Basic Qualification · B-003 Station assembly, practice and safety · B-003-019-006
Where should the green wire in a three-wire AC line cord be connected in a power supply?
- A To the "hot" side of the power switch
- B To the fuse
- C To the chassis
- D To the white wire
Correct answer: C — To the chassis. From the official ISED question bank, verified word for word.
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
Building a station safely: power supplies, grounding, RF exposure, lightning, feedline routing, and what a transmitter, receiver and transceiver actually do.