Based on not more than three conductors in raceway or cable or earth per nec table 310. Pdf cable ampacity calculation and analysis for power. Engineering data for copper and aluminum conductor electrical. Cymcap is windowsbased software designed to perform thermal analyses.
Southwire, an industry leader in wire and cable solutions, and go industries, dba longhorn reels, a texasbased company that manufactures wire and cable solutions, have resolved pending litigation. Engineering data for copper and aluminum conductor electrical cables. Eprcpe power cable with copper wire shield 5kv and 8kv. Epr cable compound is highly stable chemically and thermally, and eprbased cables can be. Cable ampacity is divided into three conditions, normal steadystate, emergency and load dump. In this work, ampacity analyzes of 154 kv high voltage xlpe underground power cable are made using ansys 5. Variable steel core stranding enables desired strength to be achieved without sacrificing ampacity.
Cable sizing and its effect on thermal and ampacity values in. Epr 10 to 30 104 oil cable 18 to 30 104 ii currentdependent losses. Cable ampacity calculation and analysis for power flow optimization. Cable ampacity calculation software power flow etaps cable ampacity software is used for calculating cable ampacity based on nec, ieee, icea, iec, and bs standards for underground duct banks, cable trays cyme software, power cable ampacity rating. Epr insulation cpe jacket ul listed typetc specifications 1. The accuracy of the calculation provides increased confidence in the design, upgrading, and analysis projects.
High voltage xlpe cable systems techincal user guide brugg cables page 2. The cymcap software is dedicated to the calculation of ampacity and temperature rise calculations for power cable installations. These thermal analyses pertain to temperature rise andor ampacity calculations using the. Current rating for xlpe land cable systems continuous current ratings for singlecore cables are given in tables 14.
Epr cpe power cable with copper wire shield 5kv and 8kv features. Xlpe is the recognized abbreviation for crosslinked polyethylene. If a cable is loaded continuously above rated ampacity the insulation temperature design limits will be exceeded. It addresses both steady state and transient thermal cable ratings. Currentka required field numeric value greater than 0 durations. Cable sizing and its effect on thermal and ampacity values. Home download center electrical software cable ampacity calculator description this is digital version of the most frequently used ampacity tables that you would find in electrical codes canadas cec and u. Practical power cable ampacity analysis ced engineering. Aluminum conductor steel reinforced bare applications used as bare overhead transmission conductor and as primary and secondary distribution conductor and messenger support. Programs utilize values of cable constituent thermal. Practical power cable ampacity analysis velimir lackovic, mscee, p. Cablesizer cable sizing calculations to iec and nec. This and other crosslinked synthetic materials, of which epr ethylene propylene rubber is a notable example, are being increasingly used as cable insulants for a wide range of voltages.
Use of computer programs for calculation of underground cable ampacity software programs usually use neher mcgrath method for the calculation of the cable ampacity. Mv105, 3% jacketed epr 15kv class b stranded copper, extruded semiconductor shield, insulated with heat and moisture resistant epr 3% insulation level, with conductor jacket pvc, cpe, etc. Three types of solid dielectric cable are xlpe crosslinked. Cable ampacity calculator electrical engineering portal. Cablesizer cable sizing calculations to iec and nec standards. Aug 11, 2010 learn about cable ampacity features in etap 7. Study on the effect of cable group laying mode on temperature. Shop epr cable, 1212 by southwire 59196699 at graybar, your trusted resource for shielded electronic wire and cable and other southwire products. North american history of successful long term performance.
High voltage xlpe cable systems technical user guide. The original version of this package was developed jointly by ontario hydro hydro one, mcmaster university, under the auspices of the canadian electricity association. Phase identified and cabled with fillers and bare copper ground conductor. The software examines cable temperature and ampacity in performing analysis of existing systems. Cme switchboard cable sis, xlpe insulated, 600 v, copper. Calculation of the cable ampacity considers only power cables since control cables. Cable core covered with binder tape and overall pvc jacket. Thermal and mechanical properties of epr and xlpe cable compounds article in ieee electrical insulation magazine 223. If you are interested in xlpe ampacity table,please feel free to give your inquiry in the form or the email below. Pdf an assessment of the methods for calculating ampacity of.
Okonite 1 printed on post consumer paper 12017 okonite cables. High voltage xlpe cable systems techincal user guide. Table 6 5 single conductor cable underground ducts one circuit, three cables in separate ducts 22 table 6 6 single conductor cable underground ducts two circuits, six cables. The cymcap software is dedicated to performing ampacity and temperature rise. It is designed for contractors, electricians, and other electrical. Etaps cable ampacity software is used for calculating cable ampacity based on nec, ieee, icea, iec, and bs standards for underground duct banks, cable trays dstar underground cable ampacity. Our wide selection is elegible for free shipping and free returns.
Engineering data for copper and aluminum conductor electrical cables 102 hilltop road, ramsey, nj 07446 201. If you continue without changing these settings, you consent to this. General cables ampacity calculator is a quick and easy tool to get conductor ampacities for different temperature ratings. Thermal and mechanical properties of epr and xlpe cable compounds. Cable sizing and its effect on thermal and ampacity. Cable ampacity software cable sizing software cable. These limits should not be used for cables subjected to pulling tensions during installation. Epr cable technology epr cable technology consortium. Cable ampacity is limited by the peak temperature to which the insulation is subjected, which is the sum of the. Cable or conductor sizing is the process of selecting appropriate sizes for electrical power cable conductors. High voltage xlpe cable systems techincal user guide brugg cables page 3 1. Ansiicea s94649 aeic cs8 ul 1072, when specified rus 1728fu1 construction the cable is composed of a solid or moisture blocked reverse lay, compressed stranded soft drawn copper, or a solid or. Xlpe insulation southwires csa shielded industrial medium voltage cables are environmentally friendly with no lead epr insulation. Southwire recognized on top employer list for 2020.
Usamp prime insulated cable ampacity software models all types of underground power cables pipetype, extruded, and solid paper. Ampacity and other design considerations for medium voltage. Eatons cyme cymcap software is for performing ampacity and temperature rise calculations for power cable installations. Thermal and mechanical properties of epr and xlpe cable.
As the base resin is too soft for direct application in cable, a range of fillers, dominated by highly refined clay, is employed to achieve the required mechanical and electrical properties. The continuous current ratings are calculated according to iec 60287 series of standards and with the following conditions. All 4conductor values have been derated per 2008nec table310. As a cable ampacity analysis application, etap engineering software determines the cable current capability based on ieee, iec, icea, nec nfpa, bs, and. Power cable epr insulated conductors, pvc jacket, 600v on. This research uses software to calculate cable ampacity limits. Cable ampacity refers to a cable when energy is transmitted in the amount of current, under conditions of thermal stability, when the cable conductor reachs longterm permissible operating temperature, power cable ampacity is said as cable allowed ampacity for longterm continuous load. Cablesizer is an automated cable sizing and design calculation tool to iec and nec standards. It could be seen that the electric current density and joule loss distribution is not uniform. General cable is at the forefront in the development, design, manufacture, marketing and distribution of aluminum, copper and fiber optic wire and cable for the energy, construction, industrial, specialty and. 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. 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.
The cookies settings on this website are set to allow all cookies to give you the very best experience. Power cable installation guide figure f5 multiple sheaves figure f6 sheave arrangements for feeding into cable tray training radius the training radius is the final positioning of cable ends after the cable has been placed in the raceway. The epr cable dielectrics do not suffer from such thermal expansion and maintain a more stable yield stressas will figure 4. Medi ltage single conductor 5 35 mv cable copper mv cable aluminum nec table 310. Southwire 15kv primary ud epr cable is manufactured to the latest edition of the following specifications, and in the order as listed. Cable ampacity software cable sizing software cable derating. There have been many instances of these cable systems failing after being placed in service due to.
Table 6 24 three conductor cable conduit in air one isolated cable 38 table 6 25 nec code installations ampacity at 75c conductor temperature 30c ambient 38. General cable conductor ampacity calculator for ios free. Calculate the voltage drop of a defined cable and check the maximum length. Cable sizes are typically decribed in terms of crosssectional area, american wire gauge awg or kcmil, depending on geographic region. Power used cyme internationals cable ampacity program cap to model. Practical power cable ampacity analysis cedengineering. The calculation determines the proper cable sizes to carry specified loads in designing new systems and upgrading power cable installations. The base polymer of epr cable was first developed in the early 1960s can vary in crystallinity, chemistry, etc. Smaller outside dimensions reduce the size of duct needed or increase the ampacity per duct. The primary purpose of the ampacity calculations was to detennine a minimum conductor size and cable system configuration based on the design requirements provided by xcel energy. Introduction cable network usually forms a backbone of the power system. Conduit fill calculator conduit fill is the percent of area inside the conduit taken up by the cables.
Cable ampacity software is designed to simulate the thermal behavior of power cable installations. Therefore, complete analysis of the power systems includes detailed analyses of the cable network, especially assessment of the. Through its three divisions and four strategically located distribution centers, cme serves its customers in residential, commercial. The accuracy of the software provides increased confidence when upgrading power cable installations and designing new ones. Dielectric losses in xlpe cables are lower than for epr and fluidfilled cables. General information on high voltage cable systems 1. No download needed, direct access from your web browser. High voltage three phase cable ampacity quickfield fea software. Through its three divisions and four strategically located distribution centers, cme serves its customers in residential, commercial, institutional, utilities, industrial and oem markets. They consider only temperature limited, current carrying capacity of cables. Provides quick and easy results for the conduit fill percent, per nec guidelines. Reduced conductor size and shield system provides the smallest premium mediumvoltage shielded power cable with full insulation. Xlpe insulation leading electrical wire, cable and.
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