Run the wire
Current needs a way there and a way back. Tap one terminal, then the next — and the wire is laid.
Play as long as you like. There is no clock, and nothing is being counted.
On screen only.
Det her er en tegning. Rør aldrig selv en rigtig installation — arbejde på en fast elinstallation skal laves af en autoriseret elinstallatørvirksomhed (Erhvervsstyrelsen, sik.dk).
All the way round
Få lampen til at lyse: en vej hen, en vej tilbage — og jorden på.
See it done — Opgaven er løst, og hvert trin er forklaret undervejs. (1/4)
Next level: Udfyld det tomme — Samme opgave — men ét trin mangler, og det er dit.
Pick a wire
Result
It works — and it is correct.
Strøm løber i en RING. Fasen (brun) fører hen til lampen, nullederen (blå) fører tilbage, og først når ringen er hel, sker der noget. Den grøn/gule beskyttelsesleder fører ikke strøm i drift — den er der kun for at redde dig, hvis der går en fejl.
Wires you have run
Source
HD 308 S2 (harmoniseret ledningsfarvekode) — gengivet kildebelagt i Discebos elektriker-teknikguide «Montage af gruppetavle». https://webshop.ds.dk/ (fetched 2026-09-01)
Seed code: KOBBER-7
Who actually does it?
The electrician
The colours are not chosen by whoever pulls the wire. They are set in a common European rule, so an electrician in Aalborg and one in Aarhus open the same board and see the same thing.
And why may you not do it yourself?
Because a fault cannot be seen. A board wired wrongly lights up just as nicely as one that is right — until somebody touches metal. That is why it has to be done by someone with the paperwork for it.