Insidious Fuse Panel On The Wall

Nikon Z6 II, 1/25 sec, f/6.3, 50mm, ISO 4000
Fuse panel detail from the Heart’s Content Cable Station. I love the different colored fuses; I wonder if there is any meaning to the color patterns? While it looks small, the cable station museum is worth a few hours of your time.
Heart’s Content Cable Station: 47.872321° -53.368416°