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08-01-2012, 11:34 AM
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#1
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Rivet Master
1970 27' Overlander
Espanola
, Full Timer
Join Date: Jun 2007
Posts: 1,753
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These yellow converter plugs (?)
I have been using these since day one...You plug them onto your Airstream plug, and it converts over to a 110 type plug and then to the source of power. The dealer tells me they do not last long (for six bucks) referring to the AC unit running through it.
Are there alternatives? Or is this it?
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08-01-2012, 11:58 AM
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#2
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Rivet Master
2006 25' Safari FB SE
St. Cloud
, Minnesota
Join Date: Aug 2003
Posts: 13,280
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You are running your AC from this adapter in the driveway?
I remember when soldiermedic had an adapter like that melt on him. That is when using a 15A-30A adapter can turn dangerous.
A 3-prong household outlet can supply 15 amps. An AC compressor at start-up will try to draw just over 20 amps. It is hard on the compressor to try to run the AC from a 15A plug and may result in shortened lifetime for your AC. Don't do it.
The reason your Argosy has a 30A power supply is exactly because of the demand of the air conditioner.
I'll use such an adapter to top off my batteries, start up the fridge, run lights & radio ... and yes, run the fan while I'm in the driveway.
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08-01-2012, 12:00 PM
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#3
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Rivet Master
1968 28' Ambassador
Cedaredge
, Colorado
Join Date: Jul 2008
Posts: 2,542
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There are types like this http://www.pplmotorhomes.com/parts/r...ords/15382.htm. But I don't know if they last any longer. Mine looks like yours.
__________________
Jason
May you have at least one sunny day, and a soft chair to sit in..
2008 5.7 L V8 Sequoia
AIR # 31243
WBCCI # 6987
FOUR CORNERS UNIT
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08-01-2012, 12:07 PM
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#4
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Rivet Master
1970 27' Overlander
Espanola
, Full Timer
Join Date: Jun 2007
Posts: 1,753
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Well without getting too wordsy--I believe the breaker at the box is a twenty amp breaker. We did used to have a 'dogbone' and after awhile it wore out, but I will look into it. Thanks for the advice.
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08-01-2012, 12:09 PM
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#5
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Rivet Master
2011 34' Classic
Westchester Cty.NY
, / Miami FL
Join Date: Jul 2007
Posts: 3,122
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since some of the household outlets are rated for 20A you might fine one rated at 20A.
__________________
Ricky
2012 F150 Super Crew 5-1/2' bed Ecoboost 4x4 3.73 elec. lock diff. Propride hitch
give life. kidney & pancreas transplant 9/9/06
Ingrid-my unofficial '"World's Oldest Streamer" 1909-2008 R.I.P.
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08-01-2012, 12:21 PM
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#6
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Rivet Master
1970 27' Overlander
Espanola
, Full Timer
Join Date: Jun 2007
Posts: 1,753
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I just got off the horn with our local RV supplier here, and he said they were 'pretty much the same thing' But he had them in stock for @ $12 also (same price as your web link). We will look into it. 108 outside right now. whew!
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08-01-2012, 12:23 PM
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#7
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Rivet Master
2011 34' Classic
Westchester Cty.NY
, / Miami FL
Join Date: Jul 2007
Posts: 3,122
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this might be one:
30 Amp to 20 Amp Adapter Plug-AD3020 at The Home Depot
be sure your outlet, cord wire gauge and distance are correctly rated for the load.
__________________
Ricky
2012 F150 Super Crew 5-1/2' bed Ecoboost 4x4 3.73 elec. lock diff. Propride hitch
give life. kidney & pancreas transplant 9/9/06
Ingrid-my unofficial '"World's Oldest Streamer" 1909-2008 R.I.P.
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08-01-2012, 12:24 PM
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#8
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Wise Elder
2010 30' Classic
Vintage Kin Owner
South of the river
, Minnesota
Join Date: Dec 2009
Posts: 4,169
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I've had somewhat better luck with the "dogbone" style ones that have an 18" or so cord between the two connectors.
It helps to use contact grease on the connector blades. I use the stuff sold at home centers for aluminum wire connections, because it's cheap and readily available.
__________________
To learn to see below the surface, you must adjust your altitude
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08-01-2012, 12:32 PM
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#9
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Rivet Master
2006 25' Safari FB SE
St. Cloud
, Minnesota
Join Date: Aug 2003
Posts: 13,280
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Member Chuck has a driveway 20A circuit installed and finds that works well, although he makes sure family & guests do not use other high-draw appliances like microwave or hair dryer while the AC is active.
This is the prong style for a 20A outlet and it can take both 15A & 20A (horizontal neutral) style plugs -
Of course a 15A or lower appliance will not draw more current than it needs.
Air-Quarius, fer sure I can live with your 20A explanation. That makes sense now. Why don't you google "20A 30A adapter" -- they might be beefier. [on edit: oops, richinny already was going this direction.]
Another issue for users is length of run for extension cords. Longer runs require a much larger wire gauge to not lose power. I looked at a 70s Overlander once. The owner had it plugged in with about a 75' 15A extension cord and was selling the unit as-is because the air conditioner had burned out. Rest of the story? ....this was the second AC the O'lander had gone through.
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08-01-2012, 12:33 PM
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#10
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Wise Elder
2010 30' Classic
Vintage Kin Owner
South of the river
, Minnesota
Join Date: Dec 2009
Posts: 4,169
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Quote:
Originally Posted by CanoeStream
You are running your AC from this adapter in the driveway?
I remember when soldiermedic had an adapter like that melt on him. That is when using a 15A-30A adapter can turn dangerous.
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The adapters usually melt because of oxidation on the contact surfaces. Contact grease helps. Sometimes they fail because they're cheaply made and the internal components aren't tightly attached. While high current will contribute to the problem, it is possible to run 20A through these connectors without producing excessive heating.
Quote:
A 3-prong household outlet can supply 15 amps.
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Many are on 20a circuits. The outlet will be marked 15a if it has the standard blade configuration without the T slot on the left (neutral) side, because they are required to have the T slot to get a 20a rating.
Quote:
An AC compressor at start-up will try to draw just over 20 amps. It is hard on the compressor to try to run the AC from a 15A plug and may result in shortened lifetime for your AC. Don't do it.
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The extent to which this is a problem is widely exaggerated.
Like AIR-quarius, I am frequently camped in locations with dodgy shore power and have to use the 20a adapter and long cords. If it's summer I run the A/C and have to do things like run the fridge on gas to keep the load small.
__________________
To learn to see below the surface, you must adjust your altitude
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08-01-2012, 12:43 PM
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#11
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Wise Elder
2010 30' Classic
Vintage Kin Owner
South of the river
, Minnesota
Join Date: Dec 2009
Posts: 4,169
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Quote:
Originally Posted by CanoeStream
Air-Quarius, fer sure I can live with your 20A explanation. That makes sense now. Why don't you google "20A 30A adapter" -- they might be beefier.
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I've never seen one with the sideways terminal (that fits into the T) although it would be easy enough to make one up. But the terminal configuration doesn't improve the current handling ability, it's just a rarely used mechanism intended to make sure that an appliance that requires a 20 A circuit can't be plugged into a 15 A circuit.
Quote:
Another issue for users is length of run for extension cords. Longer runs require a much larger wire gauge to not lose power. I looked at a 70s Overlander once. The owner had it plugged in with about a 75' 15A extension cord and was selling the unit as-is because the air conditioner had burned out. Rest of the story? ....this was the second AC the O'lander had gone through.
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I have a 75' extension cord made with #6 wire that I use when I am dealing with dodgy shore power.
Here's a photo from a campground where I stay sometimes. They have several of these posts around 200' apart so the cord runs can be long. All the outlets are 20a and each one has its own breaker.
__________________
To learn to see below the surface, you must adjust your altitude
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08-01-2012, 12:48 PM
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#12
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Rivet Master
1970 27' Overlander
Espanola
, Full Timer
Join Date: Jun 2007
Posts: 1,753
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Lots of colorful wire there lol
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08-01-2012, 01:20 PM
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#13
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Rivet Master
Southwestern
, Ohio
Join Date: Nov 2006
Posts: 1,671
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Quote:
Originally Posted by Jammer
I've never seen one with the sideways terminal (that fits into the T) although it would be easy enough to make one up. But the terminal configuration doesn't improve the current handling ability, it's just a rarely used mechanism intended to make sure that an appliance that requires a 20 A circuit can't be plugged into a 15 A circuit.
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True, but the typical 20 A rated outlet also has more contact area and higher contact pressure than the typical 15 A rated outlet. I have seen "el cheapo" 15 A rated outlets that only made contact with one side of the plug blade.
.
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08-01-2012, 01:25 PM
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#14
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Wise Elder
2010 30' Classic
Vintage Kin Owner
South of the river
, Minnesota
Join Date: Dec 2009
Posts: 4,169
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We were discussing the adapter which has a plug on the 15/20A side of things. The receptacle is out of the traveler's control in this situation, you have to take whatever you get.
__________________
To learn to see below the surface, you must adjust your altitude
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08-01-2012, 02:29 PM
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#15
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Rivet Master
1995 30' Excella
Bowie
, Maryland
Join Date: Apr 2005
Posts: 2,345
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Quote:
Originally Posted by Jammer
I've never seen one with the sideways terminal (that fits into the T) although it would be easy enough to make one up. But the terminal configuration doesn't improve the current handling ability, it's just a rarely used mechanism intended to make sure that an appliance that requires a 20 A circuit can't be plugged into a 15 A circuit.
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I have one (30 amp RV female to 20 amp male) - got it off Amazon for a couple bucks last summer. I can't find it at the moment but I think they still have it.
__________________
1995 Airstream Classic 30' Excella 1000
2014 Ram 2500 Crew Cab with Cummins 6.7L Diesel
Sold but not forgotten: 1991 Airstream B190
Sold: 2006 F-250 6.0L Powerstroke Supercab
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