CosmosRanch
New member
- Joined
- Aug 20, 2016
- Messages
- 1
Greetings, first post. I just passed final inspection on my 8000 watt totally off grid solar system. We live in remote/rural Arizona. Now I need to do some more wiring but want to keep to code, though this part will not be inspected. My battery bank and inverters are in a conex 40’ shipping container; a 48 v battery bank with 24 two volt Rolls Surrette batteries of 1284 amp hours each. The two Outback 3648 inverters supply AC power to a service panel mounted on the outside of the shipping container—from this service panel a buried line runs to our manufactured home (100 amp) eighty feet away. Also at this service panel is a 240 v twist lock plug for the well pump which draws about 1900 watts when running; this heavy cord is about twenty feet long and goes to a junction box which contains circuit breakers for a float switch for an adjacent 2500 gal holding tank and a circuit breaker for a 600 foot underground run to the actual well. Also at this service panel on the conex are 4 standard 120 v plugs, one plug is used for a Grundfos pump which acts as a pressurizing pump taking water from the 2500 gal holding tank and sending it via underground water lines to the home/garden/chickens, etc., it draws about 900 watts when running; this cord to the Grundfos is a heavy duty extension cord going about twenty feet to the Grundfos which is in a small sheltered box next to the large holding tank and well pump junction box.
Basically these two extension cords are simply crossing a driveway and I want to put this wiring into 1.5" conduit that now goes under this driveway. I have an empty 1.5 inch sched 40 grey pipe going from the service panel underground and coming up in the area of the Grundfos pump and the existing junction box for the main well pump. I could put in a new sub panel by the well pump/Grundfos pump with a master circuit breaker and individual circuit breakers for each device, OR, I could just add a 120 v 15 amp breaker into the existing service panel and run its 10 awg wires through the conduit to a junction box by the Grundfos and connect the Grundfos that way. And for the 240 well pump actually disconnect the wires now in place for the twist lock plug at the service panel and change them out to longer 6 awg wires and put those wires also in this same conduit and run the four 6 awg wires out to the new junction box (neutral, 2 hot, ground), and I will remount the twist lock plug at the new junction box and just plug in the well cord there (but I will shorten the well cord from twenty feet to three feet). At the new junction box I will put a standard 120 v plug and plug the Grundfos in there with a shorter cord too. Now comes the complicated part. I want to add three 120 v circuits from the service panel to go into existing one inch sched 40 conduits that originate in the area of the Grundfos; the first line will run north 80’ to put a watering timer in the garden, the second new 120 v circuit will also run north about 80’ to the chicken coop for lighting and frigid winter temps when chicks are around, and the third new 120v line runs also about 80’ to a faucet I need year round and must put heat tape on it for wintertime temperatures. All 120v lines are 10 awg. Since I want to originate these three new 120 v circuit at the existing service panel on the conex here is what will go through the 1.5 inch buried conduit from the service panel to the new junction box 20 feet away by the Grundfos:
240 v will go through (four 6 awg; neutral, 2 hot, ground)
the wires for the Grundfos ( 10 awg, hot and neutral).
The wires for the three new 120 v 15 amp circuits (six wires total; 3 hots and 3 neutrals).
So—is it legal, is it hack work? (The 120 v circuits will pick up their insulated grounds from the 240 v ground which I will anchor to a grounding bar in the new junction box.) I have checked conduit fill limits, and also derating for this much fill, and believe I am ok, what do you think, suggestions welcome. All wire is thhn, Southwire. 90’C rated. Thanks for any input. Cosmos
Basically these two extension cords are simply crossing a driveway and I want to put this wiring into 1.5" conduit that now goes under this driveway. I have an empty 1.5 inch sched 40 grey pipe going from the service panel underground and coming up in the area of the Grundfos pump and the existing junction box for the main well pump. I could put in a new sub panel by the well pump/Grundfos pump with a master circuit breaker and individual circuit breakers for each device, OR, I could just add a 120 v 15 amp breaker into the existing service panel and run its 10 awg wires through the conduit to a junction box by the Grundfos and connect the Grundfos that way. And for the 240 well pump actually disconnect the wires now in place for the twist lock plug at the service panel and change them out to longer 6 awg wires and put those wires also in this same conduit and run the four 6 awg wires out to the new junction box (neutral, 2 hot, ground), and I will remount the twist lock plug at the new junction box and just plug in the well cord there (but I will shorten the well cord from twenty feet to three feet). At the new junction box I will put a standard 120 v plug and plug the Grundfos in there with a shorter cord too. Now comes the complicated part. I want to add three 120 v circuits from the service panel to go into existing one inch sched 40 conduits that originate in the area of the Grundfos; the first line will run north 80’ to put a watering timer in the garden, the second new 120 v circuit will also run north about 80’ to the chicken coop for lighting and frigid winter temps when chicks are around, and the third new 120v line runs also about 80’ to a faucet I need year round and must put heat tape on it for wintertime temperatures. All 120v lines are 10 awg. Since I want to originate these three new 120 v circuit at the existing service panel on the conex here is what will go through the 1.5 inch buried conduit from the service panel to the new junction box 20 feet away by the Grundfos:
240 v will go through (four 6 awg; neutral, 2 hot, ground)
the wires for the Grundfos ( 10 awg, hot and neutral).
The wires for the three new 120 v 15 amp circuits (six wires total; 3 hots and 3 neutrals).
So—is it legal, is it hack work? (The 120 v circuits will pick up their insulated grounds from the 240 v ground which I will anchor to a grounding bar in the new junction box.) I have checked conduit fill limits, and also derating for this much fill, and believe I am ok, what do you think, suggestions welcome. All wire is thhn, Southwire. 90’C rated. Thanks for any input. Cosmos