Right, but if you have female receptacles on the layout, you must have male plugs to go into them - and someone now knowing could plug that male end into an extension cord, thinking it is just a feed for the layout-mounted receptacles. Again, YOU probbaly won't make that mistake, but in a group effort - you never know what someone new to the group might do. And especially at a modular event, you almost ALWAYS need lots of extension cords to hook up to the venue's power. We have a plastic tote or two full of extension cords and power taps - when the layout can be over 140 feet long you NEED distributed power/ That's the nice thing about the powerpole connectors for the track buses, no matter which configuration we build, it's easy to attach the boooster for a given area. And you can always plug them together offset but not reversed - some modules have just the two main track so there are 4 sets of Powerpole connectors, others have an extra branch or seperately powered yard and may have 2 or 4 extra sets. But when a following section is left out due to space limitations, a preceeding module with just two sets of red and black can plug in to the 8 position connector of the bigger module, just connecting in to the red and black fo rthe main lines. The club layout would be more correctly identified as sectional rather than modular, not ever section is identical so they can't be connected in a random order, some need to go next to others in a set sequence, many of those to complete a specific scene like a yard or a set of towns in proper order.
I have no problem with 120VAC outlets run along the layout itself, that can come in very handy for plugging in tools without crawling under the layout and requiring an extension cord. I HAVE seen examples where the walkaround throttle plug was a regular house plug - that would be a very bad combination. Usually not practical anyway since a walkaround throttle most often need 4 or more wires anyway.
Better safe than sorry - if everything is unique there is as close to 0 chance of a mistake as possible. I don't think a household AC plug will fit in a Powerpole connector, a Powerpole connector certainly can't plug in to a household outlet, and neither can a phone plug on a walkaround throttle.
Modeling the Reading Railroad in the 1950's
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