Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×

Thread Tools Display Modes
Old 02-17-2022, 07:43 AM   #21
Bus Crazy
turf's Avatar
Join Date: Apr 2013
Location: Colorado
Posts: 2,404
Year: 1993
Coachwork: bluebird
Engine: 5.9 Cummins, Allison AT1545
Rated Cap: 2
Originally Posted by incubus View Post
Turf is 100% right. That's code. Remember to keep neutral bonded till it leaves bus. Bus is like a sub panel
lolol thanks but......

when someone says im right, it is probably a typo.

i started in on looking at generator grounding and wow, it really is a confusing issue. i am no expert, just reading and learning as i go.

i think.... there are 2 kinds of generators.

a floating neutral generator or a bonded neutral generator.

a floating neutral gen is intended to power a sub-panel and seeks a ground neutral bond outside the generator. - likely a 4 wire output, 2 hots, neutral and ground.

a bonded neutral generator is intended to power extension cords, tools, directly, without a sub panel. it provides its own G/N bond for the breakers to function properly. probably has regular 3 prong outlet for an output.

checking for continuity between the ground and neutral with a meter would be the way to tell for sure which one you have.

so...... some of you double e types need to check me on this next part i think.

if i hook a bonded neutral gen to an unbonded rv subpanel, everything should work fine. the bond is at the source.

if i hook a floating neutral gen to an unbonded rv subpanel, the rv subpanel breakers would no longer protect anything from overcurrent. a short inside the rv would cause a hotskin, since there is no path for the current to return to the source.

is that right?

kind of off topic from the op, but e/g bonding is fun

Turfmobile Build Thread
turf is offline   Reply With Quote
Old 02-17-2022, 08:31 AM   #22
Join Date: Dec 2019
Location: Union Bridge Maryland
Posts: 103
Year: 2002
Wouldnt the current return through the neutral to the Generator? Only time the ground comes into play really is if theres a short. An yes the rules for hooking up generator very confusing. Check continuity between ground and neutral at generator plug.
incubus is offline   Reply With Quote
Old 02-17-2022, 11:36 AM   #23
Bus Crazy
Join Date: Jun 2016
Location: Orange County, CA
Posts: 1,386
Year: 1990
Coachwork: Crown, integral. (With 2kW of tiltable solar)
Chassis: Crown Supercoach II (rear engine)
Engine: Detroit 6V92TAC, DDEC 2, Jake brake, Allison HT740
Rated Cap: 37,400 lbs GVWR
Originally Posted by incubus View Post
Neutral and ground are tied together in the generator. I have two female plugs in bus. One goes to land line the other to generator. Pick your source and plug in. Back when I got into converting buses automatic change over was way to expensive. Makes it impossible to plug into two sources at same time.
That's also what I've done. I've heard of automatic change-over switches failing so that two inputs were connected at the same time, resulting in much expensive smoke from the inverter or generator. D'oh! I have three AC female receptacles, one each from the inverter, shore and generator, with a male plug to the AC main panel; in addition I made the cable for the inverter's built-in 12V charger only long enough to plug into the shore and generator receptacles, so it's impossible to inadvertently plug it back into the inverter's own AC output. I normally like pleasing circularities, but not in this case! KISS.

Iceni John is offline   Reply With Quote
Old 02-20-2022, 03:02 PM   #24
Bus Nut
Join Date: Jun 2021
Location: Baja often, Oregon frequently
Posts: 437
Year: 1996
Coachwork: Our hot little grubbies...
Chassis: Ford CF8000 ExpeditionVehicle
Engine: Cummins 505ci mechanical
Rated Cap: Five Heelers
Originally Posted by TheHubbardBus View Post
Aside from the common arrangement of RV hook-ups, do you or anyone else know if there's a practical (safety-based) reason for this requirement?
If I was to speculate, I might think mailboxes are on the passenger side, as are trees and bicyclists...
... creating a potential vulnerability for vehicle-mounted hook-up caps and doors.
For this reason, I think ladders on the curb-side -- carrying surf-boards, BBQs, alien life-forms from distant galaxies -- is an invitation for scrapage.
Word For The Day -- scrapage
v -- to lose chunks by impact or rubbing
n -- stray parts littering the road
Used in a sentence -- "Those alien life-forms from a distant galaxy endured that scrapage nicely... although by the amount of their scrapage mushed into the building, I bet they wish that ladder was on the driver side!"
LargeMargeInBaja is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 05:49 PM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.