In many class rules for ship electrical systems requires the earth resistance between equipment and earth plate ( or ship's hull) to be 0.1ohm. Just wondering does this take into account the entire earthing installation connected with the equipment ( including length of conductor from the equipment all the way to the earth plate, keeping in mind also there are other earth conductors connected sharing the same earth plate). Surely if all these parameters are taken into account, the resistance of the earthing system would be more than 0.1ohm.
Any thoughts or ideas please is greatly appreciated?
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