Basic earthing will be done for a building type building of size a x b$.$ Sizing of earthing devices and earthing conductor is required. The soil specific resistance is measured to be $160$ ohm.m$.$

a$)$ Calculate the grounding transition resistance of the basic earthing.

b$)$ Does the protection earth you have calculated for the socket ligne with type B fuse $($Ia$=5$ In$)$ meet the required safety requirement? Explain by calculation.

c$)$ Why is it necessary to use a residual current switch in the circuit? Explain by making calculation.

a$=6,$ b$=4$

Temel topraklama $=$ Basic Grounding