| A | B |
|---|
| A C.P.C. prevents accessible metalwork from becoming | Live |
| Earth Leakage currents are monitored by using a | Residual Current Device |
| Fuses protect against | Over Current |
| A 3kW 230V loading should be protected by a fuse rated at | 13A |
| Miniature circuit breakers can be easily | reset when tripped |
| A consumer unit contains the circuit Isolator and circuit | Fuses |
| If an over current is allowed to flow for too long then this can result in | damage to the Cable Insulation |
| A fuse holder identified with a Blue dot will have a current rating of | 15A |
| A fuse holder identified with a White dot will have a current rating of | 5A |
| A fuse holder identified with a Yellow dot will have a current rating of | 20A |
| A fuse holder identified with a Red dot will have a current rating of | 30A |
| A protective device is installed in a circuit to act as the | Weakest Link |
| To operate a Miniature Circuit Breaker and a fuse BOTH rely upon | Heating Effect |
| An R.C.D. installed to protect socket outlets in a domestic dwelling will be rated at | 30mA |
| A thermostate is used to monitor the difference in | Temperature |
| An Isolator with a lock off is installed in a circuit to allow | Maintenance to take place |
| A coil in a contactor gives protection against | No-Voltage |
| A cartridge fuse used in a plug top has a British Standard number | BS1362 |
| A cartridge fuse used in a domestic consumer unit has a British Standard number | BS1361 |
| The IEE Wiring Regulations have a British Standard number | BS7671 |
