vs Homematic: Which Smart-Home System Fits You?
KNX, Loxone and Homematic side by side. Strengths, weaknesses, costs, and which one suits which build.
Smart Home 7 min DALI Lighting Control: How the Lighting Bus System Actually Works
Understand DALI: addressing, groups, scenes, and the advantages over 1-10 V or phase-cut dimmers.
Renewable Energy 8 min Battery Storage Installation: Wiring, Location and Safety
How to install PV battery storage properly: AC vs DC coupling, fire safety, inverter and grid connection.