5.
17. consumer unit. 230V supply
b. circuit protective conductor
c. State the meaning ‘discrimination’ applied circuit protective
devices.
16.
15.0s
d.
.
13. overcurrent
c. fuse
d. The weakest link the circuit designed melt when overcurrent
flows one definition of:
a. 0.2. Briefly describe the action fuse under fault conditions. overload current
d.2s
b.2 all final circuits not exceeding
32A building supplied with 230V supply shall have a
maximum disconnection time not exceeding:
a. Briefly explain why electrical installation needs protective devices. current which exceeds the rated current otherwise healthy
circuit one definition of:
a. List the five essential requirements for device designed protect
against overcurrent. fault protection
b.11. very high resistance. ensure the effective operation the overcurrent protective devices,
the earth fault loop path must have:
a.
18. unlimited.4s
c.
14.3. List the four factors which the selection protective device
depends. fuses MCBs the live conductor
d. 0.
12. very low resistance
c.
19. short-circuit current. fault protection
b. According IEE Regulation 411
