polarity

[gordysolar]

Is only way to test polarity with voltage meter and see if - sign cones up?
Also can u install into rcd side of house fuse box with other circuits in it?



Gordon

 

[Deleted member 26818]

No, you would operate any switches, with your meter connected.
You should minimise any inconvenience that would be caused by a fault on one circuit, affecting other circuits.

 

[telectrix]

- sign only shows if incorrect polarity on a dc supply.

don't understand the second part of your question.

 

[GaryM]

An inverter can take up to 5 seconds to shut down so if it shares a common RCD with other circuits that rely on a disconnection time of 0.4s then you'll create a very dangerous situation.

 

[JulianC]

Is only way to test polarity with voltage meter and see if - sign cones up?

Yes, assuming you are talking about the DC side

Also can u install into rcd side of house fuse box with other circuits in it?

Depends on what the G83 test certificate for the inverter states as the shut down time in the event of loss of mains - can be anything up to 5 secs. So, if any of those RCD protected circuits require a disconnection time less than the shut down time of the inverter, no you can't fit it on the RCD side.