No power to my fuses

There is normally only one power source to the igntion switch. If the engine turns over then No, the fuse would be after the igntion switch. If the engine does not turn over then yes, the fuse is before. On many GM products, there is a fuse link that supplies power to the igntion switch via the main fuse block "Hot all the time" portion. There is a fuse marked "IGN" that feeds the ignition switch.
You can manual use a jumper between a known hot power location and touch the ignition switch side of the realy coil. I have a test jumper with a fuse installed. That way if I touch something wqrong the fuse will blow rather than the wire melting down. This can be done using chassis battery, coach battery or power off the converter.

enblethen,why would they have a fuse before the fuse panel? Also how can I check the relay while plugged in? Is there a way of checking them when they are unplugged? Thanks

Relays vary on configuration. Each has a coil that needs to have conituity checked. There should be resistance on the coils.
Check the circuit to see if one side of the coil goes to ground.
The other side of the coil should have 12 volts DC when the ignition switch is in the "ON" position.
Contacts can be checked when the coil is energized.
I would start by tracing the power from the ignition switch toward the relays. I am betting on a blown fuse in the control circuit.

Thanks all, yes I have power to the panel, it is the two row of fuses that are energized by the ignition. I see the three big relays and have interchanged them and got nothing, there are two rows of relays at the bottom of the panel but none are labeled and there is no diagram. I believe that is where my problem lies ,but how do I check the relays??

Coach battery disconnect engaged?

Should add that many DPs have relays and fuses in external compartment below the driver's seat area. The relay could be powered by a fused circuit off the ignition switch. Type of relay will vary so you will need to look at the schematic that normally is in compartment.

check power going to the fuse panel first... So are you getting any 12v?

Those items could be powered from the ignition relay in your battery control center. The relay may not be energizing.