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Shipping container Cabin grounding.

checkthisout

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Sep 5, 2008
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5,232
Shipping container for sleeping, cooking etc.

It looks like my setup should be similar to an RV so my plan was as follows.

1) Floating neutral in panel.

2) In the inverter, the Ground and neutral are bonded.

3) The generator I will be using has a floating neutral.

4) All accessible outlets will be GFCI protected.

Questions:

1) Should the battery ground -12V to the shipping container frame?

2) Should there be ground rod(s)?

3) Any foreseeable safety issues with the generator setup (floating neutral in gen and in panel)

4) If I end up using an "all in one" inverter/charger/transfer switch rather than seperate components, any issues with the floating neutral in the panel, bonded neutral in inverter/charger, battery (12V) system grounding and floating neutral in gen?

5) Any issues with grounding the panel to the shipping container?
 
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wyliesdiesels

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Modesto, CA
I would have the bonded neutral in the panel NOT the inverter.

And yes i would install ground rods.

what is the transfer switch for?
 
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checkthisout

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I would have the bonded neutral in the panel NOT the inverter.

And yes i would install ground rods.

what is the transfer switch for?

Unfortunately the inverter does not allow you to choose one way or the other.

The one I am looking at has the charger (inverter/charger) incorporated into it, maybe that's why?

Transfer switch will toggle back and forth between inverter and shore (generator) power.
 
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checkthisout

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Messages
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I would have the bonded neutral in the panel NOT the inverter.

And yes i would install ground rods.

what is the transfer switch for?

In edit:

The inverter has the transfer switch built in and automatically switches between a floating and bonded neutral.

When connected to shore power the neutral floats, when in inverter mode the neutral is bonded to ground.

Neat.
 

wyliesdiesels

Well-known member
Joined
Aug 14, 2012
Messages
20,273
Location
Modesto, CA
In edit:

The inverter has the transfer switch built in and automatically switches between a floating and bonded neutral.

When connected to shore power the neutral floats, when in inverter mode the neutral is bonded to ground.

Neat.

gotcha.

then you should be good.

as far as where to wire the ground rods into, it needs to go to where the neutral is bonded.

This makes it difficult in your situation because of the switched neutral.
 
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