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Reply by Joshua Howe

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Posted on New Jet 708100 -- Lights Dim When I Turn It On

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Joshua Howe

71 posts in 3677 days


#1 posted 10-30-2009 10:13 PM

Okay,
Didn’t read all these post so this may already be covered but for anyone that is reading this old post this may help you.
You need to be able to at least get an average amps on a circuit. This page will help if you don’t want to mess with or know the formulas.
http://www.jobsite-generators.com/power_calculators.html
So what I use is this:
watts=amps X volts
if this is the case then
w/a=v
w/v=a
so to use this in a project I’m currently working on I have 6 puck lights at 20watts each so I have a total of 120 watts in lights I also am installing a plug in this wet bar. So since this is a wet bar I figure the highest power usage item is a blender so I looked when in Lowe’s one day and the largest power consumer(blender) they had was at 650watts so I said to myself okay lets use the formula.
650w + 120w= 770w
so everything is standard kitchen wiring so it will be 120 volt(110V) power supplied.
770w/120v=6.416 amps
okay so I like to round up and play on the safe side when it comes to electricity
so 7amps
well knowing this I know I can use 14/2 wire(Romex) but being the safe person I am I’m using 12/2wire reason being is I don’t know if some jack-leg is going to plug a power strip in here and try and run 3 or 4 blenders when he throws a party showing off is new wet bar. I would rather throw a breaker than burn down a house.
O by the way 14/2 “UP TO” 15amps at 120volts
12/2 20amps at 120volts
it pretty easy once you now what you are working with
when you talk about 220 your amps start to drop
but what most of you guys are talking about are machinery motors which have a huge start-up draw.
What I did in my shop was to run your lights on a completely different circuit not hard to do just find an open spot in your breaker box and place a breaker and put all your lights on this breaker
I then have plugs for certain machines watch your plug buying they are amp rated also so everything should be rated for more amps than you need and every thing should have the right size wire for the amps your are carrying(this is where fires happen to small of a wire for the amps being pulled) allows play it safe and if you are the least bit unsure than find someone that knows because there is no room for maybes.
Our tools will definitely burn up if they are not supplied with the proper amps and amps are lost in connections and distance okay tired of typing hope this helps

-- Wood,clay,metal, and stone are all just materials, until an artist's hand touches them.--TreeFormDesign


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