I've currently got a 3hp compressor that is run off the garage electrics. From what i can tell the garage is supplied by a radial circuit, via a 20amp MCB along fairly hefty armoured cable. I've wired in a 16amp socket in the garage and this is what the compressor runs off..
I'm now looking at getting another compressor as I want to do some sandblasting and don't think my single unit is going to have enough oomph.(it's rated at 10 cfm FAD)
I'm guessing that I won't be able to run both compressors from the same circuit as if they both kick in at the same time then the draw is going to be too much for the circuit and something is going to give.
So the ideas I came up with to run the both at once would be
1. Swap the 20A MCB for a 32A - guessing this isn't really acceptable as don't know what the wiring is rated at.
2. Run an extension lead from the house ring main to the garage. The new compressor runs off a standard 13 amp socket. Is this likely to cause any problems ?
3. Try and set the compressors to kick in at slightly different pressures. Presumably it's just at start up that causes problems once going they should both run together OK ?
Any views or suggestions most welcome