Best method to calculate 4 core SWA current rating for two pairs of 1PH line conductors

[westward10]

Just to confirm this cable supplies AC to the inverter then takes generated AC back.

 

[craig1410]

Just to confirm this cable supplies AC to the inverter then takes generated AC back.

That's correct - this is currently what happens locally under my stairs. There are 10mm singles inside of trunking which take power from the DB1 50A MCB via a rotary AC isolator to the inverter AC-In. The inverter AC-Out1 then goes to a changeover switch to DB2 which feeds the majority of the house loads. The changeover switch allows me to effectively bypass the inverter in case of failure or maintenance, and lets me power DB2 directly from DB1 via the same 50A MCB.

So essentially all I'm doing is extending the existing 10mm cables to and from the inverter by 12m or so to relocate the inverter and batteries to the garage. A bit more to it than that obviously but that's the objective.

btw, I see in 537.1.2 it also talks about if the installation or item of equipment or enclosure contains live parts fed from more than one supply then appropriate durable warning labels should be used. So this suggests to me that this is okay as long as it's labelled up.

 

[craig1410]

A picture paints a thousand words so here's an SLD showing my installation and some annotations to show the proposed relocation of the DC equipment to the garage.