What's going on with this junction box?
Post date: 2022-01-24 10:16:34
Views: 310
I removed a ceiling light in my apartment only to discover a junction box with wiring I did not expect. Photo here. Left to right: two-strand white wire; four-strand blue wire; single-strand red wire.

This is an old (late 1960s) apartment building in NYC, and I'm all but certain the box dates to that time. The white and red wires were connected to the old lamp. It's the blue wire that I'm confused by. (All wires had wire nuts before I removed them.) I was hoping to see a green grounding wire, but alas.

So, what's up with the blue wire? Do I need to be calling in an electrician here? Thanks for your advice.
Number of Comments
Please click Here to read the full story.
 
Other Top and Latest Questions:
Broadcom debt deal expected to reach upwards of $70 billion, sources say
Tesla recalls 3 million vehicles in China over doorhandle safety, driver monitoring
Trump to allow import of 300,000 metric tons of ground beef without tariff
U.S. military says it aided passage of 660 million barrels of oil through Strait of Hormuz since May
'A delicate dance': JD Vance says economic pressure is the best way to achieve Washington's objectives in Iran
Gold rebounds as bond jitters, debt fears and weaker dollar revive bullion demand
Movie: The Selfish Giant
Book: Listen to Your Sister by Neena Viel
Ted Lasso: Richmond's Got Talent
Dow surges 500 points Friday, but index posts back-to-back weekly losses