Quote Originally Posted by CanGroIt
So I came across a power cost chart and it mentioned that you shouldn't draw more than 75% of the rated amps of the circuit. So here is my question- my grow space has a 16 amp circuit. I have 130w of cfl which draws about 1.5 amps. A blower that draws 1.2 amps at full power. And a 1k HPS lamp that draws 9 amps. A couple smaller fans that probably draw another amp. So that's about 12-13 amps that I will be drawn.

Is drawing 13 amps from a 16 amp circuit too risky? Anyone know an electrician they can ask? Thanks ahead.....
Hey,
I'm an electrician and to be honest I find it had to imagine a 16amp trip switch in the board. 10 amp for lights, 20 amp for sockets and wall heaters. 32 amp for cooker and 40 amp for showers. That's how a board is set up in my mind. If you have a 16amp trip switch then you can up it to 20 amp provided the cables in the circuit is 2.5mm twin and earth. i.e. you will see a brown, blue and bare middle earth wire. The brown and the blue need to be 2.5mm squared 'each'. Then the socket circuit has been wired correctly. Have an electrician call round to check the circuit and take out the 16amp and replace it with a 20amp. Don't do this yourself, there will be a lot of live copper in the fuse board. At least then you can be sure your lights wont go out while you are gone.
Good luck with it
Silent Leprechaun