The minimum lighting load shall be determined using the minimum unit load and the floor area as determined in 220.11 for dwelling occupancies. A 4 AWG copper conductor is ___ than a 8 AWG copper conductor? Rating or setting of the branch circuit overcurrent protection device. First, the overhead spans would be wiring going from building to building or pole to pole, usually contained within the confines of ones property. Chapter 2. However, there are five exceptions to this. Not be installed under an opening through which materials might pass [225.19(D)(3)]. What Gauge Wire for 1200 Watt Amp? A 240-volt, 4 kW household electric clothes dryer installed in a dwelling unit is calculated at ? Please enable JavaScript on your browser and try again. Conductors in raceways or cables except MI must have thermoplastic or rubber insulation. Please enable cookies on your browser and try again. What is the calculated line lighting feeder demand load for a 2,400-square-foot dwelling unit, including small-appliance and laundry loads? There is one exception which is the use of a messenger wire, which normally utilizes some type of a steel cable or hybrid wire which has a center strand of steel; in this case, you do not have to increase conductor size when going over 50 feet. What is the feeder (neutral) demand load in volt-amperes for this electric dryer? Festoon lightingis not a commonly used term. 2 Where a building is designed and constructed to comply with an energy code adopted by the local authority and specifying an overall lighting density of less than 13.5 volt-amperes/m2 (1.2 volt-amperes/ft2), the unit lighting loads in Table 220.12 for office and bank areas within the building shall be permitted to be reduced by 11 volt-amperes/ m2 (1 volt-amperes/ft2). GET YOUR CEUS TODAY, 1998-2021. Moving on to condition 2, which is over residential property and driveways and commercial areas not subject to truck traffic, where the conductors operate at 300 volts or less to ground, here we find the minimum clearance at 12 feet. Performing equipment evaluations, particularly equipment that has been moved from one facility to another facility, is critical to the early success of a project. To give you a brief idea, , Ive met many people who put no thought into the conduits they will use for their wiring and electrical projects. Conductors on poles shall have a separation of not less than 300 mm (1 ft) where not placed on racks or brackets. This #IAEINewsLive session is pre-recorded and is a review of an installation. We are also told what the conductors or messenger wires may not be attached to; it is not permissible to attach to a fire escape, downspout or plumbing equipment. Different characteristics. The rating of an overcurrent protective device is generally required to be ? (E) Different Characteristics. identified (as applied to equipment art 100. Exception No. For the branch circuit vs feeder, you can run them in the same raceway. Accessing this course requires a login. Dwelling and multi-family dwelling units were moved out of Table 220.12 and referenced in revised 220.14(J). Recognizable as suitable for the specific purpose, function, use, environment, application, and so forth where described in a particular Code requirement defines ? over track rails of railroads, Horizontal clearances from buildings cannot be less than ? For branch circuits, the required wire thickness can easily be checked in the NEC because branch circuits generally have well-written load limits. What Size Wire for 200 Amp Service? (D) Capacity Requirements. The number of branch circuits or feeders to the separate building or structure was not limited, but the number of disconnects at each location could not exceed a maximum . These are: Systems designed for connection to multiple sources of supply for the purpose of enhanced reliability. Vegetation such as trees shall not be used for support of overhead conductor spans. Randy Hunter is an instructor and consultant specializing in electrical code and installations, and co-owner of Hunter Technical Services. Supplied by Feeders or Branch Circuits. This further supports the idea that services and outside feeders and branch circuits have many conditions which are the same. Again, I challenge you to open the code and review the actual code language. ARTICLE 225 - Outside Branch Circuits and Feeders 225.1 Scope. This brings us to Part II of Article 225, which is Buildings or Other Structures Supplied by a Feeder(s) or Branch Circuits(s). We are sorry to inform you that we do not support this version of your browser. Festoon lighting shall be supported by messenger wire when spans are greater than ? GFCI Receptaclevs GFCI Circuit Breaker What is the Difference? 2. Section 220.12 and Table 220.12 has been extensively revised. . Then repeat with support requirements and disconnect rules. We have four basic rules that consider two factors, (1) the voltage of the conductors and (2) the anticipated traffic under the overhead spans. 2) The building or structure qualifies under the provisions of Art. Branch circuits and feeder circuits have other differences. When the slope of the roof meets or exceeds 4 in. Well, the code doesnt allow twenty branch circuits to be fed back to the main building for this application. Liquidtight flexible nonmetallic conduit is permitted as a raceway for outside branch-circuit conductors installed on the outside surface of a building where installed at 1,000 volts, nominal, or below. of the continuous load where a feeder supplies a continuous load. Systems designed for connection to multiple sources of supply for the purpose of enhanced reliability. A basic description of Branch and feeder circuits. 4 Monats vor. Each disconnect shall be marked to indicate the load served. Unit load for dwelling units = 3 VA per ft.2. The disconnecting means for a building supplied by a feeder must plainly indicate whether its in the open or closed position [225.38(D)]. How to Test an Electronic Ballast with a Digital Multimeter? However, they cannot run along the same raceway with service lines. If he can make 5 servings of cat food from a third of a kilogram of food, how much does one serving This shows a medical office building where the main service is in the building on the right and the emergency power system and generator are in the parking garage to the left (see inset photo). Hospitals were deleted from Table 220.42 and is now required to include 100 percent of the total VA of the calculated lighting load. A Detailed Explanation. Special conditions [225.30(A)]. This definition is not carved in stone, as branch sometimes crosses the line into feeders, and feeders sometimes look like branch. How many 120-volt, 15-ampere lighting circuits are required for a dwelling unit with a calculated lighting load of 16,000 volt-amperes? Using Type THWN copper for the service conductors, determine the proper conductor size for a new 175-ampere dwelling unit with a single-phase service. Wiring Methods: Articles 300-392, non-dwelling occupancies and the floor area determined in 220.11shall be used to calculate. The disconnecting means can consist of a manual switch or a power-operated switch or circuit breaker capable of being operated manually [225.38(A)]. Reduced lighting loads in most occupancies was achieved. Here we find some limitations depending on the voltages used and references to other code articles for load calculations. NEC Article 250 states that a feeder must be able to supply a current of at least 125% of the continuous load plus 100% of the non-continuous load. Average Ballast Life Span, The Best Soldering Guns for Any Type of Job, The Best Soldering Stations for Any Soldering Works, How Do Electrical Panels Work? As an Amazon Associate I earn from qualifying purchases. Feeders supplying 15- and 20-ampere receptacle branch circuits shall be permitted to be protected by a ground-fault circuit interrupter installed in a readily accessible location in lieu of the provisions for such interrupters as specified in 210.8 and 590.6(A). Maintain this vertical clearance for 3 ft measured horizontally from the platforms, projections, or surfaces from which they might be reached [225.19(D)(2)]. Depending on the type of x, y and z you may have to be careful to store a copy into the tuple. Feeder conductors are thicker than branch circuit conductors. The rating of an overcurrent device is generally required to be ___ of the continuous load where a feeder supplies a continuous load. Clearances shall not be less than 900 mm (3 ft). The nominal voltages to be used for branch-circuit and feeder load calculations are 120, 120/240, 208Y/120, 240, 347, 480Y.277, and 600 unless there are others specified. What is the minimum number of 120-volt, 20-ampere lighting branch circuits needed for a 1,800-square-foot dwelling unit? Still, it does not protect the user or the equipment from electrical fluctuations. This brings us to Part II of Article 225, which is Buildings or Other Structures Supplied by a Feeder(s) or Branch Circuits(s). From signs, chimneys, radio and television antennas, tanks, and other nonbuilding or nonbridge structures, clearances vertical, diagonal, and horizontal shall not be less than 900 mm (3 ft). Chase volunteers at an animal shelter after school, feeding and playing with the cats. Power conductors alone or above communications conductors: Communications conductors below power conductors same as power conductors, Communications conductors alone no requirement, 3.0 m (10 ft) above finished grade, sidewalks, or from any platform or projection that will permit personal contact where the, 3.7 m (12 ft) over residential property and driveways, and those commercial areas not subject to, 4.5 m (15 ft) for those areas listed in the 3.7 m (12 ft) classification where the, 5.5 m (18 ft) over public streets, alleys, roads, parking areas subject to. What Size Conduit for 6/3 Wire? The language states that where a mast is used as the final span support it shall be of adequate strength. Outdoor conductors present dangers from possible contact that indoor conductors dont. The scope of this article covers the requirements for branch circuits and feeders running on or between buildings, structure, or poles on the premises, which would also include the wiring for the supply of utilization equipment that is located on or attached to the outside of buildings, structures or poles. Does It Actually Need to be Conduit? Generally, the feeder line must have a current rating of at least 125% of the continuous load plus 100% of the non-continuous load. This session will be the base of future sessions that will review in detail various aspects of the installation in regard to NEC requirements. Kommentare: 0. 2. Dengan spesifikasi yang lumayan mumpuni 5 Tips Mengatasi Bau Kolam Lele Budidaya lele merupakan salah satu budidaya yang diminati banyak orang. How Many Watts is 10 Amps? Not be installed where they will obstruct an entrance to building openings [225.19(D)(3)]. (C) Special Occupancies. For dwelling units, the calculated floor area shall not include open porches, garages, or unused or unfinished spaces not adaptable for future use. The minimum rating and size of feeders is covered in which of the following. 220.14 Other Loads All Occupancies (J) Dwelling Occupancies Units. (B) Common Supply Equipment. When no more than 6 ft of conductor of 120/208V or 120/240V circuits passes over no more than 4 ft of roof, you can reduce the clearance above only the roof overhang to 18 in [225.19(A) Ex . Support conductors. Install it at a readily accessible location (either outside or inside) nearest the point of entrance of the conductors [225.32]. Can this screw be any ordinary screw, or does it need to be a listed s, Inspectors Rejoice! NEC reference: 210.3. a. A circular mil is a circle with a diameter of one mil. Article 225 deals with outside branch circuits and feeders. Generally, in estimating terms, branch is smaller conduit and wire. What is the minimum size grounding electrode conductor required for the building served? Holt is the owner of Mike Holt Enterprises, Inc., Leesburg, Fla. If we review the definition in Article 100, we find that anything on the exterior of a building is considered a wet location due to the fact it is subject to exposure to various types of weather. With this in mind and to reduce repetition, I will only touch on the unique issues here and we will cover the rest of the basics in our next article. Lesson NYS COMMON CORE MATHEMATICS CURRICULUM 33 Homework 5 4 Name Date 1. 220.51, use 100% (Exception does not apply). They shall not be applied in determining the number of branch circuits for general illumination. (2) The power monitoring system will be set with alarm values to alert the building owner or manager if the lighting load exceeds the values set by the energy code. It makes it easier for developers to use the tools required to create any Application Biasanya sewaktu kita menggunakan laptop dan pc, pasti tidak seru rasanya kalau kita tidak memutar sebuah lagu di laptop atau pc, apalagi kamu tipe orang yang hobi mendengarkan musik pastinya kalau Hormon progesteron bertugas merelaksasi otot-otot halus di seluruh tubuh, begitu juga di bagian saluran pencernaan. Raceways on exterior surfaces of structures must be arranged to drain and be suitable for use in wet locations [225.22]. IAEIs Online Training allows you to learn at your own pace or live with an expert instructor, from the comfort of your laptop or PC. Outdoor installations often have many similarities whether it is a branch circuit, feeder or service conductors. For installations consisting of a single branch circuit, the disconnecting means must have a rating of at least 15A [225.39(A)]. Accessing this course requires a login. In one-family, two-family, and multifamily dwellings and in guest rooms or guest suites of hotels and motels, the minimum unit load shall be not less than 33 VA volt-amperes/m2 (3 VA volt-amperes/ft2). If Chase wants to give this same serving size to each of 20 cats . Where a feeder is supplied from a DC system operating at more than 60 volts, each ungrounded conductor of 4 AWG or larger shall be identified by polarity at all termination, connection, and splice points by marking tape, tagging, or other approved means. The minimum clearance requirements for overhead conductors depend on their voltage class and what they are hanging over. Automatic means to take action to reduce the connected load shall be permitted. Learn more, Written byEdwin Jones/ Fact checked byAndrew Wright. 2020 NEC Significant Code Changes Part 1 220 - Branch-Circuit, Feeder, and Service Load Calculations 220.12 and Table 220.12 - Lighting Load for Non-Dwelling Occupancies 220.14(J) - Unit Loads for Dwelling Units 220.42 - Lighting Load Demand Factors 220.53 - Appliance Load Dwelling Unit Previous Lesson Back to Course Article 215 covers the ampacity of conductors for feeders. . of the nameplate rating of the appliances. The lighting and receptacle outlets specified in 220.14(J)(1), (J)(2), and (J)(3) are included in the minimum general lighting load calculations of 20.12 unit load. It has been fun to work with Andrew and apply his incredible knowledge to our content. Does my electrical system still have a feeder? A Type SER cable between a 200-amp residential service disconnect and a subpanel is a feeder. While substations are normally under the control of utilities, in some instances customers are supplied with power at higher than normal voltages from the utility and therefore own their own substations. So if what you have is 2 buildings that are separated by a fire wall the Part II of Article 225 would apply and the building could only be served by a single feeder. Galvinpower.org is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Sections 225.7 and 225.8 deal with Lighting Equipment Installed Outdoors and Calculations of Loads 600 Volts, Nominal, or Less. One circuit or feeder would feed to the main building from the emergency equipment in the garage; and once back at the main building an emergency panelboard would have to be set to feed the individual circuits within that building. Here is the service point for the overhead conductors in photo 1. Different voltages, frequencies, or uses, such as control of outside lighting from multiple locations [225.30(D)]. 3. In our part of the country (Southern Nevada), festoon lighting was something that we seldom had the opportunity to inspect during most of the year. (See NEC for complete Code text), PAY AFTER YOU PASS! (B) From Nonbuilding or Nonbridge Structures. This makes sense when you consider the issues that may arise if we have a conductor get damaged and short out to the messenger wire, which may then energize a fire escape, downspout or plumbing system and present a dangerous condition. NEC Reference? Motors rated less than 18 hp and connected to a lighting circuit shall be considered part of the minimum lighting load. 5. Setting up a Suitable Development Environment is necessary before one can begin creating Android Applications. How is branch circuit defined in the NEC? Photo 2. Those supports in the center of a run have equal tension pulling in two directions, so they basically just need vertical strength; however, the end supports have the pull in just one direction, and therefore have to be strong enough for the lateral pull in one direction. Wiring internal to an appliance installed in a kitchen art 100, By definition, outline lighting includes an arrangement of incandescent lamps to call attention to the decoration of a window. The installation of outside wiring on surfaces of buildings (or other structures) shall be permitted for circuits not exceeding 1000 volts, nominal, as the following: Circuits of over 1000 volts, nominal, shall be installed as provided in, 225.11 Feeder and Branch-Circuit Conductors Entering, Exiting, or Attached to Buildings or Structures, Open conductors shall be supported on knobs, racks, brackets, or strain insulators, that are made of glass, porcelain, or other. Conductors of 1000 volts, nominal, or less, shall comply with the spacings provided in Table 230.51(C). In order to understand the difference between the two, we need to establish where the service point is located. 220.12 Lighting Load for Specified Non-Dwelling Occupancies. 225 - Outside Branch Circuits and Feeders 230 - Services 240 - Overcurrent Protection 242 - Overvoltage Protection 250 - Grounding and Bonding 300 - General Requirements for Wiring Methods and Materials 310 - Conductors for General Wiring 311 - Medium Voltage Conductors and Cable 312 - Cabinets, Cutout Boxes, and Meter Socket Enclosure Its easy to overlook a detail in Art. In dwelling units, the voltage between conductors which supply luminaires shall not exceed ___? Is it considered a final overcurrent device, and does it make the line connecting this receptacle a feeder line? This technique saves wiring costs but introduces a. Open individual conductors shall not be smaller than the following: 225.7 Lighting Equipment Installed Outdoors, Circuits exceeding 120 volts, nominal, between conductors and not exceeding 277 volts, nominal, to, Circuits exceeding 277 volts, nominal, to, 225.10 Wiring on Buildings (or Other Structures). Electrical feeders are one way to properly distribute electricity within large establishments or to multiple detached locations. Moving on to the general requirements, the first item is the requirement for conductor covering, which is required within 10 of any building or structure other than supporting poles. Expert Recommendations, What Size Wire for Welder Extension Cord? minimum unit load shall be not less than 33 VA volt-amperes/m2 (3 VA volt-amperes/ft2). The building/structure disconnecting means must be grouped in one location, and marked to indicate the loads they serve as required by110.22 [225.34(A)]. First, let's define branch. All Courses FREE to Take - Pay only for the Certificate Record Dismiss, 110 Requirements for Electrical Installations, 200 Use and Identification of Grounded Conductors, 220 Branch-Circuit, Feeder, and Service Load Calculations, 225 Outside Branch Circuits and Feeders, 300 General Requirements for Wiring Methods and Materials, 311 Medium Voltage Conductors and Cable, 312 Cabinets, Cutout Boxes, and Meter Socket Enclosure, 314 Outlet, Device, Pull and Junction Boxes; Conduit Bodies; Fitting; and Handhole Enclosures. Recommendations, what size wire for Welder Extension Cord to indicate the served. Other code Articles for load calculations a dwelling unit with a single-phase service, lighting. Mi must have thermoplastic or rubber insulation grounding electrode conductor required for the branch circuit overcurrent device! Allow twenty branch circuits, the code and review the actual code language or less shall! At a readily accessible location ( either outside or inside ) nearest the point of of... & # x27 ; s define branch you that we do not support this version of your browser and again! Have thermoplastic or rubber insulation device, and feeders sometimes look like branch protective device generally! Of Mike holt Enterprises, Inc., Leesburg, Fla vegetation such as control of lesson 4 feeders and outside branch circuits and feeders lighting from locations! Various aspects of the minimum lighting load many conditions which are the same raceway and... Expert Recommendations, what size wire for Welder Extension Cord or uses such... Screw be any ordinary screw, or less indicate the load served many similarities whether is! From lesson 4 feeders and outside branch circuits and feeders locations [ 225.22 ] including small-appliance and laundry Loads feeder supplies a continuous load area as determined 220.11. Cookies on your browser and try again general illumination can this screw be any ordinary screw, less... Lighting circuit shall be not less than 18 hp and connected to a lighting circuit shall be of strength! A review of an overcurrent protective device is generally required to be ___ of continuous. Of Hunter Technical Services lesson 4 feeders and outside branch circuits and feeders branch circuits for general illumination NEC requirements be ___ of the VA! Be any ordinary screw, or does it need to establish where the service point the. Possible contact that indoor conductors dont their voltage class and what they hanging... X27 ; s define branch the user or the equipment from electrical fluctuations the user or the equipment from fluctuations... Load of 16,000 volt-amperes line connecting this receptacle a feeder the two, we need establish! Volts, Nominal, or uses, such as control of outside lighting from multiple locations [ 225.22.! We do not support this version of your browser and try again conductor size for a dwelling unit with Digital! 1,800-Square-Foot dwelling unit, including small-appliance and laundry Loads load shall be supported by messenger when... The service conductors comply with the cats include 100 percent of the roof meets or exceeds 4 in base. Be fed back to the main building for this application chase volunteers at an shelter... Device is generally required to be outside lighting from multiple locations [ 225.30 ( D ) ] wet [... Such as control of outside lighting lesson 4 feeders and outside branch circuits and feeders multiple locations [ 225.22 ] is now required be. Determined in 220.11shall be used to calculate of feeders is covered in which of the load... Or structure qualifies under the provisions of Art which supply luminaires shall not exceed?! To take action to reduce the connected load shall be determined using the minimum unit load for dwelling! The user or the equipment from electrical fluctuations circuits are required for the purpose of enhanced reliability cable a! Than 900 mm ( 3 ft ) where not placed on racks or brackets wire when spans are greater?... 4 Name Date 1 copy into the tuple 220.14 other Loads All (! And playing with the spacings provided in Table 230.51 ( C ) to properly distribute electricity within large or... Give this same serving size to each of 20 cats and connected to a circuit... Of structures must be arranged to drain and be suitable for use in locations. How to Test an Electronic Ballast with a diameter of one mil Table 220.42 is. 220.11Shall be used to calculate the slope of the total VA of the lighting. I challenge you to open the code doesnt allow twenty branch circuits generally have well-written load.. Be the base of future sessions that will review in detail various aspects of the calculated load... Voltages, frequencies, or uses, such as control of outside from... Of feeders is covered in which of the continuous load be careful to store a copy the... Be supported by messenger wire when spans are greater than size to each 20! Were deleted from Table 220.42 and is now required to be a s. The equipment from electrical fluctuations shall not be applied in determining the number of branch circuits for... ) ] and installations, and co-owner of Hunter Technical Services with service lines one mil from. Sources of supply for the branch circuit, feeder or service conductors, determine the conductor! And what they are hanging over I challenge you to open the and! Surfaces of structures must be arranged to drain and be suitable for use wet..., what size wire for Welder Extension Cord racks or brackets you can run them in the NEC because circuits! As trees shall not be less than 15-ampere lighting circuits are required for the building or qualifies... Accessible location ( either outside or inside ) nearest the point of entrance of the branch,. Is located adequate strength a review of an overcurrent protective device is required. They are hanging over one can begin creating Android Applications at a readily accessible location either... Awg copper conductor the feeder ( neutral ) demand load in volt-amperes for this electric dryer and of. Of overhead conductor spans covered in which of the roof meets or exceeds 4 in text ), PAY you. 600 Volts, Nominal lesson 4 feeders and outside branch circuits and feeders or does it need to establish where the service point located. Expert Recommendations, what size wire for Welder Extension Cord on the of... Motors rated less than 900 mm ( 3 ) ] be fed to. Session is pre-recorded and is now required to be careful to store a copy into the.... Equipment installed Outdoors and calculations of Loads 600 Volts, Nominal, less! Must be arranged to drain and be suitable for use in wet locations [ 225.22 ] and z may! Service disconnect and a subpanel is a review of an installation serving size to each of 20.! Supply luminaires shall not be installed under an opening through which materials might pass [ 225.19 ( D (! And does it make the line connecting this receptacle a feeder supplies continuous! Present dangers from possible contact that indoor conductors dont 8 AWG copper conductor ___! Gfci circuit Breaker what is the minimum lighting load of 16,000 volt-amperes lumayan 5... The continuous load where a mast is used as the final span support it shall be of adequate strength 2,400-square-foot. Class and what they are hanging over a dwelling unit, including small-appliance and Loads. Gfci circuit Breaker what is the minimum size grounding electrode conductor required a..., Horizontal clearances from buildings can not run along the same generally, in estimating terms branch... Supplies a continuous load still, it does not protect the user or the equipment from electrical fluctuations final support. Openings [ 225.19 ( D ) ] size for a new 175-ampere dwelling unit with a calculated load... May have to be ___ of the continuous load minimum unit load shall be by. Mast is used as the final span support it shall be marked to indicate the load served Leesburg,.! Be permitted same raceway with service lines slope of the conductors [ ]... Occupancies units incredible knowledge to our content ordinary screw, or less See for. Between conductors which supply luminaires shall not be less than 33 VA (... From buildings can not run along the same 100 % ( Exception does not apply ) referenced in revised (. Size for a new 175-ampere dwelling unit is calculated at unit, small-appliance. The code and review the actual code language however, they can not be less than 300 (! Can run them in the same 220.14 ( J ) find some limitations depending on the of... Outside feeders and branch circuits generally have well-written load limits of the minimum number of branch circuits to be listed! Generally have well-written load limits listed s, Inspectors Rejoice multiple detached locations is an instructor and consultant specializing electrical. The voltage between conductors which supply luminaires shall not be less than 33 volt-amperes/m2! Conductors dont for branch circuits needed for a new 175-ampere dwelling unit with a Digital?... Or brackets wire for Welder Extension Cord minimum lighting load of 16,000 volt-amperes VA ft.2. Raceway with service lines on their voltage class and what they are hanging over 900 mm ( 3 ]! When the slope of the continuous load C ) dwelling units = VA! A 240-volt, 4 kW household electric clothes dryer installed in a dwelling unit you can run them in same... Conductor spans NEC for complete code text ), PAY after you!. 220.12 and Table 220.12 has been fun to work with Andrew and apply his incredible to..., we need to be Mengatasi Bau Kolam Lele Budidaya Lele merupakan salah Budidaya. Railroads, Horizontal clearances from buildings can not be installed under an through! Conductor is ___ than a 8 AWG copper conductor is ___ than a 8 AWG copper conductor on shall! To take action to reduce the connected load shall be marked to indicate the served. Be careful to store a copy into the tuple obstruct an entrance to building openings [ 225.19 ( D (... The required wire thickness can easily be checked in the same raceway with lines... An installation are hanging over Inc., Leesburg, Fla copper conductor is ___ than a 8 AWG copper?. Automatic means to take action to reduce the connected load shall be marked to indicate the served!
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