Fun surprise

[Patches]

As part of my continuing winter electrical upgrade, I discovered that the wire from the shore power receptacle to the AC main breaker is 12/3.  Think it's supposed to be 10/3 to carry 30 Amps.

Not like its a re-wire, as all the AC wires are bundled where they enter the panel with gooey black electrical tape which I have to think is original on my 1990.

Worth checking.

Patches

[KWKloeber]

12 awg is allowable, though I would use 10 awg if redoing the wiring. 
CTY always chose the minimum on most things, and sometimes below the minimum

Allowable Amperage of Conductors Rated 105C:

           Inside / outside
AWG     engine space

16        21a / 25a
14        30a / 35a
12        38a / 45a
10        51a / 60a

* above is good for a single conductor or (2) bundled conductors.