A fuse or a circuit-breaker may be used to protect electrical cables from large currents that could lead to overheating. If a fuse is fitted, where should it be placed, and if a circuit-breaker is fitted, where should it be placed?
- Afuse at X; circuit-breaker at X
- Bfuse at X; circuit-breaker at Y
- Cfuse at Y; circuit-breaker at X
- Dfuse at Y; circuit-breaker at Y