ANSI C136.11-2011 (S2021): Multiple Sockets
In 1878, the first electric street light poles were installed in Paris. Since then, they have become a common feature in almost all cities in […]
electric lamp
ANSI C78.20-2022: Electric Incandescent Lamps
What did Thomas Edison design in 1879 that is still widely used around the world over one century later? The answer is the incandescent light […]