THCFarmer.com
121,115 Members Log In Register
Log In Register

Grow Room Electrical

  • Thread starter Thread starter hiboy
  • Start date Start date
  • Tagged users Tagged users None

Grow Room Electrical

hiboy 1,406 Replies 323,522 Views
Page 45 of 71 · Replies 881–900 of 1,407
#881
Dude this wire chart is way over kill. There is hardly any voltage drop even at 200'. #4 for a 200' 20 amp run. Hahaha what a waist of time and money. Conduit has to be larger too. 1 1/2" for 100 amps which requires #2 copper. 200' you are safe to raise the wire size a single gauge for that distance.
 
#882
Your HID lighting is the only thing i would oversize by one gauge if over 200'. Speaking as an electrical contractor and licensed Ca. Jorneyman.
 
#883
What's up guys. So I have a spot that needs a 200amp panel swapped in. My buddy says it's already wired for 200 amps and all we need to do is replace the box. Can anyone confirm this? Thanks!
 

Attachments

  • image.jpeg
    image.jpeg
    137.7 KB · Views: 214
Last edited:
#884
Image

That looks like #1 aluminum thw wire in your 3 phase panel 100 amp panel. Using the middle, use the 75°C column in all gauging all wire sizes. Breakers are typically rated for 75°C max fyi. So your feeders right now are rated for 100amps. (ninth down/six over)

Ok so for 200 amps I recommend 3/0 copper. Or you can use 250 mcm al. wire. The copper wire will require a 2" conduit and the al. wire will require 2 1/2" conduit. Al. Suck and 2 1/2" parts typically can't be purchased at your local hardware store either. Also by the looks of the lugs the panel might only be rated for 100 amps maybe 125amps.

3 phase panel gives you ample room for proper electrical distribution at 100 amps. Ive ran +11k watts in lights, ac, fans, pumps etc on less than 100amps on a single phase panel. Hope that helps.
 
#885
That's an old panel..looks like old rag wire...I'd upgrade...and what Fear said..
 
#886
Thanks fear, I really appreciate the info. I need at least 140 amps at this spot. I'm going to have my buddy who's a union electrician do all the work for me. I'll keep everyone updated on the progress!
 
#887
Surfr said:
Thanks fear, I really appreciate the info. I need at least 140 amps at this spot. I'm going to have my buddy who's a union electrician do all the work for me. I'll keep everyone updated on the progress!
Click to expand...
unfortunately they don't have a 140 panel. 60, 100, 125 and 200 amps is what panels are rated for. So to get 140 amps you will still need a 200 amp panel you will just have to downsize the breAker to what you need. My advice would be to just install the full 2hun. 2" emt and copper wire size 3/0. This way you can handle any future expansion.

Peace
 
#889
Yeha I'm doing the 200 install. I was just saying I need at least 140 amps for what I'm running at this spot. Thanks again bro!
 
#890
No problem man just being thourough for anyone else who might need to do the same. Later on
 
#891
What's up guys, I'm looking at a spot with a 100a 3phase panel. I was hoping to get at least a 200a. Can the 3 phase be broken down to get more amps or is a 100a panel only good for 100a no matter what? Thanks
 
#892
which type of 3 phase is it?
480/277v
208/120v
240/120v (high leg corner ground delta)
 
#893
You just lost me lol I don't have a clue I'm guessing 240 but I could be wrong. I will ask the owner
 
#894
Whatz up guys, need help with electrical. It's been awhile. I have 30amp breaker for 220 and a ground. So 3 wire. Two hot. One ground.

I have a 20amp 125v receptical. It has top and bottom with the bridge connected. I would like to use both.

I know brass side is hot, silver is ground. But since no neutral is being used. I just hook up one brass and one silver for each side using 110. Then ground.

Im just gonna run 3 600's so I'm well under 20 amps.

Is this all right?

Thanks in advance for the help.
 
#895
Humboldt.Rio said:
Whatz up guys, need help with electrical. It's been awhile. I have 30amp breaker for 220 and a ground. So 3 wire. Two hot. One ground.

I have a 20amp 125v receptical. It has top and bottom with the bridge connected. I would like to use both.

I know brass side is hot, silver is ground. But since no neutral is being used. I just hook up one brass and one silver for each side using 110. Then ground.

Im just gonna run 3 600's so I'm well under 20 amps.

Is this all right?

Thanks in advance for the help.
Click to expand...
You should be fine as far as amperage is concerned at 220v your amps are cut in half pretty much, at 220v three 600W your looking roughly at about 10 and a half amps. One thing you dont mention is wire gauge. If your using 220v make sure your extension cord is the apropriate gauge like a 10 gauge or so. You dont want them to overheat before the breaker does because it will pose a fire hazard. Best of luck.
 
#896
X.rm said:
You should be fine as far as amperage is concerned at 220v your amps are cut in half pretty much, at 220v three 600W your looking roughly at about 10 and a half amps. One thing you dont mention is wire gauge. If your using 220v make sure your extension cord is the apropriate gauge like a 10 gauge or so. You dont want them to overheat before the breaker does because it will pose a fire hazard. Best of luck.
Click to expand...
Its either 6 or 8

Cheers
 
Page 45 of 71 · Replies 881–900 of 1,407
Back
Top Bottom