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Author Topic: Joining mains neutral to inverter/charger output neutral  (Read 4244 times)
Clive F
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Posts: 128

« 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.

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.

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.

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.

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).

Wise words from Nickel.

Which ones?
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