Wire size for 200 amp service copper

As a result, upgrading to a 200 amp service is fairly frequent. But, the tricky part of this is selecting the right length of wiring. What is the 200 amp wire size? You’ll need to get a #2/0 copper wire, #4/0 aluminum wire, or copper-clad aluminum wire to begin. Copper wires have high conductivity and are heat and corrosion-resistant.

If you need more power in your home, you can install 200 amp services. For 200 amp service, you want a minimum of four or six ground. The conductor is the wire that carries the electrical power. To upgrade a 200 amp wire, you can use special fixtures with aluminum. When using the aluminum wire, you should consider using the copper fixtures ...6 AWG = 26,240 cm × 1.49 = 39,097.6 cm. According to Table 8, a 4 AWG copper is required = 41,740 cm. The minimum size equipment grounding conductor for this 200-ampere feeder is a 4 AWG copper conductor. The answer is based on NEC-2008, Sections 250.122, Table 250.122, and Chapter 9, Table 8 (conductor properties).Each has a different ampacity for a specified gauge size, and these ampacities are found in NEC® Table 310.15(B)(16) for the calculations in this app. For example, 3/0 AWG copper has an ampacity of 200 amps at 75℃, while 3/0 AWG aluminum has an ampacity of 155 amps at 75℃. WIRE / CABLE TYPE:250.66(A) says the grounding electrode to a single or multiple rods shall not be required to be larger than a #6 copper wire. But in 250.66 it says for a 2/0 copper service entrance conductor, which you have for the 200 amp service, a #4 copper conductor. For residential I've always used a #4 because inspectors seemed to ask for it.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 away, and so on.. We’ll start by looking at the typical 90 amp wire gauge.Investor interest is on the rise and I have two price targets....ERO Ero Copper (ERO) is a copper producer with operations in Brazil and corporate headquarters in Vancouver, B.C. E...A 400 Amp service panel and 400 Amp meter base require a 750 kmil (750 MCM) 0r 1000 kcmil (1000 MCM) aluminum wire at 194°F or only 1000 kcmil (1000 MCM) at 167 °F. For copper wire, you will need 600 kcmil (600 MCM) copper wire for both 167 °F and 194°F. For a 140 °F underground service, 1250 kcmil aluminum and 750 kcmil …

The size of the ground wire for a 200-amp service depends on various factors, including local electrical codes and specific installation conditions. However, as a general guideline, a copper grounding conductor of 4/0 AWG (American Wire Gauge) or an aluminum conductor of 250 kcal is often recommended.The size of wire required for a 200 amp service panel is 4/0 AWG. This is also sometimes referred to as “4 gauge” wire. This wire size will be able to handle up to 200 amps of power before it needs to be replaced. Be sure to use copper or aluminum wire that is rated for outdoor use when running the wire from the main power source to the …The calculator is designed to accept the total line voltage and current of the combined three cables. The equation for the area of a single wire is modified to: A = \frac {\sqrt 3 I \varrho L} {V} A =V 3 I ϱL. The factor of \sqrt 3 3 is needed to convert between the system's phase current and line current. The factor of 2 disappears, as there ...For a 400-amp service, you will need a wire size of at least 350 kcmil for copper wires or 600 kcmil for aluminum wires. It’s essential to adhere to the National Electrical Code (NEC) and local regulations, and consult with a qualified electrician to ensure proper installation and safety. 400 amp Service Wire Size Chart:200 amp #2/0. 225 amp #3/0 or #4/0. The neutral wire is often one or two sizes smaller than the two hots. The correct sizing of the neutral depends on doing a …2/0-2/0-2/0-1 CU SERVICE ENTRANCE TYPE SER PVC JACKET 500 FT. Copper Service Entrance (SER) Cable. 2/0-2/0-2/0-1 CU SERVICE ENTRANCE TYPE SER PVC JACKET 500 FT. Southwire #: 27083501. Service Entrance Cable Style SER Service Entrance Cable, 600 Volt. Individual Conductors Rated XHHW-2. Jacket and Individual …

Nov 7, 2023 · A 200-amp service with 125 ft run using 3% allowable voltage drop. For 3 AWG copper wire, k = 21 and allowable amps = 205. Using the formula: Neutral Wire Size =2 × 200 × 125 × 21205 × 0.03= 2 AWG. Therefore, the minimum recommended size is 2 AWG copper wires for this 200-amp service with a 125-foot run. I’m planning on upgrading my electrical service to 200 amps but I’m not sure what aluminum wire size I need. I get confused with the ambient temperature chart, I’m located around Houston Texas area. ... The 200 amp service can be derated to .83 so that's 166 amps. At 75 degrees C, 3/0 Al is 155 amps and 4/0 Al is good for 180 amps so …The Wire Size Calculator below will calculate the proper wire size for a circuit based on circuit amps, preferred (or available) wire insulation, conductor type and installation specifications. For more advanced considerations, use the Wire Size Calculator or the Advanced Wire Size Calculator.150 Amp Wire Size Calculator. Here you insert wire length, voltage, and allowable voltage drop, and the calculator will determine which gauge wire you need to facilitate 150 amp current immediately. 150 Amp Wire Gauge Charts for 3% and 10% voltage drop. We have calculated wire sizes needed for 150 amp service 50, 100, 150, 200, 300, 400, and ...

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What size wire do I need for a 200 amp service? For a 200-amp service, you typically need copper wire sized at least 2/0 AWG (American Wire Gauge) or aluminum wire sized at least 4/0 AWG for the service entrance conductors. However, this can vary depending on local electrical codes and the length of the run, so consult a …Aug 23, 2023 · The size of the conduit needed for a 200-amp service will depend on the length of the wire run. Generally, you should use 3/4 inch or 1 inch conduit for up to 100 feet and one 1 1/4 inch or larger for longer runs. Always consult a professional electrician or check with your local permit office before beginning any electrical wiring project. Occupation. Electrician. Jul 7, 2020. #3. 4/0 AL is good for 180 amps. 250 AL is good for 205 amps. If you can show your calculated load is less than 180 amps, you can legally go up to the next standard size, a 200 amp breaker. That's code minimum. Over here, we would use 250 AL in a 2.5-3" depending on which size we felt like using.You want to choose the correct wire size for 30 amp service. This can be a 30 amp breaker size, 30 amp circuit, and so on. We are going to look into what wire size you need for: 30 amp 240 volt circuit. This circuit can handle up to 7,200W of electrical power. 30 amp at 0 feet distance. 30 amp 100 feet and 150 feet away from sub panel.Choosing the right size wire for an underground 200 amp service is crucial for getting the proper power to the circuits to run all of the stuff in your house without overloading the circuits. Aluminum and copper-clad aluminum should be #4/0 AWG, while copper wire should be #2/0.

Allowable ampacity of 3/0 copper wire is 225 Amp, while the allowable ampacity of 4/0 aluminum wire is 205 Amp. 2/0 AWG copper wire is not completely out of the question, but its ampacity is 195 Amp-200 Amp, which will put it at a maximum load, so using 3/0 AWG copper is a better option. For grounding conductors, the minimum size for is 4 AWG ...SER copper cable: A 200 amp service size is 2-2-2-4 SER. Here, it means one grounding (bare or insulated), one insulated AWG 2 neutral, and two insulated hot wires. Aluminum SER Wires: A typical code for an aluminum SER cable for 200 amp service is 4-4-4-6. This code means AWG 4 four insulated conductors, 4 AWG insulated …This is a good goal to shoot for when sizing the conductors for an underground cable. The following are the maximum lengths of cable you can use while still maintaining a 3 percent voltage drop for the given wire size (AWG) and circuit voltage. As an example, for a 120-volt circuit, you can run up to 50 feet of 14 AWG cable without …As a result, upgrading to a 200 amp service is fairly frequent. But, the tricky part of this is selecting the right length of wiring. What is the 200 amp wire size? You’ll need to get a #2/0 copper wire, #4/0 aluminum wire, or copper-clad aluminum wire to begin. Copper wires have high conductivity and are heat and corrosion-resistant. Enter the information below to calculate the appropriate wire size. Voltage - Enter the voltage at the source of the circuit. Single-phase voltages are usually 115V or 120V, while three-phase voltages are typically 208V, 230V or 480V. Amperes - Enter the maximum current in amps that will flow through the circuit. In this case, the Amp Service Wire Size must be at least a 2/0 AWG of copper wire when installing a 200-amp panel. It’d help if you wired larger than a 4/0 AWG when using copper-clad or aluminum. Before determining if the 200 amps wire is best for you, think about a few things.200 Amp Wire = 200A × 100% / 80% = 250A Ampacity. That means that you can to use a wire that has an ampacity of 250A or higher in order to set up a 200 amp circuit. As you …Investor interest is on the rise and I have two price targets....ERO Ero Copper (ERO) is a copper producer with operations in Brazil and corporate headquarters in Vancouver, B.C. E...Copper wire gauge sizes play a critical role in the performance and safety of electrical systems. Whether you’re setting up a new electrical circuit or replacing wires in an existi...

Wire Size & Amp Ratings. Copper Aluminum; Wire Gauge Size: 60°C (140°F) NM-B, UF-B: 75°C (167°F) THW, THWN, SE, USE, XHHW: 90°C (194°F) ... Selecting the appropriate wire size for a circuit is crucial to prevent overheating, which can lead to damage and fire hazards. Devices and Amp Draw: ...

Steps to Upgrade to a 200 Amp Service Wire. Ensure that power is off to the entire building, which may involve more than just shutting off the main breaker. Have utility company to disconnect electrical cables from the house. Remove the glass meter from the meter socket. Unscrew meter socket from side of house, then use cable cutters to sever ... The actual wire diameter of #14 copper wire can vary among manufacturers and wire types. The wire size table below gives the typical diameter of #14 copper wire as 0.073- .064 / 1.84-1.63 inches / mm. [Thanks to Anonymous for careful editing] Ampacity based on NEC ® Table 310.15 (B) (16) (formerly Table 310.16) Allowable Ampacities of Insulated Conductors Rated Up to and Including 2000 Volts, 60° through 90°C (140° through 194°F), Not More Than Three Current-Carrying Conductors in Raceway, Cable, or Earth (Directly Buried), Based on Ambient Temperature of 30°C (86°F).The cost of wire for 200 amp service varies based on the home size, wire type. For a two-thousand square foot building, you will spend more than thousand-five hundred dollars. It is recommended to use copper-clad aluminum or copper wire if the residential place has the high load capacity.Wire Size Chart: Allowable Ampacities of Conductors in Raceway, Cable, or Earth. ... NFPA 70, National Electrical Code, Table 310.15(B)(18) SIZE 150°C (302°F) 200°C (392°F) 250°C (482°F) 250°C (482°F) 250°C (482°F) 450°C (842°F) 450°C (842°F) AWG or kcmil TINNED COPPER TINNED COPPER NPC 2%-10% NPC 2%-10% "A" NICKEL NPI NPC 27%Generally, the ground wire size for a 200 amp service ranges from 2 AWG to 8 AWG. The best one is 2 AWG for copper wire and 4 AWG for aluminum or copper-clad aluminum wire. It is recommended to use them with 1.5-2.5 inches schedule 40 or 80 PVC conduit for underground service. It may differ depending on the materials, permission …When installing a 200 Amp service, you will need at least 3/0 AWG copper wire or 4/0 AWG aluminum or aluminum copper-clad wire. Allowable ampacity of 3/0 …

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How much copper is in a refrigerator compressor? Is it worth removing? We explain how much you can earn, plus what to do with the rest of the refrigerator. A refrigerator compresso...4 AWG copper ground wire for 200 amp service (at short distances). 0 AWG aluminum ground wire for 200 amp service (at short distances). Now, this is relevant is the hot wire is short. If you need a 200 amp service 50 feet, 100 feet, 150 feet, or 200 feet away (Example: 200 amp sub-panel 100 feet away), you also need to account for voltage drop.Minimum Wire Size; For that, you go to an ampacity table. That tells you that for 75 C wire in conduit (the wire may be rated 90 C, for various reasons 75 C is the one you usually need to work with for this), the choices are 3 AWG copper or 1 AWG aluminum or larger. Feeders such as this are almost always done using aluminum due to cost. …It is meant for a 200 amp service. This cable is fine for that purpose. I'm writing this review mostly because of the sadly uninformed "DIYSierra" review -clearly a DIYer and not an electrician. This is aluminum SEU, not NM. "NM" is labeled by wire size/number of conductors, and whether or it it has a ground. SEU is not.When looking for a 200 amp service entrance wire size, you should consider the 3% allowable voltage drop by NEC standards. As a result, you need to use a much bigger wire size than the one for short-distance setups. In this case, instead of using a 2/0 copper wire, you should use 300 kcmil copper with only a 2.78% voltage drop.Applications: -SER cable is used as an above ground service entrance cable, a panel feeder and in branch circuits. The cable is rated at 600 volts and 90°C for use in wet and dry locations. SER cables are LEAD FREE and RoHS compliant. We stock Copper SER cable in a variety of gauge sizes for your electrical needs.Here is a comprehensive copper wire size chart for a 100 amp circuit: Wire Size (AWG) 2. 1. 1/0. 2/0. 3/0. 4/0. 250 MCM. 300 MCM. 350 MCM. 400 MCM. Maximum Ampacity. 115. 130. 150. 175. 200. 230. 255. 285. 310. 335. Choosing the Right Wire Size. ... This comprehensive copper wire size chart provides you with the necessary information to …According to the NEC, the wire size for 200 amp service is a 3/0 AWG copper wire or 4/0 AWG aluminum wire. You should increase wire size by 20% for every extra 100 feet run to account for voltage drop.8662 posts · Joined 2007. #19 · Jan 4, 2018. Over here in my area ., the 200 amp residentails typically use 4/0 alum and some case if have to use copper for 200 amp residentails then use 2/0. but for GEC all copper no alum due that size service typically have brick or cement wall and it will eat up alum conductor if not done right.February 13, 2024 by Ekram Hossain. For a 200 amp electrical service, a 2/0 AWG copper wire or 4/0 AWG aluminum or copper-clad aluminum wire is needed. This choice meets … Enter the information below to calculate the appropriate wire size. Voltage - Enter the voltage at the source of the circuit. Single-phase voltages are usually 115V or 120V, while three-phase voltages are typically 208V, 230V or 480V. Amperes - Enter the maximum current in amps that will flow through the circuit. They’re not cheap; they’re $50 over the new AirPods Pro. But if you’re a Bose fan, you can pick them up starting September 15. Yes, I missed Bose’s big news this morning. I was bus... ….

If you need more power in your home, you can install 200 amp services. For 200 amp service, you want a minimum of four or six ground. The conductor is the wire that carries the electrical power. To upgrade a 200 amp wire, you can use special fixtures with aluminum. When using the aluminum wire, you should consider using the copper fixtures ...The wire size required for a 200 amp service typically falls between 3/0 and 4/0 AWG (American Wire Gauge) for copper wiring. These sizes provide the necessary ampacity to carry a 200 amp load without overheating or causing damage to the wire.250.66(A) says the grounding electrode to a single or multiple rods shall not be required to be larger than a #6 copper wire. But in 250.66 it says for a 2/0 copper service entrance conductor, which you have for the 200 amp service, a #4 copper conductor. For residential I've always used a #4 because inspectors seemed to ask for it.Do you know how to tarnish copper? Find out how to tarnish copper in this article from HowStuffWorks. Advertisement Whether it's a family heirloom, a rare coin, or handmade -- or s...Generally, the ground wire size for a 200 amp service ranges from 2 AWG to 8 AWG. The best one is 2 AWG for copper wire and 4 AWG for aluminum or copper-clad aluminum wire. It is recommended to use them with 1.5-2.5 inches schedule 40 or 80 PVC conduit for underground service. It may differ depending on the materials, permission …Minimum Requirements For 200 Amp. AWG or American Wire Gauge is the standard for sizing electrical wiring. A 200 amp service requires either #2/0 AWG copper wire or #4/0 AWG aluminum or copper-clad aluminum wire. These are the safest wires to use as they permit the use of full amperage of the electrical service without too high a voltage drop.Occupation. Electrician. Jul 7, 2020. #3. 4/0 AL is good for 180 amps. 250 AL is good for 205 amps. If you can show your calculated load is less than 180 amps, you can legally go up to the next standard size, a 200 amp breaker. That's code minimum. Over here, we would use 250 AL in a 2.5-3" depending on which size we felt like using.Ampacity based on NEC ® Table 310.15 (B) (16) (formerly Table 310.16) Allowable Ampacities of Insulated Conductors Rated Up to and Including 2000 Volts, 60° through 90°C (140° through 194°F), Not More Than Three Current-Carrying Conductors in Raceway, Cable, or Earth (Directly Buried), Based on Ambient Temperature of 30°C (86°F).Apr 12, 2009 · Member. Join Date: Apr 2009. Posts: 11. Upvotes: 0. Received 0 Upvotes on 0 Posts. 2 conductor (s) per phase utilizing a 750 kcmil Copper conductor will limit the voltage drop to 2.81% or less when supplying 200 amps for 1000 feet on a 240 volt system. But that 750 copper is going to cost you. Wire size for 200 amp service copper, A 6-gauge copper wire is a standard for 50 amps. You can use a 4-gauge aluminum wire for 50 amps. If the wire length is 100 feet or above, you should consider a wire gauge, one level up, to prevent voltage drop—for instance, a 4-gauge copper wire for 50 amps at 100 feet. The NEC has also developed a wire gauge chart to help avoid …, Oct 1, 2023 · 200 amp x 100% / 80% = 250 amps (to account for the 80% rule) Next, determine how long your wire run is. Add 20% for 100 feet and 10% for 50 feet. So, if your run is 150 feet, you’ll need to increase the amperage of the wire by 30%. Hence: 250 amps x 1.3 = 325 amps. The conduit size should be able to carry 325 amps. , Occupation. Electrician. Jul 7, 2020. #3. 4/0 AL is good for 180 amps. 250 AL is good for 205 amps. If you can show your calculated load is less than 180 amps, you can legally go up to the next standard size, a 200 amp breaker. That's code minimum. Over here, we would use 250 AL in a 2.5-3" depending on which size we felt like using., Steps to Upgrade to a 200 Amp Service Wire. Ensure that power is off to the entire building, which may involve more than just shutting off the main breaker. Have utility company to disconnect electrical cables from the house. Remove the glass meter from the meter socket. Unscrew meter socket from side of house, then use cable cutters to sever ... , According to the NEC, the wire size for 200 amp service is a 3/0 AWG copper wire or 4/0 AWG aluminum wire. You should increase wire size by 20% for every extra 100 feet run to account for voltage drop., Apr 11, 2018 · 310.15 Ampacities for Conductors Rated 0–2000 Volts. (B) Tables. (7) 120/240-Volt, Single-Phase Dwelling Services and Feeders. For one-family dwellings and the individual dwelling units of two-family and multifamily dwellings, service and feeder conductors supplied by a single-phase, 120/240-volt system shall be permitted be sized in ... , In US households, the cooper wire size will be around 250-300 KCMil for 200-amp service for 300 feet away. On the other hand, the aluminum wire needs to be 400-500 KCMil. If you are living in the United State, it’s compulsory to have an idea of NEC (National Electric Code). It is a US-based benchmark that gives code telling what size, …, Hook the neutral wire to one of the larger lugs on the grounded (neutral) buss bar. 14. Install a #4 bonding wire from the ground bushing to the ground bar. 15. Connect the bonding strap or screw to the ground bar. Different manufacturers employ different methods to accomplish this grounding of the panel. 16. Install a #4 ground wire from the, Occupation. Electrician. Jul 7, 2020. #3. 4/0 AL is good for 180 amps. 250 AL is good for 205 amps. If you can show your calculated load is less than 180 amps, you can legally go up to the next standard size, a 200 amp breaker. That's code minimum. Over here, we would use 250 AL in a 2.5-3" depending on which size we felt like using., The size of wire required for a 200 amp service panel is 4/0 AWG. This is also sometimes referred to as “4 gauge” wire. This wire size will be able to handle up to 200 amps of power before it needs to be replaced. Be sure to use copper or aluminum wire that is rated for outdoor use when running the wire from the main power source to the panel., Occupation. Electrician. Jul 7, 2020. #3. 4/0 AL is good for 180 amps. 250 AL is good for 205 amps. If you can show your calculated load is less than 180 amps, you can legally go up to the next standard size, a 200 amp breaker. That's code minimum. Over here, we would use 250 AL in a 2.5-3" depending on which size we felt like using., This article discusses poisoning from copper. This article discusses poisoning from copper. This article is for information only. DO NOT use it to treat or manage an actual poison ..., Why are people putting 3/0 cu on a 200 amp single phase 3 wire service. They keep quoting 310.15 using 90 degree rating for copper as being 200 amp. I am questioning if they even understand what happens inside an electrical panel. Let me explain. Each ungrounded conductor of the service carries 100 amp a piece of the 200 …, What Wire Size Works Best for 200-Amp Service? If you plan to install or upgrade a 200-amp electrical service panel, you can choose between copper or …, 1385. 1560. 960. 1150. 1335. 2000. Note: View additional wire size charts from the list below. Maximum Allowable Ampacities for Conductors in Raceway, Cable or Earth (30°C) Maximum Allowable Ampacities for Conductors in Raceway, Cable or Earth (40°C) Maximum Allowable Ampacities for Conductors in Free Air (40°C) For ambient …, 200 Amp Service Ground Wire Size. It necessitates 2/0 copper wire for 200 amp service, or #4/0 aluminum or #4/0 copper-clad wire are other options. Many electrical contractors prefer a 4/0 plated copper or aluminum 200 amp service ground. The output voltage and the cable length decide which wire is utilized, as longer runs call for a larger gauge., On top of that, we will also calculate the 150 amp wire size for service 50 feet, 100 feet, 150 feet, 200 feet, and up to 500 feet away from the source. ... Case and point: Let’s express CM from the equation above and calculate it to determine the copper wire size for 240V 150 amp service 200 feet away with an allowable voltage drop of 3% ..., The wire size for a 100 amp service depends on the distance between the electrical panel and the power source. According to the NEC, the minimum wire size for a 100 amp service is #2 AWG copper or #1/0 AWG aluminum. However, this may not be sufficient for longer distances, as voltage drop can occur. It’s important to consult a …, Recycled copper crafts can be a lot of fun to make. Visit HowStuffWorks to learn all about making recycled copper crafts. Advertisement Making crafts by hand can be extremely rewar..., Generally, the ground wire size for a 200 amp service ranges from 2 AWG to 8 AWG. The best one is 2 AWG for copper wire and 4 AWG for aluminum or copper-clad aluminum wire. It is recommended to use them with 1.5-2.5 inches schedule 40 or 80 PVC conduit for underground service. It may differ depending on the materials, permission …, The wire size required for a 200 amp service typically falls between 3/0 and 4/0 AWG (American Wire Gauge) for copper wiring. These sizes provide the necessary ampacity to carry a 200 amp load without overheating or causing damage to the wire. , If copper is the go-to metal in a clean energy world, then why is its price stagnant, asks commodity writer Maleeha Bengali, who says perhaps it's because demand at present, es..., 310.15 Ampacities for Conductors Rated 0–2000 Volts. (B) Tables. (7) 120/240-Volt, Single-Phase Dwelling Services and Feeders. For one-family dwellings and the individual dwelling units of two-family and multifamily dwellings, service and feeder conductors supplied by a single-phase, 120/240-volt system shall be permitted be sized in ..., When installing a 200 Amp service, you will need at least 3/0 AWG copper wire or 4/0 AWG aluminum or aluminum copper-clad wire. Allowable ampacity of 3/0 …, 33.8. 626. 533. 630. 37.6. 720. 611. This electrical cable size chart amps provides information on the cross-sectional area of the conductor, the approximate …, In US households, the cooper wire size will be around 250-300 KCMil for 200-amp service for 300 feet away. On the other hand, the aluminum wire needs to be 400-500 KCMil. If you are living in the United State, it’s compulsory to have an idea of NEC (National Electric Code). It is a US-based benchmark that gives code telling what size, …, If you apply the NEC 80% rule, 250 kcmil wire can handle up to 204 amps. That’s why it is considered a 200 amp wire. Basically, we are trying to answer what ground wire do you need for 200 amp service. If you consult the copper ground wire size chart above, you can see that you will need a 2 AWG copper ground wire to adequately ground a 250 ..., A 50 amp sub panel will require at least 3 to 6 AWG wires. Here, I considered the distance around 55 feet. If the distance is longer, I suggest you use thicker and lower gauge wires. If the sub-panel distance from the main panel is 150 or 200 feet, you can use 4 AWG copper or 3 AWG aluminum or copper-clad wires., For 200 ampere service, you'll probably be using 4 AWG copper or 2 AWG aluminum. For gas piping, you can bond it to the same things as mentioned for water piping. However, the sizing of the jumper comes from Table 250.122, and is based on the size of the circuit that is likely to energize the piping. For example:, Allowable ampacity of 3/0 copper wire is 225 Amp, while the allowable ampacity of 4/0 aluminum wire is 205 Amp. 2/0 AWG copper wire is not completely out of the question, but its ampacity is 195 Amp-200 Amp, which will put it at a maximum load, so using 3/0 AWG copper is a better option. For grounding conductors, the minimum size …, 4 AWG copper ground wire for 200 amp service (at short distances). 0 AWG aluminum ground wire for 200 amp service (at short distances). Now, this is relevant is the hot wire is short. If you need a 200 amp service 50 feet, 100 feet, 150 feet, or 200 feet away (Example: 200 amp sub-panel 100 feet away), you also need to account for voltage drop. , 1 AWG copper wire for 125 amp service. This wire has 130A ampacity; more than the minimum required 125A ampacity. 2/0 AWG aluminum wire for 125 amp service. This wire has 135A ampacity; more than the minimum required 125A ampacity. Note on 125 amp breaker wire size: For breakers, we use the 80% NEC rule. That means that a 125A breaker can only ..., The best size of wire for 150 amp is 1 AWG copper or 2 AWG aluminum or copper-clad aluminum. If the temperature is around 194°F, use a 3 AWG aluminum wire gauge. The size of the wire should be around 1-1/4th inch wide. The right size for hot and neutral wires is 1 AWG copper or 2 AWG aluminum. For the ground wires, it is 6 AWG …