DC circuitry in an RV
OK, I know I'm a rube. Cut me some slack. :) To the battery, ya' got your white wire and your black wire. If my logic is correct, as opposed to AC, the white wire connects to positive and the bl...
Forum Discussion
First; your assumptions about wire color.. Ya got your black wire and your white wire.
To my electronics trained mind Black = Chassis ground = Negative, sounds like you are trained the same way.. HOWEVER Neither you nor I nor anyone trained like us wired that RV.. Often the job is done by an electrican, the kind of guy who wired your house.. Where BLACK is HOT (positive) and white is NEUTRAL (bonded to ground)
So sans application of a volt-meter or marking the wires BEFORE you disconnect (Red for Positive black for Negative) (Even a "Tag" from a bread bag will do as a marker, in fact they are rather good markers, though I recommend nail polish or split loom or paint (Testors brand is good, comes in SMALL containers)
Now the ideal circuit
Chassis-battery+==fuse or breaker===switch====fuse block in side & converter==Loads===Chassis ground
(I used the equals sign to indicate wire since the - is for polarity)
If the fuse is blown, or breaker tripped, the disconnect switch open or a wire broken,, NO VOLTAGE,, wire broken includes bad connection between a wire and a terminal or the chassis (Negative line is suspect #1)
To my electronics trained mind Black = Chassis ground = Negative, sounds like you are trained the same way.. HOWEVER Neither you nor I nor anyone trained like us wired that RV.. Often the job is done by an electrican, the kind of guy who wired your house.. Where BLACK is HOT (positive) and white is NEUTRAL (bonded to ground)
So sans application of a volt-meter or marking the wires BEFORE you disconnect (Red for Positive black for Negative) (Even a "Tag" from a bread bag will do as a marker, in fact they are rather good markers, though I recommend nail polish or split loom or paint (Testors brand is good, comes in SMALL containers)
Now the ideal circuit
Chassis-battery+==fuse or breaker===switch====fuse block in side & converter==Loads===Chassis ground
(I used the equals sign to indicate wire since the - is for polarity)
If the fuse is blown, or breaker tripped, the disconnect switch open or a wire broken,, NO VOLTAGE,, wire broken includes bad connection between a wire and a terminal or the chassis (Negative line is suspect #1)
