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Growroom Electricity and Wiring

rives

Inveterate Tinkerer
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ok now I see em...last page of this thread wasn't showing up right...my question still stands about the 240v switch. if anyone can help, feel free to pm me since this thread is being buggy.

Well, the thread seems to be working again so I'll try this here first. I thought that you did a pretty good job of answering your own questions! You need a double-pole switch, you should be able to find them in the same configurations as standard, single-pole switches. You are correct in your thinking that you need to break both hot legs going to the light. It is the same idea as what you are used to, but both wires need to go through the switch. Holler back if you see this, if not I'll pm you with it in a bit.
 

pufferfish

Member
hay all strating a new grow room in the garage...5x400 watt hps...3x250 mh lights a/c ect..ect..ect i gota call an electrician what are my electrical needs
 

StealthDragon

Recovering UO addict.
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5x400 watt hps...3x250 mh lights a/c ect..ect..ect
I'm definitely not an electrician but personally I'd get a 30 or 40 amp 240v "dryer" plug (depending in how much that AC is gonna pull) installed as well as a 20 amp 120 line to run fans n stuff. you can just say you want to put your dryer out in the garage this summer to reduce heat or something. That 30 amp 240v circuit can run like 7k+ worth of lights..it's a little overkill..but I'd prefer to have it incase of future expansions...


would 1000w be too much for 1 regular room socket?? Would i need a certain timer for that?
again I'm not an electrician but I don't see any responses...

find your breaker that that plug in is on and see if it's 15 amp or 20 amp..if it's 20 amp you should be ok to run a 1k light as long as you're not running more then 500 or so more watts on that circuit. a 15 amp circuit is too small to safely run a 1000 watt light on imo...the ballast uses a little extra energy too and your 1000 watt light might actually be pulling 1100 or 1200 watts .. and that's ( I think ) too much watts to be pulling on a continuous load off of 15 amps. 80% rule.

as far as timers I've ran a 1k light off of a outdoor walmart timer thingie with no problems (the timer with the big black spike) that's kinda pushing it though. That's one of the only "normal" timers I could find that could handle 1000watts.. most digital timers max at about 800watts. I'd recommend getting something like a cap mlc lighting controller thingie just to be safe.

:tiphat:
 

rives

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would 1000w be too much for 1 regular room socket?? Would i need a certain timer for that?

If there is no other load on the circuit feeding the receptacle that you have in mind, then it would be fine. Even if you figure 1200 watts with ballast losses (should be pretty conservative), you are at 10 amps on a 15 amp circuit. You can trip the breaker feeding the receptacle that you have in mind and see if anything else goes off. As StealthDragon mentioned, you want to stay under 80% of the circuit capacity for continuous loads, so stay under 12 amps if it is a 15 amp circuit. Volts x amps=watts, or watts/volts=amps. I think that the best timers for this application are the Intermatic T101 water heater timers. They are kind of crude and clunky, but tough as hell and live forever.
 

rives

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hay all strating a new grow room in the garage...5x400 watt hps...3x250 mh lights a/c ect..ect..ect i gota call an electrician what are my electrical needs

StealthDragon's route is probably going to be your cheapest and most portable alternative. If you own the home rather than rent, a minimum 60 amp sub-panel will give you lots of future flexibility and be the basis for a very expandable, safe installation.
 

pufferfish

Member
StealthDragon's route is probably going to be your cheapest and most portable alternative. If you own the home rather than rent, a minimum 60 amp sub-panel will give you lots of future flexibility and be the basis for a very expandable, safe installation.
thanx guys a 240v it is gona start in a few...
 

pufferfish

Member
ok now im thinkin...if my lights n stuff run off 120v...how do i plug it into a 240v..do i need some kind conector ?.........now abote the timer.what one is good
 

Yah`mon

Member
Hey quick question for any lighting expert. Here's a pic of a friends set up... not wondering if its hooked up correctly... an electrician did it and it's been running for 9+ months...

So to the question... does this seem like a solid design to go by? I was thinking about doing the same thing basically... but just on a smaller scale.

picture.php


Thanks for any input.
If anything is unclear ask for more detials... I think the arrows should cover it mostly.
Yah`mon :tiphat:
 
I need some help. How would i wire 20 CFLs? would i splice them into one cord? Should i use heavy duty extension cord? Total wattage is 600 watts.Thanks
 

allouez

Member
I need some help. How would i wire 20 CFLs? would i splice them into one cord? Should i use heavy duty extension cord? Total wattage is 600 watts.Thanks

This doesn't really answer your question, but what I'd do (because too I'm lazy and stupid to learn how to wire them :) ) is buy 3 or 4 power strips, plugging 6 CFLs into each power strip. Hardware stores sell those little outlet sockets and Y-splitter sockets.
 
This doesn't really answer your question, but what I'd do (because too I'm lazy and stupid to learn how to wire them :) ) is buy 3 or 4 power strips, plugging 6 CFLs into each power strip. Hardware stores sell those little outlet sockets and Y-splitter sockets.
haha yea i guess that works but right now im using 3 cfls and i splice the wires into one but thats only maybe 60 watts and 600 watts is a little more serious i think. I dont know much about wiring
 
A

ak-51

240V Nema 6-15 GFCI?

240V Nema 6-15 GFCI?

Are there any GFCI units that can plug in-line with the standard NEMA 6-15 240volt plugs used on ballasts? If necessary I can hardwire it into the cord myself. I have done enough wiring to be confident that I can do this safely.

This is the male end that I'm working with:
picture.php


Here is the kind of outlet that I have rigged up in my room:
picture.php


My limited understanding of GFCI's before was that it monitored the flow from the hot to the neutral and shut it off if they were too different, which would usually indicate dangerous leakage somewhere. If the 240v NEMA 6-15 plug has no neutral, just two hots and one ground, how would that work? Does anybody use GFCI units with their 240V ballasts? If so then which ones? The only ones I have found are these high priced hub units, but they don't even have the right male plug for what I am using!

Please help! I want my growroom to be as safe as possible.
 
SQ TUBA GO TO A hardware store or electrical supplier and get a temparary lighting cord for construction sites light' they come in different lenghts complete with light sockets atach add light bulb and just plug in
 
pipe is the way to go

pipe is the way to go

Hey quick question for any lighting expert. Here's a pic of a friends set up... not wondering if its hooked up correctly... an electrician did it and it's been running for 9+ months...

So to the question... does this seem like a solid design to go by? I was thinking about doing the same thing basically... but just on a smaller scale.

picture.php


Thanks for any input.
If anything is unclear ask for more detials... I think the arrows should cover it mostly.
Yah`mon :tiphat:
looks nice and neet:dance013:
 

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