Per NEC 252.2, a tent is explicitely considered a "Portable Structure" and Article 252 invoked as the prevailing code. Which means 525.21(A) is applicable, and the disconnecting means must be located within sight of and within 6' of the operator station. Does that mean the panel must be installed in the pulpit? And that it must be padlocked because the operator is an unqualified person? I'm confused!
Secifically to tents, 525.31:
525.31 Equipment Grounding. All equipment to be grounded shall be connected to an equipment grounding conductor of a type recognized by 250.118 and installed in accordance with Parts VI and VII of Article 250. The equipment grounding conductor shall be connected to the system grounded conductor at the service disconnecting means or, in the case of a separately derived system such as a generator, at the generator or first disconnecting means supplied by the generator. The grounded circuit conductor shall not be connected to the equipment grounding conductor on the load side of the service disconnecting means or on the load side of a separately derivced system disconnecting means.
No mention of 250 Part III anywhere in 525. In fact, it's completely silent on ground rods.
