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Cajun love
Stranger

Registered: 10/14/16
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Just don't switch to a 20 amp breaker and try to at least use 12 gauge wire. Gfi's and afci's don't hurt either for anything using a sizeable amperage.
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klhouse



Registered: 12/12/15
Posts: 671
Loc: SE Virginia
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Re: Need Electrical Help? [Re: Cajun love]
#23940737 - 12/19/16 04:14 PM (7 years, 1 month ago) |
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I just posted fridge wiring question in DIY. Help?
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Cajun love
Stranger

Registered: 10/14/16
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Re: Need Electrical Help? [Re: klhouse]
#23942568 - 12/20/16 07:34 AM (7 years, 1 month ago) |
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What's the question?
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wildernessjunkie
Reshitivest


Registered: 06/13/10
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Re: Need Electrical Help? [Re: Cajun love]
#23949896 - 12/22/16 07:06 PM (7 years, 1 month ago) |
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My uncle is rebuilding my flow hood for me. The blower is a bit too much for the filter. Historically Ive just blocked off the intake to achieve the correct flow. This time I would like to add a speed control and an on/off switch.
The switch seems simple enough, but I hear that a dimmer switch/Rheostat is the wrong way to control the speed. Can you recommend a solution?
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wolfedawwg
Veteran Lib Hunter & Gatherer



Registered: 10/27/11
Posts: 893
Loc: Nova Scotia
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Re: Need Electrical Help? [Re: Kenetic]
#23956149 - 12/25/16 10:36 AM (7 years, 1 month ago) |
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Quote:
kenetic said: I dont see why it would help if you use a 20 amp breaker, the device is still going to use the same amount of power. Maybe that particular model isn't meant to operate for hours? I would personally change the s.o. cord to 12 or even 10 guage, that'll lower the resistance so the cord won't get hot anymore, without affecting how it operates.
Your first response is important too
 Finally, a thread I can help with........
kenetic pretty much nailed it, you could hypothetically cut the plug end off and wire it direct to a 100 A breaker if you want. It will still get just as hot.
Only other thing is your receptacle box could have a loose wire inside or the receptacle(socket) may be a bit worn out resulting in the plug being a bit loose in the receptacle, causing some arcing. Most of the heat caused from this will be at the receptacle and the PC plug end but the heat would dissipate further up the cord, away from the receptacle.
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wolfedawwg
Veteran Lib Hunter & Gatherer



Registered: 10/27/11
Posts: 893
Loc: Nova Scotia
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Quote:
wildernessjunkie said: My uncle is rebuilding my flow hood for me. The blower is a bit too much for the filter. Historically Ive just blocked off the intake to achieve the correct flow. This time I would like to add a speed control and an on/off switch.
The switch seems simple enough, but I hear that a dimmer switch/Rheostat is the wrong way to control the speed. Can you recommend a solution?
First off, I have zero experience with flow hoods, but lots with motors!! Dimmer switches are not meant for induction motors, they only limit the voltage. Induction motor speed is controlled using voltage and frequency. You can either install a 4 position rotary type switch (off, low, med, high), assuming your motor is capable of 3 speeds or, You can rewire the motor for the correct speed to attain proper flow but you won't be able to control the speed this way. Most blowers I have wired have red(low), black(high) and blue(med) wires but some may only have 1 or 2 speeds. It would just be a matter of switching one of motor speed wires (red, black or blue) with another, on the switch leg side of the switch.
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Kenetic
Nam Sayin



Registered: 08/24/14
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Re: Need Electrical Help? [Re: wolfedawwg]
#23956831 - 12/25/16 04:57 PM (7 years, 1 month ago) |
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Pretty much.
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wildernessjunkie
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Re: Need Electrical Help? [Re: Kenetic]
#23957111 - 12/25/16 07:10 PM (7 years, 1 month ago) |
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So basically my best bet would be to limit the intake like I have been then?
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wolfedawwg
Veteran Lib Hunter & Gatherer



Registered: 10/27/11
Posts: 893
Loc: Nova Scotia
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Probably so. It's pretty simple to change the speed at no cost, provided the motor is capable but we don't even know if your motor has variable speeds. With that said, when it comes to figuring how big, small, easy or hard a certain job in this trade, it's pretty much impossible without all the specs and some pictures.
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Edited by wolfedawwg (12/25/16 08:01 PM)
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blood4blood
Calmer Than You Are


Registered: 04/25/07
Posts: 6,029
Loc: The Valley
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Re: Need Electrical Help? [Re: Kenetic]
#24014051 - 01/16/17 08:50 AM (7 years, 14 days ago) |
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What is the best way to add more circuits to a 100amp circuit box? We're adding a room to house and our circuit box is full.
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wolfedawwg
Veteran Lib Hunter & Gatherer



Registered: 10/27/11
Posts: 893
Loc: Nova Scotia
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Mini breakers or add a sub panel.
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blood4blood
Calmer Than You Are


Registered: 04/25/07
Posts: 6,029
Loc: The Valley
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Re: Need Electrical Help? [Re: wolfedawwg]
#24015316 - 01/16/17 05:11 PM (7 years, 14 days ago) |
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if I add a subpanel does the main circuit on the sub panel have the match the main circuit on the main box?
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Kenetic
Nam Sayin



Registered: 08/24/14
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No a subpanel is generally smaller than a main panel in terms of amperage capacity, which is determined by the rating of the equipment.
Sounds like you need to call an electrician. Add up the amperage of each breaker in your panel and compare the total to the capacity of the panel and if you are at your limit you need an electrician. Otherwise you could just turn the main off and pop a breaker in
-------------------- Todo Cambia    DMT said: Everyone know's me, they just don't know it yet
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rhizoRider
Mycorrhizally expanding



Registered: 12/24/13
Posts: 1,921
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Re: Need Electrical Help? [Re: Kenetic]
#24015557 - 01/16/17 06:57 PM (7 years, 14 days ago) |
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Cool thread offer thanks I am looking for a backup propane only furnace system for a trailer home Aprox 14 x 70 ft and thought a solar powered system to just run a thermostat may work ? Or am I dreaming? I'm not there 100% of time so gas generators or wood stove wouldn't help. Mainly want a lp system (smaller)) rigged to solar powered thermostat in case of bad winter power outages. Thanks for any help and ideas. It will bug me till I get a backup system set. Damn winter ice knocks down trees and power lines. Gotta have backup off grid Or fork over $5k for some wild generator. I'd keep $1500 as start limit.
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blood4blood
Calmer Than You Are


Registered: 04/25/07
Posts: 6,029
Loc: The Valley
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Re: Need Electrical Help? [Re: Kenetic]
#24015662 - 01/16/17 07:36 PM (7 years, 14 days ago) |
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Quote:
kenetic said: No a subpanel is generally smaller than a main panel in terms of amperage capacity, which is determined by the rating of the equipment.
Sounds like you need to call an electrician. Add up the amperage of each breaker in your panel and compare the total to the capacity of the panel and if you are at your limit you need an electrician. Otherwise you could just turn the main off and pop a breaker in
I thought you were an electrician
So you're saying that is my circuits add up to more than the 100 amp service I have Ill need to upgrade to a 200 amp service? I think i lookied into that a cpl years ago and that was around 5k for an electrician to do, I think the disconnect was 2k alone
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Kenetic
Nam Sayin



Registered: 08/24/14
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That seems like overkill for just a couple circuits for a room. Id just call a local electrician and see what options you have
-------------------- Todo Cambia    DMT said: Everyone know's me, they just don't know it yet
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Lophosaurus
suruasohpol


Registered: 08/09/07
Posts: 8,744
Loc: CA
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Re: Need Electrical Help? [Re: Kenetic]
#24018704 - 01/17/17 10:38 PM (7 years, 13 days ago) |
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What are you adding? A few outlets and lights? Any appliances or 240v loads?
You could add a 60amp sub-panel. 60a 2-pole breaker and feed with 6/3 wire.
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wolfedawwg
Veteran Lib Hunter & Gatherer



Registered: 10/27/11
Posts: 893
Loc: Nova Scotia
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If you only require general lighting and plug circuits your easiest and cheapest bet is to get a quad mini breaker (suitable for your panel) and swap out 1 regular 220 V breaker. A quad mini will give you 4 breakers in the space of 2 regular breakers. Best bet is to get something like this and replace it with a 220 V circuit.......

What type of panel do you have?
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blood4blood
Calmer Than You Are


Registered: 04/25/07
Posts: 6,029
Loc: The Valley
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Re: Need Electrical Help? [Re: wolfedawwg]
#24020769 - 01/18/17 05:37 PM (7 years, 12 days ago) |
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square D
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wolfedawwg
Veteran Lib Hunter & Gatherer



Registered: 10/27/11
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Loc: Nova Scotia
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If you installed 2 of these in place of 2 standard breakers, you would gain 2 circuits in your panel.

Not sure if 2 general circuits will be enough. All depends what is going to be in the new "room"...
Edited by wolfedawwg (01/18/17 06:24 PM)
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