tubing shall be provided with suitable guards or protected by other approved means.
(2) Damp and Wet Locations. Electrode enclosures in- stalled in damp and wet locations shall be specifically listed and identified for use in such locations.
FPN: See 110.3(B) covering installation and use of electri- cal equipment.
600.42 Electrode Connections.
(A) Points of Transition. Where the high-voltage secondary circuit conductors emerge from the wiring methods specified in 600.32(A), they shall be enclosed in a listed assembly.
(B) Accessibility. Terminals of the electrode shall not be accessible to unqualified persons.
(C) Electrode Connections. Connections shall be made by use of a connection device, twisting of the wires to- gether, or use of an electrode receptacle. Connections shall be electrically and mechanically secure and shall be in an enclosure listed for the purpose.
(D) Support. Neon secondary conductors) shall be sup- ported not more than 150 mm (6 in.) from the electrode connection to the tubing.
(E) Receptacles. Electrode receptacles shall be listed.
(F) Bushings. Where electrodes penetrate an enclosure, bushings listed for the purpose shall be used unless receptacles are provided.
(G) Wet Locations. A listed cap shall be used to close the opening between neon tubing and a receptacle where the receptacle penetrates a building. Where a bushing or neon tubing penetrates a building, the opening between neon tubing and the bushing shall be sealed.