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circuit breaker question
- Thread starter swampy_nz
- Start date
Elite
swampy_nz
Member
iv done a little bit of electrical here and there(been building my own computers and other gadgets for years)nothing in the mainbox area tho so thats why im try to get as much info as possible.if i got the 30 amp breaker wired up how would you suggest i wire the grow end up.gunna have 2 rows of 3x600 watt lights plus a extraction fan and a few smaller fans.need some ideas.
S
sparkjumper
I would take the power to a heavy duty mechanical timer and from the timer to a box holding my receptacles where I would plug in my power cords.Here in the states we have a hot water heater timer called the little gray box which is great for running HID fixtures.I'm sure you have heavy duty mechanical timers that you can use over there
Hey Neigbour,
If you wire up yourself. I'll have to sure that your lead is hooked up to the same phase as the rest of the house. Put in a 20A circuit breaker in the main box and 2.5mm cable to your grow room. You won't need a circuit breaker in your grow room unless your grow room is in a detacted building.
And it is standard practice to have 4 or 5 outlets on your one 2.5mm cable.
If you wire up yourself. I'll have to sure that your lead is hooked up to the same phase as the rest of the house. Put in a 20A circuit breaker in the main box and 2.5mm cable to your grow room. You won't need a circuit breaker in your grow room unless your grow room is in a detacted building.
And it is standard practice to have 4 or 5 outlets on your one 2.5mm cable.
madpenguin
Member
Why is that?
As I understand you are not suppose to have more than one phase working in a dwelling, unless there are purpose built 3 phase outlets.
I remember reading that is why it is illegal to run an extension lead from one house to another. If the two houses are on different phases and there is a fault, then your house could end up being the earth for the local network.
But hey, I could be wrong. I am not an electrian or anything.
Elite
Active member
Also 4-5 outlets on a 20A??
I laugh because in school and places I worked say "15 things" on a typical residential house.
Thats too general because 15-100watt bulbs alone SHOULD trip the breaker.
I don't wire custom homes that way...10 receptacles max. But usually each bedroom will get its own circuit.
I ensure they can draw plenty of power a not trip the breaker, however unfortunately I didn't wire rooms intended for growing 1KW+
I assume your 2.5mm is the proper gauge wire for 20A...but you guys don't put more of a current draw on a 20A than that??
Of course we are not referring to countertop, bathroom recep, appliances ect...
Elite
I laugh because in school and places I worked say "15 things" on a typical residential house.
Thats too general because 15-100watt bulbs alone SHOULD trip the breaker.
I don't wire custom homes that way...10 receptacles max. But usually each bedroom will get its own circuit.
I ensure they can draw plenty of power a not trip the breaker, however unfortunately I didn't wire rooms intended for growing 1KW+
I assume your 2.5mm is the proper gauge wire for 20A...but you guys don't put more of a current draw on a 20A than that??
Of course we are not referring to countertop, bathroom recep, appliances ect...
Elite
Elite
Active member
I am....I don't understand that statment...AT ALL...
LOL, Yeah, I bet the South island would be fun with a few thousand .22 rounds. I am in Cowtown.
madpenguin
Member
cheers for all the comments and advice guys but i have decided to stay with the 16 amp circuit and drop 2 lights and run 4 so at 2.75 amps x 4 thats 11 amps for the lights with 5 amps left over for a few fans etc and an amp or 2 left over.
Looks like my continuous load ratings have fallen on deaf ears. I'm sure most of the other thread isn't absorbed by people who may read it.
I'm not familiar with the cable used nor the NZ code but I would not draw anymore than 12.8A on that circuit.
16A x 80% = 12.8A
As for the phase issue, not sure I see a point in having three phase power when only one is being utilized.....
swampy_nz
Member
Total load including 4 lights,1 exhaust fan and 2 small fans is just over 12A so i should be sweet.
The three phase is used everyday.
