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08-01-2008, 02:06 AM
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#1
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Senior Member
Join Date: Feb 2005
Location: everywhere
Posts: 428
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The male end of my power cord (the part that plugs into the pole) is cracking and I want to replace it. I ordered the part, but I want to make sure that what I plan to do is correct.
In order to remove the old head, I was going to use a hacksaw just below the head. I would expect to find 4 wires... black, red, white and green. I would think the black and red would go to the side prongs, the green is ground and would go to the round prong at the top, and the white is the neutral and goes to the bottom prong. I would also seal all places where water might get in with silicone.
Any flaws or "gotchas" in there?
__________________
Jerry & Shirley Friedman
Dusty the Yorkie, Cricket the Shorkie
2005 38' Alpine Limited, 2004 Chevy Trailblazer
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08-01-2008, 02:06 AM
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#2
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Senior Member
Join Date: Feb 2005
Location: everywhere
Posts: 428
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The male end of my power cord (the part that plugs into the pole) is cracking and I want to replace it. I ordered the part, but I want to make sure that what I plan to do is correct.
In order to remove the old head, I was going to use a hacksaw just below the head. I would expect to find 4 wires... black, red, white and green. I would think the black and red would go to the side prongs, the green is ground and would go to the round prong at the top, and the white is the neutral and goes to the bottom prong. I would also seal all places where water might get in with silicone.
Any flaws or "gotchas" in there?
__________________
Jerry & Shirley Friedman
Dusty the Yorkie, Cricket the Shorkie
2005 38' Alpine Limited, 2004 Chevy Trailblazer
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08-01-2008, 02:09 AM
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#3
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Senior Member
Join Date: Mar 2001
Location: AMESBURY MA.
Posts: 2,105
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I use this website for wiring. http://www.myrv.us/electric/
__________________
Frankie
2006 FOUR WINDS HURRICANE 34N F-53
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08-01-2008, 02:33 AM
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#4
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 4,923
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Sounds like a solid plan to me. One suggestion, instead of silicone, which is notorious for not adhering tightly to certain materials, I use Goop-RV. Read the directions closely then make your own decision; Goop-RV is really great stuff for certain things, like this, but do not allow it to contact your EPDM roof covering or some plastics, bad things happen.
__________________
"As nightfall does not come at once, neither does oppression. In both instances there is a twilight where everything remains seemingly unchanged. And it is in such twilight that we all must be aware of change in the air - however slight - lest we bec
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08-01-2008, 03:51 AM
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#5
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Senior Member
Fleetwood Owners Club Solo Rvers Club
Join Date: Dec 2007
Location: Las Vegas NV
Posts: 1,055
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If your going to replace the plug with one of the ones that have a handle for easy removel... Make sure it will FIT THROUGH the bay access opening.
__________________
1999 Fleetwood Bounder 32H Las Vegas  Nevada No Dog * No Cat * No Co-Pilot
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08-01-2008, 06:00 AM
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#6
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Senior Member
Join Date: Nov 2001
Location: Raymond, Washington
Posts: 305
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Recently bought 50A plug at Lowes to make a power pedestal tester.
http://www.myrv.us/electric/Pg/tester_50amp.htm
The plug is well constructed and has wiring instructions included. I used JB weld on interior part of clamp area to help the screws secure it to the cable.
__________________
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08-01-2008, 06:05 AM
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#7
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Senior Member
Join Date: Feb 2005
Location: everywhere
Posts: 428
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Frankie... thanks for the link to the www.myrv.us website... that's interesting. Acccording to that writeup it sounds like when you plug in to a 50 amp outlet you actually get 100 amps (12000 watts @ 120 V). I have to think about that one.
Ray... I use Goop-RV (or RV Goop)... good stuff... I wouldn't have thought of using that for this... thanx for the suggestion
Rick...  I actually did measure the hole when I ordered the part (from http://www.pplmotorhomes.com). It's close. But the one with the handle was on sale and apparently better quality than the one without the handle. I decided if it didn't fit I'd trim the handle.
__________________
Jerry & Shirley Friedman
Dusty the Yorkie, Cricket the Shorkie
2005 38' Alpine Limited, 2004 Chevy Trailblazer
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08-01-2008, 10:59 AM
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#8
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Community Administrator
Newmar Owners Club
Join Date: May 2000
Location: Newark, DE
Posts: 13,893
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Acccording to that writeup it sounds like when you plug in to a 50 amp outlet you actually get 100 amps (12000 watts @ 120 V). </div></BLOCKQUOTE>
Indeed you do get 100 amps total.
If you look at the circuit breakers on 50 amp service, there will be two.
__________________
Adios, Dirk - '84 Real Lite Truck Camper, '86 Wilderness Cimarron TT, '07 DSDP, '11 Virtual RV
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08-02-2008, 04:09 AM
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#9
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Senior Member
Join Date: May 2008
Posts: 173
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True, each leg of the circuit does provide 50 amp capacity, as is indicated by the circuit breaker. However.....the #6 white common wire is only rated for 50 amps total, not 100 amps.
A continuous 100 amp load could, and probably would, cause overheating of the common.
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Ken
2006 34' Limited
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08-02-2008, 04:27 AM
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#10
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Community Administrator
Newmar Owners Club
Join Date: May 2000
Location: Newark, DE
Posts: 13,893
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The 120 volt legs are out of phase with each other, so the neutral does not carry over 50 amps.
__________________
Adios, Dirk - '84 Real Lite Truck Camper, '86 Wilderness Cimarron TT, '07 DSDP, '11 Virtual RV
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08-02-2008, 05:42 AM
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#11
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Moderator Emeritus
Texas Boomers Club
Join Date: Jul 2000
Location: Cypress, Texas USA
Posts: 6,626
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As Dirk said, L1 and L2 are 180 degrees out of phase - that's why a voltmeter reading L1-L2 will indicate 240VAC RMS. This means the neutral leg current is subtractive, not additive. Therefore, if both L1 and L2 are carrying 50 amps, neutral leg current is 50 - 50 = 0 amps. The maximum neutral leg current would occur when one hot leg was carrying 50 amps and the other 0 amps. In that case, neutral leg current is 50 - 0 = 50 amps.
Rusty
__________________
2011 Dodge Ram 3500 Laramie Cummins 6.7L/6 speed auto/4.10LS crew cab LB dually
2004 Doubletree Mobile Suites 36RE3 5th wheel
Come join us on a TEXAS BOOMERS rally!
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08-02-2008, 07:02 AM
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#12
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Senior Member
Join Date: May 2007
Location: Northeast PA
Posts: 993
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Not to hijack this thread but does anybody have an idea where I can get the female 50 Amp end?
__________________
Bob & Peg - 2011 Phoenix Cruiser 2552S
"In God we trust" to preserve our country and bring our Troops safely home.
Carry on, regardless..................
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08-02-2008, 07:17 AM
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#13
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Community Administrator
Appalachian Campers
Join Date: Jan 2000
Location: Buladean, NC
Posts: 8,154
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RVUpgrades carries them, click here.
__________________
'11 GMC Acadia SLT AWD
'11 GMC Sierra 1500 4x4 Extended Cab
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08-02-2008, 01:11 PM
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#14
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Senior Member
Join Date: May 2007
Location: Northeast PA
Posts: 993
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Thanks Hitch.
__________________
Bob & Peg - 2011 Phoenix Cruiser 2552S
"In God we trust" to preserve our country and bring our Troops safely home.
Carry on, regardless..................
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