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Author Topic: Joining mains neutral to inverter/charger output neutral  (Read 3732 times)
Clive F
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« Reply #15 on: May 06, 2016, 08:39:22 AM »

Without exception
1. You must earth the inverter neutral

This has always been my intention, but I considered the possibility my inverter might preclude it.

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2. You must not switch the earth. You have no way of knowing if the switch fails.
Yes. It would be weird (and unsafe) to have a switched earth.

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3. Follow the wiring regs, not the inverter manual.

Well, while I don't want to go up in smoke, nor do I really want the inverter to go up in smoke, so I do need to take some note.

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Even if your installation is PME, you must not add further connections from grid neutral to earth.

Yes, in an earlier post I observed that it wasn't good practice to re-earth a neutral.

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It would be unusual, but not impossible, to find an inverter that connects the battery to earth. The chassis will be where the mains filters are wired to. A floating chassis ie one where you haven't bonded it to earth, will often sit at 120VAC, at a lowish current. It feels feathery.

Mine seems to encourage locally grounding the chassis, and seems to indicate the chassis is connected to battery -ve (I can measure it one day).

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Wise words from Nickel.

Which ones?
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