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Old 04-01-2010
fairbank56 fairbank56 is offline
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Quote:
Originally Posted by Maine Sail View Post
There are parts I don't agree with and some points I am working with them on to get into committee, reviewed and added/changed,...
Have them check into sections 11.17.4, .5, and .6 and their associated wiring diagrams. The diagrams are incorrect and Iv'e been seeing incorrectly wired isolation transformers because of this. Installers are going strictly by the diagrams and not reading the text. As an example, they wire an isolation xformer as an isolation system but connect the shore ground to the shield AND the xformer case (according to the diagram). This wiring is done inside the xformer enclosure. Then somebody comes along and connects an external bond wire to one of the xformer's mounting bolts. They have just bypassed the purpose of the isolation system. The shore ground should ONLY be connected to the xformer shield in an isolation system. Sorry, way off topic but this thread is about finished anyway.

Eric
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