WeeGogs
Active Member
i like your avatar but i never knew that cavemen smoked the weed.
Experienced Electrician! Here to Answer Any and All Growroom Electrical Questions
- Thread starter bricktown73
- Start date
WeeGogs
Active Member
your right 110v is safer i see what you mean now.
check out these americans having fun :
Danielsgb
Well-Known Member
Take out lots of health/Life insurance for you, get all family out first, Then SURE wire it up. I lived in London for 6 months. You are the dumbest Brit I've seen. Wow good job.
Daniels
I hadn't even thought of a second feed for my grow, but it sounds like I would regret it later or I would be digging again later when I needed more juice. I only want to do this once and do it right.So if you were me what would you do. Hell I wouldn't mind 200 amps for the house and 100 for my shop. It would be nice to only use one conduit, but would it fit in a 3 inch. Buyin the extra pipe doesnt bother me its all the conduits coming out of the panel at the pole. Guess I could build an enclosure at the pole to box things up too. Wat size conductors should i use for the second 100 amp feed. Im glad i hit you up for advice im likin this idea now thanks
gumball
Well-Known Member
weegogs reported for harrassment. dude, dont come into a help thread and ask for help, then bash the users that are in here everyday helping people because you dont like their answer. i dont care what nationality you are, these folks were only looking out for your well being. sure they made a joke or 2 at your expense, but you would have to.
IAm5toned
Well-Known Member
it will still be a 2.5 inch conduit. you would be pulling 3/0 x 3 (2 hots, one neutral for the house 200 amps panel) #3 x 3 ( 2 hots, one neutral for grow panel) and a single #4 ground.[norcal];4218222 said:
the ground for the grow panel should be picked up from the main panel inside the house where the 3/0 run terminates. if you were slick, you would pull enough wire to get from the main panel inside the house, to the grow panel, so you do not have to splice the conductors once they get into the house. DO NOT pull a seperate ground through the pipe for the grow panel. its completely unnecessary, like i said before, that ground can be picked up from the house panel.
all wire should be thhn, or thwn-2 copper. you can go with aluminum if you want, but its going to change the size of the wire, and hence the size of the pipe. it also wont last more than 25 years max. you dont want to go over 2.5 pipe if you can avoid it, theres a price hike between it and the next size up, which will negate the savings by going with aluminum in the first place.
i did the math, just to be sure it will fit- here it is so you can see for yourself how its done-
cross sectional area of thhn Cu conductors-
(3) 3/0 @ .2679 sq inches = .8037
(3) #3 @ .0978 sq inches = .2934
(1) #1 @ .0824 sq inches = .0824
total cross sectional area of conductors = 1.1795 sq inches
as per NEC chapter 9, table 5 shows us, 2" sched 40 pvc conduit with 2 or more conductors has a maximum fill capacity of 40% of the cross sectional area of the conduit. 40% of a 2" conduit would be 1.459 sq inches, big enough for the job, as 1.459 is > 1.1795 (the sum of all your wires). however, as i mentioned originally, 2" can be a bitch to pull through for such a long run, so by increasing the diameter of the conduit to 2.5", which has a max fill of 2.181 sq inches, the increased area inside the pipe makes the wire pull itself a much, much,much easier job.
so 2" to make it work, save a penny, but bust your ass getting it in, or 2.5 to spend a trifle more, but have the wire go through like a greasy string pulled out of a cats ass....
its all a matter of preference.
whiteflour
Well-Known Member
No lower voltage is more dangerous than higher voltage. High voltage has tendancy to knock you away from it, lower voltage likes to hold on. Not only that there are more amps in the same load at lower voltage.
Regardless to what you think fresh water is not very conductive at all. You have to add salts or acids for conductivity. I've seen server rooms get flooded by a river and the computers just kept on chugging.
Next please!
whiteflour
Well-Known Member
LOL
Well like I said the point was pretty moot.... especially when you consider higher voltages are meant for higher loads.
You won't catch me grabbing any of them.
Well like I said the point was pretty moot.... especially when you consider higher voltages are meant for higher loads.
You won't catch me grabbing any of them.
IAm5toned
Well-Known Member
that is an old wives tale that will get you killed, plain and simple.
it all comes down to potential energy.
the higher the voltage, the more potential energy.
what changes? the duration of time between the time it takes for a breaker to kick.
why is this? because 20 amps of 277 has alot more power behind it than 20 amps of 120.
you dont believe me, next time you have the chance and no one is looking, take 120 directly to ground, and observe.
next, take 277 volts to ground. use your kleins to hold the 277 wire, as the heat released will be enough to give you 2nd degree burns.
do NOT attempt this with live 480... the flash alone could be enough to start your clothes burning and give you 3rd degree flash burns
as far as getting shocked with voltages higher than 110, this is what happens-
typically, you get stuck to the wire. this is because the amperage that is now running through your body overpowers the electrical impulses your brain is trying to send to your muscles to let go. you cant let go even if you wanted to. someone else would have to be incredibly strong and have there adrenaline going just to have the strength to knock you off the wire and save your life. then, because you are a poor conductor, the area making contact with the energized part on your body heats up and begins to burn. this process changes the conductive properties of the point of contact, and actually reduces the amount of power going through you. this is the point that your finally able to 'let go' if your lucky, the entire affair is over in a millisecond or 4.. but it feels like a lifetime, and you walk away with what looks like a nasty sunburn on one spot and a numb arm that aches for a couple of days.
if your not lucky, what happens is this- the heat continues to build up, untill something that is energized reaches its flash point (the point in which the materials within cease to be solids/liquids and expand into gasses from excessive heat) then, there is an explosion of energized gas that both electrocutes and then burns anything it comes into contact with. the duration of this flash is in nanoseconds. its over before you can even process the images your eyes are seeing. this same explosion is what 'blows a man clear' of the line, if he is lucky... or else he will soon be a crispy critter. more often than not, arms, legs, fingers, heads, you name it are left behind during one of these explosive events. then, after the explosion occurs, anything that is combustable and retaining excessive heat, now erupts into flame and starts to burn... like your hair and clothes.
so from start to finish, aprox .025 of 1 second, you just went from cutting a wire, to blown the fuck up.
yeah, higher voltage is safer....
maybe if your trying to get out of the gene pool.
gumball
Well-Known Member
i only reported you, i cant ban you. i left it to the mod's to ban to you if they seen fit. i guess they did. i guess they will again. we dont need your harrassing behavior bringing down our good educational time.
and it only takes a minute to report you.
gumball
Well-Known Member
please dont post pictures of yourself on this site.
whiteflour
Well-Known Member
Sounds like you have a pansy European tool. I know.... I sell tools and Europeans always come looking for American made. I could sell you a black & decker that I guarantee will spin YOU around. It's all about rpms and torque ratios.
whiteflour
Well-Known Member
Black & Decker doesn't even make their consumer line tools, so if that's what you're thinking I agree. You'd want their Industrial products which are only available through large contracts. I get them through Boeing and Northrop.... aircraft manufactures. Big time fabrication.
gumball
Well-Known Member
well you should really let rollitup or one of his mod's know, this is just an electrical help thread. if the site goes away we will just go to another...
gumball
Well-Known Member
your right, and i shouldnt even be entertaining this person by replying. but only reason i visit this thread is to learn and share the small amount of knowledge I have with electricity. then this guy wants to come in and bash and harrass the people who are helping. thats why i reported them the first time. i reported them after they setup their second account cause I figured the mod's would not like someone flaunting that they can just create a new account if they were banned. i bet they have already been banned again. hope they stop trying soon.
