As a general rule, between the perimeter barrier and structures within the protected area, except when a building is a part of the perimeter barrier, there should be a clear zone of at least:

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The Answer of As a general rule, between the perimeter barrier and structures within the protected area, except when a building is a part of the perimeter barrier, there should be a clear zone of at least:

As a General Rule, Between the Perimeter Barrier and Structures