26. Briefly describe application for RCBOs. List typical ‘extraneous parts’ building.3. List typical ‘exposed parts’ installation. State the meaning basic protection.
23.
25. for use mobile equipment out doors required IEE
Regulation 411.
21. State the meaning fault protection.
22.3. State the need for RCDs electrical installation.257
U W
6 6
2 2
C1
L1 C1
2
C3
4
5
6
To phase supply
To phase motor
20.
28. supplying socket outlets with rated current not exceeding 20A
and
b.
a.
27. Use sketch show the path taken earth fault current.
. Use bullet points and simple sketch briefly describe the operation
of RCD. Use sketch show how ‘discrimination’ can applied piece of
equipment connected final circuit.
24
