My advice is to talk to the OC, not Strata.
And by “Strata” you mean … the strata manager? The strata committee? The strata chair?
Whatever, your intent, this is something that needs to be agreed by a majority of the owners and unless your committee is solidly behind you, go directly to the other owners.
I also wonder if there may be a fire safety element in all of this. Too many, too powerful appliances loading up an ancient wiring system sounds like you are one portable a/c unit away from either a black-out or a blaze.