Is body of water considered ground?
The floating dwelling units have to ground their system. How about a dwelling unit that is built on a permanently constructed deck that is on the body of water?
How is grounding achieved?
The way I see it, you have to answer two questions to answer.
1) Is it floating?
2) Is it permantly connected to shore power?
If the "permanently constructed deck" is floating, AND not permanently connected to shore power, it is a boat.
If the "permanently constructed deck" is floating, AND permanently connected to shore power, it is a structure that must follow the NEC.
If the "permanently constructed deck" is NOT floating, AND not permanently connected to shore power, it is a stand alone system.
If the "permanently constructed deck" is NOT floating, AND permanently connected to shore power, it is a structure that must follow the NEC.
