EX certified robotic system with enhanced corrosion resistance

A system for conducting subterranean operations comprising:

• a robotic system comprising an enclosure, the robotic system configured to be safely operated within an explosive environment when the enclosure is sealed, the enclosure comprising:
• a panel with a panel flange adjacent an edge of the panel;
• multiple first holes spaced along the panel flange;
• a housing with a housing flange around a perimeter of an opening in the housing;
• multiple second holes spaced along the housing flange, wherein the multiple second holes are blind holes, and wherein the blind holes comprise a closed volume below an installed fastener;
• and
• a pattern of the multiple first holes match a pattern of the multiple second holes;
• wherein the panel is aluminum, with a top surface and edge of the panel painted with a corrosion resistant paint, while a bottom surface, at least at the panel flange, of the aluminum is an exposed aluminum, wherein the housing includes a metallized layer of aluminum that covers the edge of the housing, the housing flange, and a portion of a top surface of the housing that is adjacent to the housing flange, wherein a bottom surface of the housing and a portion of the top surface of the housing, excluding the housing flange, is painted with a corrosion resistant paint, wherein the corrosion resistant paint overlaps the portion of the top surface of the housing, and wherein when the panel is attached to the housing, the exposed aluminum of the panel flange is electrically coupled to the metallized layer of the aluminum on the housing flange.

A system for conducting subterranean operations comprising:

• a robotic system comprising an enclosure, the robotic system configured to be safely operated within an explosive environment when the enclosure is sealed, the enclosure comprising:
• a panel with a panel flange adjacent an edge of the panel;
• a first hole formed in the panel flange and configured to receive a fastener and hold the fastener captive in the first hole;
• a housing with a housing flange around a perimeter of an opening in the housing;
• a second hole formed in the housing flange and configured to threadably receive the fastener, wherein the second hole comprises a closed volume when the fastener is installed in the second hole;
• and
• a seal element configured to sealingly engage the panel flange and the housing flange when the panel is attached to the housing;
• and
• a contact surface, with the seal element disposed between the contact surface and the edge of the panel and the contact surface electrically coupled to the housing when the panel is attached to the housing;
• wherein the panel is aluminum, with a top surface and edge of the panel painted with a corrosion resistant paint, while a bottom surface, at least at the panel flange, of the aluminum is an exposed aluminum, wherein the housing includes a metallized layer of aluminum that covers the edge of the housing, the housing flange, and a portion of a top surface of the housing that is adjacent to the housing flange, wherein a bottom surface of the housing and a portion of the top surface of the housing, excluding the housing flange, is painted with a corrosion resistant paint, wherein the corrosion resistant paint overlaps the portion of the top surface of the housing, and wherein when the panel is attached to the housing, the exposed aluminum of the panel flange is electrically coupled to the metallized layer of the aluminum on the housing flange.