Glene77is:
Welcome to ECN!!!
Good post for your number 1.
A safe assumption that GF protection is required.
The debate over the insulation on the insulated inner conductors is and probably will continue to rage on. There is a thread herein regarding the "N" (outer nylon) on THHN/THWN building wire, discussing the reasoning of the outer nylon jacket.
Without 'seeing' the picnic shelter, it's difficult to determine if it's damp or wet; many discussions have arisen on the geometry issues, regarding driving rain. The 'usual' settlement is to err on the side of caution, and install the WP in use covers.
BTW; you welcomed comments.....I welcome comments, and new topics.
Take care, stay safe.
