A complete Danish reference work on electrical installation — from Ohm's law and voltage drop to cable sizing, circuits and protection against shock and overcurrent. Read the articles. Use the calculators. Ask the assistant. Same account as technical insulation.
13
Calculators
15
Articles
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Questions
5-core cable cross-section (L1·L2·L3·N·PE), a simple circuit U = R·I, an analogue 230 V meter and the lightning bolt for voltage. Copper marks the live conductors.
§ 01 — What you can do here
Six tools from post to installation — for apprentices, fitters and installers.
Ohm's law, voltage drop, cable sizing and protection against shock and overcurrent — the trade's knowledge with formulas and figures.
Ohm's law, voltage drop, cable cross-section, 3-phase power, circuit load and energy consumption — enter the figures and get answers in seconds.
Checklists and process templates for installation, troubleshooting, switchboard work and documentation — ready to follow on the job.
Practise the syllabus: Ohm's law, voltage drop, cable sizing and protection — mixed or by topic, so you're ready for the exam.
Cables, circuit breakers and RCDs, switchboard gear, installation materials and cable routing — the common standard types, gathered in one place.
A Claude-powered assistant focused on electrical installation. Ask about cables, voltage drop, circuits, protection and electrical engineering.
§ 02 — Read now
U = R · I and P = U · I — the foundation of all electrical calculation
Why voltage drop matters — and what the limits are
Current-carrying capacity, voltage drop and short circuit
Residual current, automatic disconnection and bonding
§ 03 — Tools
Enter the length, current and conductor material — find the smallest cross-section that keeps the voltage drop below your limit, and the nearest standard cross-section. Then verify the current-carrying capacity and short-circuit performance against DS/HD 60364-5-52.
Open calculators→Example · Cable cross-section by voltage drop
§ 04 — Next step
The AI assistant can size cables, explain protection, calculate power and help with real-world cases in electrical installation. Write to it as you would to a colleague.
Ask a question§ — Hvor kan du læse Electrician?
Electrician udbydes på 24 steder i landet. Listen er vejledende — tjek altid det friske og fulde udbud på UddannelsesGuidens erhvervsuddannelseskort.