Each wire connecting to a device counts as one wire of that size. Wire size, voltage drop, current, voltage, active apparent reactive power, power factor, resistance, maximum wire length, current carrying capacity of insulated conductors bare conductors busbar, conduit fill. Cable pro pc easily design low voltage cable systems. Electrical calculations is the best app in the electrical sector, it has many calculations that can help you in your work. Helps determine the proper wire size for an electrical circuit based on the voltage drop and current carrying capacity of.
What is the minimum size aluminum conductors feeding this dwelling. Then add each row installed on that same side of the box. Box fill isnt just the number of wires in the box its the total volume of the. To help you work most efficiently, weve created a number of calculating tools to aid in your wire and cable installations. Conductors that originate within the clamp assembly shall be included in conductor fill calculations covered in 314. Box sizing for electrical junction, fixture and device. The details display complete hanger assemblies, including upper attachments, clamps, hangers, brackets, and floor stands. Nov 15, 20 pull and junction boxes, 4 awg and larger, 2017 nec 314. Electrical calculations software electrical calculations v. Box fill pro is an easy to use electrical app that calculates box fill requirements for an electrical wiring box that provides detailed calculations. Loadcalc panel schedule performs load calculations for residential, commercial and industrial occupancies. Wires can loosen or spring free of wire nuts, causing the circuit to fail, or the insulation on. It is intended to provide a free opensource alternative to mathcad.
The wireways fill module utilizes nec specifications 376. The 50 best electrical engineering software tools pannam. Paneldes software facilitates and enhances the construction of electrical models and electrical panel general arrangements, and performs wire routing, filling, and wire length calculations, as well as interference analysis and materials reporting. This webpage calculator is still online but a more complete raceway and trough fill application is included in the code calculator suite. Box fill calculator is a fast, easy way to create a schedule of box fill calculations for any size of job or just to perform a single calculation on the fly. Article 314 of the national electrical code covers the installation and use of all boxes and conduit bodies used as outlet, device, junction or pull boxes depending on their use. Put your pencil down and start making professional, consistent calculations today.
Proper box fill calculations is a vital cog in the safe installation of the electrical wiring installed in commercial and residential buildings. This single family dwelling has a floor area of 2500 sq. The reports are detailed, concise and professional. Conduit fill is the percent of area inside the conduit taken up by the cables. The most popular version among electrical calculator users is 3. Paneldes panel is the 3d cad design module of eds used for the creation of electrical panels. Sizing calculator wireway selection 4x4 6x6 8x8 4o uses splices and taps splices and taps are permitted within a wireway, provided they are accessible. The electrical calculations installer is commonly called busbar. Select the wire insulation, wire size, number of conductors, type of raceway, fill type either 25 per cent, 60 per cent or auto and this program finds the correct raceway size. Each wire coming into a splice connector is counted as one wire. The general electrical load requirements are based on the inside square feet area of the home which is then used to calculate the basic lighting load and required appliance circuits. Designspark electrical is very good with an intuitive user interface, its totally free to download and is a nononsense software. Create an unlimited list of calculations that automatically save. Find cable sizes, voltage drops, fault loop impedance and maximum demand.
The simpull 600v calculator provides multiple calculators within a single app that are connected by specific wire pull characteristics i. Do you need to calculate a box size given the wires that are going into the box. Electrical tools ms excel spreadsheets this section is dedicated to tools every electrical engineer can use in daily work. All electrical calculations are derived from nec 2014. Make your selections below and the form will automatically update the values. Electrical box fill calculations construction monkey. Learn more cable pro web cloudbased edition of our popular cablesizing software. Electrician calculators the premiere site for online electrical calculators and programs from the national electrical resource center.
Wire sizing, conduit fill, fault current, power factor, transformer, underground cover, lighting design, motors, voltage drop and more, all in compliance with the most current national. Electrical calculations software provides calculations and ratings for. Calculates the volumetric capacity, in cubic inches, of device or splice boxes, required for any quantity of conductors, devices, and fittings calculates the minimum required size of straight pull and angleu pull boxes. Calculating the correct size of pull box needed can be complicated, so please feel free to contact us or call 8007671576 if you need assistance. Box fill calculations, part iii electrical contractor magazine. Here are several ways to avoid overcrowding electrical boxes. Electrical cable calculator software engcalc electrical pocketpc calculator v. The following box is quite complicated with many conduits entering the same sides of the box.
Current nec tables in the software ensure that your calculations are precise. This is the new kid on the block in terms of onscreen takeoff and earthworks estimating having been launched in 2014. Just answer the questions below and we will do the box fill calculations for you based on article 314. Electrical calculations free version download for pc.
Weve tried to take a fresh look at earthworks estimation to create the most userfriendly package for earthworks estimators. The residential electrical load calculator is preloaded with electrical information for you to chose from. Bline series software and resources electrical and industrial. Free electrical engineering calculations shareware and freeware. The app will calculate the conduit fill percentages and jam probability for multiple. I can testify that checking for box fill provisions will eventually become second nature to the inspector and the installer if they make it a normal part of their daily inspection or installation routine. Wireway fill and sizing volts electrical design software. I have provided a free service to over 20 computer programs for over 15 years. Calculate masonry, octagon, device, switch, 4 square, 41116 square, fs and fsd electrical boxes. Electrical cable calculator, free electrical cable calculator software downloads.
Electrical calculation software free downloads and. Most of these requirements can be found in article 314 outlet, device, pull, and. Nec electrical design software performs electrical design. Click on the question mark buttons for more specific. Mike holt worked his way up through the electrical trade from apprentice electrician through electrical contractor, to become one of the most recognized experts in the world as it relates to electrical power installations. Electrical code, chapter 9 140 52 raceway and nipple calculation 145 53 existing raceway calculation 147 54 tips for raceway calculations 148 part b outlet box fill calculations 149 55 sizing box conductors all the same size table 37016a 149 56 conductor equivalents 37016b 149 57 sizing box different size. The answer to each question is offered up on a separate slide, which follows. You then add up all the wires that are counted and all the items counted extra like yoke mounted devices and internal cable clamps. Any combination of conductors per fill calculation including bare and custom. Thus, the total box volume for the ganged box is 36 in. The time required to write these programs was well over 3000 hours.
Box sizing for electrical junction, fixture and device boxes. In 1974, mike realized there was a need for quality electrical training and opened mike holt. This downloadable program contains an electronic catalog in pdf format adobe acrobat reader required linked with 93. Electrical load calculations for residential panel online. This app offers features such as bury depth, box conduit fill, fault calculator, and voltage drop. Residential load calculations ms excel spreadsheet. Electrical boxes volume and fill calculations electrical. Electrical calculations was developed to work on windows xp, windows vista, windows 7, windows 8 or windows 10 and can function on 32bit systems. Let our electrical software search the nec and do the math for you. This article also covers manholes and other electric enclosures intended for personnel entry. Apr 07, 2014 a clamp assembly that incorporates a cable termination for the cable conductors shall be listed and marked for use with specific nonmetallic boxes. Lets look closer at these requirements for box fill calculations. Each conductor originating outside the box that is terminated or spliced inside the box must be counted once. Nov 11, 2018 box sizing per requirements of the 2017 nec in simple 4 step process.
Boxfill calculations, part iv electrical contractor magazine. These conductors must have ample free space to allow proper dissipation of heat from the. We provide a range of powerful and easytouse electrical engineering software packages. Home resources calculators conduit fill calculator. It performs wire sizing, conduit fill, motor, lighting, panel schedule, transformer, voltage drop, box fill, fault current, and power factor correction calculations.
Electricians exam electrical training solutions mike. Conductor selection and calculations, overcurrent protection, raceway, box, and fitting fill requirements, wiring devices, distribution equipment, distribution system transformers, lamps, ballasts, and components, motor calculations, motor maintenance, part. Conduit fill is the percent of area inside the conduit taken up by the cable s. Free electric load calculator zenfixit home and shop. Electrical calculations is categorized as office tools.
Locknuts, bushings, wire connectors and other small fittings are not counted in box fill calculations. These spreadsheets below will make your job much more easier, alowing you to shorten the time used for endless calculations of cables, voltage drop, various selections of circuit breakers, capacitors, cable size and so on. Electrc nec calculator is a suite of calculators that will perform all of your common electrical design tasks accurately, professionally, and consistently. Electrical calculations software free download electrical. The app includes 2014 nec calculations and is an excellent resource for electricians and engineers. Helps determine the proper wire size for an electrical circuit based on the. Pull and junction boxes, 4 awg and larger, 2017 nec 314. The conductors, including splices and taps, shall not fill the wireway to more than 75 percent of its area at the point of a splice or tap. Electrical cable calculator software free download. Using your calculator add 7500, 3000, 1500 12000 now subtract 3000 9000 now multiply by.
Solve for any size box including custom and compound. Provides quick and easy results for the conduit fill percent, per nec guidelines. Locknuts, bushings, wire connectors and other small fittings are not counted in boxfill calculations. No matter how many ground wires, they only count as one conductor in the box. The most popular version among electrical calculator users is. You then select a box that will has that much volume. Electrical load calculations for residential panel. A great tool to help electricians, engineers and contractors answer the question, what. Software electrotechnik pty ltdelectrical calculations. Calculate series segment voltage drops, nec article 220 services and feeders, fault current, load calculations, motor calculations, conduit fill, box fill and wireway fill. The construction monkey conductor calculator lets you figure out electrical characteristics of wires including the ampacity, circular mills, area, resistance, reactance, impendance, conduit fill, and voltage drop. Multiply that by the cubic inch of the size of wire on table 314. The hangercad contains a collection of details showing common bline series pipe support applications.
How to calculate underground pull box sizing chapman electric. Every outlet box has a specific amount of space for conductors, devices, and fittings. Get access to premium hvmvlv technical articles, electrical engineering guides, research studies and much more. The default filenames for the programs installer are elcalc32.
The code quiz features three questions that are presented in a truefalse, fillintheblank, or multiple choice format. Construction monkey calculator that provides calculations for an electrical box size utilizing the national electrical code. Boxfill calculations, part iv electrical contractor. Residential load calculations electrical engineering portal.
Box fill calculations, part iii electrical contractor. Electricity is delivered to your home by the service entrance which is sized based upon calculations dictated by the nec and the local codes authoritys along with the electric utility provider. The module performs calculations of both cables and single conductors dependent on conductor size, insulation type, diameter and usage with a very simple user interface. Cable size size of conductors table 2 allowable cable area in2 1. It helps you to shape up your technical skills in your everyday life as an electrical engineer. Most jurisdictions use the nec standard method calculations without significant modification.
Electrical design, cable sizing and certification software. Construction monkey has the perfect calculator for you. Voltage drop, ground wire sizing, ampacity adjustments, phase wire attributes, sidewall tension pressure and reel sizing and generates individual nec compliant answers. Demand factoring, neutral loads, panel schedules, panel directory reports, and more, all in compliance with the most current national electrical code requirements. Take this weekly quiz to test your knowledge of the 2017 national electrical code nec requirements. Here we list the electrician apps that are available on iphone and ipad devices, both free and paid. The actual developer of the software is mc group inc. This is the most common type of installation within junction, outlet and device boxes. Bline series software and tools electrical and industrial. A clamp assembly that incorporates a cable termination for the cable conductors shall be listed and marked for use with specific nonmetallic boxes. Electrical estimating software conest software systems. Mike holt smart phone apps for the electrical industry. The calculations to discover the size of a box with 4 awg. He was a journeyman electrician, master electrician, and electrical contractor.