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Author Topic: Tour Bus Shore Power  (Read 13608 times)

Frank DeWitt

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Re: Tour Bus Shore Power
« Reply #30 on: June 25, 2014, 11:24:05 pm »

As shown the light would be off.  Flip one switch. Or reverse the travelers at one end.
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Jonathan Johnson

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Re: Tour Bus Shore Power
« Reply #31 on: June 26, 2014, 10:38:30 am »

What is wong with their picture (aside from assuming you only use 15 amp circuits for lights)?

Well, for one thing, 3-way switches aren't marked "ON" (or "OFF" for that matter). And the wires don't actually make contact with the bulb, (which doesn't meet federal standards for efficiency) so it's glowing by some mysterious electrical force.

And if you really want to get picky, they don't show the EGC which should be bonded to the yoke of each switch, and connections and devices are not contained within boxes! But I must assume that the artist assumed that people would assume that those things are necessary and removed them from the drawing to avoid unnecessary complication.
« Last Edit: June 26, 2014, 10:42:23 am by Jonathan Johnson »
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Jonathan Johnson

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Re: Tour Bus Shore Power
« Reply #32 on: June 26, 2014, 10:56:24 am »

As shown the light would be off.  Flip one switch. Or reverse the travelers at one end.

I like to wire them so when all switches are down the light is off. (Not sure what this has to do with tour buses, seems the topic veered.)
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Chris Hindle

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Re: Tour Bus Shore Power
« Reply #33 on: June 26, 2014, 12:14:17 pm »

I like to wire them so when all switches are down the light is off. (Not sure what this has to do with tour buses, seems the topic veered.)
+1.  Unfortunately, that also means when all switches are UP, the light is also off.
Sometimes, you just can't win.
Tour Buses.... I worked with a group once, there were 3-way switches for the "common area" lights in the Prevost.
There ya go, back on topic (sorta)
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Cailen Waddell

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Tour Bus Shore Power
« Reply #34 on: June 26, 2014, 05:26:35 pm »

And surely there have been all kinda of 3-ways, not just switches, on tour buses....


Sent from my iPhone using Tapatalk
« Last Edit: June 26, 2014, 09:55:01 pm by Cailen Waddell »
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Jonathan Johnson

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Re: Tour Bus Shore Power
« Reply #35 on: June 26, 2014, 07:28:53 pm »

Unfortunately, that also means when all switches are UP, the light is also off.
Sometimes, you just can't win.

If you add a 4-way switch and wire the three switches so that all down is off, the light will be on if they are all up.
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Mike Sokol

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Re: Tour Bus Shore Power
« Reply #36 on: June 27, 2014, 10:16:49 pm »

Back OT

If you want to see my new video series about RV power here's me debunking the myth that rubber tires on an RV or Tour Bus have nothing to do with protecting you from lightning: http://www.youtube.com/watch?v=abLUcHZx6OU&list=UUARpsGWj6MJ7JE78OcfWKWw

And here's where I discuss why it's a good idea to unplug shore power from an RV while in a lightning storm. http://www.youtube.com/watch?v=ZBv7TCkea4A&index=4&list=UUARpsGWj6MJ7JE78OcfWKWw

Of course, I think that most (or all) of you should know this already. But RV owners often think their expensive Class-A Motorhomes somehow exempt them from the laws of physics.
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Steve M Smith

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Re: Tour Bus Shore Power
« Reply #37 on: June 28, 2014, 04:21:43 am »

+1.  Unfortunately, that also means when all switches are UP, the light is also off.

That works for me too.  Light on when the switches differ.


Steve.
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Re: Tour Bus Shore Power
« Reply #37 on: June 28, 2014, 04:21:43 am »


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