Basic Qualification · B-003 Station assembly, practice and safety · B-003-019-006
Dans un bloc d'alimentation, où doit-on relier le fil vert d'un cordon à trois fils servant à l'alimentation CA?
- AAu fusible
- BAu châssis
- CAu fil blanc
- DÀ la borne sous tension de l'interrupteur marche/arrêt
Correct answer: B — Au châssis. Question tirée de la banque officielle d'ISDE.
Why
The green wire is the safety ground, and it must connect directly to the metal chassis of your equipment. The full explanation — and one for every question — is in Pro.
Practise this section
Station assembly, practice and safety is section B-003 of the Basic exam: Building a station safely: power supplies, grounding, RF exposure, lightning, feedline routing, and what a transmitter, receiver and transceiver actually do.
Drill B-003 — free, no account