Conduit fill chart

This video is packed with useful information on how to calculate examples of conduit fill using the National Electrical Code as the basis. If you've struggl...

wire fill conduit 1 wire size (awg, mcm) trade size catalog number hub type 6 4 3 2 1 1/0 2/0 3/0 4/0 250 300 350 400 500 4” (-0)Model #: 9733SW8809. SOUTHWIRE, 16/3 SPT-3 STRAIGHT 6' GRAY FLAT INDOOR REPLACEMENT POWER SUPPLY CORD. Model #: 9736SW8809. Ultratite® Type NM. Specifications PDF. 1-6 of 6. View. Southwire offers a wide range of wire & cable products for HVAC systems. Explore our catalog and find what you need.conduit to a box or enclosure • UL listed liquidtight flexible metal conduit fittings are suitable for use in the following hazardous locations under: NEC 501-4(b), 502-4(a), (2)503-3(a) Class 1 Div.2, Class II Div.1 and 2, Class III Div.1 and 2 and are suitable for grounding in sizes 3/8" through 1-1/2" under NEC 351-I STANDARD MATERIALNo. of Cables at 40% Conduit Fill Based on Trade Size of the Conduit (inches) Conduit Fill Guide MOHAWK Cabling Excellence for Open Architecture 9 Mohawk Drive, Leominster, MA 01453 800 422 9961 www.mohawk-cable.com Cable Type O.D. 0. 7 5 1 1. 2 5 1. 5 2 2. 5 3 3. 5 4 Augmented Category 6Conduit Capacity Factors (Exceeding 3M in length) To determine the trunking size needed, multiply the quantities of each cable by the appropriate factor, and compare the total with the trunking capacity figures shown. For example: What size of standard trunking is needed for 10 in number 35mm² cables and 16 in number 4mm² cables?Fill Ratio Calculator. This calculator will allow you to find the fill ratio using one, two, or three cables within the conduit. If you only have one cable for your conduit, please use only the first cable diameter field. Once the fill ratio calculator is computed, the program tells you if it falls within Corning’s recommended guidelines.

ÐÏ à¡± á> þÿ µ ž þÿÿÿ ...As NEC 2017 Chapter 9 – Table 4. Allowable Percent Fill. : – 53% for 1 no. of cable. – 31% for 2 nos. of cable. – 40% for over 2 nos. of cable. Conduit fill calculation result is based on normal conditions of good practice cable routing and alignment of conductors. For example, the total number of bends between 2 pull points can not ...Set to 2011 NEC code, Conduit Fill Tracker is a conduit fill calculator that finds allowable fill rates and keeps track of any combination of conductors as you switch between raceway types and sizes. Rather than reading lengthy conduit fill charts, use the easy-to-read graph to see current and remaining fill percentages and get alerts when you ...Subscriber-only power tool discounts. Master conduit sizing with confidence. Our comprehensive fill chart simplifies the process of EMT, IMC, Rigid, and Flexible Metal conduits. Learn more about Global Metal Electrical Conduit Market Trends for 2023 and Toolup's expertise as a top Greenlee distributor. Shop our selection of Greenlee …June 29, 2021. The PVC conduit fill chart offers a quick and convenient suggestion to determine the number of wires in a conduit. There are several types of PVC conduits on the chart i.e. SCH 40 and SCH 80. The PVC conduit fill chart fully complies with NEC 2020 chapter 9. For a mix of wire type and size, an online tool to decide conduit fill ...NEC Table Used To Select Conductor Area. NEC Chapter 9 Table 5 is used to calculate the total area of conductors. NEC Table Used To Calculate Conduit Size. NEC Chapter 9 Table 4 is used to calculate conduit size, through dimensions and percent area of chosen conduit, using the total calculated conductor area.Results. Enter all information and click "Calculate" button to get the calculation results. 1 Calculations are precise and do not take into account waste or slop. 2 Duct bank encasement does not account for volume that the conduit spacers will consume. 3 Spacers are based on 1 spacer per 5 feet of conduit. Smash Budgets with Daily Production Goals.

1527 44 76 103 170 243 3766480.0079 5030.100 1424 39 69 94 155 221 3415880.0087 4560.105 1222 36 62 85 141 201 3115350.0095 4160.110Filling out the FAFSA can qualify you for college scholarships, grants, and inexpensive loans—and even boost your odds of acceptance. By clicking "TRY IT", I agree to receive newsl...Re: conduit sizing for multiple wire sizes Chapter 9 table 5 of the code book states the square inch area for each type of conductor. Simply add together the sq. inch volume for all of the conductors needed in the pipe. Chapter 9 table 1 will tell you what percentage of pipe fill you are allowed for the number of conductors you will have in the ...NEC Tables Used To Calculate Current-Carrying Conductor Rating. NEC Table 310.16 is used to select an insulated conductor rated 0 through 2000 volts, 60°C through 90°C, based on ambient temperature of 30°C, using the selected or calculated ampacity and temperature ratings. For ambient temperatures other than 30°C, temperature correction ...

Madness project nexus modded.

Conduit Fill Table This conduit fill chart is used to determine how many wires can be safely put into non-PVC conduit tubing or pipe. Each row going across is a different conduit size and type of metal conduit, either Electrical Metal Tubing (EMT), Intermediate Metal Conduit (IMC), Galvanized Rigid Steel Pipe (rigid metal conduit, RMC), or ...Conduit Size and Fill Calculator – Electrical Guy. This calculator helps you determine the maximum conduit size required for a given number of conductors. Enter the values below and click “Calculate” to see the max conduit size as per the Canadian Electrical Code (2021 CEC), CSA C22.1:21.Mar 30, 2020 ... There isn't a chart that says a specific size, you have to calculate it from the exact cable size per NEC Chapter 9, Table 1, Note 9:.Calculate Your Conduit Fill Percentage. A great tool to help electricians, engineers and contractors answer the question, "What size conduit do I use per the NEC®?" The app will calculate the conduit fill percentages and jam probability for multiple conductors per NEC® Guidelines. Simply enter the conduit type and size, then specify your ...A 40% full conduit may look completely full, for example. Conduit Fill Chart. This table provides the initial recommended 40% fill capacity for Ethernet and coaxial cable based upon conduit trade size and cable jacket diameter. Take note that conduit less than 3/4" (3/4 trade size) is not recommended for communications cable installation.Download Derated: Conduit Fill and enjoy it on your iPhone, iPad, and iPod touch. ‎Experience the simplicity of Derated, a cutting-edge conduit fill calculator designed with electricians in mind. This intuitive app goes beyond the basics, allowing you to effortlessly calculate conduit fill while simultaneously derating wires' ampacity.

NEC Table 316(B)(2)(a) requires de-rating the ampacity of the conductors when more than three current-carrying conductors are in a raceway. I had a specific situation that sparked a discussion. I had #12 THHN in 1" conduit with a 20 amp. breaker. 40% fill says you could have 26 wires but the above table seems to limit you to 9 current carrying ...No. of Cables at 40% Conduit Fill Based on Trade Size of the Conduit (inches) Conduit Fill Guide MOHAWK Cabling Excellence for Open Architecture 9 Mohawk Drive, Leominster, MA 01453 800 422 9961 www.mohawk-cable.com Cable Type O.D. 0. 7 5 1 1. 2 5 1. 5 2 2. 5 3 3. 5 4 Augmented Category 61527 44 76 103 170 243 3766480.0079 5030.100 1424 39 69 94 155 221 3415880.0087 4560.105 1222 36 62 85 141 201 3115350.0095 4160.110For #4 and larger conductors forget the cu in dimensions calculation. You'll need to size the LB just as you would a pull box with the 6X dimension. The exception is if the conduit body is marked with a conductor size greater than the 6X calculation you are permitted to use that information. 314.28 (A) (3). C.Find the number of wires in a conduit based on conduit size, wire type and conductor size using the conduit fill chart. The chart complies with NEC 2017 chapter 9 and shows the recommended fill percentage for EMT, RMC and IMC conduits.Metallic conduit should be properly bonded and grounded to AC ground for safety. If bundling cannot be avoided, follow the table guidelines above and also cross reference with Conduit Fill Chart for Ethernet and Coaxial Cable ; Keep bundles separate by at least 1.5" in cable tray to allow for air movementSimply select the conductor's insulation and then the conduit type and get the wire fill for each size. Enter Information. ... can get the specific ampacity and conductor properties for a wire using our General Wire Calculator or our Specific Wire Calculator. Related Calculators. Circtuits/Feeders Power/Amps/Voltage Feeder /Voltage Drop Motors ...A 40% full conduit may look completely full, for example. Conduit Fill Chart. This table provides the initial recommended 40% fill capacity for Ethernet and coaxial cable based upon conduit trade size and cable jacket diameter. Take note that conduit less than 3/4” (3/4 trade size) is not recommended for communications cable installation.Flexible Metallic Conduit (FMC) provides alternative where a rigid conduit would be difficult to install due to bending need. The below table of Flexible Metallic Conduit is in line with NEC. Conduit is able to contain an allowable fill percent. Hence, a conduit fill calculation is provide here. Flexible Metallic Conduit parameters such as ...183. Conduit Capacity Chart. Important Note: This conduit capacity. chart is to be used as a general guideline. Because local codes can var y from the. National Electrical Code, W est Penn Wire. cannot be held responsible for this informa-. tion as it pertains to your installation. Proper.

PVC Conduit Fill Table. This is a combination of Table C10 (PVC Schedule 40) and Table C9 (PVC Schedule 80) Based on Table 1 Chapter 9 of the 2005 National Electric Code. Trade Size.

According to the chart you could fit 9, #10 conductors in 3/4" sch 40. I wouldn't put that many in. 1" conduit minimum but keep in mind pulling in 4 more wires later on top of 5 that are already there is different than pulling all 9 at once. 1-1/4" would be a safer bet but its a trade off with price. U.In each conduit fill chart, each row (going across) shows different conduit sizes and types: either Electrical Metal Tubing (EMT), Intermediate Metal Conduit (IMC), or Galvanized Rigid Steel Pipe (Rigid metal conduit, RMC). Each column (going up and down) is a different gauge of wire, either AWG or MCM. cables in the conduit, and the number of conduit bends. The following table provides maximum recommended fill for many standard conduit sizes at the maximum fill ratio specified by the United States National Electrical Code (NEC) for domains within its scope. This also assumes no more than two 90° bends between pull points. Guidance is also ... Raco 3422 1/2 Inch Malleable Iron Non-Insulated 90 Degrees Liquidtight Conduit Connector. Raco / Hubbell | 3422. Independent Electric Part #: 6485. $1,095.41/c (100 ea) ea. Add to Cart.Ethernet Cable Conduit Fill Chart Guideline. This information is intended as a guideline. Because conduit sizes may vary by manufacturer, please verify all dimensions prior to using this reference chart. This guideline is based on National Electrical Code (USA) recommendations for conduit fill of runs with no more than two 90° bends.Raceway Conduit Fill Calculator. Raceways must be sized so that conductors can be easily pulled and enough space is allotted between each conductor to prevent overheating. This program is in congruence with NEC Code and calculates the number of same size conductors that can be used in a single raceway. As per NEC, the tool limits the fill to 40 ...Size the conduit at 40% fill [Chapter 9, Table 1] using Chapter 9, Table 4 (select the table for PVC Schedule 40). Trade size 3 Schedule 40 PVC has an allowable cross-sectional area of 2.907 sq in. for over two conductors in the 40% column. Here's another example to help drive this process home.October 8, 2023 by GEGCalculators. Wireway fill refers to the calculation of the percentage of available space within a wireway that is occupied by conductors and components. It ensures that the wireway is not overfilled, preventing overheating and maintaining safety. The calculation considers factors like wireway size, conductor size, and ...

Crash champions grafton.

Duksan electera shelbyville tn.

Once you know the wire gauge, the table in chapter 9 can show you the maximum number of wires you can run through the conduit for that gauge. The NEC expects contractors to apply the 40 percent rule to calculate the conduit fill capacity. In other words, they don't expect a contractor to use more than 40 percent of a conduit's total capacity.Electrician. Apr 26, 2021. #12. winnie said: The basic requirement in the NEC is that when you have 3 or more conductors in a conduit, the total cross section of the conductors must be no more than 40% of the open cross section of the conduit. (There are different % values for 1 and 2 conductors, and special rules for conductors that are not ... The diagram shows conductors/cables lying in a conduit in sets of one, two, three and four. NEC 2011 Chapter 9, table 1, shows that the maximum conduit allowance. As you can see two conductors is the smallest maximum fill. Looking back to the diagram, this is due to the two conductors or cables forming an oval, rather than a circle. chapter 9 table 1. The percentage to use for conduit fill when installing one cable assembly with five conductors in the cable assembly is ? . 53%. chapter 9 table 1. When calculating the number of 10 AWG conductors that may be installed in a raceway, when the calculation results in a decimal of ? or greater, the calculated number can be ...Nov 5, 2015 ... Is there a specific method or table to use for finding this out? Also is there a specific rule that states how close a smoke detector and ...Electrical raceway, conduit, conduit fittings, cable trays, all types of conduit from flexible and rigid metal conduit to liquidtight, PVC and other nonmetallic conduit, wireway and wireduct, Elliott Electric Supply has your conduit and fittings online or on location.Most other standards will say to use Chapter 3 and Table 9 for fill and most LV cable manufactures give fill ratio tables based on Chapter 3 also. A. Ansel Member. Location New York, NY. ... Note that if you have to go through a fire rated wall, that conduit fill may be an issue with properly applying Firestop, or may require you to use a more ...The Wire Mesh / Cable Tray Fill table in below section shows the number of cables and the load in lbf/lineal foot developed by typical 4 pair and 6 pair cable weighing 20 lb/kft and 40 lb/kft, respectively. While this table is a useful guide, actual loads must be calculated using the cable specified for any project. Cable tray fill calculatorA chart of data about conduit fill percentages of non-plenum cables is presented to show how much difference reducing or increasing the NEC standard number would make. Possibilities of combining MediaTwist cable with other cables for addressing the conduit space issues are explained with the help of an example of an actual construction site.Conduit fill Chart. While conduit fill can be calculated mathematically, this conduit fill chart simplifies the process of determining how many wires rigid conduit can safely hold according to the 2023 National Electrical Code.Massachusetts. Mar 7, 2009. #4. nhfire77 said: I cannot point to a specific reference here, but yes conduit fill applies to Fire alarm circuits, limited and nonlimited, at least in my experience. I was called on it once by an inspector in fact, but it was less than 24" so the nipple rule covered it. I think your inspector was wrong. ….

Conduit fill is essential to prevent overheating and ensure safe electrical operation by avoiding overcrowding of wires within a conduit. Our NEC Conduit Fill Calculator tool determines the appropriate size of electrical conduit needed to safely encase electrical wires in a building. To use it, enter conduit type and then conduit size.A 40% full conduit may look completely full, for example. Conduit Fill Chart. This table provides the initial recommended 40% fill capacity for Ethernet and coaxial cable based upon conduit trade size and cable jacket diameter. Take note that conduit less than 3/4" (3/4 trade size) is not recommended for communications cable installation.Once that is determined, treat the fill calculation the same as the calculation that was done for the individual conductors. # of cables X [0.7854 X d2] = in.2 total for all cables Use the square inch total of all of these cables in Table 4 of Chapter9 to determine the size of EMT necessary to hold the cables.Hello fellow forum fellas! Where in the NEC is the table for individual conductor circular mils? (so I can perform conduit fill & Voltage drop calculations) Any help would be greatly appreciated.:)Remember: Conduit fill has nothing to do with whether or not a wire is current carrying. Wire fill is wire fill. Every wire counts towards the fill. ... In my case above, I have 14 CCCs inside a 2" conduit. According to the conduit fill chart I can jam 101 #12 THHNs into a 2" EMT, doesn't mean I would do it or even anywhere close to it, just ...Mar 30, 2020 ... There isn't a chart that says a specific size, you have to calculate it from the exact cable size per NEC Chapter 9, Table 1, Note 9:. NEC CONDUIT FILL Maximum Number of Conductors In Conduit or Tubing: Type of Wire Conductor Size Conduit Size (Inches) AWG/kcmil 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 3 1/2 4 5 6 TW, XHHW 14 9 15 25 44 60 99 142 — — — — — 12 7 12 19 35 47 78 111 171 — — — — 10 5 9 15 26 36 60 85 131 176 — — — 8 2 4 7 12 17 28 40 62 84 108 — — Just for the sake of argument, I would think then that if splices are present in a conduit body, the conduit fill of the entire raceway system on all sides of the conduit body is limited by the # of conductors allowed by the available volume of the conduit body. In this case the 3/4" EMT on both sides of the LB is limited to 2 #12AWG up to the ... Conduit fill chart, BNumber of cubic inches this amount will fill when set. See internal volume requirements for EYS, EZS, EYD, EZD and EYSR sealing fittings and ES sealing hubs (see product pages for details). CA sixth pouch, containing an appropriate quantity of Chico X fiber, is included in these cartons. Cu. in. fill per pouchB No. of pouches per carton Cat., The conduit-fill limit is currently addressed by the ANSI/EIA/TIA-569 standard, "Commercial Building Standard for Telecommunications Pathways and Spaces," which includes a conduit-fill table from Chapter 9 of the 1990 National Electrical Code (NEC). One goal of the task group is t, To determine the sizes of conduit you need into request to fit your chosen cable, enter you Belden cable part numbered or the thickness of your tube. Next, select the type of fitting you are specifying. Then, under # from Cables, enter your details and hit "Calculate." Our online tooling helps electricians, engineers and contractors calculate ..., Conduit Fill Chart. Calculate: Conduit Size Needed Based on Cables % Conduit is filled. Using: Part Number. Cable Diameter. Select conduit: What is the trade size of the conduit? What is the maximum percentage of conduit fill? Search by Part # or description: *Only one cable can be added when calculating how much a conduit can hold ..., As NEC 2017 Chapter 9 - Table 4. Allowable Percent Fill. : - 53% for 1 no. of cable. - 31% for 2 nos. of cable. - 40% for over 2 nos. of cable. Conduit fill calculation result is based on normal conditions of good practice cable routing and alignment of conductors. For example, the total number of bends between 2 pull points can not ..., For XHHW (Aluminum) wire assume wire size is smaller, therefore # of conductors could be greater in a given conduit size., Southwire ® Conduit Fill Calculator. Designed to help determine conduit size, fill percentages, and jam probability per the NEC® by simply entering the conduit type, size, and specifying the conductors. Download., 40% FILL CONDUIT BODIES. NECLB-6. Dimensions Applications • Specially designed to meet National Electrical Code Article 370-28(a) (2) for angle pulls where the distance between the raceway entry and the opposite wall of the fitting must be at least six times the trade diameter of the raceway. • A pull box with easy access to conductors., Why use a 50% Wire Fill? As specified in NFPA79-2012 section 13.5.2, Percentage Fills of Raceways (Ducts), a 50% wire fill is given as the maximum wire fill capacity in all Panduit Wiring Ducts. This helps ensure general safe wiring practices are followed. In actual practice, a 50% wire fill is the maximum amount of wiring, This is found in the NEC Chapter 9 Table 4 for a rigid conduit = 1 1/4”nipple = 1.526 x 60 % = .9156 square inch which is larger than the total square inch of conductors used .7286. A 1”nipple = .888 x 60%=.5328 square inch which is too small. The answer would be 1 …, The human body is fascinating to study, which is why anatomy is such a popular subject. If you’re a student or the parent of a student – or if you’re just interested in studying an..., As Mr. Wizard said, you won't need to derate if not longer than 24", and you can fit more than usual in such nipple, but fill calc's do still apply. You can use 60% of the area if so. 91 #12's or 57 #10's. You should be able to start your derating from the 90 deg C column, if THHN, that's what these are based on., Conduit & Trunking Capacity Chart CABLE SPACING FACTORS To determing the conduit size needed, multiply the quantities of each size of cable by the appropriate factor, compare the total with the conduit figures shown. EG. What size of conduit is required for 6 No. 4mm² cables in a three metre run ..., Secure the conduit in a bending device or vice to ensure stability during the bending process. Position yourself in a comfortable stance and align the bending device or bender with the marked location on the conduit. Apply consistent pressure to the bending device, gradually bending the conduit to a 45-degree angle., Calculate Your Conduit Fill Percentage. A great tool to help electricians, engineers and contractors answer the question, "What size conduit do I use per the NEC®?" The app will calculate the conduit fill percentages and jam probability for multiple conductors per NEC® Guidelines. Simply enter the conduit type and size, then specify your ..., Southwire ® Conduit Fill Calculator. Designed to help determine conduit size, fill percentages, and jam probability per the NEC® by simply entering the conduit type, size, and specifying the conductors. Download., electrician.com Racewayfill Calculator by electrician.com This program calculates the number of same size conductors using the .8 roundoff method. In the Auto Mode this program limits the fill to 40 per cent for over 2 conductors, 31 per cent for only two conductors, and 53 percent for one conductor. Note: THWN, THHN, and THWN-2 have the same ..., Ampacities shown in Table 3.10.1.69, Table 3.10.1.70, Table 3.10.1.81, and Table 3.10.1.82 are for cable with shields grounded at one point only. Where shields are grounded at more than one point, ampacities shall be adjusted to take into consideration the heating due to shield currents. (2) Burial Depth of Underground Circuits., Conduit Fill Chart Proudly Manufactured in Manchester, NH www.usa.proterial.com Contact Us: 1. (800) 772-0116. Title: Conduit Fill Chart Created Date:, A tax table chart is a tool that helps you determine how much income tax you owe. To correctly read a federal income tax table chart, here are a few things you need to do so that y..., Conduit fill is essential to prevent overheating and ensure safe electrical operation by avoiding overcrowding of wires within a conduit. Our NEC Conduit Fill Calculator tool determines the appropriate size of electrical conduit needed to safely encase electrical wires in a building. To use it, enter conduit type and then conduit size., Hello fellow forum fellas! Where in the NEC is the table for individual conductor circular mils? (so I can perform conduit fill & Voltage drop calculations) Any help would be greatly appreciated.:), Location. Florida. Nov 16, 2008. #1. I have a copper wire size and conduit quick reference table, and when you get up to and over 60 amps, the conduit size is larger with the grounding wire than without the grounding wire. For example 60 amps, 4 wire cu. calls for 4 #6, 3/4" EMT conduit, but 60 amps, 4 wire with ground cu. calls for 4 #6, and 1 ..., Fill Ratio Calculator. This calculator will allow you to find the fill ratio using one, two, or three cables within the conduit. If you only have one cable for your conduit, please use only the first cable diameter field. Once the fill ratio calculator is computed, the program tells you if it falls within Corning’s recommended guidelines. , Conduit Wire Fill Charts; Per National Electrical Code - Chapter 9, Table 4: Flexible Metal Conduit - BR, ABR: Liquidtight Flexible Metal Conduit - LA, LT, EF, ATLA ..., A 40% full conduit may look completely full, for example. Conduit Fill Chart. This table provides the initial recommended 40% fill capacity for Ethernet and coaxial cable based upon conduit trade size and cable jacket diameter. Take note that conduit less than 3/4" (3/4 trade size) is not recommended for communications cable installation., The 2020 Edition offers the most pertinent, up-to-date information for electricians, including updated National Electric Code (NEC) and table change information, mathematical formulas; National Electrical Manufacturers Association (NEMA) wiring configurations; a conduit bending guide, ampacity and conduit fill information, transformer and ..., Conduit Fill Tables. Need to find the number of conductors that will fit in a specific conduit? Simply select the conductor's insulation and then the conduit type and get the wire fill for each size., 14 4 13 22 33 52 76 134 202 291 396 518 12 3 9 16 24 38 56 98 147 212 289 378 10 1 6 10 15 24 35 62 93 134 182 238 8 1 3 6 9 14 20 35 53 77 105 137, Our NEC Conduit Fill Chart calculates THWN and THHN wire fill for Schedule 40 and Schedule 80 PVC conduit pipe using conduit trade size and wire size and conductor size. Shop Elliott Electric Supply for wholesale electrical supplies, including schedule 40 PVC, schedule 80 PVC, THWN wire, THHN wire, and other electrical supplies, Sealtite Fill Chart. 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2" 3" 3-1/2" 4" Trade Sizes in Inches. TYPE of WIRE. Cond. Size (AWG/kcmil) 14 8 13 22 36 63 81 134 201 308 401 523 12 5 9 16 26 46 59 97 146 225 292 381 10 3 6 10 16 29 37 61 92 141 184 240 8 1 3 6 9 16 21 35 53 81 106 138, to be run in the conduit • Step 2: Look on the Cross Sectional Area (CSA) chart (table 1), look up the CSA taken up by each of the wires from Step 1 • Step 3: Add all the CSA values together (Total CSA) • Step 4: Look on the conduit fill value chart (table 2) and choose a conduit with a 40% fill value higher than the total CSA from Step 3, The answer you can bet will land on .5 for resistance or .8 for conductor fill. NEC Chapter 9 Table 4 and NEC Chapter 9 Notes to tables Note 7. Remember it is .5 for resistance or .8 for conduit fill requirements, and when you land on the number, adjust up. Special Notes: Remember 40% fill allowed in a conduit with more than two conductors in a ...