Hi all, I have been reading about and planning for the electrical system. Here are my initial thoughts and some resources I have found helpful. My intent is to keep this as simple as possible. i have some questions embedded and hope some of you won't mind giving advice. here is the link to my build journal: http://tnttt.com/viewtopic.php?f=50&t=64888
1. I anticipate having few AC 110-120 V needs. so all i am installing is an RV cable hatch. I will get a heavy duty outdoor extension cord. I got this one: http://www.ebay.com/itm/like/2313760559 ... noapp=true
i don't think it gets much simpler than this.
2. for the 12 volt DC system, i will have three loads:
- a cabin light (1 amp) http://www.ebay.com/itm/1-NEW-RV-LED-12 ... 1731836311
- a fantastic vent fan (less than 4 amps on high)
- a dual 12 volt usb port (3.1 amps): http://www.amazon.com/Waterproof-Motorc ... ge_o01_s00
For the 12 volt Dc system i will mount a deep cycle battery in a battery box in the tongue box. The fuse block and ground block will also be in the tongue box. I have read that if the fuse block is close in proximity to the battery then a master fuse is not needed. Do you agree or think this is true? If i get a bunch of different answers i will probably go with installing one.
The wire length for any of the three loads will be approximately 15-20 feet. as such i believe the wire gauge needed from each load to the fuse block is 14 gauge (see this thread viewtopic.php?t=11316&highlight= ), but to be on the safe side i will use 12 gauge. Do you see any problem with this?
Grounding the battery. i have seen a lot of differing opinions on this. However, with safety in mind it sounds like grounding to the trailer frame is advisable, so that's what I plan. I have question: if i ground the battery to the frame, i also have to have a negative wire running between the battery and the ground block for the loads correct?
I will buy a battery tender to charge the battery. if there is one you like please let me know.
Finally, because i haven't done this before I plan to have an electrician look at my work. i have kids going in this thing!
Here are some links to resources i found useful in learning about 12 volt.
12 volt in general;
http://www.backwoodshome.com/installing ... ar-system/
http://www.marxrv.com/12volt/12volt.htm
http://www.truckcampermagazine.com/camp ... -the-wire/
http://www.cheaprvliving.com/blog/basic ... t-fixture/
https://www.youtube.com/watch?v=jHjmOJIlcdc
Example of wiring plan:
This is Joanne's...she has a thread in the all thing electrical forum here as well:
http://www.asolidfoundation.com/dd_electrical_1.shtml
http://tnttt.com/viewtopic.php?t=1317
a little about everything:
viewtopic.php?t=11272