Cable ampacity calculation software

Cable ampacity software cable sizing software cable. Electrical calculation tools schneider electric global. It is designed to estimate the steady state and transient state of overhead conductor current and temperature according to the calculation methods of cigre, webs, kirn. Hello could somebody help me and give me a tip where can i download for free commercial usage some tool for calculation of cable ampacity according to iec 60 287 not for us standard.

Cable ampacity calculation and analysis for power flow optimization abstract. Cable ampacity calculation and analysis for power flow. The accuracy of the calculation provides increased confidence in the design, upgrading, and analysis projects. Use of computer programs for calculation of underground cable ampacity software programs usually use neher mcgrath method for the calculation of the cable ampacity. Shielding of an electric power cable is the practice of confining the dielectric field of the cable to the insulation of the conductor or conductors. Calculations are in accordance with the industry accepted nehermcgrath calculation procedures. An audit begins with evaluating the utilitys load shape, the circuit plan and profile drawings, manufacturers cable data, any soil thermal analyses, etc. Ampacity calculation results cable ampacities can be calculated based on specified temperature or temperatures can be calculated based on specified load amps. Ampacity level taking into account the installation method of the cable, the software determines the cable size for the installed ampacity. The reactance for single core cables is selected from the flat, touching column in from table 30 in asnzs 3008. Cable sizing software computes the size of the cable by also considering overload protection. The calculation determines the proper cable sizes to carry specified loads in designing new systems and upgrading power cable installations.

Click on the screenshot thumbnails for larger image and more info about each electrical calculator. Functions of shielding a strand shield is employed to preclude excessive voltage stress on voids between conductor and insulation. Look up the right values and apply correction factors quickly. Cable sizing software cable sizing calculation etap. Voltage enter the voltage at the source of the circuit. Iec 60287 calculation of the continuous current rating of cables 100% load factor is the international standard which defines the procedures and equations to be used in determining the current carry capacity of cable. Enter the information below to calculate the maximum allowable ampacity for currentcarrying conductors. The software is suitable for use with windows 7, 8. Cable ampacity power system software and arc flash. Etap cable sizing program calculates the minimum size required by meeting the overload protection conditions between derated ampacity, operating current and nominal current.

Appendix b in the nec assumes the same wire size in each conduit and each wire has the same amp loading. They consider only temperature limited, current carrying capacity of cables. The cymcap software is dedicated to the calculation of ampacity and temperature rise calculations for power cable installations. Ampacity is defined as the maximum current carrying capacity of any cable. For systems with all identical cables, a single ampacity can be calculated applicable to all conductors in the system. This characteristic parameter depends on many of the. Then the program retrieves the standard dimensional features and calculation constants for the cable and displays them. Underground cable ampacity android apps on sep 08, 2014 the underground ampacity calculator is based on the 2012 edition of the canadian electric code and is used to calculate the maximum ampacity of underground cable ampacity calculation software etap. Engineering data for copper and aluminum conductor electrical cables 102 hilltop road, ramsey, nj 07446 201.

Engineering data for copper and aluminum conductor. This paper presents a study of the factors that determine cable ampacity adjustments and corrections in the electrical distribution network. Abstractthe ampacity of underground power cable lines is limited by the maximal allowable temperature of the conductor. Comparison of finite element analysis to iec60287 for. Electrical calculation tools is a set of 7 computer aided online tools designed to help you.

The reactance for multicore core cables is selected from the circular conductors column in from table 30 in. Skm software help desk knowledge base cable ampacity. It is designed for contractors, electricians, and other electrical. This current carrying capacity is normally given in amperes. The tables in this standard reflect these changes in methodology and provide the user with a vast array of cable ampacity ratings for 600 v utilization cables, medium voltage distribution. General calculations excerpt from prysmians wire and. Duct bank ampacity calculation using ampcalc or etap or similar software is the best way to get a good handle on what the resulting duct and cable temperatures will be. Protective device overload cable sizing software computes the size of the cable by also considering overload protection. Ctc current and temperature calculation of overhead conductors is permanently enhanced since 1998 and presently available in version 6.

Singlephase voltages are usually 115v or 120v, while threephase voltages are typically 208v, 230v or 480v. The software examines cable temperature and ampacity in performing analysis of existing systems. Thursday, july, 2017 cable ampacity constants pvc conduit cable ampacity triplexed cables monday, january 23, 2017 cable ampacity triplex triplexed cables detail 7 detail 8. Once installed on your site, certain optional features which can be turned.

Ampacities the ampacity is the maximum designed current of a conductor. Configuration optimization of cables in ductbank based on. This includes the modeling of ductbanks, backfills or soil layers with different thermal resistivities each. The two solution methods can be utilized within the same system for the same calculation. In addition, new forced convection heat transfer analytical methods were employed for cables in air, which provided for1ess conservative ampacity ratings. We use etaps stateoftheart cable thermal software module and accurately determine the ampacity and thermal limitations of different underground raceways and duct banks. As a cable ampacity analysis application, etap engineering software determines the cable current capability based on ieee, iec, icea, nec nfpa, bs, and nfc standards. Electrical engineers use powertools to perform harmonic analysis, transient stability analysis, short circuit analysis, and to determine demand load, voltage drop, arcflash hazard analysis and protective device coordination. To properly design a cable system and optimize cable configuration, calculating the ampacity value of various cables with differ. Cable sizing and its effect on thermal and ampacity values.

Etap electrical engineering software offers a comprehensive set of cable current carrying capacity ampacity and sizing modules based on the following standards and guidelines. Usamp prime insulated cable ampacity software models all types of underground power cables pipetype, extruded, and solid paper. You must first generate results for at least one of the calculations i. This is digital version of the most frequently used ampacity tables that you would find in electrical codes canadas cec and u. General cables ampacity calculator is a quick and easy tool to get conductor ampacities for different temperature ratings. It takes less space on screen than would the paper version on your desk. Cable sizing and its effect on thermal and ampacity values in underground power distribution over the past decade, underground power distribution has become increasingly popular due to its reliability, safety, aesthetic characteristics, as well as the ever increasing focus on the environmental impacts of the various stages of. For the love of physics walter lewin may 16, 2011 duration.

It is accomplished by means of strand and insulation shields. Ampacity audits an ampacity audit is intended to carefully determine the actual ampacity of an existing cable system. A given conductor has several ampacities, depending on its application and the assumptions used. An alternative to the standard is the finite element. General cable conductor ampacity calculator for ios free. Gridcablemax is a user friendly program that determines cable ratings with total accuracy. A underground duct bank cable ampacity and thermal calculation study will determine if your duct bank design will support the loads and not cause conductor over heating. Iec 60502 cable capacity calculations for power cables per iec 60502. Ampcalc is suitable for cable installations utilized in industrial, commercial and utility electrical power distribution systems. House and tuttle 1958 derive the ampacity calculations described below, which are used in ieee std. Overview downloads buy now try now freeware upgrades contact us. Pdf cable ampacity calculation and analysis for power. Okonite 1 printed on post consumer paper 12017 okonite cables. Cymcap cable ampacity software power cable ampacity rating simgrid markets cymcap software and provides technical support as well as trainings.

Cable sizing, sustained current capacity bs 7671 wiring regulations, voltage drop clctr 50480, fault level and impedance iec 60909. Finding the original rca value is easier than it looks. Calculate conductor ampacity with temperature correction. This characteristic parameter depends on many of the cable properties, installation conditions and. Cablesizer cable sizing calculations to iec and nec. The standard is applicable to all alternating current voltages and direct current cables up to 5kv. For a quick approximation of the derated ampacity add this calculated thermal ohm feet value to the rca value used in the nm original calculation and recalculate the ampacity. They may be edited onscreen to accommodate nonstandard features. Electrical calculation software lighting calculation software for electrical engineers, consultants and contractors. Normally the iec 60287 standard is used for steady state ampacity calculation. Wire size choose the size awg or kcmil of the wire for which to calculate the maximum allowable ampacity based on the conditions chosen above in the calculator phases select the number of phases in the circuit. The wire ampacity calculator will quickly calculate the maximum allowable current through a conductor based on wire size awg or kcmil, wire insulation, conductor type and installation method. Cable ampacity software additional modules offer extended capabilities to software, allowing modeling more installations, particularly nonstandard installations.

Calculation tools for low voltage electrical network. The accuracy of the software provides increased confidence when upgrading power cable. Our software has been designed to calculate the current rating, temperature rise and cable losses of high voltage power cables under multiple scenarios and installation conditions in accordance with iec standard 60287. Understanding the nehermcgrath calculation and the. Calculation of the cable ampacity considers only power cables since control cables.