I bought a house from the early 80s and I'm trying to figure out how much amps I can use safely, if it is possible to add air conditioning on the current electric system, and in general if the current situation is safe.
There is one main panel (first picture) and a "kind of panel" in the garage (second picture).
From what I understand, the left thing is the main switch and is rated 80 Amps.
Does that means that this is the maximum that can be used at the same time?
I assume the two residual current device on the right are protecting the light and power point breakers with the green labels, but since all the green label breakers adds to 80 Amps, where does the extra 80 amps of the 3 red label breakers (garage 32A, stove 32A, solar HWS 16A) come from?
Does it means I'm pulling 160 Amps from a 80 Amps main switch? (if that's the case, is it safe?).
Here I think there is a residual current device for 40A and 3 fuses. I assume those are connected to the Garage breaker in the main panel (which is 32A, not 40. Is this safe too?)
What I'd like to know is:
- First, is this setup safe?
- How much amps can I pull from each power point (this is an issue since there are only 2 of them in most rooms, and I suspect they are both wired together since they are always next to each other)
- On the garage "panel", the marking says 8A for lights and 16A for each power point, but the installed fuses lists the opposite; should I switch them?
- We are looking into adding Air Conditioning, and the installer recommends installing 7 split systems, each of them requiring its own breaker (5 need 10A, 2 need 20A). That's 90 extra amps. Can this be added into this installation? and if it cannot what would be the best option?
Not sure if it helps, but we are in Australia (240V, 50Hz).