RE: Potential Problems with 120 v AC wiring in the Westy
While on this subject let me add an additional safety suggestion.  Get a
line tester and/or a 120v plug in meter.  Both are avialable from places
like Camping World.  And use them to test the shore power you are plugging
into BEFORE you connect to shore power of unknown quality.  I've been doing
this ever since a bad power connection at Fishermen's Bend campground cost
me a battery charger.  If you follow some of the RV groups you will see all
kinds of horror stories of bad power connections that fried equipment.