So I'm trying to run 4k watts in flower and 1k watts in veg. I have a dedicated 30-amp 240v dryer outlet that I will be plugging these 5 1k watt lights into to run off 240v, which comes out to be 23-24 amps. Which is 80% of the circuit running continuously, so it shouldn't flip the breaker if I'm correct. I have a 20 amp breaker that comes into the rooms as well and I plan on also running 16 amps continuously, so the same goes with the breaker in that it shouldn't flip. I also then have a 15 amp circuit which will run 9 amps continuously for these rooms and the remaining amps for house lights, always keeping it limited to 80% of the circuit. I also determined the load of the other random things (modem,router,fridge,computers,dishwasher) that will possibly be continuously running during peak usage to be about 21 amps. Then the stove has it's 50 amp breaker as well. My question is:
I've got an old ass panel that has no main breaker (no disconnect anywhere) and I'm not entirely sure of the ampacity of the service entrance cable. The only limiting factor of the electrical service that I could find was that the service panel says "70 amp mains". Does this mean that there are two 70 amp legs coming in supplying the house with 140 amps of main service,
OR is the combined amperage coming into the panel distributing 70 amps main service. I had a friend that's an electrician tell me it was #6 gauge CU service entrance wire.
Essentially, I'm trying to determine what the limiting factor of the electrical service is compared to the possible continuous load that I might be demanding.
If I'm pulling all of this during flowering:
-24 amps on 30 amp dryer circuit
-16 amps on 20 amp circuit
- 9 amps on 15 amp circuit
Totaling to be:
49 amps possibly continuous during Flowering
If my main service really is only 70 amps and the continuous load can only be 80%, which is 56 amps, that only leaves 7 amps free. It also only leaves 21 total amps free, correct? Therefore, if I was to run 20+ amps from the range, not flipping that 50 amp breaker, and be pulling over 70 amps total...would that likely lead to a fire or would the main panel somehow magically without a main breaker limit the panel from pulling more than 70 amps?
I know probably not all of the amps during flowering will be pulled continuously, but I'm just trying to be extra safe without a main breaker so I don't overheat the wires. The 16 and 9 amps separate from the lights will power fans, A/C, dehumidifier/humidifier. So, some won't be running at max capacity all the time.
Thanks so much! This has been driving me crazy and it's preventing me from taking on something that I've been waiting 2 years for!
