Question: why iccp is switched off in port?
Answer: ICCP EFFICIENCY DEPEND ON THE SALINITY OF THE WATER. THIS IS BECAUSE IN SALINE WATER THE IMPEDANCE IS LESS WHICH ALLOW EASY FLOW OF CURRENT TO THE ANODES AND HELPS IN EFFICIENT PROTECTION OF THE HULL. WHILE IN FRESH WATER IMPEDANCE IS HIGH DUE TO LESS SALINITY. ... HENCE IN PORTS OR IN FRESH WATER THE ICCP IS STOPPED.