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10-31-2006, 01:59 PM
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#1
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Patriotic
1973 23' Safari
North of Boston
, Massachusetts
Join Date: May 2002
Posts: 4,546
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30Amp Hookup @Home
I'd like to install a 30amp hookup at the house for the camper. The spot I have in mind is about 50ft from the foundation of my house...wire run to the panel in the basement would be ~70ft. The driveway I want to bury the line in is currently gravel...but I'm having it paved...want to get the wires in before that happens...then have an electrician make the actual connections.
The question: what kind of wire? I was planning on digging a trench and laying conduit (pvc) for the whole length of the run, so that it can be easily replaced in the future if necessary. UF cable seemed appropriate at first, but poking around on some other websites, I've seen it said that it is rather difficult to pull through conduit. (its also really expensive!). What else would be appropriate?
I thought I read that you could use 3 seperate conductors of type THWN, THW, or TH...do you just buy 3 seperate wires with the appropriate colored insulation and twist 'em together yourself? (or just pull them through the conduit?).
any other tips?
__________________
Air:291
Wbcci: 3752
'73 Safari 23'
'00 Dodge Ram 1500 4x4 QC
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10-31-2006, 02:18 PM
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#2
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Rivet Master
2003 22' International CCD
Kiln
, Mississippi
Join Date: Dec 2005
Posts: 2,779
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Chuck,
If you buy the single conductor wire it comes in black -- just get the colored electrical tape (red, white, black and green) and mark each end with a few wraps - about 6" from each end. If you use conduit then you won't need direct burial - just buy the THHN and your good - for that length I would think you should go with 8 guage but you will get better advice on this after I post. Use grey PVC pipe conduit and get the correct raduised 90's not the tight ones. Have a pull LB on the outside of the house to pull wires, maybe an outside power off switch.
__________________
Michael & Tina with Layla and Preston BZ The family has grown. 2003 22' INTERNATIONAL CCD
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10-31-2006, 02:31 PM
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#3
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Rivet Master
1979 23' Safari
1954 29' Liner
Orange
, California
Join Date: Feb 2005
Posts: 3,850
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I had a 30 amp outlet installed in my garage. The location is about 60 feet from the electric panel. My electrician used 10 guage romex which is has a orange/red covering. It seems that each guage of romex comes in a different color now. An electrician can tell you what guage to use. You can purchase single strand in black, red and white and you should so that there will be no confusion as to which wire is which. You can put the wire in the conduit before it is buried or a good electrician can pull the wire if you put a pull rope in the conduit.
Bill
__________________
Bill Kerfoot, WBCCI/VAC/CAC/El Camino Real Unit #5223
Just my personal opinion
1973 Dodge W200 PowerWagon, 1977 Lincoln Continental, 2014 Dodge Durango
1979 23' Safari, and 1954 29' Double Door Liner Orange, CA
https://billbethsblog.blogspot.com/
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10-31-2006, 02:50 PM
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#4
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Rivet Master
Hampton
, New Hampshire
Join Date: Oct 2005
Posts: 2,126
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During some remodeling a few years ago I had an electrician install a new panel in our garage. He tapped into our main panel and ran the wire to the garage - wired pretty much as Clancyboy described.
The benefit of this is I have a full panel available for future use, and today I have 50 amp, 30 amp and a quad 20 amp boxes outside mounted - just outside of the garage. This way, no fishing cords under the gargae door.
At the same time, I had our "clean out" cap moved close to the driveway, so I can dump. If you are going to pave your driveway, this may come into play for you as well. This adds a huge benefit for getting the trailer ready for camping, as well as returning.
Please excuse the clutter...
__________________
Brad (The Slowsky's)
2019 Airstream Classic 30RBT, 2021 Ford F350 King Ranch 4X4 w/6.7L Diesel, Hensley, ACI #1313
travelwiththeslowskys.com
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10-31-2006, 03:09 PM
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#5
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Patriotic
1973 23' Safari
North of Boston
, Massachusetts
Join Date: May 2002
Posts: 4,546
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Quote:
Originally Posted by clancy_boy
Chuck,
If you buy the single conductor wire it comes in black -- just get the colored electrical tape (red, white, black and green) and mark each end with a few wraps - about 6" from each end. If you use conduit then you won't need direct burial - just buy the THHN and your good - for that length I would think you should go with 8 guage but you will get better advice on this after I post. Use grey PVC pipe conduit and get the correct raduised 90's not the tight ones. Have a pull LB on the outside of the house to pull wires, maybe an outside power off switch.
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I checked an online voltage drop calculator, and it said there would still be >110volts...can't remember exactly, but the drop wasn't much.
I saw the long sweep elbows on the shelf...also, they had preformed off-sets, but the offset isn't much. There's going to be a problem transitioning from the foundation wall of the house to the trench...the foundation's footing is nearly exposed by the walk-out basement door. I need to dig the trench deeper than this level..but the footing sticks out 6" or so...I'll need something flexible to make this transition. or 3 elbows. (out--down--out again into the trench).
I was planning on running a water line, and maybe some coax, too. but no sewer is available...septic tank, and its "uphill' from where I park the camper.
__________________
Air:291
Wbcci: 3752
'73 Safari 23'
'00 Dodge Ram 1500 4x4 QC
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10-31-2006, 03:24 PM
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#6
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Rivet Master
2003 22' International CCD
Kiln
, Mississippi
Join Date: Dec 2005
Posts: 2,779
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Local codes require 24" of trench depth for power. You may want to check for your area. They make 45 angles which can get you around the footing on your slab. Keep the number of 90's to a minimum. Makes pulling wire allot easier - I think 3 is a max and at that it's still tough. Pull a nylon cord (small diameter) for future wire pulls if necessary. BTW - much easier to put wire in pipe before gluing up, been there done that - 400 feet worth.
__________________
Michael & Tina with Layla and Preston BZ The family has grown. 2003 22' INTERNATIONAL CCD
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10-31-2006, 03:26 PM
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#7
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Rivet Master
1976 25' Caravanner
Vintage Kin Owner
Campton
, New Hampshire
Join Date: Feb 2006
Posts: 1,113
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Chuck , definately go with the conduit and not direct burial , you will thank yourself later . You may not wnat to go all the way into the foundation until you are , or electrician is ready to pull the wires , it is sometimes hard to pull the wire thru the bends . As long as the conduit is in the rest can be done later , even the pull cord . Make sure you glue the joints so the conduit doesn't fill with water . Don't use the same conduit for all , you can use black heavy wall water line for coax and phone lines . Good luck
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10-31-2006, 03:27 PM
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#8
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4 Rivet Member
1977 24' Argosy 24
Inverness
, Florida
Join Date: May 2006
Posts: 264
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Hi chuck, You can make your own sewer hookup with a plastic 55 gallon barrel with a 2in digester pump to pump it up hill to your septic tank. just ask a plumber or septic tank installer.it would be called a lift station just like in the cities only smaller...
Bob
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10-31-2006, 03:38 PM
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#9
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Aluminut
2004 25' Safari
.
, Illinois
Join Date: Feb 2003
Posts: 10,477
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Chuck,
Talk to John HD. He's done a few and really know his stuff.
One suggestion I have would be to follow your instinct to place a conduit (outdoor rated) into the ground. If it's a wider pipe, it would be easier to pull cables. Even if you pave the area, you can still easily add circuits, enhance them, or yank the whole line and start over. If you burry it once using Romex or not using a conduit (PVC, galv pipe, etc), you'll always be digging if you add or repair to it later. I know it's hard to fathom needing more, but who knows, you may come across that magical unit that need a 50a connection, or you get a second Airstream and need two 30a outlets....what ever you may need, putting a conduit in the ground is insurance for the things you never knew you always needed.
I have a 1.5" galv metal conduit going from the house to the garage. Electrican thought I was nuts unitl the day I put a seperate 30a circuit in for the Airstream using the same conduit. One way around the issue of hard to pull is to install a pull string at install, then a pull string following each additional cable pull.
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10-31-2006, 03:43 PM
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#10
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Aluminut
2004 25' Safari
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, Illinois
Join Date: Feb 2003
Posts: 10,477
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PS- if you go the route of using a pull string, use nylon type rope. It can take the moisture (and not rot) and is not a conductor of electricity.
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10-31-2006, 03:43 PM
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#11
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Rivet Master
1967 26' Overlander
Huntsville
, Alabama
Join Date: Dec 2003
Posts: 3,018
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If less effort appeals to you
Quote:
Originally Posted by bobchevy89
..You can make your own sewer hookup with a plastic 55 gallon barrel with a 2in digester pump to pump it up hill to your septic tank...
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A macerator is a bit easier. I hear that the new ones will even pump uphill with gusto.
Tom
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10-31-2006, 03:56 PM
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#12
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Rivet Master
1973 23' Safari
1977 23' Safari
2018 25' Flying Cloud
Palmer Lake
, Colorado
Join Date: Oct 2005
Posts: 4,092
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Chuck, if you buy 3 wires, the ground doesn't have to be as big a guage as the neutral and hot. I don't know the ratio, but it would be slightly less expensive and easier to pull.
Zep
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10-31-2006, 04:17 PM
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#13
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Rivet Master
1967 26' Overlander
Huntsville
, Alabama
Join Date: Dec 2003
Posts: 3,018
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I agree with Zep
Quote:
Originally Posted by Zeppelinium
...the ground doesn't have to be as big a guage as the neutral and hot...
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Maybe a real electrician can comment, but I believe that for a detached location (power post by the side of the driveway), local codes may insist on a ground connection at the post itself.
But beyond that, I do not think it is safe to step down more than one gauge of wire is sizing the ground. Remember, if the HOT wire should come in contact with ground, you do not want it to melt the ground wire before the breaker trips.
Tom
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10-31-2006, 04:33 PM
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#14
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4 Rivet Member
2007 25' International CCD
Arlington
, Virginia
Join Date: Aug 2006
Posts: 323
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Quote:
Originally Posted by nilesrob
During some remodeling a few years ago I had an electrician install a new panel in our garage. He tapped into our main panel and ran the wire to the garage - wired pretty much as Clancyboy described.
The benefit of this is I have a full panel available for future use, and today I have 50 amp, 30 amp and a quad 20 amp boxes outside mounted - just outside of the garage. This way, no fishing cords under the gargae door.
At the same time, I had our "clean out" cap moved close to the driveway, so I can dump. If you are going to pave your driveway, this may come into play for you as well. This adds a huge benefit for getting the trailer ready for camping, as well as returning.
Please excuse the clutter...
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Brad, was just wondering why the need for a 50amp outlet and 20amp outlets? I thought Airstreams only required a 30amp outlet.
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10-31-2006, 04:38 PM
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#15
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Retired Moderator
1992 29' Excella
madison
, Wisconsin
Join Date: Aug 2002
Posts: 4,644
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chuck
non metalic conduit will make an easy pull. don't worry about a string, i can tell you how to put one in after it is installed.
glue all the joints well and use sweep elbows.
got a shop vac?
john
__________________
you call them ferrets, i call them weasels.
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10-31-2006, 05:53 PM
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#16
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Retired.
Currently Looking...
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, At Large
Join Date: Jun 2003
Posts: 21,276
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If you wanna gete fancy...
Will local code allow coax to be run in the same conduit as power wires? If so, you can run TV cable to your trailer's parking location. You can then catch the Patriots' game on the TV while working on your trailer.
__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
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10-31-2006, 05:58 PM
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#17
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Rivet Master
1967 26' Overlander
Huntsville
, Alabama
Join Date: Dec 2003
Posts: 3,018
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Quote:
Originally Posted by overlander63
Will local code allow coax to be run in the same conduit as power wires? ...
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I don't think it will.
But I ran 100 amp service & coax & telephone through a 3-inch, underground conduit to my shop, and have had no problems after seven years.
Tom
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10-31-2006, 06:02 PM
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#18
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Rivet Master
2003 22' International CCD
Kiln
, Mississippi
Join Date: Dec 2005
Posts: 2,779
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I doubt it - power conducting through the power lines may cause interference with both phone and tv in such close poximity. The main reason is the possibility of a short across the lines and killing all the equipment in the house, trailer and out to the pole unless there is a link to disconnect when voltage is detected. Cheeper to run those lines in normal white (cheep) pvc, just use the electrical 90 degree sweeps to pull the lines in that too. 100 feet of pipe with connectors will be less than $30.
__________________
Michael & Tina with Layla and Preston BZ The family has grown. 2003 22' INTERNATIONAL CCD
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10-31-2006, 06:25 PM
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#19
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Retired Moderator
1992 29' Excella
madison
, Wisconsin
Join Date: Aug 2002
Posts: 4,644
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Quote:
Originally Posted by overlander63
Will local code allow coax to be run in the same conduit as power wires? If so, you can run TV cable to your trailer's parking location. You can then catch the Patriots' game on the TV while working on your trailer.
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no.
john
__________________
you call them ferrets, i call them weasels.
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10-31-2006, 06:37 PM
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#20
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Retired.
Currently Looking...
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, At Large
Join Date: Jun 2003
Posts: 21,276
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Quote:
Originally Posted by john hd
no.
john
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I didn't think so. It was an idea, anyway...
__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
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