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Wiring

90 Amp Wire Size Calculator + Chart (0-500 Feet Runway)

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90 amp aluminum wire

Alright, figuring out what size you need for 90 amp service is fairly certain. We will have to consult the NEC 310.16 table for copper and aluminum wire capacities. On top of that, we will have to account for voltage drop if we want to have a 90 amp service 50, 100, 150, 200 feet … Read more

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125 Amp Wire Size Calculator + Chart (0-500 Feet Away)

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125 amp wire sizes

Figuring out a 125 amp wire size is fairly easy. We’ll show you how to figure that out. Where it gets a bit more difficult is at 125 amp service 50 feet, 100 feet, 150 feet, 200 feet, and up to 500 feet away. Here we have to account for voltage drop; we’ll explain how … Read more

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400 Amp Wire Size Calculator + Chart (0-500 Feet Runway)

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For 400 amp service, we can rule out the standard AWG wires. We have to use thick kcmil copper and aluminum wires. On top of that, we have to account for voltage drop for services some 100s feet away. Alright, here is how you can figure out any wire size, including for 400 amp service: … Read more

Categories Wiring 2 Comments

150 Amp Wire Size Explained: Calculator + Chart (0-500 Feet Away)

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150 amp copper wire

For 150 amps, we will need quite a thick wire. Which wire gauge is needed for 150 amp service? We will look into a 150 amp service wire size at 0 feet. On top of that, we will also calculate the 150 amp wire size for service 50 feet, 100 feet, 150 feet, 200 feet, … Read more

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80 Amp Breaker Wire Size + 80A Wire Size 0-500 Feet Away

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80 amp wire size

If you want 80 amp service, you have to adequately size your breaker and pick the right sized wire. This is not all that simple, since we have to account for National Electricity Code (NEC) rules. To help everybody out with 80 amp circuits, we are going to answer both of these questions: What size … Read more

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25 Amp Breaker Wire Size + 25A Wire Size 0-500 Feet Away

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25 amp wire size

Alright, many homeowners have a problem with wire sizes. Here, we will focus on the 25-amp wire size. Some parts of this might be a bit complex, but when you boil it down, we are simply going to address these two questions: “What wire gauge do I need for a 25 amp breaker?” This one … Read more

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Wire Gauge For 15 Amp Service + 15 Amp Breaker Wire Size

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15 amp wire size

Alright, figuring out wire size for a 15 amp service and 15 amp breaker seems easy in theory. In practice, we have to account for the distance from the source (15 amp wire size for 15 amp service) and the 80% NEC rule for 15 amp breaker sizing. We will show you exactly how to … Read more

Categories Wiring 2 Comments

12V Voltage Drop Calculator + Chart (0-200 Feet Away)

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12v dc voltage drop wires

12V voltage is massively prone to voltage drop. If you run a 12V wire for 10, 20, 50, 100, or even 200 feet, the voltage drop will be significant (since 12V is one of the lowest voltages; compared to 120V, or 220V, for example). Calculating the 12V voltage drop is not exactly easy, and you … Read more

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DC Wire Gauge Calculator: What Gauge Wire (12V, 24V, 48V)?

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wire sizes for dc current

Alright, figuring out what wire gauge you need for DC current is fairly simple; anybody can do it. We will show you exactly how to figure out DC wire size by the “back of the napkin” calculation. If you don’t have a napkin, don’t worry. To make things simpler, we have created two very useful … Read more

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NEC 310.16 Table: Copper And Aluminum Wire Ampacity Chart

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ned 210.16 table for wire ampacities

Whenever we need to need how many amps a wire can handle, we turn to the NEC 310.16 table. The 310.16 table is basically an ampacity chart; it tells us what is the ampacity of copper and aluminum wires. The full name for this table is “Table 310.16 Ampacities of Insulated Conductors with Not More … Read more

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HVAC metrics:

SEER = (1 × EER100% + 42 × EER75% + 45 × EER50% + 12 × EER25%)/100

EER = BTUcooling/W

HSPF = BTUheating/W

COP = Q (useful heat)/W (input work)

ACH = CFM x 60/Area x Heightceiling

Total Heat (BTU/hr.) = 4.5 x CFM x Δh (std. air)

Sensible Heat (BTU/hr) = 1.1 x CFM x Δt (std. air)

Latent Heat (BTU/hr) = 0.69 x CFM x Δgr. (std. air)

1 HP = 746 Watts

1 kW = 3413 BTU

 

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