My layout is as shown in the attached pic, and is:
9'-5" across the Top Horizontal leg
12'-8" down the Right Vertical leg.
My wire runs will be 8 ft at the longest, and will all run from local Euro Style terminal blocks back to ganged Euro Style terminal blocks near the Power/Control area at the inside corner.
Below, I have listed the proposed wire sises that I plan to use.
You will see 18 AWG listed for the DZ 1000 Switch Machine extenders and and non-derailing drops, as well as for the controller extenders.
Question 1) Would it be electrically sound to use 20 AWG for these all SW Machine and Controller extenders and non-derailing drops?
Question 2) Would it be OK to drop back to 18 AWG wires between the transformers and near terminal blocks, leading up to the longer runs or should 14 AWG be used all the way from the transformers to the local drops terminal blocks?
Any and all comments and/or suggestions would be much appreciated.
Thanks,
Material:
Terminal blocks - Euro Style, 12 position
Power Drops – 18 Gage, 2 conductor, Wire, Stranded (Red/Black) (Separated)
Power Runs – 14 Gage, 2 conductor, Wire, Stranded (Red/Black) (Left as cable)
DZ 1000 SW. Machine Drops – 18 Gage 3 conductor Wire, Stranded (White/Green/Red) (Separated)
DZ 1000 SW. Machine Runs – 18 Gage, 3 conductor Wire, Stranded (White/Green/Red) (Left as cable)
DZ 100 Drops Controller Drops – 18 Gage 3 conductor Thermostat Wire, Stranded (White/Green/Black) (Separated)
DZ 100 Drops Controller Runs – 18 Gage 3 conductor Thermostat Wire, Stranded (White/Green/Black) (Left as cable)