NEON LAMPSNEON LAMPS132. High-voltage neon lamps (Fig. 10.66) consist of two terminals or electrodes set into the opposite ends of a glass tube which contains neon, helium, or argon gas, with or without mercury, at low vapor pressure. Refer to Div. 9, Sec. 460 for NEC requirements that pertain to this work. Refer to Sec. 141 for information on low-voltage neon lamps, referred to as glow lamps.
Terrell Croft; Frederic P. Hartwell; Wilford I. Summers: American Electricians' Handbook, Sixteenth Edition. NEON LAMPS, Chapter (McGraw-Hill Professional, 2013), AccessEngineering